paused property\n\t * of the event will be `true`. Also, while paused the `runTime` will not increase. See {{#crossLink \"Ticker/tick:event\"}}{{/crossLink}},\n\t * {{#crossLink \"Ticker/getTime\"}}{{/crossLink}}, and {{#crossLink \"Ticker/getEventTime\"}}{{/crossLink}} for more\n\t * info.\n\t *\n\t * UID.get())\n\t * and should not be instantiated.\n\t * @class UID\n\t * @static\n\t **/\n\tfunction UID() {\n\t\tthrow \"UID cannot be instantiated\";\n\t}\n\n\n// private static properties:\n\t/**\n\t * @property _nextID\n\t * @type Number\n\t * @protected\n\t **/\n\tUID._nextID = 0;\n\n\n// public static methods:\n\t/**\n\t * Returns the next unique id.\n\t * @method get\n\t * @return {Number} The next unique id\n\t * @static\n\t **/\n\tUID.get = function() {\n\t\treturn UID._nextID++;\n\t};\n\n\n\tcreatejs.UID = UID;\n}());\n\n//##############################################################################\n// MouseEvent.js\n//##############################################################################\n\n(function() {\n\t\"use strict\";\n\n\n// constructor:\n\t/**\n\t * Passed as the parameter to all mouse/pointer/touch related events. For a listing of mouse events and their properties,\n\t * see the {{#crossLink \"DisplayObject\"}}{{/crossLink}} and {{#crossLink \"Stage\"}}{{/crossLink}} event listings.\n\t * @class MouseEvent\n\t * @param {String} type The event type.\n\t * @param {Boolean} bubbles Indicates whether the event will bubble through the display list.\n\t * @param {Boolean} cancelable Indicates whether the default behaviour of this event can be cancelled.\n\t * @param {Number} stageX The normalized x position relative to the stage.\n\t * @param {Number} stageY The normalized y position relative to the stage.\n\t * @param {MouseEvent} nativeEvent The native DOM event related to this mouse event.\n\t * @param {Number} pointerID The unique id for the pointer.\n\t * @param {Boolean} primary Indicates whether this is the primary pointer in a multitouch environment.\n\t * @param {Number} rawX The raw x position relative to the stage.\n\t * @param {Number} rawY The raw y position relative to the stage.\n\t * @param {DisplayObject} relatedTarget The secondary target for the event.\n\t * @extends Event\n\t * @constructor\n\t **/\n\tfunction MouseEvent(type, bubbles, cancelable, stageX, stageY, nativeEvent, pointerID, primary, rawX, rawY, relatedTarget) {\n\t\tthis.Event_constructor(type, bubbles, cancelable);\n\t\t\n\t\t\n\t// public properties:\n\t\t/**\n\t\t * The normalized x position on the stage. This will always be within the range 0 to stage width.\n\t\t * @property stageX\n\t\t * @type Number\n\t\t*/\n\t\tthis.stageX = stageX;\n\t\n\t\t/**\n\t\t * The normalized y position on the stage. This will always be within the range 0 to stage height.\n\t\t * @property stageY\n\t\t * @type Number\n\t\t **/\n\t\tthis.stageY = stageY;\n\t\n\t\t/**\n\t\t * The raw x position relative to the stage. Normally this will be the same as the stageX value, unless\n\t\t * stage.mouseMoveOutside is true and the pointer is outside of the stage bounds.\n\t\t * @property rawX\n\t\t * @type Number\n\t\t*/\n\t\tthis.rawX = (rawX==null)?stageX:rawX;\n\t\n\t\t/**\n\t\t * The raw y position relative to the stage. Normally this will be the same as the stageY value, unless\n\t\t * stage.mouseMoveOutside is true and the pointer is outside of the stage bounds.\n\t\t * @property rawY\n\t\t * @type Number\n\t\t*/\n\t\tthis.rawY = (rawY==null)?stageY:rawY;\n\t\n\t\t/**\n\t\t * The native MouseEvent generated by the browser. The properties and API for this\n\t\t * event may differ between browsers. This property will be null if the\n\t\t * EaselJS property was not directly generated from a native MouseEvent.\n\t\t * @property nativeEvent\n\t\t * @type HtmlMouseEvent\n\t\t * @default null\n\t\t **/\n\t\tthis.nativeEvent = nativeEvent;\n\t\n\t\t/**\n\t\t * The unique id for the pointer (touch point or cursor). This will be either -1 for the mouse, or the system\n\t\t * supplied id value.\n\t\t * @property pointerID\n\t\t * @type {Number}\n\t\t */\n\t\tthis.pointerID = pointerID;\n\t\n\t\t/**\n\t\t * Indicates whether this is the primary pointer in a multitouch environment. This will always be true for the mouse.\n\t\t * For touch pointers, the first pointer in the current stack will be considered the primary pointer.\n\t\t * @property primary\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis.primary = !!primary;\n\t\t\n\t\t/**\n\t\t * The secondary target for the event, if applicable. This is used for mouseout/rollout\n\t\t * events to indicate the object that the mouse entered from, mouseover/rollover for the object the mouse exited,\n\t\t * and stagemousedown/stagemouseup events for the object that was the under the cursor, if any.\n\t\t * \n\t\t * Only valid interaction targets will be returned (ie. objects with mouse listeners or a cursor set).\n\t\t * @property relatedTarget\n\t\t * @type {DisplayObject}\n\t\t */\n\t\tthis.relatedTarget = relatedTarget;\n\t}\n\tvar p = createjs.extend(MouseEvent, createjs.Event);\n\n\t// TODO: deprecated\n\t// p.initialize = function() {}; // searchable for devs wondering where it is. REMOVED. See docs for details.\n\t\n\t\n// getter / setters:\n\t/**\n\t * Returns the x position of the mouse in the local coordinate system of the current target (ie. the dispatcher).\n\t * @property localX\n\t * @type {Number}\n\t * @readonly\n\t */\n\tp._get_localX = function() {\n\t\treturn this.currentTarget.globalToLocal(this.rawX, this.rawY).x;\n\t};\n\t\n\t/**\n\t * Returns the y position of the mouse in the local coordinate system of the current target (ie. the dispatcher).\n\t * @property localY\n\t * @type {Number}\n\t * @readonly\n\t */\n\tp._get_localY = function() {\n\t\treturn this.currentTarget.globalToLocal(this.rawX, this.rawY).y;\n\t};\n\t\n\t/**\n\t * Indicates whether the event was generated by a touch input (versus a mouse input).\n\t * @property isTouch\n\t * @type {Boolean}\n\t * @readonly\n\t */\n\tp._get_isTouch = function() {\n\t\treturn this.pointerID !== -1;\n\t};\n\t\n\t\n\ttry {\n\t\tObject.defineProperties(p, {\n\t\t\tlocalX: { get: p._get_localX },\n\t\t\tlocalY: { get: p._get_localY },\n\t\t\tisTouch: { get: p._get_isTouch }\n\t\t});\n\t} catch (e) {} // TODO: use Log\n\n\n// public methods:\n\t/**\n\t * Returns a clone of the MouseEvent instance.\n\t * @method clone\n\t * @return {MouseEvent} a clone of the MouseEvent instance.\n\t **/\n\tp.clone = function() {\n\t\treturn new MouseEvent(this.type, this.bubbles, this.cancelable, this.stageX, this.stageY, this.nativeEvent, this.pointerID, this.primary, this.rawX, this.rawY);\n\t};\n\n\t/**\n\t * Returns a string representation of this object.\n\t * @method toString\n\t * @return {String} a string representation of the instance.\n\t **/\n\tp.toString = function() {\n\t\treturn \"[MouseEvent (type=\"+this.type+\" stageX=\"+this.stageX+\" stageY=\"+this.stageY+\")]\";\n\t};\n\n\n\tcreatejs.MouseEvent = createjs.promote(MouseEvent, \"Event\");\n}());\n\n//##############################################################################\n// Matrix2D.js\n//##############################################################################\n\n(function() {\n\t\"use strict\";\n\n\n// constructor:\n\t/**\n\t * Represents an affine transformation matrix, and provides tools for constructing and concatenating matrices.\n\t *\n\t * This matrix can be visualized as:\n\t *\n\t * \t[ a c tx\n\t * \t b d ty\n\t * \t 0 0 1 ]\n\t *\n\t * Note the locations of b and c.\n\t *\n\t * @class Matrix2D\n\t * @param {Number} [a=1] Specifies the a property for the new matrix.\n\t * @param {Number} [b=0] Specifies the b property for the new matrix.\n\t * @param {Number} [c=0] Specifies the c property for the new matrix.\n\t * @param {Number} [d=1] Specifies the d property for the new matrix.\n\t * @param {Number} [tx=0] Specifies the tx property for the new matrix.\n\t * @param {Number} [ty=0] Specifies the ty property for the new matrix.\n\t * @constructor\n\t **/\n\tfunction Matrix2D(a, b, c, d, tx, ty) {\n\t\tthis.setValues(a,b,c,d,tx,ty);\n\t\t\n\t// public properties:\n\t\t// assigned in the setValues method.\n\t\t/**\n\t\t * Position (0, 0) in a 3x3 affine transformation matrix.\n\t\t * @property a\n\t\t * @type Number\n\t\t **/\n\t\n\t\t/**\n\t\t * Position (0, 1) in a 3x3 affine transformation matrix.\n\t\t * @property b\n\t\t * @type Number\n\t\t **/\n\t\n\t\t/**\n\t\t * Position (1, 0) in a 3x3 affine transformation matrix.\n\t\t * @property c\n\t\t * @type Number\n\t\t **/\n\t\n\t\t/**\n\t\t * Position (1, 1) in a 3x3 affine transformation matrix.\n\t\t * @property d\n\t\t * @type Number\n\t\t **/\n\t\n\t\t/**\n\t\t * Position (2, 0) in a 3x3 affine transformation matrix.\n\t\t * @property tx\n\t\t * @type Number\n\t\t **/\n\t\n\t\t/**\n\t\t * Position (2, 1) in a 3x3 affine transformation matrix.\n\t\t * @property ty\n\t\t * @type Number\n\t\t **/\n\t}\n\tvar p = Matrix2D.prototype;\n\n\t/**\n\t * REMOVED. Removed in favor of using `MySuperClass_constructor`.\n\t * See {{#crossLink \"Utility Methods/extend\"}}{{/crossLink}} and {{#crossLink \"Utility Methods/promote\"}}{{/crossLink}}\n\t * for details.\n\t *\n\t * There is an inheritance tutorial distributed with EaselJS in /tutorials/Inheritance.\n\t *\n\t * @method initialize\n\t * @protected\n\t * @deprecated\n\t */\n\t// p.initialize = function() {}; // searchable for devs wondering where it is.\n\n\n// constants:\n\t/**\n\t * Multiplier for converting degrees to radians. Used internally by Matrix2D.\n\t * @property DEG_TO_RAD\n\t * @static\n\t * @final\n\t * @type Number\n\t * @readonly\n\t **/\n\tMatrix2D.DEG_TO_RAD = Math.PI/180;\n\n\n// static public properties:\n\t/**\n\t * An identity matrix, representing a null transformation.\n\t * @property identity\n\t * @static\n\t * @type Matrix2D\n\t * @readonly\n\t **/\n\tMatrix2D.identity = null; // set at bottom of class definition.\n\t\n\n// public methods:\n\t/**\n\t * Sets the specified values on this instance. \n\t * @method setValues\n\t * @param {Number} [a=1] Specifies the a property for the new matrix.\n\t * @param {Number} [b=0] Specifies the b property for the new matrix.\n\t * @param {Number} [c=0] Specifies the c property for the new matrix.\n\t * @param {Number} [d=1] Specifies the d property for the new matrix.\n\t * @param {Number} [tx=0] Specifies the tx property for the new matrix.\n\t * @param {Number} [ty=0] Specifies the ty property for the new matrix.\n\t * @return {Matrix2D} This instance. Useful for chaining method calls.\n\t*/\n\tp.setValues = function(a, b, c, d, tx, ty) {\n\t\t// don't forget to update docs in the constructor if these change:\n\t\tthis.a = (a == null) ? 1 : a;\n\t\tthis.b = b || 0;\n\t\tthis.c = c || 0;\n\t\tthis.d = (d == null) ? 1 : d;\n\t\tthis.tx = tx || 0;\n\t\tthis.ty = ty || 0;\n\t\treturn this;\n\t};\n\n\t/**\n\t * Appends the specified matrix properties to this matrix. All parameters are required.\n\t * This is the equivalent of multiplying `(this matrix) * (specified matrix)`.\n\t * @method append\n\t * @param {Number} a\n\t * @param {Number} b\n\t * @param {Number} c\n\t * @param {Number} d\n\t * @param {Number} tx\n\t * @param {Number} ty\n\t * @return {Matrix2D} This matrix. Useful for chaining method calls.\n\t **/\n\tp.append = function(a, b, c, d, tx, ty) {\n\t\tvar a1 = this.a;\n\t\tvar b1 = this.b;\n\t\tvar c1 = this.c;\n\t\tvar d1 = this.d;\n\t\tif (a != 1 || b != 0 || c != 0 || d != 1) {\n\t\t\tthis.a = a1*a+c1*b;\n\t\t\tthis.b = b1*a+d1*b;\n\t\t\tthis.c = a1*c+c1*d;\n\t\t\tthis.d = b1*c+d1*d;\n\t\t}\n\t\tthis.tx = a1*tx+c1*ty+this.tx;\n\t\tthis.ty = b1*tx+d1*ty+this.ty;\n\t\treturn this;\n\t};\n\n\t/**\n\t * Prepends the specified matrix properties to this matrix.\n\t * This is the equivalent of multiplying `(specified matrix) * (this matrix)`.\n\t * All parameters are required.\n\t * @method prepend\n\t * @param {Number} a\n\t * @param {Number} b\n\t * @param {Number} c\n\t * @param {Number} d\n\t * @param {Number} tx\n\t * @param {Number} ty\n\t * @return {Matrix2D} This matrix. Useful for chaining method calls.\n\t **/\n\tp.prepend = function(a, b, c, d, tx, ty) {\n\t\tvar a1 = this.a;\n\t\tvar c1 = this.c;\n\t\tvar tx1 = this.tx;\n\n\t\tthis.a = a*a1+c*this.b;\n\t\tthis.b = b*a1+d*this.b;\n\t\tthis.c = a*c1+c*this.d;\n\t\tthis.d = b*c1+d*this.d;\n\t\tthis.tx = a*tx1+c*this.ty+tx;\n\t\tthis.ty = b*tx1+d*this.ty+ty;\n\t\treturn this;\n\t};\n\n\t/**\n\t * Appends the specified matrix to this matrix.\n\t * This is the equivalent of multiplying `(this matrix) * (specified matrix)`.\n\t * @method appendMatrix\n\t * @param {Matrix2D} matrix\n\t * @return {Matrix2D} This matrix. Useful for chaining method calls.\n\t **/\n\tp.appendMatrix = function(matrix) {\n\t\treturn this.append(matrix.a, matrix.b, matrix.c, matrix.d, matrix.tx, matrix.ty);\n\t};\n\n\t/**\n\t * Prepends the specified matrix to this matrix.\n\t * This is the equivalent of multiplying `(specified matrix) * (this matrix)`.\n\t * For example, you could calculate the combined transformation for a child object using:\n\t * \n\t * \tvar o = myDisplayObject;\n\t * \tvar mtx = o.getMatrix();\n\t * \twhile (o = o.parent) {\n\t * \t\t// prepend each parent's transformation in turn:\n\t * \t\to.prependMatrix(o.getMatrix());\n\t * \t}\n\t * @method prependMatrix\n\t * @param {Matrix2D} matrix\n\t * @return {Matrix2D} This matrix. Useful for chaining method calls.\n\t **/\n\tp.prependMatrix = function(matrix) {\n\t\treturn this.prepend(matrix.a, matrix.b, matrix.c, matrix.d, matrix.tx, matrix.ty);\n\t};\n\n\t/**\n\t * Generates matrix properties from the specified display object transform properties, and appends them to this matrix.\n\t * For example, you can use this to generate a matrix representing the transformations of a display object:\n\t * \n\t * \tvar mtx = new createjs.Matrix2D();\n\t * \tmtx.appendTransform(o.x, o.y, o.scaleX, o.scaleY, o.rotation);\n\t * @method appendTransform\n\t * @param {Number} x\n\t * @param {Number} y\n\t * @param {Number} scaleX\n\t * @param {Number} scaleY\n\t * @param {Number} rotation\n\t * @param {Number} skewX\n\t * @param {Number} skewY\n\t * @param {Number} regX Optional.\n\t * @param {Number} regY Optional.\n\t * @return {Matrix2D} This matrix. Useful for chaining method calls.\n\t **/\n\tp.appendTransform = function(x, y, scaleX, scaleY, rotation, skewX, skewY, regX, regY) {\n\t\tif (rotation%360) {\n\t\t\tvar r = rotation*Matrix2D.DEG_TO_RAD;\n\t\t\tvar cos = Math.cos(r);\n\t\t\tvar sin = Math.sin(r);\n\t\t} else {\n\t\t\tcos = 1;\n\t\t\tsin = 0;\n\t\t}\n\n\t\tif (skewX || skewY) {\n\t\t\t// TODO: can this be combined into a single append operation?\n\t\t\tskewX *= Matrix2D.DEG_TO_RAD;\n\t\t\tskewY *= Matrix2D.DEG_TO_RAD;\n\t\t\tthis.append(Math.cos(skewY), Math.sin(skewY), -Math.sin(skewX), Math.cos(skewX), x, y);\n\t\t\tthis.append(cos*scaleX, sin*scaleX, -sin*scaleY, cos*scaleY, 0, 0);\n\t\t} else {\n\t\t\tthis.append(cos*scaleX, sin*scaleX, -sin*scaleY, cos*scaleY, x, y);\n\t\t}\n\t\t\n\t\tif (regX || regY) {\n\t\t\t// append the registration offset:\n\t\t\tthis.tx -= regX*this.a+regY*this.c; \n\t\t\tthis.ty -= regX*this.b+regY*this.d;\n\t\t}\n\t\treturn this;\n\t};\n\n\t/**\n\t * Generates matrix properties from the specified display object transform properties, and prepends them to this matrix.\n\t * For example, you could calculate the combined transformation for a child object using:\n\t * \n\t * \tvar o = myDisplayObject;\n\t * \tvar mtx = new createjs.Matrix2D();\n\t * \tdo {\n\t * \t\t// prepend each parent's transformation in turn:\n\t * \t\tmtx.prependTransform(o.x, o.y, o.scaleX, o.scaleY, o.rotation, o.skewX, o.skewY, o.regX, o.regY);\n\t * \t} while (o = o.parent);\n\t * \t\n\t * \tNote that the above example would not account for {{#crossLink \"DisplayObject/transformMatrix:property\"}}{{/crossLink}}\n\t * \tvalues. See {{#crossLink \"Matrix2D/prependMatrix\"}}{{/crossLink}} for an example that does.\n\t * @method prependTransform\n\t * @param {Number} x\n\t * @param {Number} y\n\t * @param {Number} scaleX\n\t * @param {Number} scaleY\n\t * @param {Number} rotation\n\t * @param {Number} skewX\n\t * @param {Number} skewY\n\t * @param {Number} regX Optional.\n\t * @param {Number} regY Optional.\n\t * @return {Matrix2D} This matrix. Useful for chaining method calls.\n\t **/\n\tp.prependTransform = function(x, y, scaleX, scaleY, rotation, skewX, skewY, regX, regY) {\n\t\tif (rotation%360) {\n\t\t\tvar r = rotation*Matrix2D.DEG_TO_RAD;\n\t\t\tvar cos = Math.cos(r);\n\t\t\tvar sin = Math.sin(r);\n\t\t} else {\n\t\t\tcos = 1;\n\t\t\tsin = 0;\n\t\t}\n\n\t\tif (regX || regY) {\n\t\t\t// prepend the registration offset:\n\t\t\tthis.tx -= regX; this.ty -= regY;\n\t\t}\n\t\tif (skewX || skewY) {\n\t\t\t// TODO: can this be combined into a single prepend operation?\n\t\t\tskewX *= Matrix2D.DEG_TO_RAD;\n\t\t\tskewY *= Matrix2D.DEG_TO_RAD;\n\t\t\tthis.prepend(cos*scaleX, sin*scaleX, -sin*scaleY, cos*scaleY, 0, 0);\n\t\t\tthis.prepend(Math.cos(skewY), Math.sin(skewY), -Math.sin(skewX), Math.cos(skewX), x, y);\n\t\t} else {\n\t\t\tthis.prepend(cos*scaleX, sin*scaleX, -sin*scaleY, cos*scaleY, x, y);\n\t\t}\n\t\treturn this;\n\t};\n\n\t/**\n\t * Applies a clockwise rotation transformation to the matrix.\n\t * @method rotate\n\t * @param {Number} angle The angle to rotate by, in degrees. To use a value in radians, multiply it by `180/Math.PI`.\n\t * @return {Matrix2D} This matrix. Useful for chaining method calls.\n\t **/\n\tp.rotate = function(angle) {\n\t\tangle = angle*Matrix2D.DEG_TO_RAD;\n\t\tvar cos = Math.cos(angle);\n\t\tvar sin = Math.sin(angle);\n\n\t\tvar a1 = this.a;\n\t\tvar b1 = this.b;\n\n\t\tthis.a = a1*cos+this.c*sin;\n\t\tthis.b = b1*cos+this.d*sin;\n\t\tthis.c = -a1*sin+this.c*cos;\n\t\tthis.d = -b1*sin+this.d*cos;\n\t\treturn this;\n\t};\n\n\t/**\n\t * Applies a skew transformation to the matrix.\n\t * @method skew\n\t * @param {Number} skewX The amount to skew horizontally in degrees. To use a value in radians, multiply it by `180/Math.PI`.\n\t * @param {Number} skewY The amount to skew vertically in degrees.\n\t * @return {Matrix2D} This matrix. Useful for chaining method calls.\n\t*/\n\tp.skew = function(skewX, skewY) {\n\t\tskewX = skewX*Matrix2D.DEG_TO_RAD;\n\t\tskewY = skewY*Matrix2D.DEG_TO_RAD;\n\t\tthis.append(Math.cos(skewY), Math.sin(skewY), -Math.sin(skewX), Math.cos(skewX), 0, 0);\n\t\treturn this;\n\t};\n\n\t/**\n\t * Applies a scale transformation to the matrix.\n\t * @method scale\n\t * @param {Number} x The amount to scale horizontally. E.G. a value of 2 will double the size in the X direction, and 0.5 will halve it.\n\t * @param {Number} y The amount to scale vertically.\n\t * @return {Matrix2D} This matrix. Useful for chaining method calls.\n\t **/\n\tp.scale = function(x, y) {\n\t\tthis.a *= x;\n\t\tthis.b *= x;\n\t\tthis.c *= y;\n\t\tthis.d *= y;\n\t\t//this.tx *= x;\n\t\t//this.ty *= y;\n\t\treturn this;\n\t};\n\n\t/**\n\t * Translates the matrix on the x and y axes.\n\t * @method translate\n\t * @param {Number} x\n\t * @param {Number} y\n\t * @return {Matrix2D} This matrix. Useful for chaining method calls.\n\t **/\n\tp.translate = function(x, y) {\n\t\tthis.tx += this.a*x + this.c*y;\n\t\tthis.ty += this.b*x + this.d*y;\n\t\treturn this;\n\t};\n\n\t/**\n\t * Sets the properties of the matrix to those of an identity matrix (one that applies a null transformation).\n\t * @method identity\n\t * @return {Matrix2D} This matrix. Useful for chaining method calls.\n\t **/\n\tp.identity = function() {\n\t\tthis.a = this.d = 1;\n\t\tthis.b = this.c = this.tx = this.ty = 0;\n\t\treturn this;\n\t};\n\n\t/**\n\t * Inverts the matrix, causing it to perform the opposite transformation.\n\t * @method invert\n\t * @return {Matrix2D} This matrix. Useful for chaining method calls.\n\t **/\n\tp.invert = function() {\n\t\tvar a1 = this.a;\n\t\tvar b1 = this.b;\n\t\tvar c1 = this.c;\n\t\tvar d1 = this.d;\n\t\tvar tx1 = this.tx;\n\t\tvar n = a1*d1-b1*c1;\n\n\t\tthis.a = d1/n;\n\t\tthis.b = -b1/n;\n\t\tthis.c = -c1/n;\n\t\tthis.d = a1/n;\n\t\tthis.tx = (c1*this.ty-d1*tx1)/n;\n\t\tthis.ty = -(a1*this.ty-b1*tx1)/n;\n\t\treturn this;\n\t};\n\n\t/**\n\t * Returns true if the matrix is an identity matrix.\n\t * @method isIdentity\n\t * @return {Boolean}\n\t **/\n\tp.isIdentity = function() {\n\t\treturn this.tx === 0 && this.ty === 0 && this.a === 1 && this.b === 0 && this.c === 0 && this.d === 1;\n\t};\n\t\n\t/**\n\t * Returns true if this matrix is equal to the specified matrix (all property values are equal).\n\t * @method equals\n\t * @param {Matrix2D} matrix The matrix to compare.\n\t * @return {Boolean}\n\t **/\n\tp.equals = function(matrix) {\n\t\treturn this.tx === matrix.tx && this.ty === matrix.ty && this.a === matrix.a && this.b === matrix.b && this.c === matrix.c && this.d === matrix.d;\n\t};\n\n\t/**\n\t * Transforms a point according to this matrix.\n\t * @method transformPoint\n\t * @param {Number} x The x component of the point to transform.\n\t * @param {Number} y The y component of the point to transform.\n\t * @param {Point | Object} [pt] An object to copy the result into. If omitted a generic object with x/y properties will be returned.\n\t * @return {Point} This matrix. Useful for chaining method calls.\n\t **/\n\tp.transformPoint = function(x, y, pt) {\n\t\tpt = pt||{};\n\t\tpt.x = x*this.a+y*this.c+this.tx;\n\t\tpt.y = x*this.b+y*this.d+this.ty;\n\t\treturn pt;\n\t};\n\n\t/**\n\t * Decomposes the matrix into transform properties (x, y, scaleX, scaleY, and rotation). Note that these values\n\t * may not match the transform properties you used to generate the matrix, though they will produce the same visual\n\t * results.\n\t * @method decompose\n\t * @param {Object} target The object to apply the transform properties to. If null, then a new object will be returned.\n\t * @return {Object} The target, or a new generic object with the transform properties applied.\n\t*/\n\tp.decompose = function(target) {\n\t\t// TODO: it would be nice to be able to solve for whether the matrix can be decomposed into only scale/rotation even when scale is negative\n\t\tif (target == null) { target = {}; }\n\t\ttarget.x = this.tx;\n\t\ttarget.y = this.ty;\n\t\ttarget.scaleX = Math.sqrt(this.a * this.a + this.b * this.b);\n\t\ttarget.scaleY = Math.sqrt(this.c * this.c + this.d * this.d);\n\n\t\tvar skewX = Math.atan2(-this.c, this.d);\n\t\tvar skewY = Math.atan2(this.b, this.a);\n\n\t\tvar delta = Math.abs(1-skewX/skewY);\n\t\tif (delta < 0.00001) { // effectively identical, can use rotation:\n\t\t\ttarget.rotation = skewY/Matrix2D.DEG_TO_RAD;\n\t\t\tif (this.a < 0 && this.d >= 0) {\n\t\t\t\ttarget.rotation += (target.rotation <= 0) ? 180 : -180;\n\t\t\t}\n\t\t\ttarget.skewX = target.skewY = 0;\n\t\t} else {\n\t\t\ttarget.skewX = skewX/Matrix2D.DEG_TO_RAD;\n\t\t\ttarget.skewY = skewY/Matrix2D.DEG_TO_RAD;\n\t\t}\n\t\treturn target;\n\t};\n\t\n\t/**\n\t * Copies all properties from the specified matrix to this matrix.\n\t * @method copy\n\t * @param {Matrix2D} matrix The matrix to copy properties from.\n\t * @return {Matrix2D} This matrix. Useful for chaining method calls.\n\t*/\n\tp.copy = function(matrix) {\n\t\treturn this.setValues(matrix.a, matrix.b, matrix.c, matrix.d, matrix.tx, matrix.ty);\n\t};\n\n\t/**\n\t * Returns a clone of the Matrix2D instance.\n\t * @method clone\n\t * @return {Matrix2D} a clone of the Matrix2D instance.\n\t **/\n\tp.clone = function() {\n\t\treturn new Matrix2D(this.a, this.b, this.c, this.d, this.tx, this.ty);\n\t};\n\n\t/**\n\t * Returns a string representation of this object.\n\t * @method toString\n\t * @return {String} a string representation of the instance.\n\t **/\n\tp.toString = function() {\n\t\treturn \"[Matrix2D (a=\"+this.a+\" b=\"+this.b+\" c=\"+this.c+\" d=\"+this.d+\" tx=\"+this.tx+\" ty=\"+this.ty+\")]\";\n\t};\n\n\t// this has to be populated after the class is defined:\n\tMatrix2D.identity = new Matrix2D();\n\n\n\tcreatejs.Matrix2D = Matrix2D;\n}());\n\n//##############################################################################\n// DisplayProps.js\n//##############################################################################\n\n(function() {\n\t\"use strict\";\n\n\t/**\n\t * Used for calculating and encapsulating display related properties.\n\t * @class DisplayProps\n\t * @param {Number} [visible=true] Visible value.\n\t * @param {Number} [alpha=1] Alpha value.\n\t * @param {Number} [shadow=null] A Shadow instance or null.\n\t * @param {Number} [compositeOperation=null] A compositeOperation value or null.\n\t * @param {Number} [matrix] A transformation matrix. Defaults to a new identity matrix.\n\t * @constructor\n\t **/\n\tfunction DisplayProps(visible, alpha, shadow, compositeOperation, matrix) {\n\t\tthis.setValues(visible, alpha, shadow, compositeOperation, matrix);\n\t\t\n\t// public properties:\n\t\t// assigned in the setValues method.\n\t\t/**\n\t\t * Property representing the alpha that will be applied to a display object.\n\t\t * @property alpha\n\t\t * @type Number\n\t\t **/\n\t\n\t\t/**\n\t\t * Property representing the shadow that will be applied to a display object.\n\t\t * @property shadow\n\t\t * @type Shadow\n\t\t **/\n\t\n\t\t/**\n\t\t * Property representing the compositeOperation that will be applied to a display object.\n\t\t * You can find a list of valid composite operations at:\n\t\t * https://developer.mozilla.org/en/Canvas_tutorial/Compositing\n\t\t * @property compositeOperation\n\t\t * @type String\n\t\t **/\n\t\t\n\t\t/**\n\t\t * Property representing the value for visible that will be applied to a display object.\n\t\t * @property visible\n\t\t * @type Boolean\n\t\t **/\n\t\t\n\t\t/**\n\t\t * The transformation matrix that will be applied to a display object.\n\t\t * @property matrix\n\t\t * @type Matrix2D\n\t\t **/\n\t}\n\tvar p = DisplayProps.prototype;\n\n// initialization:\n\t/**\n\t * Reinitializes the instance with the specified values.\n\t * @method setValues\n\t * @param {Number} [visible=true] Visible value.\n\t * @param {Number} [alpha=1] Alpha value.\n\t * @param {Number} [shadow=null] A Shadow instance or null.\n\t * @param {Number} [compositeOperation=null] A compositeOperation value or null.\n\t * @param {Number} [matrix] A transformation matrix. Defaults to an identity matrix.\n\t * @return {DisplayProps} This instance. Useful for chaining method calls.\n\t * @chainable\n\t*/\n\tp.setValues = function (visible, alpha, shadow, compositeOperation, matrix) {\n\t\tthis.visible = visible == null ? true : !!visible;\n\t\tthis.alpha = alpha == null ? 1 : alpha;\n\t\tthis.shadow = shadow;\n\t\tthis.compositeOperation = compositeOperation;\n\t\tthis.matrix = matrix || (this.matrix&&this.matrix.identity()) || new createjs.Matrix2D();\n\t\treturn this;\n\t};\n\n// public methods:\n\t/**\n\t * Appends the specified display properties. This is generally used to apply a child's properties its parent's.\n\t * @method append\n\t * @param {Boolean} visible desired visible value\n\t * @param {Number} alpha desired alpha value\n\t * @param {Shadow} shadow desired shadow value\n\t * @param {String} compositeOperation desired composite operation value\n\t * @param {Matrix2D} [matrix] a Matrix2D instance\n\t * @return {DisplayProps} This instance. Useful for chaining method calls.\n\t * @chainable\n\t*/\n\tp.append = function(visible, alpha, shadow, compositeOperation, matrix) {\n\t\tthis.alpha *= alpha;\n\t\tthis.shadow = shadow || this.shadow;\n\t\tthis.compositeOperation = compositeOperation || this.compositeOperation;\n\t\tthis.visible = this.visible && visible;\n\t\tmatrix&&this.matrix.appendMatrix(matrix);\n\t\treturn this;\n\t};\n\t\n\t/**\n\t * Prepends the specified display properties. This is generally used to apply a parent's properties to a child's.\n\t * For example, to get the combined display properties that would be applied to a child, you could use:\n\t * \n\t * \tvar o = myDisplayObject;\n\t * \tvar props = new createjs.DisplayProps();\n\t * \tdo {\n\t * \t\t// prepend each parent's props in turn:\n\t * \t\tprops.prepend(o.visible, o.alpha, o.shadow, o.compositeOperation, o.getMatrix());\n\t * \t} while (o = o.parent);\n\t * \t\n\t * @method prepend\n\t * @param {Boolean} visible desired visible value\n\t * @param {Number} alpha desired alpha value\n\t * @param {Shadow} shadow desired shadow value\n\t * @param {String} compositeOperation desired composite operation value\n\t * @param {Matrix2D} [matrix] a Matrix2D instance\n\t * @return {DisplayProps} This instance. Useful for chaining method calls.\n\t * @chainable\n\t*/\n\tp.prepend = function(visible, alpha, shadow, compositeOperation, matrix) {\n\t\tthis.alpha *= alpha;\n\t\tthis.shadow = this.shadow || shadow;\n\t\tthis.compositeOperation = this.compositeOperation || compositeOperation;\n\t\tthis.visible = this.visible && visible;\n\t\tmatrix&&this.matrix.prependMatrix(matrix);\n\t\treturn this;\n\t};\n\t\n\t/**\n\t * Resets this instance and its matrix to default values.\n\t * @method identity\n\t * @return {DisplayProps} This instance. Useful for chaining method calls.\n\t * @chainable\n\t*/\n\tp.identity = function() {\n\t\tthis.visible = true;\n\t\tthis.alpha = 1;\n\t\tthis.shadow = this.compositeOperation = null;\n\t\tthis.matrix.identity();\n\t\treturn this;\n\t};\n\t\n\t/**\n\t * Returns a clone of the DisplayProps instance. Clones the associated matrix.\n\t * @method clone\n\t * @return {DisplayProps} a clone of the DisplayProps instance.\n\t **/\n\tp.clone = function() {\n\t\treturn new DisplayProps(this.alpha, this.shadow, this.compositeOperation, this.visible, this.matrix.clone());\n\t};\n\n// private methods:\n\n\tcreatejs.DisplayProps = DisplayProps;\n})();\n\n//##############################################################################\n// Point.js\n//##############################################################################\n\n(function() {\n\t\"use strict\";\n\n\n// constructor:\n\t/**\n\t * Represents a point on a 2 dimensional x / y coordinate system.\n\t *\n\t * shadow property.\n\t *\n\t * | Tiny | Method | Tiny | Method |
| mt | {{#crossLink \"Graphics/moveTo\"}}{{/crossLink}} | \n\t *lt | {{#crossLink \"Graphics/lineTo\"}}{{/crossLink}} |
| a/at | {{#crossLink \"Graphics/arc\"}}{{/crossLink}} / {{#crossLink \"Graphics/arcTo\"}}{{/crossLink}} | \n\t *bt | {{#crossLink \"Graphics/bezierCurveTo\"}}{{/crossLink}} |
| qt | {{#crossLink \"Graphics/quadraticCurveTo\"}}{{/crossLink}} (also curveTo) | \n\t *r | {{#crossLink \"Graphics/rect\"}}{{/crossLink}} |
| cp | {{#crossLink \"Graphics/closePath\"}}{{/crossLink}} | \n\t *c | {{#crossLink \"Graphics/clear\"}}{{/crossLink}} |
| f | {{#crossLink \"Graphics/beginFill\"}}{{/crossLink}} | \n\t *lf | {{#crossLink \"Graphics/beginLinearGradientFill\"}}{{/crossLink}} |
| rf | {{#crossLink \"Graphics/beginRadialGradientFill\"}}{{/crossLink}} | \n\t *bf | {{#crossLink \"Graphics/beginBitmapFill\"}}{{/crossLink}} |
| ef | {{#crossLink \"Graphics/endFill\"}}{{/crossLink}} | \n\t *ss / sd | {{#crossLink \"Graphics/setStrokeStyle\"}}{{/crossLink}} / {{#crossLink \"Graphics/setStrokeDash\"}}{{/crossLink}} |
| s | {{#crossLink \"Graphics/beginStroke\"}}{{/crossLink}} | \n\t *ls | {{#crossLink \"Graphics/beginLinearGradientStroke\"}}{{/crossLink}} |
| rs | {{#crossLink \"Graphics/beginRadialGradientStroke\"}}{{/crossLink}} | \n\t *bs | {{#crossLink \"Graphics/beginBitmapStroke\"}}{{/crossLink}} |
| es | {{#crossLink \"Graphics/endStroke\"}}{{/crossLink}} | \n\t *dr | {{#crossLink \"Graphics/drawRect\"}}{{/crossLink}} |
| rr | {{#crossLink \"Graphics/drawRoundRect\"}}{{/crossLink}} | \n\t *rc | {{#crossLink \"Graphics/drawRoundRectComplex\"}}{{/crossLink}} |
| dc | {{#crossLink \"Graphics/drawCircle\"}}{{/crossLink}} | \n\t *de | {{#crossLink \"Graphics/drawEllipse\"}}{{/crossLink}} |
| dp | {{#crossLink \"Graphics/drawPolyStar\"}}{{/crossLink}} | \n\t *p | {{#crossLink \"Graphics/decodePath\"}}{{/crossLink}} |
beginFill(null).\n\t * A tiny API method \"ef\" also exists.\n\t * @method endFill\n\t * @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)\n\t * @chainable\n\t **/\n\tp.endFill = function() {\n\t\treturn this.beginFill();\n\t};\n\n\t/**\n\t * Sets the stroke style. Like all drawing methods, this can be chained, so you can define\n\t * the stroke style and color in a single line of code like so:\n\t *\n\t * \tmyGraphics.setStrokeStyle(8,\"round\").beginStroke(\"#F00\");\n\t *\n\t * A tiny API method \"ss\" also exists.\n\t * @method setStrokeStyle\n\t * @param {Number} thickness The width of the stroke.\n\t * @param {String | Number} [caps=0] Indicates the type of caps to use at the end of lines. One of butt,\n\t * round, or square. Defaults to \"butt\". Also accepts the values 0 (butt), 1 (round), and 2 (square) for use with\n\t * the tiny API.\n\t * @param {String | Number} [joints=0] Specifies the type of joints that should be used where two lines meet.\n\t * One of bevel, round, or miter. Defaults to \"miter\". Also accepts the values 0 (miter), 1 (round), and 2 (bevel)\n\t * for use with the tiny API.\n\t * @param {Number} [miterLimit=10] If joints is set to \"miter\", then you can specify a miter limit ratio which\n\t * controls at what point a mitered joint will be clipped.\n\t * @param {Boolean} [ignoreScale=false] If true, the stroke will be drawn at the specified thickness regardless\n\t * of active transformations.\n\t * @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)\n\t * @chainable\n\t **/\n\tp.setStrokeStyle = function(thickness, caps, joints, miterLimit, ignoreScale) {\n\t\tthis._updateInstructions(true);\n\t\tthis._strokeStyle = this.command = new G.StrokeStyle(thickness, caps, joints, miterLimit, ignoreScale);\n\n\t\t// ignoreScale lives on Stroke, not StrokeStyle, so we do a little trickery:\n\t\tif (this._stroke) { this._stroke.ignoreScale = ignoreScale; }\n\t\tthis._strokeIgnoreScale = ignoreScale;\n\t\treturn this;\n\t};\n\t\n\t/**\n\t * Sets or clears the stroke dash pattern.\n\t *\n\t * \tmyGraphics.setStrokeDash([20, 10], 0);\n\t *\n\t * A tiny API method `sd` also exists.\n\t * @method setStrokeDash\n\t * @param {Array} [segments] An array specifying the dash pattern, alternating between line and gap.\n\t * For example, `[20,10]` would create a pattern of 20 pixel lines with 10 pixel gaps between them.\n\t * Passing null or an empty array will clear the existing stroke dash.\n\t * @param {Number} [offset=0] The offset of the dash pattern. For example, you could increment this value to create a \"marching ants\" effect.\n\t * @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)\n\t * @chainable\n\t **/\n\tp.setStrokeDash = function(segments, offset) {\n\t\tthis._updateInstructions(true);\n\t\tthis._strokeDash = this.command = new G.StrokeDash(segments, offset);\n\t\treturn this;\n\t};\n\n\t/**\n\t * Begins a stroke with the specified color. This ends the current sub-path. A tiny API method \"s\" also exists.\n\t * @method beginStroke\n\t * @param {String} color A CSS compatible color value (ex. \"#FF0000\", \"red\", or \"rgba(255,0,0,0.5)\"). Setting to\n\t * null will result in no stroke.\n\t * @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)\n\t * @chainable\n\t **/\n\tp.beginStroke = function(color) {\n\t\treturn this._setStroke(color ? new G.Stroke(color) : null);\n\t};\n\n\t/**\n\t * Begins a linear gradient stroke defined by the line (x0, y0) to (x1, y1). This ends the current sub-path. For\n\t * example, the following code defines a black to white vertical gradient ranging from 20px to 120px, and draws a\n\t * square to display it:\n\t *\n\t * myGraphics.setStrokeStyle(10).\n\t * beginLinearGradientStroke([\"#000\",\"#FFF\"], [0, 1], 0, 20, 0, 120).drawRect(20, 20, 120, 120);\n\t *\n\t * A tiny API method \"ls\" also exists.\n\t * @method beginLinearGradientStroke\n\t * @param {Array} colors An array of CSS compatible color values. For example, [\"#F00\",\"#00F\"] would define\n\t * a gradient drawing from red to blue.\n\t * @param {Array} ratios An array of gradient positions which correspond to the colors. For example, [0.1,\n\t * 0.9] would draw the first color to 10% then interpolating to the second color at 90%.\n\t * @param {Number} x0 The position of the first point defining the line that defines the gradient direction and size.\n\t * @param {Number} y0 The position of the first point defining the line that defines the gradient direction and size.\n\t * @param {Number} x1 The position of the second point defining the line that defines the gradient direction and size.\n\t * @param {Number} y1 The position of the second point defining the line that defines the gradient direction and size.\n\t * @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)\n\t * @chainable\n\t **/\n\tp.beginLinearGradientStroke = function(colors, ratios, x0, y0, x1, y1) {\n\t\treturn this._setStroke(new G.Stroke().linearGradient(colors, ratios, x0, y0, x1, y1));\n\t};\n\n\t/**\n\t * Begins a radial gradient stroke. This ends the current sub-path. For example, the following code defines a red to\n\t * blue radial gradient centered at (100, 100), with a radius of 50, and draws a rectangle to display it:\n\t *\n\t * myGraphics.setStrokeStyle(10)\n\t * .beginRadialGradientStroke([\"#F00\",\"#00F\"], [0, 1], 100, 100, 0, 100, 100, 50)\n\t * .drawRect(50, 90, 150, 110);\n\t *\n\t * A tiny API method \"rs\" also exists.\n\t * @method beginRadialGradientStroke\n\t * @param {Array} colors An array of CSS compatible color values. For example, [\"#F00\",\"#00F\"] would define\n\t * a gradient drawing from red to blue.\n\t * @param {Array} ratios An array of gradient positions which correspond to the colors. For example, [0.1,\n\t * 0.9] would draw the first color to 10% then interpolating to the second color at 90%, then draw the second color\n\t * to 100%.\n\t * @param {Number} x0 Center position of the inner circle that defines the gradient.\n\t * @param {Number} y0 Center position of the inner circle that defines the gradient.\n\t * @param {Number} r0 Radius of the inner circle that defines the gradient.\n\t * @param {Number} x1 Center position of the outer circle that defines the gradient.\n\t * @param {Number} y1 Center position of the outer circle that defines the gradient.\n\t * @param {Number} r1 Radius of the outer circle that defines the gradient.\n\t * @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)\n\t * @chainable\n\t **/\n\tp.beginRadialGradientStroke = function(colors, ratios, x0, y0, r0, x1, y1, r1) {\n\t\treturn this._setStroke(new G.Stroke().radialGradient(colors, ratios, x0, y0, r0, x1, y1, r1));\n\t};\n\n\t/**\n\t * Begins a pattern fill using the specified image. This ends the current sub-path. Note that unlike bitmap fills,\n\t * strokes do not currently support a matrix parameter due to limitations in the canvas API. A tiny API method \"bs\"\n\t * also exists.\n\t * @method beginBitmapStroke\n\t * @param {HTMLImageElement | HTMLCanvasElement | HTMLVideoElement} image The Image, Canvas, or Video object to use\n\t * as the pattern. Must be loaded prior to creating a bitmap fill, or the fill will be empty.\n\t * @param {String} [repetition=repeat] Optional. Indicates whether to repeat the image in the fill area. One of\n\t * \"repeat\", \"repeat-x\", \"repeat-y\", or \"no-repeat\". Defaults to \"repeat\".\n\t * @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)\n\t * @chainable\n\t **/\n\tp.beginBitmapStroke = function(image, repetition) {\n\t\t// NOTE: matrix is not supported for stroke because transforms on strokes also affect the drawn stroke width.\n\t\treturn this._setStroke(new G.Stroke().bitmap(image, repetition));\n\t};\n\n\t/**\n\t * Ends the current sub-path, and begins a new one with no stroke. Functionally identical to beginStroke(null).\n\t * A tiny API method \"es\" also exists.\n\t * @method endStroke\n\t * @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)\n\t * @chainable\n\t **/\n\tp.endStroke = function() {\n\t\treturn this.beginStroke();\n\t};\n\n\t/**\n\t * Maps the familiar ActionScript curveTo() method to the functionally similar {{#crossLink \"Graphics/quadraticCurveTo\"}}{{/crossLink}}\n\t * method.\n\t * @method quadraticCurveTo\n\t * @param {Number} cpx\n\t * @param {Number} cpy\n\t * @param {Number} x\n\t * @param {Number} y\n\t * @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)\n\t * @chainable\n\t **/\n\tp.curveTo = p.quadraticCurveTo;\n\n\t/**\n\t *\n\t * Maps the familiar ActionScript drawRect() method to the functionally similar {{#crossLink \"Graphics/rect\"}}{{/crossLink}}\n\t * method.\n\t * @method drawRect\n\t * @param {Number} x\n\t * @param {Number} y\n\t * @param {Number} w Width of the rectangle\n\t * @param {Number} h Height of the rectangle\n\t * @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)\n\t * @chainable\n\t **/\n\tp.drawRect = p.rect;\n\n\t/**\n\t * Draws a rounded rectangle with all corners with the specified radius.\n\t * @method drawRoundRect\n\t * @param {Number} x\n\t * @param {Number} y\n\t * @param {Number} w\n\t * @param {Number} h\n\t * @param {Number} radius Corner radius.\n\t * @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)\n\t * @chainable\n\t **/\n\tp.drawRoundRect = function(x, y, w, h, radius) {\n\t\treturn this.drawRoundRectComplex(x, y, w, h, radius, radius, radius, radius);\n\t};\n\n\t/**\n\t * Draws a rounded rectangle with different corner radii. Supports positive and negative corner radii. A tiny API\n\t * method \"rc\" also exists.\n\t * @method drawRoundRectComplex\n\t * @param {Number} x The horizontal coordinate to draw the round rect.\n\t * @param {Number} y The vertical coordinate to draw the round rect.\n\t * @param {Number} w The width of the round rect.\n\t * @param {Number} h The height of the round rect.\n\t * @param {Number} radiusTL Top left corner radius.\n\t * @param {Number} radiusTR Top right corner radius.\n\t * @param {Number} radiusBR Bottom right corner radius.\n\t * @param {Number} radiusBL Bottom left corner radius.\n\t * @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)\n\t * @chainable\n\t **/\n\tp.drawRoundRectComplex = function(x, y, w, h, radiusTL, radiusTR, radiusBR, radiusBL) {\n\t\treturn this.append(new G.RoundRect(x, y, w, h, radiusTL, radiusTR, radiusBR, radiusBL));\n\t};\n\n\t/**\n\t * Draws a circle with the specified radius at (x, y).\n\t *\n\t * var g = new createjs.Graphics();\n\t *\t g.setStrokeStyle(1);\n\t *\t g.beginStroke(createjs.Graphics.getRGB(0,0,0));\n\t *\t g.beginFill(createjs.Graphics.getRGB(255,0,0));\n\t *\t g.drawCircle(0,0,3);\n\t *\n\t *\t var s = new createjs.Shape(g);\n\t *\t\ts.x = 100;\n\t *\t\ts.y = 100;\n\t *\n\t *\t stage.addChild(s);\n\t *\t stage.update();\n\t *\n\t * A tiny API method \"dc\" also exists.\n\t * @method drawCircle\n\t * @param {Number} x x coordinate center point of circle.\n\t * @param {Number} y y coordinate center point of circle.\n\t * @param {Number} radius Radius of circle.\n\t * @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)\n\t * @chainable\n\t **/\n\tp.drawCircle = function(x, y, radius) {\n\t\treturn this.append(new G.Circle(x, y, radius));\n\t};\n\n\t/**\n\t * Draws an ellipse (oval) with a specified width (w) and height (h). Similar to {{#crossLink \"Graphics/drawCircle\"}}{{/crossLink}},\n\t * except the width and height can be different. A tiny API method \"de\" also exists.\n\t * @method drawEllipse\n\t * @param {Number} x The left coordinate point of the ellipse. Note that this is different from {{#crossLink \"Graphics/drawCircle\"}}{{/crossLink}}\n\t * which draws from center.\n\t * @param {Number} y The top coordinate point of the ellipse. Note that this is different from {{#crossLink \"Graphics/drawCircle\"}}{{/crossLink}}\n\t * which draws from the center.\n\t * @param {Number} w The height (horizontal diameter) of the ellipse. The horizontal radius will be half of this\n\t * number.\n\t * @param {Number} h The width (vertical diameter) of the ellipse. The vertical radius will be half of this number.\n\t * @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)\n\t * @chainable\n\t **/\n\tp.drawEllipse = function(x, y, w, h) {\n\t\treturn this.append(new G.Ellipse(x, y, w, h));\n\t};\n\n\t/**\n\t * Draws a star if pointSize is greater than 0, or a regular polygon if pointSize is 0 with the specified number of\n\t * points. For example, the following code will draw a familiar 5 pointed star shape centered at 100, 100 and with a\n\t * radius of 50:\n\t *\n\t * myGraphics.beginFill(\"#FF0\").drawPolyStar(100, 100, 50, 5, 0.6, -90);\n\t * // Note: -90 makes the first point vertical\n\t *\n\t * A tiny API method \"dp\" also exists.\n\t *\n\t * @method drawPolyStar\n\t * @param {Number} x Position of the center of the shape.\n\t * @param {Number} y Position of the center of the shape.\n\t * @param {Number} radius The outer radius of the shape.\n\t * @param {Number} sides The number of points on the star or sides on the polygon.\n\t * @param {Number} pointSize The depth or \"pointy-ness\" of the star points. A pointSize of 0 will draw a regular\n\t * polygon (no points), a pointSize of 1 will draw nothing because the points are infinitely pointy.\n\t * @param {Number} angle The angle of the first point / corner. For example a value of 0 will draw the first point\n\t * directly to the right of the center.\n\t * @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)\n\t * @chainable\n\t **/\n\tp.drawPolyStar = function(x, y, radius, sides, pointSize, angle) {\n\t\treturn this.append(new G.PolyStar(x, y, radius, sides, pointSize, angle));\n\t};\n\n\t// TODO: deprecated.\n\t/**\n\t * Removed in favour of using custom command objects with {{#crossLink \"Graphics/append\"}}{{/crossLink}}.\n\t * @method inject\n\t * @deprecated\n\t **/\n\n\t/**\n\t * Appends a graphics command object to the graphics queue. Command objects expose an \"exec\" method\n\t * that accepts two parameters: the Context2D to operate on, and an arbitrary data object passed into\n\t * {{#crossLink \"Graphics/draw\"}}{{/crossLink}}. The latter will usually be the Shape instance that called draw.\n\t *\n\t * This method is used internally by Graphics methods, such as drawCircle, but can also be used directly to insert\n\t * built-in or custom graphics commands. For example:\n\t *\n\t * \t\t// attach data to our shape, so we can access it during the draw:\n\t * \t\tmyShape.color = \"red\";\n\t *\n\t * \t\t// append a Circle command object:\n\t * \t\tmyShape.graphics.append(new createjs.Graphics.Circle(50, 50, 30));\n\t *\n\t * \t\t// append a custom command object with an exec method that sets the fill style\n\t * \t\t// based on the shape's data, and then fills the circle.\n\t * \t\tmyShape.graphics.append({exec:function(ctx, shape) {\n\t * \t\t\tctx.fillStyle = shape.color;\n\t * \t\t\tctx.fill();\n\t * \t\t}});\n\t *\n\t * @method append\n\t * @param {Object} command A graphics command object exposing an \"exec\" method.\n\t * @param {boolean} clean The clean param is primarily for internal use. A value of true indicates that a command does not generate a path that should be stroked or filled.\n\t * @return {Graphics} The Graphics instance the method is called on (useful for chaining calls.)\n\t * @chainable\n\t **/\n\tp.append = function(command, clean) {\n\t\tthis._activeInstructions.push(command);\n\t\tthis.command = command;\n\t\tif (!clean) { this._dirty = true; }\n\t\treturn this;\n\t};\n\n\t/**\n\t * Decodes a compact encoded path string into a series of draw instructions.\n\t * This format is not intended to be human readable, and is meant for use by authoring tools.\n\t * The format uses a base64 character set, with each character representing 6 bits, to define a series of draw\n\t * commands.\n\t *\n\t * Each command is comprised of a single \"header\" character followed by a variable number of alternating x and y\n\t * position values. Reading the header bits from left to right (most to least significant): bits 1 to 3 specify the\n\t * type of operation (0-moveTo, 1-lineTo, 2-quadraticCurveTo, 3-bezierCurveTo, 4-closePath, 5-7 unused). Bit 4\n\t * indicates whether position values use 12 bits (2 characters) or 18 bits (3 characters), with a one indicating the\n\t * latter. Bits 5 and 6 are currently unused.\n\t *\n\t * Following the header is a series of 0 (closePath), 2 (moveTo, lineTo), 4 (quadraticCurveTo), or 6 (bezierCurveTo)\n\t * parameters. These parameters are alternating x/y positions represented by 2 or 3 characters (as indicated by the\n\t * 4th bit in the command char). These characters consist of a 1 bit sign (1 is negative, 0 is positive), followed\n\t * by an 11 (2 char) or 17 (3 char) bit integer value. All position values are in tenths of a pixel. Except in the\n\t * case of move operations which are absolute, this value is a delta from the previous x or y position (as\n\t * appropriate).\n\t *\n\t * For example, the string \"A3cAAMAu4AAA\" represents a line starting at -150,0 and ending at 150,0.\n\t * true if the draw was handled (useful for overriding functionality).\n\t *\n\t * NOTE: This method is mainly for internal use, though it may be useful for advanced uses.\n\t * @method draw\n\t * @param {CanvasRenderingContext2D} ctx The canvas 2D context object to draw into.\n\t * @param {Boolean} [ignoreCache=false] Indicates whether the draw operation should ignore any current cache. For example,\n\t * used for drawing the cache (to prevent it from simply drawing an existing cache back into itself).\n\t * @return {Boolean}\n\t **/\n\tp.draw = function(ctx, ignoreCache) {\n\t\tvar cacheCanvas = this.cacheCanvas;\n\t\tif (ignoreCache || !cacheCanvas) { return false; }\n\t\tvar scale = this._cacheScale;\n\t\tctx.drawImage(cacheCanvas, this._cacheOffsetX+this._filterOffsetX, this._cacheOffsetY+this._filterOffsetY, cacheCanvas.width/scale, cacheCanvas.height/scale);\n\t\treturn true;\n\t};\n\t\n\t/**\n\t * Applies this display object's transformation, alpha, globalCompositeOperation, clipping path (mask), and shadow\n\t * to the specified context. This is typically called prior to {{#crossLink \"DisplayObject/draw\"}}{{/crossLink}}.\n\t * @method updateContext\n\t * @param {CanvasRenderingContext2D} ctx The canvas 2D to update.\n\t **/\n\tp.updateContext = function(ctx) {\n\t\tvar o=this, mask=o.mask, mtx= o._props.matrix;\n\t\t\n\t\tif (mask && mask.graphics && !mask.graphics.isEmpty()) {\n\t\t\tmask.getMatrix(mtx);\n\t\t\tctx.transform(mtx.a, mtx.b, mtx.c, mtx.d, mtx.tx, mtx.ty);\n\t\t\t\n\t\t\tmask.graphics.drawAsPath(ctx);\n\t\t\tctx.clip();\n\t\t\t\n\t\t\tmtx.invert();\n\t\t\tctx.transform(mtx.a, mtx.b, mtx.c, mtx.d, mtx.tx, mtx.ty);\n\t\t}\n\t\t\n\t\tthis.getMatrix(mtx);\n\t\tvar tx = mtx.tx, ty = mtx.ty;\n\t\tif (DisplayObject._snapToPixelEnabled && o.snapToPixel) {\n\t\t\ttx = tx + (tx < 0 ? -0.5 : 0.5) | 0;\n\t\t\tty = ty + (ty < 0 ? -0.5 : 0.5) | 0;\n\t\t}\n\t\tctx.transform(mtx.a, mtx.b, mtx.c, mtx.d, tx, ty);\n\t\tctx.globalAlpha *= o.alpha;\n\t\tif (o.compositeOperation) { ctx.globalCompositeOperation = o.compositeOperation; }\n\t\tif (o.shadow) { this._applyShadow(ctx, o.shadow); }\n\t};\n\n\t/**\n\t * Draws the display object into a new canvas, which is then used for subsequent draws. For complex content\n\t * that does not change frequently (ex. a Container with many children that do not move, or a complex vector Shape),\n\t * this can provide for much faster rendering because the content does not need to be re-rendered each tick. The\n\t * cached display object can be moved, rotated, faded, etc freely, however if its content changes, you must\n\t * manually update the cache by calling updateCache() or cache() again. You must specify\n\t * the cache area via the x, y, w, and h parameters. This defines the rectangle that will be rendered and cached\n\t * using this display object's coordinates.\n\t *\n\t * | All | \n\t * \t\tAll display objects support setting bounds manually using setBounds(). Likewise, display objects that\n\t * \t\thave been cached using cache() will return the bounds of their cache. Manual and cache bounds will override\n\t * \t\tthe automatic calculations listed below.\n\t * \t |
| Bitmap | \n\t * \t\tReturns the width and height of the sourceRect (if specified) or image, extending from (x=0,y=0).\n\t * \t |
| Sprite | \n\t * \t\tReturns the bounds of the current frame. May have non-zero x/y if a frame registration point was specified\n\t * \t\tin the spritesheet data. See also {{#crossLink \"SpriteSheet/getFrameBounds\"}}{{/crossLink}}\n\t * \t |
| Container | \n\t * \t\tReturns the aggregate (combined) bounds of all children that return a non-null value from getBounds().\n\t * \t |
| Shape | \n\t * \t\tDoes not currently support automatic bounds calculations. Use setBounds() to manually define bounds.\n\t * \t |
| Text | \n\t * \t\tReturns approximate bounds. Horizontal values (x/width) are quite accurate, but vertical values (y/height) are\n\t * \t\tnot, especially when using textBaseline values other than \"top\".\n\t * \t |
| BitmapText | \n\t * \t\tReturns approximate bounds. Values will be more accurate if spritesheet frame registration points are close\n\t * \t\tto (x=0,y=0).\n\t * \t |
alpha properties concatenated with their parent\n * Container.\n *\n * For example, a {{#crossLink \"Shape\"}}{{/crossLink}} with x=100 and alpha=0.5, placed in a Container with x=50\n * and alpha=0.7 will be rendered to the canvas at x=150 and alpha=0.35.\n * Containers have some overhead, so you generally shouldn't create a Container to hold a single child.\n *\n * Array.sort\n\t * documentation for details.\n\t **/\n\tp.sortChildren = function(sortFunction) {\n\t\tthis.children.sort(sortFunction);\n\t};\n\n\t/**\n\t * Returns the index of the specified child in the display list, or -1 if it is not in the display list.\n\t *\n\t * getObjectsUnderPoint(), but is still potentially an expensive\n\t * operation. See {{#crossLink \"Container/getObjectsUnderPoint\"}}{{/crossLink}} for more information.\n\t * @method getObjectUnderPoint\n\t * @param {Number} x The x position in the container to test.\n\t * @param {Number} y The y position in the container to test.\n\t * @param {Number} mode The mode to use to determine which display objects to include. 0-all, 1-respect mouseEnabled/mouseChildren, 2-only mouse opaque objects.\n\t * @return {DisplayObject} The top-most display object under the specified coordinates.\n\t **/\n\tp.getObjectUnderPoint = function(x, y, mode) {\n\t\tvar pt = this.localToGlobal(x, y);\n\t\treturn this._getObjectsUnderPoint(pt.x, pt.y, null, mode>0, mode==1);\n\t};\n\t\n\t/**\n\t * Docced in superclass.\n\t */\n\tp.getBounds = function() {\n\t\treturn this._getBounds(null, true);\n\t};\n\t\n\t\n\t/**\n\t * Docced in superclass.\n\t */\n\tp.getTransformedBounds = function() {\n\t\treturn this._getBounds();\n\t};\n\n\t/**\n\t * Returns a clone of this Container. Some properties that are specific to this instance's current context are\n\t * reverted to their defaults (for example .parent).\n\t * @method clone\n\t * @param {Boolean} [recursive=false] If true, all of the descendants of this container will be cloned recursively. If false, the\n\t * properties of the container will be cloned, but the new instance will not have any children.\n\t * @return {Container} A clone of the current Container instance.\n\t **/\n\tp.clone = function(recursive) {\n\t\tvar o = this._cloneProps(new Container());\n\t\tif (recursive) { this._cloneChildren(o); }\n\t\treturn o;\n\t};\n\n\t/**\n\t * Returns a string representation of this object.\n\t * @method toString\n\t * @return {String} a string representation of the instance.\n\t **/\n\tp.toString = function() {\n\t\treturn \"[Container (name=\"+ this.name +\")]\";\n\t};\n\n\n// private methods:\n\t/**\n\t * @method _tick\n\t * @param {Object} evtObj An event object that will be dispatched to all tick listeners. This object is reused between dispatchers to reduce construction & GC costs.\n\t * @protected\n\t **/\n\tp._tick = function(evtObj) {\n\t\tif (this.tickChildren) {\n\t\t\tfor (var i=this.children.length-1; i>=0; i--) {\n\t\t\t\tvar child = this.children[i];\n\t\t\t\tif (child.tickEnabled && child._tick) { child._tick(evtObj); }\n\t\t\t}\n\t\t}\n\t\tthis.DisplayObject__tick(evtObj);\n\t};\n\t\n\t/**\n\t * Recursively clones all children of this container, and adds them to the target container.\n\t * @method cloneChildren\n\t * @protected\n\t * @param {Container} o The target container.\n\t **/\n\tp._cloneChildren = function(o) {\n\t\tif (o.children.length) { o.removeAllChildren(); }\n\t\tvar arr = o.children;\n\t\tfor (var i=0, l=this.children.length; ifalse\n\t\t * to manually control clearing (for generative art, or when pointing multiple stages at the same canvas for\n\t\t * example).\n\t\t *\n\t\t * delta and paused parameters.\n\t * @property handleEvent\n\t * @type Function\n\t **/\n\tp.handleEvent = function(evt) {\n\t\tif (evt.type == \"tick\") { this.update(evt); }\n\t};\n\n\t/**\n\t * Clears the target canvas. Useful if {{#crossLink \"Stage/autoClear:property\"}}{{/crossLink}} is set to `false`.\n\t * @method clear\n\t **/\n\tp.clear = function() {\n\t\tif (!this.canvas) { return; }\n\t\tvar ctx = this.canvas.getContext(\"2d\");\n\t\tctx.setTransform(1, 0, 0, 1, 0, 0);\n\t\tctx.clearRect(0, 0, this.canvas.width+1, this.canvas.height+1);\n\t};\n\n\t/**\n\t * Returns a data url that contains a Base64-encoded image of the contents of the stage. The returned data url can\n\t * be specified as the src value of an image element.\n\t * @method toDataURL\n\t * @param {String} [backgroundColor] The background color to be used for the generated image. Any valid CSS color\n\t * value is allowed. The default value is a transparent background.\n\t * @param {String} [mimeType=\"image/png\"] The MIME type of the image format to be create. The default is \"image/png\". If an unknown MIME type\n\t * is passed in, or if the browser does not support the specified MIME type, the default value will be used.\n\t * @return {String} a Base64 encoded image.\n\t **/\n\tp.toDataURL = function(backgroundColor, mimeType) {\n\t\tvar data, ctx = this.canvas.getContext('2d'), w = this.canvas.width, h = this.canvas.height;\n\n\t\tif (backgroundColor) {\n\t\t\tdata = ctx.getImageData(0, 0, w, h);\n\t\t\tvar compositeOperation = ctx.globalCompositeOperation;\n\t\t\tctx.globalCompositeOperation = \"destination-over\";\n\t\t\t\n\t\t\tctx.fillStyle = backgroundColor;\n\t\t\tctx.fillRect(0, 0, w, h);\n\t\t}\n\n\t\tvar dataURL = this.canvas.toDataURL(mimeType||\"image/png\");\n\n\t\tif(backgroundColor) {\n\t\t\tctx.putImageData(data, 0, 0);\n\t\t\tctx.globalCompositeOperation = compositeOperation;\n\t\t}\n\n\t\treturn dataURL;\n\t};\n\n\t/**\n\t * Enables or disables (by passing a frequency of 0) mouse over ({{#crossLink \"DisplayObject/mouseover:event\"}}{{/crossLink}}\n\t * and {{#crossLink \"DisplayObject/mouseout:event\"}}{{/crossLink}}) and roll over events ({{#crossLink \"DisplayObject/rollover:event\"}}{{/crossLink}}\n\t * and {{#crossLink \"DisplayObject/rollout:event\"}}{{/crossLink}}) for this stage's display list. These events can\n\t * be expensive to generate, so they are disabled by default. The frequency of the events can be controlled\n\t * independently of mouse move events via the optional `frequency` parameter.\n\t *\n\t * currentFrame.\n\t\t * @property paused\n\t\t * @type {Boolean}\n\t\t * @default false\n\t\t **/\n\t\tthis.paused = true;\n\t\n\t\t/**\n\t\t * The SpriteSheet instance to play back. This includes the source image, frame dimensions, and frame\n\t\t * data. See {{#crossLink \"SpriteSheet\"}}{{/crossLink}} for more information.\n\t\t * @property spriteSheet\n\t\t * @type {SpriteSheet}\n\t\t * @readonly\n\t\t **/\n\t\tthis.spriteSheet = spriteSheet;\n\t\n\t\t/**\n\t\t * Specifies the current frame index within the currently playing animation. When playing normally, this will increase\n\t\t * from 0 to n-1, where n is the number of frames in the current animation.\n\t\t *\n\t\t * This could be a non-integer value if\n\t\t * using time-based playback (see {{#crossLink \"Sprite/framerate\"}}{{/crossLink}}, or if the animation's speed is\n\t\t * not an integer.\n\t\t * @property currentAnimationFrame\n\t\t * @type {Number}\n\t\t * @default 0\n\t\t **/\n\t\tthis.currentAnimationFrame = 0;\n\t\n\t\t/**\n\t\t * By default Sprite instances advance one frame per tick. Specifying a framerate for the Sprite (or its related\n\t\t * SpriteSheet) will cause it to advance based on elapsed time between ticks as appropriate to maintain the target\n\t\t * framerate.\n\t\t *\n\t\t * For example, if a Sprite with a framerate of 10 is placed on a Stage being updated at 40fps, then the Sprite will\n\t\t * advance roughly one frame every 4 ticks. This will not be exact, because the time between each tick will\n\t\t * vary slightly between frames.\n\t\t *\n\t\t * This feature is dependent on the tick event object (or an object with an appropriate \"delta\" property) being\n\t\t * passed into {{#crossLink \"Stage/update\"}}{{/crossLink}}.\n\t\t * @property framerate\n\t\t * @type {Number}\n\t\t * @default 0\n\t\t **/\n\t\tthis.framerate = 0;\n\t\n\t\n\t// private properties:\n\t\t/**\n\t\t * Current animation object.\n\t\t * @property _animation\n\t\t * @protected\n\t\t * @type {Object}\n\t\t * @default null\n\t\t **/\n\t\tthis._animation = null;\n\t\n\t\t/**\n\t\t * Current frame index.\n\t\t * @property _currentFrame\n\t\t * @protected\n\t\t * @type {Number}\n\t\t * @default null\n\t\t **/\n\t\tthis._currentFrame = null;\n\t\t\n\t\t/**\n\t\t * Skips the next auto advance. Used by gotoAndPlay to avoid immediately jumping to the next frame\n\t\t * @property _skipAdvance\n\t\t * @protected\n\t\t * @type {Boolean}\n\t\t * @default false\n\t\t **/\n\t\tthis._skipAdvance = false;\n\t\t\n\t\t\n\t\tif (frameOrAnimation != null) { this.gotoAndPlay(frameOrAnimation); }\n\t}\n\tvar p = createjs.extend(Sprite, createjs.DisplayObject);\n\n\t/**\n\t * Constructor alias for backwards compatibility. This method will be removed in future versions.\n\t * Subclasses should be updated to use {{#crossLink \"Utility Methods/extends\"}}{{/crossLink}}.\n\t * @method initialize\n\t * @deprecated in favour of `createjs.promote()`\n\t **/\n\tp.initialize = Sprite; // TODO: Deprecated. This is for backwards support of FlashCC spritesheet export.\n\n\n// events:\n\t/**\n\t * Dispatched when an animation reaches its ends.\n\t * @event animationend\n\t * @param {Object} target The object that dispatched the event.\n\t * @param {String} type The event type.\n\t * @param {String} name The name of the animation that just ended.\n\t * @param {String} next The name of the next animation that will be played, or null. This will be the same as name if the animation is looping.\n\t * @since 0.6.0\n\t */\n\t \n\t/**\n\t * Dispatched any time the current frame changes. For example, this could be due to automatic advancement on a tick,\n\t * or calling gotoAndPlay() or gotoAndStop().\n\t * @event change\n\t * @param {Object} target The object that dispatched the event.\n\t * @param {String} type The event type.\n\t */\n\n\n// public methods:\n\t/**\n\t * Returns true or false indicating whether the display object would be visible if drawn to a canvas.\n\t * This does not account for whether it would be visible within the boundaries of the stage.\n\t * NOTE: This method is mainly for internal use, though it may be useful for advanced uses.\n\t * @method isVisible\n\t * @return {Boolean} Boolean indicating whether the display object would be visible if drawn to a canvas\n\t **/\n\tp.isVisible = function() {\n\t\tvar hasContent = this.cacheCanvas || this.spriteSheet.complete;\n\t\treturn !!(this.visible && this.alpha > 0 && this.scaleX != 0 && this.scaleY != 0 && hasContent);\n\t};\n\n\t/**\n\t * Draws the display object into the specified context ignoring its visible, alpha, shadow, and transform.\n\t * Returns true if the draw was handled (useful for overriding functionality).\n\t * NOTE: This method is mainly for internal use, though it may be useful for advanced uses.\n\t * @method draw\n\t * @param {CanvasRenderingContext2D} ctx The canvas 2D context object to draw into.\n\t * @param {Boolean} ignoreCache Indicates whether the draw operation should ignore any current cache.\n\t * For example, used for drawing the cache (to prevent it from simply drawing an existing cache back\n\t * into itself).\n\t **/\n\tp.draw = function(ctx, ignoreCache) {\n\t\tif (this.DisplayObject_draw(ctx, ignoreCache)) { return true; }\n\t\tthis._normalizeFrame();\n\t\tvar o = this.spriteSheet.getFrame(this._currentFrame|0);\n\t\tif (!o) { return false; }\n\t\tvar rect = o.rect;\n\t\tif (rect.width && rect.height) { ctx.drawImage(o.image, rect.x, rect.y, rect.width, rect.height, -o.regX, -o.regY, rect.width, rect.height); }\n\t\treturn true;\n\t};\n\n\t//Note, the doc sections below document using the specified APIs (from DisplayObject) from\n\t//Bitmap. This is why they have no method implementations.\n\n\t/**\n\t * Because the content of a Sprite is already in a raster format, cache is unnecessary for Sprite instances.\n\t * You should not cache Sprite instances as it can degrade performance.\n\t * @method cache\n\t **/\n\n\t/**\n\t * Because the content of a Sprite is already in a raster format, cache is unnecessary for Sprite instances.\n\t * You should not cache Sprite instances as it can degrade performance.\n\t * @method updateCache\n\t **/\n\n\t/**\n\t * Because the content of a Sprite is already in a raster format, cache is unnecessary for Sprite instances.\n\t * You should not cache Sprite instances as it can degrade performance.\n\t * @method uncache\n\t **/\n\n\t/**\n\t * Play (unpause) the current animation. The Sprite will be paused if either {{#crossLink \"Sprite/stop\"}}{{/crossLink}}\n\t * or {{#crossLink \"Sprite/gotoAndStop\"}}{{/crossLink}} is called. Single frame animations will remain\n\t * unchanged.\n\t * @method play\n\t **/\n\tp.play = function() {\n\t\tthis.paused = false;\n\t};\n\n\t/**\n\t * Stop playing a running animation. The Sprite will be playing if {{#crossLink \"Sprite/gotoAndPlay\"}}{{/crossLink}}\n\t * is called. Note that calling {{#crossLink \"Sprite/gotoAndPlay\"}}{{/crossLink}} or {{#crossLink \"Sprite/play\"}}{{/crossLink}}\n\t * will resume playback.\n\t * @method stop\n\t **/\n\tp.stop = function() {\n\t\tthis.paused = true;\n\t};\n\n\t/**\n\t * Sets paused to false and plays the specified animation name, named frame, or frame number.\n\t * @method gotoAndPlay\n\t * @param {String|Number} frameOrAnimation The frame number or animation name that the playhead should move to\n\t * and begin playing.\n\t **/\n\tp.gotoAndPlay = function(frameOrAnimation) {\n\t\tthis.paused = false;\n\t\tthis._skipAdvance = true;\n\t\tthis._goto(frameOrAnimation);\n\t};\n\n\t/**\n\t * Sets paused to true and seeks to the specified animation name, named frame, or frame number.\n\t * @method gotoAndStop\n\t * @param {String|Number} frameOrAnimation The frame number or animation name that the playhead should move to\n\t * and stop.\n\t **/\n\tp.gotoAndStop = function(frameOrAnimation) {\n\t\tthis.paused = true;\n\t\tthis._goto(frameOrAnimation);\n\t};\n\n\t/**\n\t * Advances the playhead. This occurs automatically each tick by default.\n\t * @param [time] {Number} The amount of time in ms to advance by. Only applicable if framerate is set on the Sprite\n\t * or its SpriteSheet.\n\t * @method advance\n\t*/\n\tp.advance = function(time) {\n\t\tvar fps = this.framerate || this.spriteSheet.framerate;\n\t\tvar t = (fps && time != null) ? time/(1000/fps) : 1;\n\t\tthis._normalizeFrame(t);\n\t};\n\t\n\t/**\n\t * Returns a {{#crossLink \"Rectangle\"}}{{/crossLink}} instance defining the bounds of the current frame relative to\n\t * the origin. For example, a 90 x 70 frame with regX=50 and regY=40 would return a\n\t * rectangle with [x=-50, y=-40, width=90, height=70]. This ignores transformations on the display object.\n\t *\n\t * Also see the SpriteSheet {{#crossLink \"SpriteSheet/getFrameBounds\"}}{{/crossLink}} method.\n\t * @method getBounds\n\t * @return {Rectangle} A Rectangle instance. Returns null if the frame does not exist, or the image is not fully\n\t * loaded.\n\t **/\n\tp.getBounds = function() {\n\t\t// TODO: should this normalizeFrame?\n\t\treturn this.DisplayObject_getBounds() || this.spriteSheet.getFrameBounds(this.currentFrame, this._rectangle);\n\t};\n\n\t/**\n\t * Returns a clone of the Sprite instance. Note that the same SpriteSheet is shared between cloned\n\t * instances.\n\t * @method clone\n\t * @return {Sprite} a clone of the Sprite instance.\n\t **/\n\tp.clone = function() {\n\t\treturn this._cloneProps(new Sprite(this.spriteSheet));\n\t};\n\n\t/**\n\t * Returns a string representation of this object.\n\t * @method toString\n\t * @return {String} a string representation of the instance.\n\t **/\n\tp.toString = function() {\n\t\treturn \"[Sprite (name=\"+ this.name +\")]\";\n\t};\n\n// private methods:\n\t/**\n\t * @method _cloneProps\n\t * @param {Sprite} o\n\t * @return {Sprite} o\n\t * @protected\n\t **/\n\tp._cloneProps = function(o) {\n\t\tthis.DisplayObject__cloneProps(o);\n\t\to.currentFrame = this.currentFrame;\n\t\to.currentAnimation = this.currentAnimation;\n\t\to.paused = this.paused;\n\t\to.currentAnimationFrame = this.currentAnimationFrame;\n\t\to.framerate = this.framerate;\n\t\t\n\t\to._animation = this._animation;\n\t\to._currentFrame = this._currentFrame;\n\t\to._skipAdvance = this._skipAdvance;\n\t\treturn o;\n\t};\n\t\n\t/**\n\t * Advances the currentFrame if paused is not true. This is called automatically when the {{#crossLink \"Stage\"}}{{/crossLink}}\n\t * ticks.\n\t * @param {Object} evtObj An event object that will be dispatched to all tick listeners. This object is reused between dispatchers to reduce construction & GC costs.\n\t * @protected\n\t * @method _tick\n\t **/\n\tp._tick = function(evtObj) {\n\t\tif (!this.paused) {\n\t\t\tif (!this._skipAdvance) { this.advance(evtObj&&evtObj.delta); }\n\t\t\tthis._skipAdvance = false;\n\t\t}\n\t\tthis.DisplayObject__tick(evtObj);\n\t};\n\n\n\t/**\n\t * Normalizes the current frame, advancing animations and dispatching callbacks as appropriate.\n\t * @protected\n\t * @method _normalizeFrame\n\t **/\n\tp._normalizeFrame = function(frameDelta) {\n\t\tframeDelta = frameDelta || 0;\n\t\tvar animation = this._animation;\n\t\tvar paused = this.paused;\n\t\tvar frame = this._currentFrame;\n\t\tvar l;\n\t\t\n\t\tif (animation) {\n\t\t\tvar speed = animation.speed || 1;\n\t\t\tvar animFrame = this.currentAnimationFrame;\n\t\t\tl = animation.frames.length;\n\t\t\tif (animFrame + frameDelta * speed >= l) {\n\t\t\t\tvar next = animation.next;\n\t\t\t\tif (this._dispatchAnimationEnd(animation, frame, paused, next, l - 1)) {\n\t\t\t\t\t// something changed in the event stack, so we shouldn't make any more changes here.\n\t\t\t\t\treturn;\n\t\t\t\t} else if (next) {\n\t\t\t\t\t// sequence. Automatically calls _normalizeFrame again with the remaining frames.\n\t\t\t\t\treturn this._goto(next, frameDelta - (l - animFrame) / speed);\n\t\t\t\t} else {\n\t\t\t\t\t// end.\n\t\t\t\t\tthis.paused = true;\n\t\t\t\t\tanimFrame = animation.frames.length - 1;\n\t\t\t\t}\n\t\t\t} else {\n\t\t\t\tanimFrame += frameDelta * speed;\n\t\t\t}\n\t\t\tthis.currentAnimationFrame = animFrame;\n\t\t\tthis._currentFrame = animation.frames[animFrame | 0]\n\t\t} else {\n\t\t\tframe = (this._currentFrame += frameDelta);\n\t\t\tl = this.spriteSheet.getNumFrames();\n\t\t\tif (frame >= l && l > 0) {\n\t\t\t\tif (!this._dispatchAnimationEnd(animation, frame, paused, l - 1)) {\n\t\t\t\t\t// looped.\n\t\t\t\t\tif ((this._currentFrame -= l) >= l) { return this._normalizeFrame(); }\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tframe = this._currentFrame | 0;\n\t\tif (this.currentFrame != frame) {\n\t\t\tthis.currentFrame = frame;\n\t\t\tthis.dispatchEvent(\"change\");\n\t\t}\n\t};\n\n\t/**\n\t * Dispatches the \"animationend\" event. Returns true if a handler changed the animation (ex. calling {{#crossLink \"Sprite/stop\"}}{{/crossLink}},\n\t * {{#crossLink \"Sprite/gotoAndPlay\"}}{{/crossLink}}, etc.)\n\t * @property _dispatchAnimationEnd\n\t * @private\n\t * @type {Function}\n\t **/\n\tp._dispatchAnimationEnd = function(animation, frame, paused, next, end) {\n\t\tvar name = animation ? animation.name : null;\n\t\tif (this.hasEventListener(\"animationend\")) {\n\t\t\tvar evt = new createjs.Event(\"animationend\");\n\t\t\tevt.name = name;\n\t\t\tevt.next = next;\n\t\t\tthis.dispatchEvent(evt);\n\t\t}\n\t\t// did the animation get changed in the event stack?:\n\t\tvar changed = (this._animation != animation || this._currentFrame != frame);\n\t\t// if the animation hasn't changed, but the sprite was paused, then we want to stick to the last frame:\n\t\tif (!changed && !paused && this.paused) { this.currentAnimationFrame = end; changed = true; }\n\t\treturn changed;\n\t};\n\n\t/**\n\t * Moves the playhead to the specified frame number or animation.\n\t * @method _goto\n\t * @param {String|Number} frameOrAnimation The frame number or animation that the playhead should move to.\n\t * @param {Boolean} [frame] The frame of the animation to go to. Defaults to 0.\n\t * @protected\n\t **/\n\tp._goto = function(frameOrAnimation, frame) {\n\t\tthis.currentAnimationFrame = 0;\n\t\tif (isNaN(frameOrAnimation)) {\n\t\t\tvar data = this.spriteSheet.getAnimation(frameOrAnimation);\n\t\t\tif (data) {\n\t\t\t\tthis._animation = data;\n\t\t\t\tthis.currentAnimation = frameOrAnimation;\n\t\t\t\tthis._normalizeFrame(frame);\n\t\t\t}\n\t\t} else {\n\t\t\tthis.currentAnimation = this._animation = null;\n\t\t\tthis._currentFrame = frameOrAnimation;\n\t\t\tthis._normalizeFrame();\n\t\t}\n\t};\n\n\n\tcreatejs.Sprite = createjs.promote(Sprite, \"DisplayObject\");\n}());\n\n//##############################################################################\n// Shape.js\n//##############################################################################\n\n(function() {\n\t\"use strict\";\n\n\n// constructor:\n\t/**\n\t * A Shape allows you to display vector art in the display list. It composites a {{#crossLink \"Graphics\"}}{{/crossLink}}\n\t * instance which exposes all of the vector drawing methods. The Graphics instance can be shared between multiple Shape\n\t * instances to display the same vector graphics with different positions or transforms.\n\t *\n\t * If the vector art will not\n\t * change between draws, you may want to use the {{#crossLink \"DisplayObject/cache\"}}{{/crossLink}} method to reduce the\n\t * rendering cost.\n\t *\n\t * lineHeight (if specified) or {{#crossLink \"Text/getMeasuredLineHeight\"}}{{/crossLink}}. Note that\n\t * this operation requires the text flowing logic to run, which has an associated CPU cost.\n\t * @method getMeasuredHeight\n\t * @return {Number} The approximate height of the untransformed multi-line text.\n\t **/\n\tp.getMeasuredHeight = function() {\n\t\treturn this._drawText(null,{}).height;\n\t};\n\n\t/**\n\t * Docced in superclass.\n\t */\n\tp.getBounds = function() {\n\t\tvar rect = this.DisplayObject_getBounds();\n\t\tif (rect) { return rect; }\n\t\tif (this.text == null || this.text === \"\") { return null; }\n\t\tvar o = this._drawText(null, {});\n\t\tvar w = (this.maxWidth && this.maxWidth < o.width) ? this.maxWidth : o.width;\n\t\tvar x = w * Text.H_OFFSETS[this.textAlign||\"left\"];\n\t\tvar lineHeight = this.lineHeight||this.getMeasuredLineHeight();\n\t\tvar y = lineHeight * Text.V_OFFSETS[this.textBaseline||\"top\"];\n\t\treturn this._rectangle.setValues(x, y, w, o.height);\n\t};\n\t\n\t/**\n\t * Returns an object with width, height, and lines properties. The width and height are the visual width and height\n\t * of the drawn text. The lines property contains an array of strings, one for\n\t * each line of text that will be drawn, accounting for line breaks and wrapping. These strings have trailing\n\t * whitespace removed.\n\t * @method getMetrics\n\t * @return {Object} An object with width, height, and lines properties.\n\t **/\n\tp.getMetrics = function() {\n\t\tvar o = {lines:[]};\n\t\to.lineHeight = this.lineHeight || this.getMeasuredLineHeight();\n\t\to.vOffset = o.lineHeight * Text.V_OFFSETS[this.textBaseline||\"top\"];\n\t\treturn this._drawText(null, o, o.lines);\n\t};\n\n\t/**\n\t * Returns a clone of the Text instance.\n\t * @method clone\n\t * @return {Text} a clone of the Text instance.\n\t **/\n\tp.clone = function() {\n\t\treturn this._cloneProps(new Text(this.text, this.font, this.color));\n\t};\n\n\t/**\n\t * Returns a string representation of this object.\n\t * @method toString\n\t * @return {String} a string representation of the instance.\n\t **/\n\tp.toString = function() {\n\t\treturn \"[Text (text=\"+ (this.text.length > 20 ? this.text.substr(0, 17)+\"...\" : this.text) +\")]\";\n\t};\n\n\n// private methods:\n\t/**\n\t * @method _cloneProps\n\t * @param {Text} o\n\t * @protected\n\t * @return {Text} o\n\t **/\n\tp._cloneProps = function(o) {\n\t\tthis.DisplayObject__cloneProps(o);\n\t\to.textAlign = this.textAlign;\n\t\to.textBaseline = this.textBaseline;\n\t\to.maxWidth = this.maxWidth;\n\t\to.outline = this.outline;\n\t\to.lineHeight = this.lineHeight;\n\t\to.lineWidth = this.lineWidth;\n\t\treturn o;\n\t};\n\n\t/**\n\t * @method _getWorkingContext\n\t * @param {CanvasRenderingContext2D} ctx\n\t * @return {CanvasRenderingContext2D}\n\t * @protected\n\t **/\n\tp._prepContext = function(ctx) {\n\t\tctx.font = this.font||\"10px sans-serif\";\n\t\tctx.textAlign = this.textAlign||\"left\";\n\t\tctx.textBaseline = this.textBaseline||\"top\";\n\t\treturn ctx;\n\t};\n\n\t/**\n\t * Draws multiline text.\n\t * @method _drawText\n\t * @param {CanvasRenderingContext2D} ctx\n\t * @param {Object} o\n\t * @param {Array} lines\n\t * @return {Object}\n\t * @protected\n\t **/\n\tp._drawText = function(ctx, o, lines) {\n\t\tvar paint = !!ctx;\n\t\tif (!paint) {\n\t\t\tctx = Text._workingContext;\n\t\t\tctx.save();\n\t\t\tthis._prepContext(ctx);\n\t\t}\n\t\tvar lineHeight = this.lineHeight||this.getMeasuredLineHeight();\n\t\t\n\t\tvar maxW = 0, count = 0;\n\t\tvar hardLines = String(this.text).split(/(?:\\r\\n|\\r|\\n)/);\n\t\tfor (var i=0, l=hardLines.length; itween.to() to animate and set properties (use no duration to have it set\n\t * immediately), and the tween.wait() method to create delays between animations. Note that using the\n\t * tween.set() method to affect properties will likely not provide the desired result.\n\t *\n\t * @class MovieClip\n\t * @main MovieClip\n\t * @extends Container\n\t * @constructor\n\t * @param {String} [mode=independent] Initial value for the mode property. One of {{#crossLink \"MovieClip/INDEPENDENT:property\"}}{{/crossLink}},\n\t * {{#crossLink \"MovieClip/SINGLE_FRAME:property\"}}{{/crossLink}}, or {{#crossLink \"MovieClip/SYNCHED:property\"}}{{/crossLink}}.\n\t * The default is {{#crossLink \"MovieClip/INDEPENDENT:property\"}}{{/crossLink}}.\n\t * @param {Number} [startPosition=0] Initial value for the {{#crossLink \"MovieClip/startPosition:property\"}}{{/crossLink}}\n\t * property.\n\t * @param {Boolean} [loop=true] Initial value for the {{#crossLink \"MovieClip/loop:property\"}}{{/crossLink}}\n\t * property. The default is `true`.\n\t * @param {Object} [labels=null] A hash of labels to pass to the {{#crossLink \"MovieClip/timeline:property\"}}{{/crossLink}}\n\t * instance associated with this MovieClip. Labels only need to be passed if they need to be used.\n\t **/\n\tfunction MovieClip(mode, startPosition, loop, labels) {\n\t\tthis.Container_constructor();\n\t\t!MovieClip.inited&&MovieClip.init(); // static init\n\t\t\n\t\t\n\t// public properties:\n\t\t/**\n\t\t * Controls how this MovieClip advances its time. Must be one of 0 (INDEPENDENT), 1 (SINGLE_FRAME), or 2 (SYNCHED).\n\t\t * See each constant for a description of the behaviour.\n\t\t * @property mode\n\t\t * @type String\n\t\t * @default null\n\t\t **/\n\t\tthis.mode = mode||MovieClip.INDEPENDENT;\n\t\n\t\t/**\n\t\t * Specifies what the first frame to play in this movieclip, or the only frame to display if mode is SINGLE_FRAME.\n\t\t * @property startPosition\n\t\t * @type Number\n\t\t * @default 0\n\t\t */\n\t\tthis.startPosition = startPosition || 0;\n\t\n\t\t/**\n\t\t * Indicates whether this MovieClip should loop when it reaches the end of its timeline.\n\t\t * @property loop\n\t\t * @type Boolean\n\t\t * @default true\n\t\t */\n\t\tthis.loop = loop;\n\t\n\t\t/**\n\t\t * The current frame of the movieclip.\n\t\t * @property currentFrame\n\t\t * @type Number\n\t\t * @default 0\n\t\t * @readonly\n\t\t */\n\t\tthis.currentFrame = 0;\n\t\n\t\t/**\n\t\t * The TweenJS Timeline that is associated with this MovieClip. This is created automatically when the MovieClip\n\t\t * instance is initialized. Animations are created by adding TweenJS Tween\n\t\t * instances to the timeline.\n\t\t *\n\t\t * tweenInstance.to() method. Note that using Tween.set is not recommended to\n\t\t * create MovieClip animations. The following example will toggle the target off on frame 0, and then back on for\n\t\t * frame 1. You can use the \"visible\" property to achieve the same effect.\n\t\t *\n\t\t * var tween = createjs.Tween.get(target).to({_off:false})\n\t\t * .wait(1).to({_off:true})\n\t\t * .wait(1).to({_off:false});\n\t\t *\n\t\t * @property timeline\n\t\t * @type Timeline\n\t\t * @default null\n\t\t */\n\t\tthis.timeline = new createjs.Timeline(null, labels, {paused:true, position:startPosition, useTicks:true});\n\t\n\t\t/**\n\t\t * If true, the MovieClip's position will not advance when ticked.\n\t\t * @property paused\n\t\t * @type Boolean\n\t\t * @default false\n\t\t */\n\t\tthis.paused = false;\n\t\n\t\t/**\n\t\t * If true, actions in this MovieClip's tweens will be run when the playhead advances.\n\t\t * @property actionsEnabled\n\t\t * @type Boolean\n\t\t * @default true\n\t\t */\n\t\tthis.actionsEnabled = true;\n\t\n\t\t/**\n\t\t * If true, the MovieClip will automatically be reset to its first frame whenever the timeline adds\n\t\t * it back onto the display list. This only applies to MovieClip instances with mode=INDEPENDENT.\n\t\t * AbstractLoader.IMAGE). Will return `null` if\n\t * the type can not be determined by the extension.\n\t * @static\n\t */\n\ts.getTypeByExtension = function (extension) {\n\t\tif (extension == null) {\n\t\t\treturn createjs.AbstractLoader.TEXT;\n\t\t}\n\n\t\tswitch (extension.toLowerCase()) {\n\t\t\tcase \"jpeg\":\n\t\t\tcase \"jpg\":\n\t\t\tcase \"gif\":\n\t\t\tcase \"png\":\n\t\t\tcase \"webp\":\n\t\t\tcase \"bmp\":\n\t\t\t\treturn createjs.AbstractLoader.IMAGE;\n\t\t\tcase \"ogg\":\n\t\t\tcase \"mp3\":\n\t\t\tcase \"webm\":\n\t\t\t\treturn createjs.AbstractLoader.SOUND;\n\t\t\tcase \"mp4\":\n\t\t\tcase \"webm\":\n\t\t\tcase \"ts\":\n\t\t\t\treturn createjs.AbstractLoader.VIDEO;\n\t\t\tcase \"json\":\n\t\t\t\treturn createjs.AbstractLoader.JSON;\n\t\t\tcase \"xml\":\n\t\t\t\treturn createjs.AbstractLoader.XML;\n\t\t\tcase \"css\":\n\t\t\t\treturn createjs.AbstractLoader.CSS;\n\t\t\tcase \"js\":\n\t\t\t\treturn createjs.AbstractLoader.JAVASCRIPT;\n\t\t\tcase 'svg':\n\t\t\t\treturn createjs.AbstractLoader.SVG;\n\t\t\tdefault:\n\t\t\t\treturn createjs.AbstractLoader.TEXT;\n\t\t}\n\t};\n\n\tcreatejs.RequestUtils = s;\n\n}());\n\n//##############################################################################\n// AbstractLoader.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n// constructor\n\t/**\n\t * The base loader, which defines all the generic methods, properties, and events. All loaders extend this class,\n\t * including the {{#crossLink \"LoadQueue\"}}{{/crossLink}}.\n\t * @class AbstractLoader\n\t * @param {LoadItem|object|string} loadItem The item to be loaded.\n\t * @param {Boolean} [preferXHR] Determines if the LoadItem should try and load using XHR, or take a\n\t * tag-based approach, which can be better in cross-domain situations. Not all loaders can load using one or the\n\t * other, so this is a suggested directive.\n\t * @param {String} [type] The type of loader. Loader types are defined as constants on the AbstractLoader class,\n\t * such as {{#crossLink \"IMAGE:property\"}}{{/crossLink}}, {{#crossLink \"CSS:property\"}}{{/crossLink}}, etc.\n\t * @extends EventDispatcher\n\t */\n\tfunction AbstractLoader(loadItem, preferXHR, type) {\n\t\tthis.EventDispatcher_constructor();\n\n\t\t// public properties\n\t\t/**\n\t\t * If the loader has completed loading. This provides a quick check, but also ensures that the different approaches\n\t\t * used for loading do not pile up resulting in more than one `complete` {{#crossLink \"Event\"}}{{/crossLink}}.\n\t\t * @property loaded\n\t\t * @type {Boolean}\n\t\t * @default false\n\t\t */\n\t\tthis.loaded = false;\n\n\t\t/**\n\t\t * Determine if the loader was canceled. Canceled loads will not fire complete events. Note that this property\n\t\t * is readonly, so {{#crossLink \"LoadQueue\"}}{{/crossLink}} queues should be closed using {{#crossLink \"LoadQueue/close\"}}{{/crossLink}}\n\t\t * instead.\n\t\t * @property canceled\n\t\t * @type {Boolean}\n\t\t * @default false\n\t\t * @readonly\n\t\t */\n\t\tthis.canceled = false;\n\n\t\t/**\n\t\t * The current load progress (percentage) for this item. This will be a number between 0 and 1.\n\t\t *\n\t\t * loaded\n\t * and total properties.\n\t * @protected\n\t */\n\tp._sendProgress = function (value) {\n\t\tif (this._isCanceled()) { return; }\n\t\tvar event = null;\n\t\tif (typeof(value) == \"number\") {\n\t\t\tthis.progress = value;\n\t\t\tevent = new createjs.ProgressEvent(this.progress);\n\t\t} else {\n\t\t\tevent = value;\n\t\t\tthis.progress = value.loaded / value.total;\n\t\t\tevent.progress = this.progress;\n\t\t\tif (isNaN(this.progress) || this.progress == Infinity) { this.progress = 0; }\n\t\t}\n\t\tthis.hasEventListener(\"progress\") && this.dispatchEvent(event);\n\t};\n\n\t/**\n\t * Dispatch a complete {{#crossLink \"Event\"}}{{/crossLink}}. Please see the {{#crossLink \"AbstractLoader/complete:event\"}}{{/crossLink}} event\n\t * @method _sendComplete\n\t * @protected\n\t */\n\tp._sendComplete = function () {\n\t\tif (this._isCanceled()) { return; }\n\n\t\tthis.loaded = true;\n\n\t\tvar event = new createjs.Event(\"complete\");\n\t\tevent.rawResult = this._rawResult;\n\n\t\tif (this._result != null) {\n\t\t\tevent.result = this._result;\n\t\t}\n\n\t\tthis.dispatchEvent(event);\n\t};\n\n\t/**\n\t * Dispatch an error {{#crossLink \"Event\"}}{{/crossLink}}. Please see the {{#crossLink \"AbstractLoader/error:event\"}}{{/crossLink}}\n\t * event for details on the event payload.\n\t * @method _sendError\n\t * @param {ErrorEvent} event The event object containing specific error properties.\n\t * @protected\n\t */\n\tp._sendError = function (event) {\n\t\tif (this._isCanceled() || !this.hasEventListener(\"error\")) { return; }\n\t\tif (event == null) {\n\t\t\tevent = new createjs.ErrorEvent(\"PRELOAD_ERROR_EMPTY\"); // TODO: Populate error\n\t\t}\n\t\tthis.dispatchEvent(event);\n\t};\n\n\t/**\n\t * Determine if the load has been canceled. This is important to ensure that method calls or asynchronous events\n\t * do not cause issues after the queue has been cleaned up.\n\t * @method _isCanceled\n\t * @return {Boolean} If the loader has been canceled.\n\t * @protected\n\t */\n\tp._isCanceled = function () {\n\t\tif (window.createjs == null || this.canceled) {\n\t\t\treturn true;\n\t\t}\n\t\treturn false;\n\t};\n\n\t/**\n\t * A custom result formatter function, which is called just before a request dispatches its complete event. Most\n\t * loader types already have an internal formatter, but this can be user-overridden for custom formatting. The\n\t * formatted result will be available on Loaders using {{#crossLink \"getResult\"}}{{/crossLink}}, and passing `true`.\n\t * @property resultFormatter\n\t * @type Function\n\t * @return {Object} The formatted result\n\t * @since 0.6.0\n\t */\n\tp.resultFormatter = null;\n\n\t/**\n\t * Handle events from internal requests. By default, loaders will handle, and redispatch the necessary events, but\n\t * this method can be overridden for custom behaviours.\n\t * @method handleEvent\n\t * @param {Event} event The event that the internal request dispatches.\n\t * @protected\n\t * @since 0.6.0\n\t */\n\tp.handleEvent = function (event) {\n\t\tswitch (event.type) {\n\t\t\tcase \"complete\":\n\t\t\t\tthis._rawResult = event.target._response;\n\t\t\t\tvar result = this.resultFormatter && this.resultFormatter(this);\n\t\t\t\tif (result instanceof Function) {\n\t\t\t\t\tresult.call(this,\n\t\t\t\t\t\t\tcreatejs.proxy(this._resultFormatSuccess, this),\n\t\t\t\t\t\t\tcreatejs.proxy(this._resultFormatFailed, this)\n\t\t\t\t\t);\n\t\t\t\t} else {\n\t\t\t\t\tthis._result = result || this._rawResult;\n\t\t\t\t\tthis._sendComplete();\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t\tcase \"progress\":\n\t\t\t\tthis._sendProgress(event);\n\t\t\t\tbreak;\n\t\t\tcase \"error\":\n\t\t\t\tthis._sendError(event);\n\t\t\t\tbreak;\n\t\t\tcase \"loadstart\":\n\t\t\t\tthis._sendLoadStart();\n\t\t\t\tbreak;\n\t\t\tcase \"abort\":\n\t\t\tcase \"timeout\":\n\t\t\t\tif (!this._isCanceled()) {\n\t\t\t\t\tthis.dispatchEvent(new createjs.ErrorEvent(\"PRELOAD_\" + event.type.toUpperCase() + \"_ERROR\"));\n\t\t\t\t}\n\t\t\t\tbreak;\n\t\t}\n\t};\n\n\t/**\n\t * The \"success\" callback passed to {{#crossLink \"AbstractLoader/resultFormatter\"}}{{/crossLink}} asynchronous\n\t * functions.\n\t * @method _resultFormatSuccess\n\t * @param {Object} result The formatted result\n\t * @private\n\t */\n\tp._resultFormatSuccess = function (result) {\n\t\tthis._result = result;\n\t\tthis._sendComplete();\n\t};\n\n\t/**\n\t * The \"error\" callback passed to {{#crossLink \"AbstractLoader/resultFormatter\"}}{{/crossLink}} asynchronous\n\t * functions.\n\t * @method _resultFormatSuccess\n\t * @param {Object} error The error event\n\t * @private\n\t */\n\tp._resultFormatFailed = function (event) {\n\t\tthis._sendError(event);\n\t};\n\n\t/**\n\t * @method buildPath\n\t * @protected\n\t * @deprecated Use the {{#crossLink \"RequestUtils\"}}{{/crossLink}} method {{#crossLink \"RequestUtils/buildPath\"}}{{/crossLink}}\n\t * instead.\n\t */\n\tp.buildPath = function (src, data) {\n\t\treturn createjs.RequestUtils.buildPath(src, data);\n\t};\n\n\t/**\n\t * @method toString\n\t * @return {String} a string representation of the instance.\n\t */\n\tp.toString = function () {\n\t\treturn \"[PreloadJS AbstractLoader]\";\n\t};\n\n\tcreatejs.AbstractLoader = createjs.promote(AbstractLoader, \"EventDispatcher\");\n\n}());\n\n//##############################################################################\n// AbstractMediaLoader.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t// constructor\n\t/**\n\t * The AbstractMediaLoader is a base class that handles some of the shared methods and properties of loaders that\n\t * handle HTML media elements, such as Video and Audio.\n\t * @class AbstractMediaLoader\n\t * @param {LoadItem|Object} loadItem\n\t * @param {Boolean} preferXHR\n\t * @param {String} type The type of media to load. Usually \"video\" or \"audio\".\n\t * @extends AbstractLoader\n\t * @constructor\n\t */\n\tfunction AbstractMediaLoader(loadItem, preferXHR, type) {\n\t\tthis.AbstractLoader_constructor(loadItem, preferXHR, type);\n\n\t\t// public properties\n\t\tthis.resultFormatter = this._formatResult;\n\n\t\t// protected properties\n\t\tthis._tagSrcAttribute = \"src\";\n\n this.on(\"initialize\", this._updateXHR, this);\n\t};\n\n\tvar p = createjs.extend(AbstractMediaLoader, createjs.AbstractLoader);\n\n\t// static properties\n\t// public methods\n\tp.load = function () {\n\t\t// TagRequest will handle most of this, but Sound / Video need a few custom properties, so just handle them here.\n\t\tif (!this._tag) {\n\t\t\tthis._tag = this._createTag(this._item.src);\n\t\t}\n\n\t\tthis._tag.preload = \"auto\";\n\t\tthis._tag.load();\n\n\t\tthis.AbstractLoader_load();\n\t};\n\n\t// protected methods\n\t/**\n\t * Creates a new tag for loading if it doesn't exist yet.\n\t * @method _createTag\n\t * @private\n\t */\n\tp._createTag = function () {};\n\n\n\tp._createRequest = function() {\n\t\tif (!this._preferXHR) {\n\t\t\tthis._request = new createjs.MediaTagRequest(this._item, this._tag || this._createTag(), this._tagSrcAttribute);\n\t\t} else {\n\t\t\tthis._request = new createjs.XHRRequest(this._item);\n\t\t}\n\t};\n\n // protected methods\n /**\n * Before the item loads, set its mimeType and responseType.\n * @property _updateXHR\n * @param {Event} event\n * @private\n */\n p._updateXHR = function (event) {\n // Only exists for XHR\n if (event.loader.setResponseType) {\n event.loader.setResponseType(\"blob\");\n }\n };\n\n\t/**\n\t * The result formatter for media files.\n\t * @method _formatResult\n\t * @param {AbstractLoader} loader\n\t * @returns {HTMLVideoElement|HTMLAudioElement}\n\t * @private\n\t */\n\tp._formatResult = function (loader) {\n\t\tthis._tag.removeEventListener && this._tag.removeEventListener(\"canplaythrough\", this._loadedHandler);\n\t\tthis._tag.onstalled = null;\n\t\tif (this._preferXHR) {\n var URL = window.URL || window.webkitURL;\n var result = loader.getResult(true);\n\n\t\t\tloader.getTag().src = URL.createObjectURL(result);\n\t\t}\n\t\treturn loader.getTag();\n\t};\n\n\tcreatejs.AbstractMediaLoader = createjs.promote(AbstractMediaLoader, \"AbstractLoader\");\n\n}());\n\n//##############################################################################\n// AbstractRequest.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t/**\n\t * A base class for actual data requests, such as {{#crossLink \"XHRRequest\"}}{{/crossLink}}, {{#crossLink \"TagRequest\"}}{{/crossLink}},\n\t * and {{#crossLink \"MediaRequest\"}}{{/crossLink}}. PreloadJS loaders will typically use a data loader under the\n\t * hood to get data.\n\t * @class AbstractRequest\n\t * @param {LoadItem} item\n\t * @constructor\n\t */\n\tvar AbstractRequest = function (item) {\n\t\tthis._item = item;\n\t};\n\n\tvar p = createjs.extend(AbstractRequest, createjs.EventDispatcher);\n\n\t// public methods\n\t/**\n\t * Begin a load.\n\t * @method load\n\t */\n\tp.load = function() {};\n\n\t/**\n\t * Clean up a request.\n\t * @method destroy\n\t */\n\tp.destroy = function() {};\n\n\t/**\n\t * Cancel an in-progress request.\n\t * @method cancel\n\t */\n\tp.cancel = function() {};\n\n\tcreatejs.AbstractRequest = createjs.promote(AbstractRequest, \"EventDispatcher\");\n\n}());\n\n//##############################################################################\n// TagRequest.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t// constructor\n\t/**\n\t * An {{#crossLink \"AbstractRequest\"}}{{/crossLink}} that loads HTML tags, such as images and scripts.\n\t * @class TagRequest\n\t * @param {LoadItem} loadItem\n\t * @param {HTMLElement} tag\n\t * @param {String} srcAttribute The tag attribute that specifies the source, such as \"src\", \"href\", etc.\n\t */\n\tfunction TagRequest(loadItem, tag, srcAttribute) {\n\t\tthis.AbstractRequest_constructor(loadItem);\n\n\t\t// protected properties\n\t\t/**\n\t\t * The HTML tag instance that is used to load.\n\t\t * @property _tag\n\t\t * @type {HTMLElement}\n\t\t * @protected\n\t\t */\n\t\tthis._tag = tag;\n\n\t\t/**\n\t\t * The tag attribute that specifies the source, such as \"src\", \"href\", etc.\n\t\t * @property _tagSrcAttribute\n\t\t * @type {String}\n\t\t * @protected\n\t\t */\n\t\tthis._tagSrcAttribute = srcAttribute;\n\n\t\t/**\n\t\t * A method closure used for handling the tag load event.\n\t\t * @property _loadedHandler\n\t\t * @type {Function}\n\t\t * @private\n\t\t */\n\t\tthis._loadedHandler = createjs.proxy(this._handleTagComplete, this);\n\n\t\t/**\n\t\t * Determines if the element was added to the DOM automatically by PreloadJS, so it can be cleaned up after.\n\t\t * @property _addedToDOM\n\t\t * @type {Boolean}\n\t\t * @private\n\t\t */\n\t\tthis._addedToDOM = false;\n\n\t\t/**\n\t\t * Determines what the tags initial style.visibility was, so we can set it correctly after a load.\n\t\t *\n\t\t * @type {null}\n\t\t * @private\n\t\t */\n\t\tthis._startTagVisibility = null;\n\t};\n\n\tvar p = createjs.extend(TagRequest, createjs.AbstractRequest);\n\n\t// public methods\n\tp.load = function () {\n\t\tthis._tag.onload = createjs.proxy(this._handleTagComplete, this);\n\t\tthis._tag.onreadystatechange = createjs.proxy(this._handleReadyStateChange, this);\n\t\tthis._tag.onerror = createjs.proxy(this._handleError, this);\n\n\t\tvar evt = new createjs.Event(\"initialize\");\n\t\tevt.loader = this._tag;\n\n\t\tthis.dispatchEvent(evt);\n\n\t\tthis._hideTag();\n\n\t\tthis._loadTimeout = setTimeout(createjs.proxy(this._handleTimeout, this), this._item.loadTimeout);\n\n\t\tthis._tag[this._tagSrcAttribute] = this._item.src;\n\n\t\t// wdg:: Append the tag AFTER setting the src, or SVG loading on iOS will fail.\n\t\tif (this._tag.parentNode == null) {\n\t\t\twindow.document.body.appendChild(this._tag);\n\t\t\tthis._addedToDOM = true;\n\t\t}\n\t};\n\n\tp.destroy = function() {\n\t\tthis._clean();\n\t\tthis._tag = null;\n\n\t\tthis.AbstractRequest_destroy();\n\t};\n\n\t// private methods\n\t/**\n\t * Handle the readyStateChange event from a tag. We need this in place of the `onload` callback (mainly SCRIPT\n\t * and LINK tags), but other cases may exist.\n\t * @method _handleReadyStateChange\n\t * @private\n\t */\n\tp._handleReadyStateChange = function () {\n\t\tclearTimeout(this._loadTimeout);\n\t\t// This is strictly for tags in browsers that do not support onload.\n\t\tvar tag = this._tag;\n\n\t\t// Complete is for old IE support.\n\t\tif (tag.readyState == \"loaded\" || tag.readyState == \"complete\") {\n\t\t\tthis._handleTagComplete();\n\t\t}\n\t};\n\n\t/**\n\t * Handle any error events from the tag.\n\t * @method _handleError\n\t * @protected\n\t */\n\tp._handleError = function() {\n\t\tthis._clean();\n\t\tthis.dispatchEvent(\"error\");\n\t};\n\n\t/**\n\t * Handle the tag's onload callback.\n\t * @method _handleTagComplete\n\t * @private\n\t */\n\tp._handleTagComplete = function () {\n\t\tthis._rawResult = this._tag;\n\t\tthis._result = this.resultFormatter && this.resultFormatter(this) || this._rawResult;\n\n\t\tthis._clean();\n\t\tthis._showTag();\n\n\t\tthis.dispatchEvent(\"complete\");\n\t};\n\n\t/**\n\t * The tag request has not loaded within the time specified in loadTimeout.\n\t * @method _handleError\n\t * @param {Object} event The XHR error event.\n\t * @private\n\t */\n\tp._handleTimeout = function () {\n\t\tthis._clean();\n\t\tthis.dispatchEvent(new createjs.Event(\"timeout\"));\n\t};\n\n\t/**\n\t * Remove event listeners, but don't destroy the request object\n\t * @method _clean\n\t * @private\n\t */\n\tp._clean = function() {\n\t\tthis._tag.onload = null;\n\t\tthis._tag.onreadystatechange = null;\n\t\tthis._tag.onerror = null;\n\t\tif (this._addedToDOM && this._tag.parentNode != null) {\n\t\t\tthis._tag.parentNode.removeChild(this._tag);\n\t\t}\n\t\tclearTimeout(this._loadTimeout);\n\t};\n\n\tp._hideTag = function() {\n\t\tthis._startTagVisibility = this._tag.style.visibility;\n\t\tthis._tag.style.visibility = \"hidden\";\n\t};\n\n\tp._showTag = function() {\n\t\tthis._tag.style.visibility = this._startTagVisibility;\n\t};\n\n\t/**\n\t * Handle a stalled audio event. The main place this happens is with HTMLAudio in Chrome when playing back audio\n\t * that is already in a load, but not complete.\n\t * @method _handleStalled\n\t * @private\n\t */\n\tp._handleStalled = function () {\n\t\t//Ignore, let the timeout take care of it. Sometimes its not really stopped.\n\t};\n\n\tcreatejs.TagRequest = createjs.promote(TagRequest, \"AbstractRequest\");\n\n}());\n\n//##############################################################################\n// MediaTagRequest.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t// constructor\n\t/**\n\t * An {{#crossLink \"TagRequest\"}}{{/crossLink}} that loads HTML tags for video and audio.\n\t * @class MediaTagRequest\n\t * @param {LoadItem} loadItem\n\t * @param {HTMLAudioElement|HTMLVideoElement} tag\n\t * @param {String} srcAttribute The tag attribute that specifies the source, such as \"src\", \"href\", etc.\n\t * @constructor\n\t */\n\tfunction MediaTagRequest(loadItem, tag, srcAttribute) {\n\t\tthis.AbstractRequest_constructor(loadItem);\n\n\t\t// protected properties\n\t\tthis._tag = tag;\n\t\tthis._tagSrcAttribute = srcAttribute;\n\t\tthis._loadedHandler = createjs.proxy(this._handleTagComplete, this);\n\t};\n\n\tvar p = createjs.extend(MediaTagRequest, createjs.TagRequest);\n\tvar s = MediaTagRequest;\n\n\t// public methods\n\tp.load = function () {\n\t\tvar sc = createjs.proxy(this._handleStalled, this);\n\t\tthis._stalledCallback = sc;\n\n\t\tvar pc = createjs.proxy(this._handleProgress, this);\n\t\tthis._handleProgress = pc;\n\n\t\tthis._tag.addEventListener(\"stalled\", sc);\n\t\tthis._tag.addEventListener(\"progress\", pc);\n\n\t\t// This will tell us when audio is buffered enough to play through, but not when its loaded.\n\t\t// The tag doesn't keep loading in Chrome once enough has buffered, and we have decided that behaviour is sufficient.\n\t\tthis._tag.addEventListener && this._tag.addEventListener(\"canplaythrough\", this._loadedHandler, false); // canplaythrough callback doesn't work in Chrome, so we use an event.\n\n\t\tthis.TagRequest_load();\n\t};\n\n\t// private methods\n\tp._handleReadyStateChange = function () {\n\t\tclearTimeout(this._loadTimeout);\n\t\t// This is strictly for tags in browsers that do not support onload.\n\t\tvar tag = this._tag;\n\n\t\t// Complete is for old IE support.\n\t\tif (tag.readyState == \"loaded\" || tag.readyState == \"complete\") {\n\t\t\tthis._handleTagComplete();\n\t\t}\n\t};\n\n\tp._handleStalled = function () {\n\t\t//Ignore, let the timeout take care of it. Sometimes its not really stopped.\n\t};\n\n\t/**\n\t * An XHR request has reported progress.\n\t * @method _handleProgress\n\t * @param {Object} event The XHR progress event.\n\t * @private\n\t */\n\tp._handleProgress = function (event) {\n\t\tif (!event || event.loaded > 0 && event.total == 0) {\n\t\t\treturn; // Sometimes we get no \"total\", so just ignore the progress event.\n\t\t}\n\n\t\tvar newEvent = new createjs.ProgressEvent(event.loaded, event.total);\n\t\tthis.dispatchEvent(newEvent);\n\t};\n\n\t// protected methods\n\tp._clean = function () {\n\t\tthis._tag.removeEventListener && this._tag.removeEventListener(\"canplaythrough\", this._loadedHandler);\n\t\tthis._tag.removeEventListener(\"stalled\", this._stalledCallback);\n\t\tthis._tag.removeEventListener(\"progress\", this._progressCallback);\n\n\t\tthis.TagRequest__clean();\n\t};\n\n\tcreatejs.MediaTagRequest = createjs.promote(MediaTagRequest, \"TagRequest\");\n\n}());\n\n//##############################################################################\n// XHRRequest.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n// constructor\n\t/**\n\t * A preloader that loads items using XHR requests, usually XMLHttpRequest. However XDomainRequests will be used\n\t * for cross-domain requests if possible, and older versions of IE fall back on to ActiveX objects when necessary.\n\t * XHR requests load the content as text or binary data, provide progress and consistent completion events, and\n\t * can be canceled during load. Note that XHR is not supported in IE 6 or earlier, and is not recommended for\n\t * cross-domain loading.\n\t * @class XHRRequest\n\t * @constructor\n\t * @param {Object} item The object that defines the file to load. Please see the {{#crossLink \"LoadQueue/loadFile\"}}{{/crossLink}}\n\t * for an overview of supported file properties.\n\t * @extends AbstractLoader\n\t */\n\tfunction XHRRequest (item) {\n\t\tthis.AbstractRequest_constructor(item);\n\n\t\t// protected properties\n\t\t/**\n\t\t * A reference to the XHR request used to load the content.\n\t\t * @property _request\n\t\t * @type {XMLHttpRequest | XDomainRequest | ActiveX.XMLHTTP}\n\t\t * @private\n\t\t */\n\t\tthis._request = null;\n\n\t\t/**\n\t\t * A manual load timeout that is used for browsers that do not support the onTimeout event on XHR (XHR level 1,\n\t\t * typically IE9).\n\t\t * @property _loadTimeout\n\t\t * @type {Number}\n\t\t * @private\n\t\t */\n\t\tthis._loadTimeout = null;\n\n\t\t/**\n\t\t * The browser's XHR (XMLHTTPRequest) version. Supported versions are 1 and 2. There is no official way to detect\n\t\t * the version, so we use capabilities to make a best guess.\n\t\t * @property _xhrLevel\n\t\t * @type {Number}\n\t\t * @default 1\n\t\t * @private\n\t\t */\n\t\tthis._xhrLevel = 1;\n\n\t\t/**\n\t\t * The response of a loaded file. This is set because it is expensive to look up constantly. This property will be\n\t\t * null until the file is loaded.\n\t\t * @property _response\n\t\t * @type {mixed}\n\t\t * @private\n\t\t */\n\t\tthis._response = null;\n\n\t\t/**\n\t\t * The response of the loaded file before it is modified. In most cases, content is converted from raw text to\n\t\t * an HTML tag or a formatted object which is set to the result property, but the developer may still\n\t\t * want to access the raw content as it was loaded.\n\t\t * @property _rawResponse\n\t\t * @type {String|Object}\n\t\t * @private\n\t\t */\n\t\tthis._rawResponse = null;\n\n\t\tthis._canceled = false;\n\n\t\t// Setup our event handlers now.\n\t\tthis._handleLoadStartProxy = createjs.proxy(this._handleLoadStart, this);\n\t\tthis._handleProgressProxy = createjs.proxy(this._handleProgress, this);\n\t\tthis._handleAbortProxy = createjs.proxy(this._handleAbort, this);\n\t\tthis._handleErrorProxy = createjs.proxy(this._handleError, this);\n\t\tthis._handleTimeoutProxy = createjs.proxy(this._handleTimeout, this);\n\t\tthis._handleLoadProxy = createjs.proxy(this._handleLoad, this);\n\t\tthis._handleReadyStateChangeProxy = createjs.proxy(this._handleReadyStateChange, this);\n\n\t\tif (!this._createXHR(item)) {\n\t\t\t//TODO: Throw error?\n\t\t}\n\t};\n\n\tvar p = createjs.extend(XHRRequest, createjs.AbstractRequest);\n\n// static properties\n\t/**\n\t * A list of XMLHTTP object IDs to try when building an ActiveX object for XHR requests in earlier versions of IE.\n\t * @property ACTIVEX_VERSIONS\n\t * @type {Array}\n\t * @since 0.4.2\n\t * @private\n\t */\n\tXHRRequest.ACTIVEX_VERSIONS = [\n\t\t\"Msxml2.XMLHTTP.6.0\",\n\t\t\"Msxml2.XMLHTTP.5.0\",\n\t\t\"Msxml2.XMLHTTP.4.0\",\n\t\t\"MSXML2.XMLHTTP.3.0\",\n\t\t\"MSXML2.XMLHTTP\",\n\t\t\"Microsoft.XMLHTTP\"\n\t];\n\n// Public methods\n\t/**\n\t * Look up the loaded result.\n\t * @method getResult\n\t * @param {Boolean} [raw=false] Return a raw result instead of a formatted result. This applies to content\n\t * loaded via XHR such as scripts, XML, CSS, and Images. If there is no raw result, the formatted result will be\n\t * returned instead.\n\t * @return {Object} A result object containing the content that was loaded, such as:\n\t * request.readyState == 4. Only the first call to this method will be processed.\n\t * @method _handleLoad\n\t * @param {Object} event The XHR load event.\n\t * @private\n\t */\n\tp._handleLoad = function (event) {\n\t\tif (this.loaded) {\n\t\t\treturn;\n\t\t}\n\t\tthis.loaded = true;\n\n\t\tvar error = this._checkError();\n\t\tif (error) {\n\t\t\tthis._handleError(error);\n\t\t\treturn;\n\t\t}\n\n\t\tthis._response = this._getResponse();\n\t\t// Convert arraybuffer back to blob\n\t\tif (this._responseType === 'arraybuffer') {\n\t\t\ttry {\n\t\t\t\tthis._response = new Blob([this._response]);\n\t\t\t} catch (e) {\n\t\t\t\t// Fallback to use BlobBuilder if Blob constructor is not supported\n\t\t\t\t// Tested on Android 2.3 ~ 4.2 and iOS5 safari\n\t\t\t\twindow.BlobBuilder = window.BlobBuilder || window.WebKitBlobBuilder || window.MozBlobBuilder || window.MSBlobBuilder;\n\t\t\t\tif (e.name === 'TypeError' && window.BlobBuilder) {\n\t\t\t\t\tvar builder = new BlobBuilder();\n\t\t\t\t\tbuilder.append(this._response);\n\t\t\t\t\tthis._response = builder.getBlob();\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tthis._clean();\n\n\t\tthis.dispatchEvent(new createjs.Event(\"complete\"));\n\t};\n\n\t/**\n\t * The XHR request has timed out. This is called by the XHR request directly, or via a setTimeout\n\t * callback.\n\t * @method _handleTimeout\n\t * @param {Object} [event] The XHR timeout event. This is occasionally null when called by the backup setTimeout.\n\t * @private\n\t */\n\tp._handleTimeout = function (event) {\n\t\tthis._clean();\n\n\t\tthis.dispatchEvent(new createjs.ErrorEvent(\"PRELOAD_TIMEOUT\", null, event));\n\t};\n\n// Protected\n\t/**\n\t * Determine if there is an error in the current load. This checks the status of the request for problem codes. Note\n\t * that this does not check for an actual response. Currently, it only checks for 404 or 0 error code.\n\t * @method _checkError\n\t * @return {int} If the request status returns an error code.\n\t * @private\n\t */\n\tp._checkError = function () {\n\t\t//LM: Probably need additional handlers here, maybe 501\n\t\tvar status = parseInt(this._request.status);\n\n\t\tswitch (status) {\n\t\t\tcase 404: // Not Found\n\t\t\tcase 0: // Not Loaded\n\t\t\t\treturn new Error(status);\n\t\t}\n\t\treturn null;\n\t};\n\n\t/**\n\t * Validate the response. Different browsers have different approaches, some of which throw errors when accessed\n\t * in other browsers. If there is no response, the _response property will remain null.\n\t * @method _getResponse\n\t * @private\n\t */\n\tp._getResponse = function () {\n\t\tif (this._response != null) {\n\t\t\treturn this._response;\n\t\t}\n\n\t\tif (this._request.response != null) {\n\t\t\treturn this._request.response;\n\t\t}\n\n\t\t// Android 2.2 uses .responseText\n\t\ttry {\n\t\t\tif (this._request.responseText != null) {\n\t\t\t\treturn this._request.responseText;\n\t\t\t}\n\t\t} catch (e) {\n\t\t}\n\n\t\t// When loading XML, IE9 does not return .response, instead it returns responseXML.xml\n\t\ttry {\n\t\t\tif (this._request.responseXML != null) {\n\t\t\t\treturn this._request.responseXML;\n\t\t\t}\n\t\t} catch (e) {\n\t\t}\n\n\t\treturn null;\n\t};\n\n\t/**\n\t * Create an XHR request. Depending on a number of factors, we get totally different results.\n\t * XDomainRequest when loading cross-domain.type property with any manifest item.\n\t *\n\t * queue.loadFile({src:\"path/to/myFile.mp3x\", type:createjs.AbstractLoader.SOUND});\n\t *\n\t * // Note that PreloadJS will not read a file extension from the query string\n\t * queue.loadFile({src:\"http://server.com/proxy?file=image.jpg\", type:createjs.AbstractLoader.IMAGE});\n\t *\n\t * Supported types are defined on the {{#crossLink \"AbstractLoader\"}}{{/crossLink}} class, and include:\n\t * rawResult property of the {{#crossLink \"LoadQueue/fileload:event\"}}{{/crossLink}}\n\t * event, or can be looked up using {{#crossLink \"LoadQueue/getResult\"}}{{/crossLink}}, passing `true` as the 2nd\n\t * argument. This is only applicable for content that has been parsed for the browser, specifically: JavaScript,\n\t * CSS, XML, SVG, and JSON objects, or anything loaded with XHR.\n\t *\n\t * var image = queue.getResult(\"image\", true); // load the binary image data loaded with XHR.\n\t *\n\t * PluginscanPlayThrough event is fired. Browsers other\n\t * than Chrome will continue to download in the background.null when they are\n\t\t * requested, contain the loaded item if it has completed, but not been dispatched to the user, and true\n\t\t * once they are complete and have been dispatched.\n\t\t * @property _loadedScripts\n\t\t * @type {Array}\n\t\t * @private\n\t\t */\n\t\tthis._loadedScripts = [];\n\n\t\t/**\n\t\t * The last progress amount. This is used to suppress duplicate progress events.\n\t\t * @property _lastProgress\n\t\t * @type {Number}\n\t\t * @private\n\t\t * @since 0.6.0\n\t\t */\n\t\tthis._lastProgress = NaN;\n\n\t};\n\n// static properties\n\t/**\n\t * The time in milliseconds to assume a load has failed. An {{#crossLink \"AbstractLoader/error:event\"}}{{/crossLink}}\n\t * event is dispatched if the timeout is reached before any data is received.\n\t * @property loadTimeout\n\t * @type {Number}\n\t * @default 8000\n\t * @static\n\t * @since 0.4.1\n\t * @deprecated In favour of {{#crossLink \"LoadItem/LOAD_TIMEOUT_DEFAULT:property}}{{/crossLink}} property.\n\t */\n\ts.loadTimeout = 8000;\n\n\t/**\n\t * The time in milliseconds to assume a load has failed.\n\t * @property LOAD_TIMEOUT\n\t * @type {Number}\n\t * @default 0\n\t * @deprecated in favor of the {{#crossLink \"LoadQueue/loadTimeout:property\"}}{{/crossLink}} property.\n\t */\n\ts.LOAD_TIMEOUT = 0;\n\n// Preload Types\n\t/**\n\t * @property BINARY\n\t * @type {String}\n\t * @default binary\n\t * @static\n\t * @deprecated Use the AbstractLoader {{#crossLink \"AbstractLoader/BINARY:property\"}}{{/crossLink}} instead.\n\t */\n\ts.BINARY = createjs.AbstractLoader.BINARY;\n\n\t/**\n\t * @property CSS\n\t * @type {String}\n\t * @default css\n\t * @static\n\t * @deprecated Use the AbstractLoader {{#crossLink \"AbstractLoader/CSS:property\"}}{{/crossLink}} instead.\n\t */\n\ts.CSS = createjs.AbstractLoader.CSS;\n\n\t/**\n\t * @property IMAGE\n\t * @type {String}\n\t * @default image\n\t * @static\n\t * @deprecated Use the AbstractLoader {{#crossLink \"AbstractLoader/CSS:property\"}}{{/crossLink}} instead.\n\t */\n\ts.IMAGE = createjs.AbstractLoader.IMAGE;\n\n\t/**\n\t * @property JAVASCRIPT\n\t * @type {String}\n\t * @default javascript\n\t * @static\n\t * @deprecated Use the AbstractLoader {{#crossLink \"AbstractLoader/JAVASCRIPT:property\"}}{{/crossLink}} instead.\n\t */\n\ts.JAVASCRIPT = createjs.AbstractLoader.JAVASCRIPT;\n\n\t/**\n\t * @property JSON\n\t * @type {String}\n\t * @default json\n\t * @static\n\t * @deprecated Use the AbstractLoader {{#crossLink \"AbstractLoader/JSON:property\"}}{{/crossLink}} instead.\n\t */\n\ts.JSON = createjs.AbstractLoader.JSON;\n\n\t/**\n\t * @property JSONP\n\t * @type {String}\n\t * @default jsonp\n\t * @static\n\t * @deprecated Use the AbstractLoader {{#crossLink \"AbstractLoader/JSONP:property\"}}{{/crossLink}} instead.\n\t */\n\ts.JSONP = createjs.AbstractLoader.JSONP;\n\n\t/**\n\t * @property MANIFEST\n\t * @type {String}\n\t * @default manifest\n\t * @static\n\t * @since 0.4.1\n\t * @deprecated Use the AbstractLoader {{#crossLink \"AbstractLoader/MANIFEST:property\"}}{{/crossLink}} instead.\n\t */\n\ts.MANIFEST = createjs.AbstractLoader.MANIFEST;\n\n\t/**\n\t * @property SOUND\n\t * @type {String}\n\t * @default sound\n\t * @static\n\t * @deprecated Use the AbstractLoader {{#crossLink \"AbstractLoader/JAVASCRIPT:property\"}}{{/crossLink}} instead.\n\t */\n\ts.SOUND = createjs.AbstractLoader.SOUND;\n\n\t/**\n\t * @property VIDEO\n\t * @type {String}\n\t * @default video\n\t * @static\n\t * @deprecated Use the AbstractLoader {{#crossLink \"AbstractLoader/JAVASCRIPT:property\"}}{{/crossLink}} instead.\n\t */\n\ts.VIDEO = createjs.AbstractLoader.VIDEO;\n\n\t/**\n\t * @property SVG\n\t * @type {String}\n\t * @default svg\n\t * @static\n\t * @deprecated Use the AbstractLoader {{#crossLink \"AbstractLoader/SVG:property\"}}{{/crossLink}} instead.\n\t */\n\ts.SVG = createjs.AbstractLoader.SVG;\n\n\t/**\n\t * @property TEXT\n\t * @type {String}\n\t * @default text\n\t * @static\n\t * @deprecated Use the AbstractLoader {{#crossLink \"AbstractLoader/TEXT:property\"}}{{/crossLink}} instead.\n\t */\n\ts.TEXT = createjs.AbstractLoader.TEXT;\n\n\t/**\n\t * @property XML\n\t * @type {String}\n\t * @default xml\n\t * @static\n\t * @deprecated Use the AbstractLoader {{#crossLink \"AbstractLoader/XML:property\"}}{{/crossLink}} instead.\n\t */\n\ts.XML = createjs.AbstractLoader.XML;\n\n\t/**\n\t * @property POST\n\t * @type {string}\n\t * @deprecated Use the AbstractLoader {{#crossLink \"AbstractLoader/POST:property\"}}{{/crossLink}} instead.\n\t */\n\ts.POST = createjs.AbstractLoader.POST;\n\n\t/**\n\t * @property GET\n\t * @type {string}\n\t * @deprecated Use the AbstractLoader {{#crossLink \"AbstractLoader/GET:property\"}}{{/crossLink}} instead.\n\t */\n\ts.GET = createjs.AbstractLoader.GET;\n\n// events\n\t/**\n\t * This event is fired when an individual file has loaded, and been processed.\n\t * @event fileload\n\t * @param {Object} target The object that dispatched the event.\n\t * @param {String} type The event type.\n\t * @param {Object} item The file item which was specified in the {{#crossLink \"LoadQueue/loadFile\"}}{{/crossLink}}\n\t * or {{#crossLink \"LoadQueue/loadManifest\"}}{{/crossLink}} call. If only a string path or tag was specified, the\n\t * object will contain that value as a `src` property.\n\t * @param {Object} result The HTML tag or parsed result of the loaded item.\n\t * @param {Object} rawResult The unprocessed result, usually the raw text or binary data before it is converted\n\t * to a usable object.\n\t * @since 0.3.0\n\t */\n\n\t/**\n\t * This {{#crossLink \"ProgressEvent\"}}{{/crossLink}} that is fired when an an individual file's progress changes.\n\t * @event fileprogress\n\t * @since 0.3.0\n\t */\n\n\t/**\n\t * This event is fired when an individual file starts to load.\n\t * @event filestart\n\t * @param {Object} The object that dispatched the event.\n\t * @param {String} type The event type.\n\t * @param {Object} item The file item which was specified in the {{#crossLink \"LoadQueue/loadFile\"}}{{/crossLink}}\n\t * or {{#crossLink \"LoadQueue/loadManifest\"}}{{/crossLink}} call. If only a string path or tag was specified, the\n\t * object will contain that value as a property.\n\t */\n\n\t/**\n\t * Although it extends {{#crossLink \"AbstractLoader\"}}{{/crossLink}}, the `initialize` event is never fired from\n\t * a LoadQueue instance.\n\t * @event initialize\n\t * @private\n\t */\n\n// public methods\n\t/**\n\t * Register a custom loaders class. New loaders are given precedence over loaders added earlier and default loaders.\n\t * It is recommended that loaders extend {{#crossLink \"AbstractLoader\"}}{{/crossLink}}. Loaders can only be added\n\t * once, and will be prepended to the list of available loaders.\n\t * @method registerLoader\n\t * @param {Function|AbstractLoader} loader The AbstractLoader class to add.\n\t * @since 0.6.0\n\t */\n\tp.registerLoader = function (loader) {\n\t\tif (!loader || !loader.canLoadItem) {\n\t\t\tthrow new Error(\"loader is of an incorrect type.\");\n\t\t} else if (this._availableLoaders.indexOf(loader) != -1) {\n\t\t\tthrow new Error(\"loader already exists.\"); //LM: Maybe just silently fail here\n\t\t}\n\n\t\tthis._availableLoaders.unshift(loader);\n\t};\n\n\t/**\n\t * Remove a custom loader added using {{#crossLink \"registerLoader\"}}{{/crossLink}}. Only custom loaders can be\n\t * unregistered, the default loaders will always be available.\n\t * @method unregisterLoader\n\t * @param {Function|AbstractLoader} loader The AbstractLoader class to remove\n\t */\n\tp.unregisterLoader = function (loader) {\n\t\tvar idx = this._availableLoaders.indexOf(loader);\n\t\tif (idx != -1 && idx < this._defaultLoaderLength - 1) {\n\t\t\tthis._availableLoaders.splice(idx, 1);\n\t\t}\n\t};\n\n\t/**\n\t * @method setUseXHR\n\t * @param {Boolean} value The new useXHR value to set.\n\t * @return {Boolean} The new useXHR value. If XHR is not supported by the browser, this will return false, even if\n\t * the provided value argument was true.\n\t * @since 0.3.0\n\t * @deprecated use the {{#crossLink \"LoadQueue/preferXHR:property\"}}{{/crossLink}} property, or the\n\t * {{#crossLink \"LoadQueue/setUseXHR\"}}{{/crossLink}} method instead.\n\t */\n\tp.setUseXHR = function (value) {\n\t\treturn this.setPreferXHR(value);\n\t};\n\n\t/**\n\t * Change the {{#crossLink \"preferXHR:property\"}}{{/crossLink}} value. Note that if this is set to `true`, it may\n\t * fail, or be ignored depending on the browser's capabilities and the load type.\n\t * @method setPreferXHR\n\t * @param {Boolean} value\n\t * @returns {Boolean} The value of {{#crossLink \"preferXHR\"}}{{/crossLink}} that was successfully set.\n\t * @since 0.6.0\n\t */\n\tp.setPreferXHR = function (value) {\n\t\t// Determine if we can use XHR. XHR defaults to TRUE, but the browser may not support it.\n\t\t//TODO: Should we be checking for the other XHR types? Might have to do a try/catch on the different types similar to createXHR.\n\t\tthis.preferXHR = (value != false && window.XMLHttpRequest != null);\n\t\treturn this.preferXHR;\n\t};\n\n\t/**\n\t * Stops all queued and loading items, and clears the queue. This also removes all internal references to loaded\n\t * content, and allows the queue to be used again.\n\t * @method removeAll\n\t * @since 0.3.0\n\t */\n\tp.removeAll = function () {\n\t\tthis.remove();\n\t};\n\n\t/**\n\t * Stops an item from being loaded, and removes it from the queue. If nothing is passed, all items are removed.\n\t * This also removes internal references to loaded item(s).\n\t *\n\t * Example
\n\t *\n\t * queue.loadManifest([\n\t * {src:\"test.png\", id:\"png\"},\n\t * {src:\"test.jpg\", id:\"jpg\"},\n\t * {src:\"test.mp3\", id:\"mp3\"}\n\t * ]);\n\t * queue.remove(\"png\"); // Single item by ID\n\t * queue.remove(\"png\", \"test.jpg\"); // Items as arguments. Mixed id and src.\n\t * queue.remove([\"test.png\", \"jpg\"]); // Items in an Array. Mixed id and src.\n\t *\n\t * @method remove\n\t * @param {String | Array} idsOrUrls* The id or ids to remove from this queue. You can pass an item, an array of\n\t * items, or multiple items as arguments.\n\t * @since 0.3.0\n\t */\n\tp.remove = function (idsOrUrls) {\n\t\tvar args = null;\n\n\t\tif (idsOrUrls && !Array.isArray(idsOrUrls)) {\n\t\t\targs = [idsOrUrls];\n\t\t} else if (idsOrUrls) {\n\t\t\targs = idsOrUrls;\n\t\t} else if (arguments.length > 0) {\n\t\t\treturn;\n\t\t}\n\n\t\tvar itemsWereRemoved = false;\n\n\t\t// Destroy everything\n\t\tif (!args) {\n\t\t\tthis.close();\n\t\t\tfor (var n in this._loadItemsById) {\n\t\t\t\tthis._disposeItem(this._loadItemsById[n]);\n\t\t\t}\n\t\t\tthis.init(this.preferXHR, this._basePath);\n\n\t\t\t// Remove specific items\n\t\t} else {\n\t\t\twhile (args.length) {\n\t\t\t\tvar item = args.pop();\n\t\t\t\tvar r = this.getResult(item);\n\n\t\t\t\t//Remove from the main load Queue\n\t\t\t\tfor (i = this._loadQueue.length - 1; i >= 0; i--) {\n\t\t\t\t\tloadItem = this._loadQueue[i].getItem();\n\t\t\t\t\tif (loadItem.id == item || loadItem.src == item) {\n\t\t\t\t\t\tthis._loadQueue.splice(i, 1)[0].cancel();\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\t//Remove from the backup queue\n\t\t\t\tfor (i = this._loadQueueBackup.length - 1; i >= 0; i--) {\n\t\t\t\t\tloadItem = this._loadQueueBackup[i].getItem();\n\t\t\t\t\tif (loadItem.id == item || loadItem.src == item) {\n\t\t\t\t\t\tthis._loadQueueBackup.splice(i, 1)[0].cancel();\n\t\t\t\t\t\tbreak;\n\t\t\t\t\t}\n\t\t\t\t}\n\n\t\t\t\tif (r) {\n\t\t\t\t\tthis._disposeItem(this.getItem(item));\n\t\t\t\t} else {\n\t\t\t\t\tfor (var i = this._currentLoads.length - 1; i >= 0; i--) {\n\t\t\t\t\t\tvar loadItem = this._currentLoads[i].getItem();\n\t\t\t\t\t\tif (loadItem.id == item || loadItem.src == item) {\n\t\t\t\t\t\t\tthis._currentLoads.splice(i, 1)[0].cancel();\n\t\t\t\t\t\t\titemsWereRemoved = true;\n\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\n\t\t\t// If this was called during a load, try to load the next item.\n\t\t\tif (itemsWereRemoved) {\n\t\t\t\tthis._loadNext();\n\t\t\t}\n\t\t}\n\t};\n\n\t/**\n\t * Stops all open loads, destroys any loaded items, and resets the queue, so all items can\n\t * be reloaded again by calling {{#crossLink \"AbstractLoader/load\"}}{{/crossLink}}. Items are not removed from the\n\t * queue. To remove items use the {{#crossLink \"LoadQueue/remove\"}}{{/crossLink}} or\n\t * {{#crossLink \"LoadQueue/removeAll\"}}{{/crossLink}} method.\n\t * @method reset\n\t * @since 0.3.0\n\t */\n\tp.reset = function () {\n\t\tthis.close();\n\t\tfor (var n in this._loadItemsById) {\n\t\t\tthis._disposeItem(this._loadItemsById[n]);\n\t\t}\n\n\t\t//Reset the queue to its start state\n\t\tvar a = [];\n\t\tfor (var i = 0, l = this._loadQueueBackup.length; i < l; i++) {\n\t\t\ta.push(this._loadQueueBackup[i].getItem());\n\t\t}\n\n\t\tthis.loadManifest(a, false);\n\t};\n\n\t/**\n\t * Register a plugin. Plugins can map to load types (sound, image, etc), or specific extensions (png, mp3, etc).\n\t * Currently, only one plugin can exist per type/extension.\n\t *\n\t * When a plugin is installed, a getPreloadHandlers() method will be called on it. For more information\n\t * on this method, check out the {{#crossLink \"SamplePlugin/getPreloadHandlers\"}}{{/crossLink}} method in the\n\t * {{#crossLink \"SamplePlugin\"}}{{/crossLink}} class.\n\t *\n\t * Before a file is loaded, a matching plugin has an opportunity to modify the load. If a `callback` is returned\n\t * from the {{#crossLink \"SamplePlugin/getPreloadHandlers\"}}{{/crossLink}} method, it will be invoked first, and its\n\t * result may cancel or modify the item. The callback method can also return a `completeHandler` to be fired when\n\t * the file is loaded, or a `tag` object, which will manage the actual download. For more information on these\n\t * methods, check out the {{#crossLink \"SamplePlugin/preloadHandler\"}}{{/crossLink}} and {{#crossLink \"SamplePlugin/fileLoadHandler\"}}{{/crossLink}}\n\t * methods on the {{#crossLink \"SamplePlugin\"}}{{/crossLink}}.\n\t *\n\t * @method installPlugin\n\t * @param {Function} plugin The plugin class to install.\n\t */\n\tp.installPlugin = function (plugin) {\n\t\tif (plugin == null) {\n\t\t\treturn;\n\t\t}\n\n\t\tif (plugin.getPreloadHandlers != null) {\n\t\t\tthis._plugins.push(plugin);\n\t\t\tvar map = plugin.getPreloadHandlers();\n\t\t\tmap.scope = plugin;\n\n\t\t\tif (map.types != null) {\n\t\t\t\tfor (var i = 0, l = map.types.length; i < l; i++) {\n\t\t\t\t\tthis._typeCallbacks[map.types[i]] = map;\n\t\t\t\t}\n\t\t\t}\n\n\t\t\tif (map.extensions != null) {\n\t\t\t\tfor (i = 0, l = map.extensions.length; i < l; i++) {\n\t\t\t\t\tthis._extensionCallbacks[map.extensions[i]] = map;\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t};\n\n\t/**\n\t * Set the maximum number of concurrent connections. Note that browsers and servers may have a built-in maximum\n\t * number of open connections, so any additional connections may remain in a pending state until the browser\n\t * opens the connection. When loading scripts using tags, and when {{#crossLink \"LoadQueue/maintainScriptOrder:property\"}}{{/crossLink}}\n\t * is `true`, only one script is loaded at a time due to browser limitations.\n\t *\n\t * Example
\n\t *\n\t * var queue = new createjs.LoadQueue();\n\t * queue.setMaxConnections(10); // Allow 10 concurrent loads\n\t *\n\t * @method setMaxConnections\n\t * @param {Number} value The number of concurrent loads to allow. By default, only a single connection per LoadQueue\n\t * is open at any time.\n\t */\n\tp.setMaxConnections = function (value) {\n\t\tthis._maxConnections = value;\n\t\tif (!this._paused && this._loadQueue.length > 0) {\n\t\t\tthis._loadNext();\n\t\t}\n\t};\n\n\t/**\n\t * Load a single file. To add multiple files at once, use the {{#crossLink \"LoadQueue/loadManifest\"}}{{/crossLink}}\n\t * method.\n\t *\n\t * Files are always appended to the current queue, so this method can be used multiple times to add files.\n\t * To clear the queue first, use the {{#crossLink \"AbstractLoader/close\"}}{{/crossLink}} method.\n\t * @method loadFile\n\t * @param {LoadItem|Object|String} file The file object or path to load. A file can be either\n\t * \n\t * - A {{#crossLink \"LoadItem\"}}{{/crossLink}} instance
\n\t * - An object containing properties defined by {{#crossLink \"LoadItem\"}}{{/crossLink}}
\n\t * - OR A string path to a resource. Note that this kind of load item will be converted to a {{#crossLink \"LoadItem\"}}{{/crossLink}}\n\t * in the background.
\n\t *
\n\t * @param {Boolean} [loadNow=true] Kick off an immediate load (true) or wait for a load call (false). The default\n\t * value is true. If the queue is paused using {{#crossLink \"LoadQueue/setPaused\"}}{{/crossLink}}, and the value is\n\t * `true`, the queue will resume automatically.\n\t * @param {String} [basePath] A base path that will be prepended to each file. The basePath argument overrides the\n\t * path specified in the constructor. Note that if you load a manifest using a file of type {{#crossLink \"AbstractLoader/MANIFEST:property\"}}{{/crossLink}},\n\t * its files will NOT use the basePath parameter. The basePath parameter is deprecated.\n\t * This parameter will be removed in a future version. Please either use the `basePath` parameter in the LoadQueue\n\t * constructor, or a `path` property in a manifest definition.\n\t */\n\tp.loadFile = function (file, loadNow, basePath) {\n\t\tif (file == null) {\n\t\t\tvar event = new createjs.ErrorEvent(\"PRELOAD_NO_FILE\");\n\t\t\tthis._sendError(event);\n\t\t\treturn;\n\t\t}\n\t\tthis._addItem(file, null, basePath);\n\n\t\tif (loadNow !== false) {\n\t\t\tthis.setPaused(false);\n\t\t} else {\n\t\t\tthis.setPaused(true);\n\t\t}\n\t};\n\n\t/**\n\t * Load an array of files. To load a single file, use the {{#crossLink \"LoadQueue/loadFile\"}}{{/crossLink}} method.\n\t * The files in the manifest are requested in the same order, but may complete in a different order if the max\n\t * connections are set above 1 using {{#crossLink \"LoadQueue/setMaxConnections\"}}{{/crossLink}}. Scripts will load\n\t * in the right order as long as {{#crossLink \"LoadQueue/maintainScriptOrder\"}}{{/crossLink}} is true (which is\n\t * default).\n\t *\n\t * Files are always appended to the current queue, so this method can be used multiple times to add files.\n\t * To clear the queue first, use the {{#crossLink \"AbstractLoader/close\"}}{{/crossLink}} method.\n\t * @method loadManifest\n\t * @param {Array|String|Object} manifest An list of files to load. The loadManifest call supports four types of\n\t * manifests:\n\t * \n\t * - A string path, which points to a manifest file, which is a JSON file that contains a \"manifest\" property,\n\t * which defines the list of files to load, and can optionally contain a \"path\" property, which will be\n\t * prepended to each file in the list.
\n\t * - An object which defines a \"src\", which is a JSON or JSONP file. A \"callback\" can be defined for JSONP\n\t * file. The JSON/JSONP file should contain a \"manifest\" property, which defines the list of files to load,\n\t * and can optionally contain a \"path\" property, which will be prepended to each file in the list.
\n\t * - An object which contains a \"manifest\" property, which defines the list of files to load, and can\n\t * optionally contain a \"path\" property, which will be prepended to each file in the list.
\n\t * - An Array of files to load.
\n\t *
\n\t *\n\t * Each \"file\" in a manifest can be either:\n\t * \n\t * - A {{#crossLink \"LoadItem\"}}{{/crossLink}} instance
\n\t * - An object containing properties defined by {{#crossLink \"LoadItem\"}}{{/crossLink}}
\n\t * - OR A string path to a resource. Note that this kind of load item will be converted to a {{#crossLink \"LoadItem\"}}{{/crossLink}}\n\t * in the background.
\n\t *
\n\t *\n\t * @param {Boolean} [loadNow=true] Kick off an immediate load (true) or wait for a load call (false). The default\n\t * value is true. If the queue is paused using {{#crossLink \"LoadQueue/setPaused\"}}{{/crossLink}} and this value is\n\t * `true`, the queue will resume automatically.\n\t * @param {String} [basePath] A base path that will be prepended to each file. The basePath argument overrides the\n\t * path specified in the constructor. Note that if you load a manifest using a file of type {{#crossLink \"LoadQueue/MANIFEST:property\"}}{{/crossLink}},\n\t * its files will NOT use the basePath parameter. The basePath parameter is deprecated.\n\t * This parameter will be removed in a future version. Please either use the `basePath` parameter in the LoadQueue\n\t * constructor, or a `path` property in a manifest definition.\n\t */\n\tp.loadManifest = function (manifest, loadNow, basePath) {\n\t\tvar fileList = null;\n\t\tvar path = null;\n\n\t\t// Array-based list of items\n\t\tif (Array.isArray(manifest)) {\n\t\t\tif (manifest.length == 0) {\n\t\t\t\tvar event = new createjs.ErrorEvent(\"PRELOAD_MANIFEST_EMPTY\");\n\t\t\t\tthis._sendError(event);\n\t\t\t\treturn;\n\t\t\t}\n\t\t\tfileList = manifest;\n\n\t\t\t// String-based. Only file manifests can be specified this way. Any other types will cause an error when loaded.\n\t\t} else if (typeof(manifest) === \"string\") {\n\t\t\tfileList = [\n\t\t\t\t{\n\t\t\t\t\tsrc: manifest,\n\t\t\t\t\ttype: s.MANIFEST\n\t\t\t\t}\n\t\t\t];\n\n\t\t} else if (typeof(manifest) == \"object\") {\n\n\t\t\t// An object that defines a manifest path\n\t\t\tif (manifest.src !== undefined) {\n\t\t\t\tif (manifest.type == null) {\n\t\t\t\t\tmanifest.type = s.MANIFEST;\n\t\t\t\t} else if (manifest.type != s.MANIFEST) {\n\t\t\t\t\tvar event = new createjs.ErrorEvent(\"PRELOAD_MANIFEST_TYPE\");\n\t\t\t\t\tthis._sendError(event);\n\t\t\t\t}\n\t\t\t\tfileList = [manifest];\n\n\t\t\t\t// An object that defines a manifest\n\t\t\t} else if (manifest.manifest !== undefined) {\n\t\t\t\tfileList = manifest.manifest;\n\t\t\t\tpath = manifest.path;\n\t\t\t}\n\n\t\t\t// Unsupported. This will throw an error.\n\t\t} else {\n\t\t\tvar event = new createjs.ErrorEvent(\"PRELOAD_MANIFEST_NULL\");\n\t\t\tthis._sendError(event);\n\t\t\treturn;\n\t\t}\n\n\t\tfor (var i = 0, l = fileList.length; i < l; i++) {\n\t\t\tthis._addItem(fileList[i], path, basePath);\n\t\t}\n\n\t\tif (loadNow !== false) {\n\t\t\tthis.setPaused(false);\n\t\t} else {\n\t\t\tthis.setPaused(true);\n\t\t}\n\n\t};\n\n\t/**\n\t * Start a LoadQueue that was created, but not automatically started.\n\t * @method load\n\t */\n\tp.load = function () {\n\t\tthis.setPaused(false);\n\t};\n\n\t/**\n\t * Look up a {{#crossLink \"LoadItem\"}}{{/crossLink}} using either the \"id\" or \"src\" that was specified when loading it. Note that if no \"id\" was\n\t * supplied with the load item, the ID will be the \"src\", including a `path` property defined by a manifest. The\n\t * `basePath` will not be part of the ID.\n\t * @method getItem\n\t * @param {String} value The id or src of the load item.\n\t * @return {Object} The load item that was initially requested using {{#crossLink \"LoadQueue/loadFile\"}}{{/crossLink}}\n\t * or {{#crossLink \"LoadQueue/loadManifest\"}}{{/crossLink}}. This object is also returned via the {{#crossLink \"LoadQueue/fileload:event\"}}{{/crossLink}}\n\t * event as the `item` parameter.\n\t */\n\tp.getItem = function (value) {\n\t\treturn this._loadItemsById[value] || this._loadItemsBySrc[value];\n\t};\n\n\t/**\n\t * Look up a loaded result using either the \"id\" or \"src\" that was specified when loading it. Note that if no \"id\"\n\t * was supplied with the load item, the ID will be the \"src\", including a `path` property defined by a manifest. The\n\t * `basePath` will not be part of the ID.\n\t * @method getResult\n\t * @param {String} value The id or src of the load item.\n\t * @param {Boolean} [rawResult=false] Return a raw result instead of a formatted result. This applies to content\n\t * loaded via XHR such as scripts, XML, CSS, and Images. If there is no raw result, the formatted result will be\n\t * returned instead.\n\t * @return {Object} A result object containing the content that was loaded, such as:\n\t * \n\t * - An image tag (<image />) for images
\n\t * - A script tag for JavaScript (<script />). Note that scripts are automatically added to the HTML\n\t * DOM.
\n\t * - A style tag for CSS (<style /> or <link >)
\n\t * - Raw text for TEXT
\n\t * - A formatted JavaScript object defined by JSON
\n\t * - An XML document
\n\t * - A binary arraybuffer loaded by XHR
\n\t * - An audio tag (<audio >) for HTML audio. Note that it is recommended to use SoundJS APIs to play\n\t * loaded audio. Specifically, audio loaded by Flash and WebAudio will return a loader object using this method\n\t * which can not be used to play audio back.
\n\t *
\n\t * This object is also returned via the {{#crossLink \"LoadQueue/fileload:event\"}}{{/crossLink}} event as the 'item`\n\t * parameter. Note that if a raw result is requested, but not found, the result will be returned instead.\n\t */\n\tp.getResult = function (value, rawResult) {\n\t\tvar item = this._loadItemsById[value] || this._loadItemsBySrc[value];\n\t\tif (item == null) {\n\t\t\treturn null;\n\t\t}\n\t\tvar id = item.id;\n\t\tif (rawResult && this._loadedRawResults[id]) {\n\t\t\treturn this._loadedRawResults[id];\n\t\t}\n\t\treturn this._loadedResults[id];\n\t};\n\n\t/**\n\t * Generate an list of items loaded by this queue.\n\t * @method getItems\n\t * @param {Boolean} loaded Determines if only items that have been loaded should be returned. If false, in-progress\n\t * and failed load items will also be included.\n\t * @returns {Array} A list of objects that have been loaded. Each item includes the {{#crossLink \"LoadItem\"}}{{/crossLink}},\n\t * result, and rawResult.\n\t * @since 0.6.0\n\t */\n\tp.getItems = function (loaded) {\n\t\tvar arr = [];\n\t\tfor (var n in this._loadItemsById) {\n\t\t\tvar item = this._loadItemsById[n];\n\t\t\tvar result = this.getResult(n);\n\t\t\tif (loaded === true && result == null) {\n\t\t\t\tcontinue;\n\t\t\t}\n\t\t\tarr.push({\n\t\t\t\titem: item,\n\t\t\t\tresult: result,\n\t\t\t\trawResult: this.getResult(n, true)\n\t\t\t});\n\t\t}\n\t\treturn arr;\n\t};\n\n\t/**\n\t * Pause or resume the current load. Active loads will not be cancelled, but the next items in the queue will not\n\t * be processed when active loads complete. LoadQueues are not paused by default.\n\t *\n\t * Note that if new items are added to the queue using {{#crossLink \"LoadQueue/loadFile\"}}{{/crossLink}} or\n\t * {{#crossLink \"LoadQueue/loadManifest\"}}{{/crossLink}}, a paused queue will be resumed, unless the `loadNow`\n\t * argument is `false`.\n\t * @method setPaused\n\t * @param {Boolean} value Whether the queue should be paused or not.\n\t */\n\tp.setPaused = function (value) {\n\t\tthis._paused = value;\n\t\tif (!this._paused) {\n\t\t\tthis._loadNext();\n\t\t}\n\t};\n\n\t/**\n\t * Close the active queue. Closing a queue completely empties the queue, and prevents any remaining items from\n\t * starting to download. Note that currently any active loads will remain open, and events may be processed.\n\t *\n\t * To stop and restart a queue, use the {{#crossLink \"LoadQueue/setPaused\"}}{{/crossLink}} method instead.\n\t * @method close\n\t */\n\tp.close = function () {\n\t\twhile (this._currentLoads.length) {\n\t\t\tthis._currentLoads.pop().cancel();\n\t\t}\n\t\tthis._scriptOrder.length = 0;\n\t\tthis._loadedScripts.length = 0;\n\t\tthis.loadStartWasDispatched = false;\n\t\tthis._itemCount = 0;\n\t\tthis._lastProgress = NaN;\n\t};\n\n// protected methods\n\t/**\n\t * Add an item to the queue. Items are formatted into a usable object containing all the properties necessary to\n\t * load the content. The load queue is populated with the loader instance that handles preloading, and not the load\n\t * item that was passed in by the user. To look up the load item by id or src, use the {{#crossLink \"LoadQueue.getItem\"}}{{/crossLink}}\n\t * method.\n\t * @method _addItem\n\t * @param {String|Object} value The item to add to the queue.\n\t * @param {String} [path] An optional path prepended to the `src`. The path will only be prepended if the src is\n\t * relative, and does not start with a protocol such as `http://`, or a path like `../`. If the LoadQueue was\n\t * provided a {{#crossLink \"_basePath\"}}{{/crossLink}}, then it will optionally be prepended after.\n\t * @param {String} [basePath] DeprecatedAn optional basePath passed into a {{#crossLink \"LoadQueue/loadManifest\"}}{{/crossLink}}\n\t * or {{#crossLink \"LoadQueue/loadFile\"}}{{/crossLink}} call. This parameter will be removed in a future tagged\n\t * version.\n\t * @private\n\t */\n\tp._addItem = function (value, path, basePath) {\n\t\tvar item = this._createLoadItem(value, path, basePath); // basePath and manifest path are added to the src.\n\t\tif (item == null) {\n\t\t\treturn;\n\t\t} // Sometimes plugins or types should be skipped.\n\t\tvar loader = this._createLoader(item);\n\t\tif (loader != null) {\n\t\t\tif (\"plugins\" in loader) {\n\t\t\t\tloader.plugins = this._plugins;\n\t\t\t}\n\t\t\titem._loader = loader;\n\t\t\tthis._loadQueue.push(loader);\n\t\t\tthis._loadQueueBackup.push(loader);\n\n\t\t\tthis._numItems++;\n\t\t\tthis._updateProgress();\n\n\t\t\t// Only worry about script order when using XHR to load scripts. Tags are only loading one at a time.\n\t\t\tif ((this.maintainScriptOrder\n\t\t\t\t\t&& item.type == createjs.LoadQueue.JAVASCRIPT\n\t\t\t\t\t\t//&& loader instanceof createjs.XHRLoader //NOTE: Have to track all JS files this way\n\t\t\t\t\t)\n\t\t\t\t\t|| item.maintainOrder === true) {\n\t\t\t\tthis._scriptOrder.push(item);\n\t\t\t\tthis._loadedScripts.push(null);\n\t\t\t}\n\t\t}\n\t};\n\n\t/**\n\t * Create a refined {{#crossLink \"LoadItem\"}}{{/crossLink}}, which contains all the required properties. The type of\n\t * item is determined by browser support, requirements based on the file type, and developer settings. For example,\n\t * XHR is only used for file types that support it in new browsers.\n\t *\n\t * Before the item is returned, any plugins registered to handle the type or extension will be fired, which may\n\t * alter the load item.\n\t * @method _createLoadItem\n\t * @param {String | Object | HTMLAudioElement | HTMLImageElement} value The item that needs to be preloaded.\n\t * @param {String} [path] A path to prepend to the item's source. Sources beginning with http:// or similar will\n\t * not receive a path. Since PreloadJS 0.4.1, the src will be modified to include the `path` and {{#crossLink \"LoadQueue/_basePath:property\"}}{{/crossLink}}\n\t * when it is added.\n\t * @param {String} [basePath] Deprectated A base path to prepend to the items source in addition to\n\t * the path argument.\n\t * @return {Object} The loader instance that will be used.\n\t * @private\n\t */\n\tp._createLoadItem = function (value, path, basePath) {\n\t\tvar item = createjs.LoadItem.create(value);\n\t\tif (item == null) {\n\t\t\treturn null;\n\t\t}\n\n\t\tvar bp = \"\"; // Store the generated basePath\n\t\tvar useBasePath = basePath || this._basePath;\n\n\t\tif (item.src instanceof Object) {\n\t\t\tif (!item.type) {\n\t\t\t\treturn null;\n\t\t\t} // the the src is an object, type is required to pass off to plugin\n\t\t\tif (path) {\n\t\t\t\tbp = path;\n\t\t\t\tvar pathMatch = createjs.RequestUtils.parseURI(path);\n\t\t\t\t// Also append basePath\n\t\t\t\tif (useBasePath != null && !pathMatch.absolute && !pathMatch.relative) {\n\t\t\t\t\tbp = useBasePath + bp;\n\t\t\t\t}\n\t\t\t} else if (useBasePath != null) {\n\t\t\t\tbp = useBasePath;\n\t\t\t}\n\t\t} else {\n\t\t\t// Determine Extension, etc.\n\t\t\tvar match = createjs.RequestUtils.parseURI(item.src);\n\t\t\tif (match.extension) {\n\t\t\t\titem.ext = match.extension;\n\t\t\t}\n\t\t\tif (item.type == null) {\n\t\t\t\titem.type = createjs.RequestUtils.getTypeByExtension(item.ext);\n\t\t\t}\n\n\t\t\t// Inject path & basePath\n\t\t\tvar autoId = item.src;\n\t\t\tif (!match.absolute && !match.relative) {\n\t\t\t\tif (path) {\n\t\t\t\t\tbp = path;\n\t\t\t\t\tvar pathMatch = createjs.RequestUtils.parseURI(path);\n\t\t\t\t\tautoId = path + autoId;\n\t\t\t\t\t// Also append basePath\n\t\t\t\t\tif (useBasePath != null && !pathMatch.absolute && !pathMatch.relative) {\n\t\t\t\t\t\tbp = useBasePath + bp;\n\t\t\t\t\t}\n\t\t\t\t} else if (useBasePath != null) {\n\t\t\t\t\tbp = useBasePath;\n\t\t\t\t}\n\t\t\t}\n\t\t\titem.src = bp + item.src;\n\t\t}\n\t\titem.path = bp;\n\n\t\t// If there's no id, set one now.\n\t\tif (item.id === undefined || item.id === null || item.id === \"\") {\n\t\t\titem.id = autoId;\n\t\t}\n\n\t\t// Give plugins a chance to modify the loadItem:\n\t\tvar customHandler = this._typeCallbacks[item.type] || this._extensionCallbacks[item.ext];\n\t\tif (customHandler) {\n\t\t\t// Plugins are now passed both the full source, as well as a combined path+basePath (appropriately)\n\t\t\tvar result = customHandler.callback.call(customHandler.scope, item, this);\n\n\t\t\t// The plugin will handle the load, or has canceled it. Ignore it.\n\t\t\tif (result === false) {\n\t\t\t\treturn null;\n\n\t\t\t\t// Load as normal:\n\t\t\t} else if (result === true) {\n\t\t\t\t// Do Nothing\n\n\t\t\t\t// Result is a loader class:\n\t\t\t} else if (result != null) {\n\t\t\t\titem._loader = result;\n\t\t\t}\n\n\t\t\t// Update the extension in case the type changed:\n\t\t\tmatch = createjs.RequestUtils.parseURI(item.src);\n\t\t\tif (match.extension != null) {\n\t\t\t\titem.ext = match.extension;\n\t\t\t}\n\t\t}\n\n\t\t// Store the item for lookup. This also helps clean-up later.\n\t\tthis._loadItemsById[item.id] = item;\n\t\tthis._loadItemsBySrc[item.src] = item;\n\n\t\tif (item.crossOrigin == null) {\n\t\t\titem.crossOrigin = this._crossOrigin;\n\t\t}\n\n\t\treturn item;\n\t};\n\n\t/**\n\t * Create a loader for a load item.\n\t * @method _createLoader\n\t * @param {Object} item A formatted load item that can be used to generate a loader.\n\t * @return {AbstractLoader} A loader that can be used to load content.\n\t * @private\n\t */\n\tp._createLoader = function (item) {\n\t\tif (item._loader != null) { // A plugin already specified a loader\n\t\t\treturn item._loader;\n\t\t}\n\n\t\t// Initially, try and use the provided/supported XHR mode:\n\t\tvar preferXHR = this.preferXHR;\n\n\t\tfor (var i = 0; i < this._availableLoaders.length; i++) {\n\t\t\tvar loader = this._availableLoaders[i];\n\t\t\tif (loader && loader.canLoadItem(item)) {\n\t\t\t\treturn new loader(item, preferXHR);\n\t\t\t}\n\t\t}\n\n\t\t// TODO: Log error (requires createjs.log)\n\t\treturn null;\n\t};\n\n\t/**\n\t * Load the next item in the queue. If the queue is empty (all items have been loaded), then the complete event\n\t * is processed. The queue will \"fill up\" any empty slots, up to the max connection specified using\n\t * {{#crossLink \"LoadQueue.setMaxConnections\"}}{{/crossLink}} method. The only exception is scripts that are loaded\n\t * using tags, which have to be loaded one at a time to maintain load order.\n\t * @method _loadNext\n\t * @private\n\t */\n\tp._loadNext = function () {\n\t\tif (this._paused) {\n\t\t\treturn;\n\t\t}\n\n\t\t// Only dispatch loadstart event when the first file is loaded.\n\t\tif (!this._loadStartWasDispatched) {\n\t\t\tthis._sendLoadStart();\n\t\t\tthis._loadStartWasDispatched = true;\n\t\t}\n\n\t\t// The queue has completed.\n\t\tif (this._numItems == this._numItemsLoaded) {\n\t\t\tthis.loaded = true;\n\t\t\tthis._sendComplete();\n\n\t\t\t// Load the next queue, if it has been defined.\n\t\t\tif (this.next && this.next.load) {\n\t\t\t\tthis.next.load();\n\t\t\t}\n\t\t} else {\n\t\t\tthis.loaded = false;\n\t\t}\n\n\t\t// Must iterate forwards to load in the right order.\n\t\tfor (var i = 0; i < this._loadQueue.length; i++) {\n\t\t\tif (this._currentLoads.length >= this._maxConnections) {\n\t\t\t\tbreak;\n\t\t\t}\n\t\t\tvar loader = this._loadQueue[i];\n\n\t\t\t// Determine if we should be only loading one tag-script at a time:\n\t\t\t// Note: maintainOrder items don't do anything here because we can hold onto their loaded value\n\t\t\tif (!this._canStartLoad(loader)) {\n\t\t\t\tcontinue;\n\t\t\t}\n\t\t\tthis._loadQueue.splice(i, 1);\n\t\t\ti--;\n\t\t\tthis._loadItem(loader);\n\t\t}\n\t};\n\n\t/**\n\t * Begin loading an item. Event listeners are not added to the loaders until the load starts.\n\t * @method _loadItem\n\t * @param {AbstractLoader} loader The loader instance to start. Currently, this will be an XHRLoader or TagLoader.\n\t * @private\n\t */\n\tp._loadItem = function (loader) {\n\t\tloader.on(\"fileload\", this._handleFileLoad, this);\n\t\tloader.on(\"progress\", this._handleProgress, this);\n\t\tloader.on(\"complete\", this._handleFileComplete, this);\n\t\tloader.on(\"error\", this._handleError, this);\n\t\tloader.on(\"fileerror\", this._handleFileError, this);\n\t\tthis._currentLoads.push(loader);\n\t\tthis._sendFileStart(loader.getItem());\n\t\tloader.load();\n\t};\n\n\t/**\n\t * The callback that is fired when a loader loads a file. This enables loaders like {{#crossLink \"ManifestLoader\"}}{{/crossLink}}\n\t * to maintain internal queues, but for this queue to dispatch the {{#crossLink \"fileload:event\"}}{{/crossLink}}\n\t * events.\n\t * @param {Event} event The {{#crossLink \"AbstractLoader/fileload:event\"}}{{/crossLink}} event from the loader.\n\t * @private\n\t * @since 0.6.0\n\t */\n\tp._handleFileLoad = function (event) {\n\t\tevent.target = null;\n\t\tthis.dispatchEvent(event);\n\t};\n\n\t/**\n\t * The callback that is fired when a loader encounters an error from an internal file load operation. This enables\n\t * loaders like M\n\t * @param event\n\t * @private\n\t */\n\tp._handleFileError = function (event) {\n\t\tvar newEvent = new createjs.ErrorEvent(\"FILE_LOAD_ERROR\", null, event.item);\n\t\tthis._sendError(newEvent);\n\t};\n\n\t/**\n\t * The callback that is fired when a loader encounters an error. The queue will continue loading unless {{#crossLink \"LoadQueue/stopOnError:property\"}}{{/crossLink}}\n\t * is set to `true`.\n\t * @method _handleError\n\t * @param {ErrorEvent} event The error event, containing relevant error information.\n\t * @private\n\t */\n\tp._handleError = function (event) {\n\t\tvar loader = event.target;\n\t\tthis._numItemsLoaded++;\n\n\t\tthis._finishOrderedItem(loader, true);\n\t\tthis._updateProgress();\n\n\t\tvar newEvent = new createjs.ErrorEvent(\"FILE_LOAD_ERROR\", null, loader.getItem());\n\t\t// TODO: Propagate actual error message.\n\n\t\tthis._sendError(newEvent);\n\n\t\tif (!this.stopOnError) {\n\t\t\tthis._removeLoadItem(loader);\n\t\t\tthis._cleanLoadItem(loader);\n\t\t\tthis._loadNext();\n\t\t} else {\n\t\t\tthis.setPaused(true);\n\t\t}\n\t};\n\n\t/**\n\t * An item has finished loading. We can assume that it is totally loaded, has been parsed for immediate use, and\n\t * is available as the \"result\" property on the load item. The raw text result for a parsed item (such as JSON, XML,\n\t * CSS, JavaScript, etc) is available as the \"rawResult\" property, and can also be looked up using {{#crossLink \"LoadQueue/getResult\"}}{{/crossLink}}.\n\t * @method _handleFileComplete\n\t * @param {Event} event The event object from the loader.\n\t * @private\n\t */\n\tp._handleFileComplete = function (event) {\n\t\tvar loader = event.target;\n\t\tvar item = loader.getItem();\n\n\t\tvar result = loader.getResult();\n\t\tthis._loadedResults[item.id] = result;\n\t\tvar rawResult = loader.getResult(true);\n\t\tif (rawResult != null && rawResult !== result) {\n\t\t\tthis._loadedRawResults[item.id] = rawResult;\n\t\t}\n\n\t\tthis._saveLoadedItems(loader);\n\n\t\t// Remove the load item\n\t\tthis._removeLoadItem(loader);\n\n\t\tif (!this._finishOrderedItem(loader)) {\n\t\t\t// The item was NOT managed, so process it now\n\t\t\tthis._processFinishedLoad(item, loader);\n\t\t}\n\n\t\t// Clean up the load item\n\t\tthis._cleanLoadItem(loader);\n\t};\n\n\t/**\n\t * Some loaders might load additional content, other than the item they were passed (such as {{#crossLink \"ManifestLoader\"}}{{/crossLink}}).\n\t * Any items exposed by the loader using {{#crossLink \"AbstractLoader/getLoadItems\"}}{{/crossLink}} are added to the\n\t * LoadQueue's look-ups, including {{#crossLink \"getItem\"}}{{/crossLink}} and {{#crossLink \"getResult\"}}{{/crossLink}}\n\t * methods.\n\t * @method _saveLoadedItems\n\t * @param {AbstractLoader} loader\n\t * @protected\n\t * @since 0.6.0\n\t */\n\tp._saveLoadedItems = function (loader) {\n\t\t// TODO: Not sure how to handle this. Would be nice to expose the items.\n\t\t// Loaders may load sub-items. This adds them to this queue\n\t\tvar list = loader.getLoadedItems();\n\t\tif (list === null) {\n\t\t\treturn;\n\t\t}\n\n\t\tfor (var i = 0; i < list.length; i++) {\n\t\t\tvar item = list[i].item;\n\n\t\t\t// Store item lookups\n\t\t\tthis._loadItemsBySrc[item.src] = item;\n\t\t\tthis._loadItemsById[item.id] = item;\n\n\t\t\t// Store loaded content\n\t\t\tthis._loadedResults[item.id] = list[i].result;\n\t\t\tthis._loadedRawResults[item.id] = list[i].rawResult;\n\t\t}\n\t};\n\n\t/**\n\t * Flag an item as finished. If the item's order is being managed, then ensure that it is allowed to finish, and if\n\t * so, trigger prior items to trigger as well.\n\t * @method _finishOrderedItem\n\t * @param {AbstractLoader} loader\n\t * @param {Boolean} loadFailed\n\t * @return {Boolean} If the item's order is being managed. This allows the caller to take an alternate\n\t * behaviour if it is.\n\t * @private\n\t */\n\tp._finishOrderedItem = function (loader, loadFailed) {\n\t\tvar item = loader.getItem();\n\n\t\tif ((this.maintainScriptOrder && item.type == createjs.LoadQueue.JAVASCRIPT)\n\t\t\t\t|| item.maintainOrder) {\n\n\t\t\t//TODO: Evaluate removal of the _currentlyLoadingScript\n\t\t\tif (loader instanceof createjs.JavaScriptLoader) {\n\t\t\t\tthis._currentlyLoadingScript = false;\n\t\t\t}\n\n\t\t\tvar index = createjs.indexOf(this._scriptOrder, item);\n\t\t\tif (index == -1) {\n\t\t\t\treturn false;\n\t\t\t} // This loader no longer exists\n\t\t\tthis._loadedScripts[index] = (loadFailed === true) ? true : item;\n\n\t\t\tthis._checkScriptLoadOrder();\n\t\t\treturn true;\n\t\t}\n\n\t\treturn false;\n\t};\n\n\t/**\n\t * Ensure the scripts load and dispatch in the correct order. When using XHR, scripts are stored in an array in the\n\t * order they were added, but with a \"null\" value. When they are completed, the value is set to the load item,\n\t * and then when they are processed and dispatched, the value is set to `true`. This method simply\n\t * iterates the array, and ensures that any loaded items that are not preceded by a `null` value are\n\t * dispatched.\n\t * @method _checkScriptLoadOrder\n\t * @private\n\t */\n\tp._checkScriptLoadOrder = function () {\n\t\tvar l = this._loadedScripts.length;\n\n\t\tfor (var i = 0; i < l; i++) {\n\t\t\tvar item = this._loadedScripts[i];\n\t\t\tif (item === null) {\n\t\t\t\tbreak;\n\t\t\t} // This is still loading. Do not process further.\n\t\t\tif (item === true) {\n\t\t\t\tcontinue;\n\t\t\t} // This has completed, and been processed. Move on.\n\n\t\t\tvar loadItem = this._loadedResults[item.id];\n\t\t\tif (item.type == createjs.LoadQueue.JAVASCRIPT) {\n\t\t\t\t// Append script tags to the head automatically.\n\t\t\t\tcreatejs.DomUtils.appendToHead(loadItem);\n\t\t\t}\n\n\t\t\tvar loader = item._loader;\n\t\t\tthis._processFinishedLoad(item, loader);\n\t\t\tthis._loadedScripts[i] = true;\n\t\t}\n\t};\n\n\t/**\n\t * A file has completed loading, and the LoadQueue can move on. This triggers the complete event, and kick-starts\n\t * the next item.\n\t * @method _processFinishedLoad\n\t * @param {LoadItem|Object} item\n\t * @param {AbstractLoader} loader\n\t * @protected\n\t */\n\tp._processFinishedLoad = function (item, loader) {\n\t\tthis._numItemsLoaded++;\n\n\t\t// Since LoadQueue needs maintain order, we can't append scripts in the loader.\n\t\t// So we do it here instead. Or in _checkScriptLoadOrder();\n\t\tif (!this.maintainScriptOrder && item.type == createjs.LoadQueue.JAVASCRIPT) {\n\t\t\tvar tag = loader.getTag();\n\t\t\tcreatejs.DomUtils.appendToHead(tag);\n\t\t}\n\n\t\tthis._updateProgress();\n\t\tthis._sendFileComplete(item, loader);\n\t\tthis._loadNext();\n\t};\n\n\t/**\n\t * Ensure items with `maintainOrder=true` that are before the specified item have loaded. This only applies to\n\t * JavaScript items that are being loaded with a TagLoader, since they have to be loaded and completed before\n\t * the script can even be started, since it exist in the DOM while loading.\n\t * @method _canStartLoad\n\t * @param {AbstractLoader} loader The loader for the item\n\t * @return {Boolean} Whether the item can start a load or not.\n\t * @private\n\t */\n\tp._canStartLoad = function (loader) {\n\t\tif (!this.maintainScriptOrder || loader.preferXHR) {\n\t\t\treturn true;\n\t\t}\n\t\tvar item = loader.getItem();\n\t\tif (item.type != createjs.LoadQueue.JAVASCRIPT) {\n\t\t\treturn true;\n\t\t}\n\t\tif (this._currentlyLoadingScript) {\n\t\t\treturn false;\n\t\t}\n\n\t\tvar index = this._scriptOrder.indexOf(item);\n\t\tvar i = 0;\n\t\twhile (i < index) {\n\t\t\tvar checkItem = this._loadedScripts[i];\n\t\t\tif (checkItem == null) {\n\t\t\t\treturn false;\n\t\t\t}\n\t\t\ti++;\n\t\t}\n\t\tthis._currentlyLoadingScript = true;\n\t\treturn true;\n\t};\n\n\t/**\n\t * A load item is completed or was canceled, and needs to be removed from the LoadQueue.\n\t * @method _removeLoadItem\n\t * @param {AbstractLoader} loader A loader instance to remove.\n\t * @private\n\t */\n\tp._removeLoadItem = function (loader) {\n\t\tvar l = this._currentLoads.length;\n\t\tfor (var i = 0; i < l; i++) {\n\t\t\tif (this._currentLoads[i] == loader) {\n\t\t\t\tthis._currentLoads.splice(i, 1);\n\t\t\t\tbreak;\n\t\t\t}\n\t\t}\n\t};\n\n\t/**\n\t * Remove unneeded references from a loader.\n\t *\n\t * @param loader\n\t * @private\n\t */\n\tp._cleanLoadItem = function(loader) {\n\t\tvar item = loader.getItem();\n\t\tif (item) {\n\t\t\tdelete item._loader;\n\t\t}\n\t}\n\n\t/**\n\t * An item has dispatched progress. Propagate that progress, and update the LoadQueue's overall progress.\n\t * @method _handleProgress\n\t * @param {ProgressEvent} event The progress event from the item.\n\t * @private\n\t */\n\tp._handleProgress = function (event) {\n\t\tvar loader = event.target;\n\t\tthis._sendFileProgress(loader.getItem(), loader.progress);\n\t\tthis._updateProgress();\n\t};\n\n\t/**\n\t * Overall progress has changed, so determine the new progress amount and dispatch it. This changes any time an\n\t * item dispatches progress or completes. Note that since we don't always know the actual filesize of items before\n\t * they are loaded. In this case, we define a \"slot\" for each item (1 item in 10 would get 10%), and then append\n\t * loaded progress on top of the already-loaded items.\n\t *\n\t * For example, if 5/10 items have loaded, and item 6 is 20% loaded, the total progress would be:\n\t * \n\t * - 5/10 of the items in the queue (50%)
\n\t * - plus 20% of item 6's slot (2%)
\n\t * - equals 52%
\n\t *
\n\t * @method _updateProgress\n\t * @private\n\t */\n\tp._updateProgress = function () {\n\t\tvar loaded = this._numItemsLoaded / this._numItems; // Fully Loaded Progress\n\t\tvar remaining = this._numItems - this._numItemsLoaded;\n\t\tif (remaining > 0) {\n\t\t\tvar chunk = 0;\n\t\t\tfor (var i = 0, l = this._currentLoads.length; i < l; i++) {\n\t\t\t\tchunk += this._currentLoads[i].progress;\n\t\t\t}\n\t\t\tloaded += (chunk / remaining) * (remaining / this._numItems);\n\t\t}\n\n\t\tif (this._lastProgress != loaded) {\n\t\t\tthis._sendProgress(loaded);\n\t\t\tthis._lastProgress = loaded;\n\t\t}\n\t};\n\n\t/**\n\t * Clean out item results, to free them from memory. Mainly, the loaded item and results are cleared from internal\n\t * hashes.\n\t * @method _disposeItem\n\t * @param {LoadItem|Object} item The item that was passed in for preloading.\n\t * @private\n\t */\n\tp._disposeItem = function (item) {\n\t\tdelete this._loadedResults[item.id];\n\t\tdelete this._loadedRawResults[item.id];\n\t\tdelete this._loadItemsById[item.id];\n\t\tdelete this._loadItemsBySrc[item.src];\n\t};\n\n\t/**\n\t * Dispatch a \"fileprogress\" {{#crossLink \"Event\"}}{{/crossLink}}. Please see the LoadQueue {{#crossLink \"LoadQueue/fileprogress:event\"}}{{/crossLink}}\n\t * event for details on the event payload.\n\t * @method _sendFileProgress\n\t * @param {LoadItem|Object} item The item that is being loaded.\n\t * @param {Number} progress The amount the item has been loaded (between 0 and 1).\n\t * @protected\n\t */\n\tp._sendFileProgress = function (item, progress) {\n\t\tif (this._isCanceled() || this._paused) {\n\t\t\treturn;\n\t\t}\n\t\tif (!this.hasEventListener(\"fileprogress\")) {\n\t\t\treturn;\n\t\t}\n\n\t\t//LM: Rework ProgressEvent to support this?\n\t\tvar event = new createjs.Event(\"fileprogress\");\n\t\tevent.progress = progress;\n\t\tevent.loaded = progress;\n\t\tevent.total = 1;\n\t\tevent.item = item;\n\n\t\tthis.dispatchEvent(event);\n\t};\n\n\t/**\n\t * Dispatch a fileload {{#crossLink \"Event\"}}{{/crossLink}}. Please see the {{#crossLink \"LoadQueue/fileload:event\"}}{{/crossLink}} event for\n\t * details on the event payload.\n\t * @method _sendFileComplete\n\t * @param {LoadItemObject} item The item that is being loaded.\n\t * @param {AbstractLoader} loader\n\t * @protected\n\t */\n\tp._sendFileComplete = function (item, loader) {\n\t\tif (this._isCanceled() || this._paused) {\n\t\t\treturn;\n\t\t}\n\n\t\tvar event = new createjs.Event(\"fileload\");\n\t\tevent.loader = loader;\n\t\tevent.item = item;\n\t\tevent.result = this._loadedResults[item.id];\n\t\tevent.rawResult = this._loadedRawResults[item.id];\n\n\t\t// This calls a handler specified on the actual load item. Currently, the SoundJS plugin uses this.\n\t\tif (item.completeHandler) {\n\t\t\titem.completeHandler(event);\n\t\t}\n\n\t\tthis.hasEventListener(\"fileload\") && this.dispatchEvent(event);\n\t};\n\n\t/**\n\t * Dispatch a filestart {{#crossLink \"Event\"}}{{/crossLink}} immediately before a file starts to load. Please see\n\t * the {{#crossLink \"LoadQueue/filestart:event\"}}{{/crossLink}} event for details on the event payload.\n\t * @method _sendFileStart\n\t * @param {LoadItem|Object} item The item that is being loaded.\n\t * @protected\n\t */\n\tp._sendFileStart = function (item) {\n\t\tvar event = new createjs.Event(\"filestart\");\n\t\tevent.item = item;\n\t\tthis.hasEventListener(\"filestart\") && this.dispatchEvent(event);\n\t};\n\n\tp.toString = function () {\n\t\treturn \"[PreloadJS LoadQueue]\";\n\t};\n\n\tcreatejs.LoadQueue = createjs.promote(LoadQueue, \"AbstractLoader\");\n}());\n\n//##############################################################################\n// TextLoader.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t// constructor\n\t/**\n\t * A loader for Text files.\n\t * @class TextLoader\n\t * @param {LoadItem|Object} loadItem\n\t * @extends AbstractLoader\n\t * @constructor\n\t */\n\tfunction TextLoader(loadItem) {\n\t\tthis.AbstractLoader_constructor(loadItem, true, createjs.AbstractLoader.TEXT);\n\t};\n\n\tvar p = createjs.extend(TextLoader, createjs.AbstractLoader);\n\tvar s = TextLoader;\n\n\t// static methods\n\t/**\n\t * Determines if the loader can load a specific item. This loader loads items that are of type {{#crossLink \"AbstractLoader/TEXT:property\"}}{{/crossLink}},\n\t * but is also the default loader if a file type can not be determined.\n\t * @method canLoadItem\n\t * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load.\n\t * @returns {Boolean} Whether the loader can load the item.\n\t * @static\n\t */\n\ts.canLoadItem = function (item) {\n\t\treturn item.type == createjs.AbstractLoader.TEXT;\n\t};\n\n\tcreatejs.TextLoader = createjs.promote(TextLoader, \"AbstractLoader\");\n\n}());\n\n//##############################################################################\n// BinaryLoader.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t// constructor\n\t/**\n\t * A loader for binary files. This is useful for loading web audio, or content that requires an ArrayBuffer.\n\t * @class BinaryLoader\n\t * @param {LoadItem|Object} loadItem\n\t * @extends AbstractLoader\n\t * @constructor\n\t */\n\tfunction BinaryLoader(loadItem) {\n\t\tthis.AbstractLoader_constructor(loadItem, true, createjs.AbstractLoader.BINARY);\n\t\tthis.on(\"initialize\", this._updateXHR, this);\n\t};\n\n\tvar p = createjs.extend(BinaryLoader, createjs.AbstractLoader);\n\tvar s = BinaryLoader;\n\n\t// static methods\n\t/**\n\t * Determines if the loader can load a specific item. This loader can only load items that are of type\n\t * {{#crossLink \"AbstractLoader/BINARY:property\"}}{{/crossLink}}\n\t * @method canLoadItem\n\t * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load.\n\t * @returns {Boolean} Whether the loader can load the item.\n\t * @static\n\t */\n\ts.canLoadItem = function (item) {\n\t\treturn item.type == createjs.AbstractLoader.BINARY;\n\t};\n\n\t// private methods\n\t/**\n\t * Before the item loads, set the response type to \"arraybuffer\"\n\t * @property _updateXHR\n\t * @param {Event} event\n\t * @private\n\t */\n\tp._updateXHR = function (event) {\n\t\tevent.loader.setResponseType(\"arraybuffer\");\n\t};\n\n\tcreatejs.BinaryLoader = createjs.promote(BinaryLoader, \"AbstractLoader\");\n\n}());\n\n//##############################################################################\n// CSSLoader.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t// constructor\n\t/**\n\t * A loader for CSS files.\n\t * @class CSSLoader\n\t * @param {LoadItem|Object} loadItem\n\t * @param {Boolean} preferXHR\n\t * @extends AbstractLoader\n\t * @constructor\n\t */\n\tfunction CSSLoader(loadItem, preferXHR) {\n\t\tthis.AbstractLoader_constructor(loadItem, preferXHR, createjs.AbstractLoader.CSS);\n\n\t\t// public properties\n\t\tthis.resultFormatter = this._formatResult;\n\n\t\t// protected properties\n\t\tthis._tagSrcAttribute = \"href\";\n\n\t\tif (preferXHR) {\n\t\t\tthis._tag = document.createElement(\"style\");\n\t\t} else {\n\t\t\tthis._tag = document.createElement(\"link\");\n\t\t}\n\n\t\tthis._tag.rel = \"stylesheet\";\n\t\tthis._tag.type = \"text/css\";\n\t};\n\n\tvar p = createjs.extend(CSSLoader, createjs.AbstractLoader);\n\tvar s = CSSLoader;\n\n\t// static methods\n\t/**\n\t * Determines if the loader can load a specific item. This loader can only load items that are of type\n\t * {{#crossLink \"AbstractLoader/CSS:property\"}}{{/crossLink}}.\n\t * @method canLoadItem\n\t * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load.\n\t * @returns {Boolean} Whether the loader can load the item.\n\t * @static\n\t */\n\ts.canLoadItem = function (item) {\n\t\treturn item.type == createjs.AbstractLoader.CSS;\n\t};\n\n\t// protected methods\n\t/**\n\t * The result formatter for CSS files.\n\t * @method _formatResult\n\t * @param {AbstractLoader} loader\n\t * @returns {HTMLLinkElement|HTMLStyleElement}\n\t * @private\n\t */\n\tp._formatResult = function (loader) {\n\t\tif (this._preferXHR) {\n\t\t\tvar tag = loader.getTag();\n\n\t\t\tif (tag.styleSheet) { // IE\n\t\t\t\ttag.styleSheet.cssText = loader.getResult(true);\n\t\t\t} else {\n\t\t\t\tvar textNode = document.createTextNode(loader.getResult(true));\n\t\t\t\ttag.appendChild(textNode);\n\t\t\t}\n\t\t} else {\n\t\t\ttag = this._tag;\n\t\t}\n\n\t\tcreatejs.DomUtils.appendToHead(tag);\n\n\t\treturn tag;\n\t};\n\n\tcreatejs.CSSLoader = createjs.promote(CSSLoader, \"AbstractLoader\");\n\n}());\n\n//##############################################################################\n// ImageLoader.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t// constructor\n\t/**\n\t * A loader for image files.\n\t * @class ImageLoader\n\t * @param {LoadItem|Object} loadItem\n\t * @param {Boolean} preferXHR\n\t * @extends AbstractLoader\n\t * @constructor\n\t */\n\tfunction ImageLoader (loadItem, preferXHR) {\n\t\tthis.AbstractLoader_constructor(loadItem, preferXHR, createjs.AbstractLoader.IMAGE);\n\n\t\t// public properties\n\t\tthis.resultFormatter = this._formatResult;\n\n\t\t// protected properties\n\t\tthis._tagSrcAttribute = \"src\";\n\n\t\t// Check if the preload item is already a tag.\n\t\tif (createjs.RequestUtils.isImageTag(loadItem)) {\n\t\t\tthis._tag = loadItem;\n\t\t} else if (createjs.RequestUtils.isImageTag(loadItem.src)) {\n\t\t\tthis._tag = loadItem.src;\n\t\t} else if (createjs.RequestUtils.isImageTag(loadItem.tag)) {\n\t\t\tthis._tag = loadItem.tag;\n\t\t}\n\n\t\tif (this._tag != null) {\n\t\t\tthis._preferXHR = false;\n\t\t} else {\n\t\t\tthis._tag = document.createElement(\"img\");\n\t\t}\n\n\t\tthis.on(\"initialize\", this._updateXHR, this);\n\t};\n\n\tvar p = createjs.extend(ImageLoader, createjs.AbstractLoader);\n\tvar s = ImageLoader;\n\n\t// static methods\n\t/**\n\t * Determines if the loader can load a specific item. This loader can only load items that are of type\n\t * {{#crossLink \"AbstractLoader/IMAGE:property\"}}{{/crossLink}}.\n\t * @method canLoadItem\n\t * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load.\n\t * @returns {Boolean} Whether the loader can load the item.\n\t * @static\n\t */\n\ts.canLoadItem = function (item) {\n\t\treturn item.type == createjs.AbstractLoader.IMAGE;\n\t};\n\n\t// public methods\n\tp.load = function () {\n\t\tif (this._tag.src != \"\" && this._tag.complete) {\n\t\t\tthis._sendComplete();\n\t\t\treturn;\n\t\t}\n\n\t\tvar crossOrigin = this._item.crossOrigin;\n\t\tif (crossOrigin == true) { crossOrigin = \"Anonymous\"; }\n\t\tif (crossOrigin != null && !createjs.RequestUtils.isLocal(this._item.src)) {\n\t\t\tthis._tag.crossOrigin = crossOrigin;\n\t\t}\n\n\t\tthis.AbstractLoader_load();\n\t};\n\n\t// protected methods\n\t/**\n\t * Before the item loads, set its mimeType and responseType.\n\t * @property _updateXHR\n\t * @param {Event} event\n\t * @private\n\t */\n\tp._updateXHR = function (event) {\n\t\tevent.loader.mimeType = 'text/plain; charset=x-user-defined-binary';\n\n\t\t// Only exists for XHR\n\t\tif (event.loader.setResponseType) {\n\t\t\tevent.loader.setResponseType(\"blob\");\n\t\t}\n\t};\n\n\t/**\n\t * The result formatter for Image files.\n\t * @method _formatResult\n\t * @param {AbstractLoader} loader\n\t * @returns {HTMLImageElement}\n\t * @private\n\t */\n\tp._formatResult = function (loader) {\n\t\treturn this._formatImage;\n\t};\n\n\t/**\n\t * The asynchronous image formatter function. This is required because images have\n\t * a short delay before they are ready.\n\t * @method _formatImage\n\t * @param {Function} successCallback The method to call when the result has finished formatting\n\t * @param {Function} errorCallback The method to call if an error occurs during formatting\n\t * @private\n\t */\n\tp._formatImage = function (successCallback, errorCallback) {\n\t\tvar tag = this._tag;\n\t\tvar URL = window.URL || window.webkitURL;\n\n\t\tif (!this._preferXHR) {\n\t\t\t//document.body.removeChild(tag);\n\t\t} else if (URL) {\n\t\t\tvar objURL = URL.createObjectURL(this.getResult(true));\n\t\t\ttag.src = objURL;\n\n\t\t\ttag.addEventListener(\"load\", this._cleanUpURL, false);\n\t\t\ttag.addEventListener(\"error\", this._cleanUpURL, false);\n\t\t} else {\n\t\t\ttag.src = this._item.src;\n\t\t}\n\n\t\tif (tag.complete) {\n\t\t\tsuccessCallback(tag);\n\t\t} else {\n tag.onload = createjs.proxy(function() {\n successCallback(this._tag);\n }, this);\n\n tag.onerror = createjs.proxy(function() {\n errorCallback(_this._tag);\n }, this);\n\t\t}\n\t};\n\n\t/**\n\t * Clean up the ObjectURL, the tag is done with it. Note that this function is run\n\t * as an event listener without a proxy/closure, as it doesn't require it - so do not\n\t * include any functionality that requires scope without changing it.\n\t * @method _cleanUpURL\n\t * @param event\n\t * @private\n\t */\n\tp._cleanUpURL = function (event) {\n\t\tvar URL = window.URL || window.webkitURL;\n\t\tURL.revokeObjectURL(event.target.src);\n\t};\n\n\tcreatejs.ImageLoader = createjs.promote(ImageLoader, \"AbstractLoader\");\n\n}());\n\n//##############################################################################\n// JavaScriptLoader.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t// constructor\n\t/**\n\t * A loader for JavaScript files.\n\t * @class JavaScriptLoader\n\t * @param {LoadItem|Object} loadItem\n\t * @param {Boolean} preferXHR\n\t * @extends AbstractLoader\n\t * @constructor\n\t */\n\tfunction JavaScriptLoader(loadItem, preferXHR) {\n\t\tthis.AbstractLoader_constructor(loadItem, preferXHR, createjs.AbstractLoader.JAVASCRIPT);\n\n\t\t// public properties\n\t\tthis.resultFormatter = this._formatResult;\n\n\t\t// protected properties\n\t\tthis._tagSrcAttribute = \"src\";\n\t\tthis.setTag(document.createElement(\"script\"));\n\t};\n\n\tvar p = createjs.extend(JavaScriptLoader, createjs.AbstractLoader);\n\tvar s = JavaScriptLoader;\n\n\t// static methods\n\t/**\n\t * Determines if the loader can load a specific item. This loader can only load items that are of type\n\t * {{#crossLink \"AbstractLoader/JAVASCRIPT:property\"}}{{/crossLink}}\n\t * @method canLoadItem\n\t * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load.\n\t * @returns {Boolean} Whether the loader can load the item.\n\t * @static\n\t */\n\ts.canLoadItem = function (item) {\n\t\treturn item.type == createjs.AbstractLoader.JAVASCRIPT;\n\t};\n\n\t// protected methods\n\t/**\n\t * The result formatter for JavaScript files.\n\t * @method _formatResult\n\t * @param {AbstractLoader} loader\n\t * @returns {HTMLLinkElement|HTMLStyleElement}\n\t * @private\n\t */\n\tp._formatResult = function (loader) {\n\t\tvar tag = loader.getTag();\n\t\tif (this._preferXHR) {\n\t\t\ttag.text = loader.getResult(true);\n\t\t}\n\t\treturn tag;\n\t};\n\n\tcreatejs.JavaScriptLoader = createjs.promote(JavaScriptLoader, \"AbstractLoader\");\n\n}());\n\n//##############################################################################\n// JSONLoader.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t// constructor\n\t/**\n\t * A loader for JSON files. To load JSON cross-domain, use JSONP and the {{#crossLink \"JSONPLoader\"}}{{/crossLink}}\n\t * instead. To load JSON-formatted manifests, use {{#crossLink \"ManifestLoader\"}}{{/crossLink}}, and to\n\t * load EaselJS SpriteSheets, use {{#crossLink \"SpriteSheetLoader\"}}{{/crossLink}}.\n\t * @class JSONLoader\n\t * @param {LoadItem|Object} loadItem\n\t * @extends AbstractLoader\n\t * @constructor\n\t */\n\tfunction JSONLoader(loadItem) {\n\t\tthis.AbstractLoader_constructor(loadItem, true, createjs.AbstractLoader.JSON);\n\n\t\t// public properties\n\t\tthis.resultFormatter = this._formatResult;\n\t};\n\n\tvar p = createjs.extend(JSONLoader, createjs.AbstractLoader);\n\tvar s = JSONLoader;\n\n\t// static methods\n\t/**\n\t * Determines if the loader can load a specific item. This loader can only load items that are of type\n\t * {{#crossLink \"AbstractLoader/JSON:property\"}}{{/crossLink}}.\n\t * @method canLoadItem\n\t * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load.\n\t * @returns {Boolean} Whether the loader can load the item.\n\t * @static\n\t */\n\ts.canLoadItem = function (item) {\n\t\treturn item.type == createjs.AbstractLoader.JSON;\n\t};\n\n\t// protected methods\n\t/**\n\t * The result formatter for JSON files.\n\t * @method _formatResult\n\t * @param {AbstractLoader} loader\n\t * @returns {HTMLLinkElement|HTMLStyleElement}\n\t * @private\n\t */\n\tp._formatResult = function (loader) {\n\t\tvar json = null;\n\t\ttry {\n\t\t\tjson = createjs.DataUtils.parseJSON(loader.getResult(true));\n\t\t} catch (e) {\n\t\t\tvar event = new createjs.ErrorEvent(\"JSON_FORMAT\", null, e);\n\t\t\tthis._sendError(event);\n\t\t\treturn e;\n\t\t}\n\n\t\treturn json;\n\t};\n\n\tcreatejs.JSONLoader = createjs.promote(JSONLoader, \"AbstractLoader\");\n\n}());\n\n//##############################################################################\n// JSONPLoader.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t// constructor\n\t/**\n\t * A loader for JSONP files, which are JSON-formatted text files, wrapped in a callback. To load regular JSON\n\t * without a callback use the {{#crossLink \"JSONLoader\"}}{{/crossLink}} instead. To load JSON-formatted manifests,\n\t * use {{#crossLink \"ManifestLoader\"}}{{/crossLink}}, and to load EaselJS SpriteSheets, use\n\t * {{#crossLink \"SpriteSheetLoader\"}}{{/crossLink}}.\n\t *\n\t * JSONP is a format that provides a solution for loading JSON files cross-domain without requiring CORS.\n\t * JSONP files are loaded as JavaScript, and the \"callback\" is executed once they are loaded. The callback in the\n\t * JSONP must match the callback passed to the loadItem.\n\t *\n\t * Example JSONP
\n\t *\n\t * \t\tcallbackName({\n\t * \t\t\t\"name\": \"value\",\n\t *\t \t\t\"num\": 3,\n\t *\t\t\t\"obj\": { \"bool\":true }\n\t * \t\t});\n\t *\n\t * Example
\n\t *\n\t * \t\tvar loadItem = {id:\"json\", type:\"jsonp\", src:\"http://server.com/text.json\", callback:\"callbackName\"}\n\t * \t\tvar queue = new createjs.LoadQueue();\n\t * \t\tqueue.on(\"complete\", handleComplete);\n\t * \t\tqueue.loadItem(loadItem);\n\t *\n\t * \t\tfunction handleComplete(event) }\n\t * \t\t\tvar json = queue.getResult(\"json\");\n\t * \t\t\tconsole.log(json.obj.bool); // true\n\t * \t\t}\n\t *\n\t * Note that JSONP files loaded concurrently require a unique callback. To ensure JSONP files are loaded\n\t * in order, either use the {{#crossLink \"LoadQueue/setMaxConnections\"}}{{/crossLink}} method (set to 1),\n\t * or set {{#crossLink \"LoadItem/maintainOrder:property\"}}{{/crossLink}} on items with the same callback.\n\t *\n\t * @class JSONPLoader\n\t * @param {LoadItem|Object} loadItem\n\t * @extends AbstractLoader\n\t * @constructor\n\t */\n\tfunction JSONPLoader(loadItem) {\n\t\tthis.AbstractLoader_constructor(loadItem, false, createjs.AbstractLoader.JSONP);\n\t\tthis.setTag(document.createElement(\"script\"));\n\t\tthis.getTag().type = \"text/javascript\";\n\t};\n\n\tvar p = createjs.extend(JSONPLoader, createjs.AbstractLoader);\n\tvar s = JSONPLoader;\n\n\n\t// static methods\n\t/**\n\t * Determines if the loader can load a specific item. This loader can only load items that are of type\n\t * {{#crossLink \"AbstractLoader/JSONP:property\"}}{{/crossLink}}.\n\t * @method canLoadItem\n\t * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load.\n\t * @returns {Boolean} Whether the loader can load the item.\n\t * @static\n\t */\n\ts.canLoadItem = function (item) {\n\t\treturn item.type == createjs.AbstractLoader.JSONP;\n\t};\n\n\t// public methods\n\tp.cancel = function () {\n\t\tthis.AbstractLoader_cancel();\n\t\tthis._dispose();\n\t};\n\n\t/**\n\t * Loads the JSONp file. Because of the unique loading needs of JSONp\n\t * we don't use the AbstractLoader.load() method.\n\t *\n\t * @method load\n\t *\n\t */\n\tp.load = function () {\n\t\tif (this._item.callback == null) {\n\t\t\tthrow new Error('callback is required for loading JSONP requests.');\n\t\t}\n\n\t\t// TODO: Look into creating our own iFrame to handle the load\n\t\t// In the first attempt, FF did not get the result\n\t\t// result instanceof Object did not work either\n\t\t// so we would need to clone the result.\n\t\tif (window[this._item.callback] != null) {\n\t\t\tthrow new Error(\n\t\t\t\t\"JSONP callback '\" +\n\t\t\t\tthis._item.callback +\n\t\t\t\t\"' already exists on window. You need to specify a different callback or re-name the current one.\");\n\t\t}\n\n\t\twindow[this._item.callback] = createjs.proxy(this._handleLoad, this);\n\t\twindow.document.body.appendChild(this._tag);\n\n\t\tthis._loadTimeout = setTimeout(createjs.proxy(this._handleTimeout, this), this._item.loadTimeout);\n\n\t\t// Load the tag\n\t\tthis._tag.src = this._item.src;\n\t};\n\n\t// private methods\n\t/**\n\t * Handle the JSONP callback, which is a public method defined on `window`.\n\t * @method _handleLoad\n\t * @param {Object} data The formatted JSON data.\n\t * @private\n\t */\n\tp._handleLoad = function (data) {\n\t\tthis._result = this._rawResult = data;\n\t\tthis._sendComplete();\n\n\t\tthis._dispose();\n\t};\n\n\t/**\n\t * The tag request has not loaded within the time specfied in loadTimeout.\n\t * @method _handleError\n\t * @param {Object} event The XHR error event.\n\t * @private\n\t */\n\tp._handleTimeout = function () {\n\t\tthis._dispose();\n\t\tthis.dispatchEvent(new createjs.ErrorEvent(\"timeout\"));\n\t};\n\n\t/**\n\t * Clean up the JSONP load. This clears out the callback and script tag that this loader creates.\n\t * @method _dispose\n\t * @private\n\t */\n\tp._dispose = function () {\n\t\twindow.document.body.removeChild(this._tag);\n\t\tdelete window[this._item.callback];\n\n\t\tclearTimeout(this._loadTimeout);\n\t};\n\n\tcreatejs.JSONPLoader = createjs.promote(JSONPLoader, \"AbstractLoader\");\n\n}());\n\n//##############################################################################\n// ManifestLoader.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t// constructor\n\t/**\n\t * A loader for JSON manifests. Items inside the manifest are loaded before the loader completes. To load manifests\n\t * using JSONP, specify a {{#crossLink \"LoadItem/callback:property\"}}{{/crossLink}} as part of the\n\t * {{#crossLink \"LoadItem\"}}{{/crossLink}}.\n\t *\n\t * The list of files in the manifest must be defined on the top-level JSON object in a `manifest` property. This\n\t * example shows a sample manifest definition, as well as how to to include a sub-manifest.\n\t *\n\t * \t\t{\n\t * \t\t\t\"path\": \"assets/\",\n\t *\t \t \"manifest\": [\n\t *\t\t\t\t\"image.png\",\n\t *\t\t\t\t{\"src\": \"image2.png\", \"id\":\"image2\"},\n\t *\t\t\t\t{\"src\": \"sub-manifest.json\", \"type\":\"manifest\", \"callback\":\"jsonCallback\"}\n\t *\t \t ]\n\t *\t \t}\n\t *\n\t * When a ManifestLoader has completed loading, the parent loader (usually a {{#crossLink \"LoadQueue\"}}{{/crossLink}},\n\t * but could also be another ManifestLoader) will inherit all the loaded items, so you can access them directly.\n\t *\n\t * Note that the {{#crossLink \"JSONLoader\"}}{{/crossLink}} and {{#crossLink \"JSONPLoader\"}}{{/crossLink}} are\n\t * higher priority loaders, so manifests must set the {{#crossLink \"LoadItem\"}}{{/crossLink}}\n\t * {{#crossLink \"LoadItem/type:property\"}}{{/crossLink}} property to {{#crossLink \"AbstractLoader/MANIFEST:property\"}}{{/crossLink}}.\n\t * @class ManifestLoader\n\t * @param {LoadItem|Object} loadItem\n\t * @extends AbstractLoader\n\t * @constructor\n\t */\n\tfunction ManifestLoader(loadItem) {\n\t\tthis.AbstractLoader_constructor(loadItem, null, createjs.AbstractLoader.MANIFEST);\n\n\t// Public Properties\n\t\t/**\n\t\t * An array of the plugins registered using {{#crossLink \"LoadQueue/installPlugin\"}}{{/crossLink}},\n\t\t * used to pass plugins to new LoadQueues that may be created.\n\t\t * @property _plugins\n\t\t * @type {Array}\n\t\t * @private\n\t\t * @since 0.6.1\n\t\t */\n\t\tthis.plugins = null;\n\n\n\t// Protected Properties\n\t\t/**\n\t\t * An internal {{#crossLink \"LoadQueue\"}}{{/crossLink}} that loads the contents of the manifest.\n\t\t * @property _manifestQueue\n\t\t * @type {LoadQueue}\n\t\t * @private\n\t\t */\n\t\tthis._manifestQueue = null;\n\t};\n\n\tvar p = createjs.extend(ManifestLoader, createjs.AbstractLoader);\n\tvar s = ManifestLoader;\n\n\t// static properties\n\t/**\n\t * The amount of progress that the manifest itself takes up.\n\t * @property MANIFEST_PROGRESS\n\t * @type {number}\n\t * @default 0.25 (25%)\n\t * @private\n\t * @static\n\t */\n\ts.MANIFEST_PROGRESS = 0.25;\n\n\t// static methods\n\t/**\n\t * Determines if the loader can load a specific item. This loader can only load items that are of type\n\t * {{#crossLink \"AbstractLoader/MANIFEST:property\"}}{{/crossLink}}\n\t * @method canLoadItem\n\t * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load.\n\t * @returns {Boolean} Whether the loader can load the item.\n\t * @static\n\t */\n\ts.canLoadItem = function (item) {\n\t\treturn item.type == createjs.AbstractLoader.MANIFEST;\n\t};\n\n\t// public methods\n\tp.load = function () {\n\t\tthis.AbstractLoader_load();\n\t};\n\n\t// protected methods\n\tp._createRequest = function() {\n\t\tvar callback = this._item.callback;\n\t\tif (callback != null) {\n\t\t\tthis._request = new createjs.JSONPLoader(this._item);\n\t\t} else {\n\t\t\tthis._request = new createjs.JSONLoader(this._item);\n\t\t}\n\t};\n\n\tp.handleEvent = function (event) {\n\t\tswitch (event.type) {\n\t\t\tcase \"complete\":\n\t\t\t\tthis._rawResult = event.target.getResult(true);\n\t\t\t\tthis._result = event.target.getResult();\n\t\t\t\tthis._sendProgress(s.MANIFEST_PROGRESS);\n\t\t\t\tthis._loadManifest(this._result);\n\t\t\t\treturn;\n\t\t\tcase \"progress\":\n\t\t\t\tevent.loaded *= s.MANIFEST_PROGRESS;\n\t\t\t\tthis.progress = event.loaded / event.total;\n\t\t\t\tif (isNaN(this.progress) || this.progress == Infinity) { this.progress = 0; }\n\t\t\t\tthis._sendProgress(event);\n\t\t\t\treturn;\n\t\t}\n\t\tthis.AbstractLoader_handleEvent(event);\n\t};\n\n\tp.destroy = function() {\n\t\tthis.AbstractLoader_destroy();\n\t\tthis._manifestQueue.close();\n\t};\n\n\t/**\n\t * Create and load the manifest items once the actual manifest has been loaded.\n\t * @method _loadManifest\n\t * @param {Object} json\n\t * @private\n\t */\n\tp._loadManifest = function (json) {\n\t\tif (json && json.manifest) {\n\t\t\tvar queue = this._manifestQueue = new createjs.LoadQueue();\n\t\t\tqueue.on(\"fileload\", this._handleManifestFileLoad, this);\n\t\t\tqueue.on(\"progress\", this._handleManifestProgress, this);\n\t\t\tqueue.on(\"complete\", this._handleManifestComplete, this, true);\n\t\t\tqueue.on(\"error\", this._handleManifestError, this, true);\n\t\t\tfor(var i = 0, l = this.plugins.length; i < l; i++) {\t// conserve order of plugins\n\t\t\t\tqueue.installPlugin(this.plugins[i]);\n\t\t\t}\n\t\t\tqueue.loadManifest(json);\n\t\t} else {\n\t\t\tthis._sendComplete();\n\t\t}\n\t};\n\n\t/**\n\t * An item from the {{#crossLink \"_manifestQueue:property\"}}{{/crossLink}} has completed.\n\t * @method _handleManifestFileLoad\n\t * @param {Event} event\n\t * @private\n\t */\n\tp._handleManifestFileLoad = function (event) {\n\t\tevent.target = null;\n\t\tthis.dispatchEvent(event);\n\t};\n\n\t/**\n\t * The manifest has completed loading. This triggers the {{#crossLink \"AbstractLoader/complete:event\"}}{{/crossLink}}\n\t * {{#crossLink \"Event\"}}{{/crossLink}} from the ManifestLoader.\n\t * @method _handleManifestComplete\n\t * @param {Event} event\n\t * @private\n\t */\n\tp._handleManifestComplete = function (event) {\n\t\tthis._loadedItems = this._manifestQueue.getItems(true);\n\t\tthis._sendComplete();\n\t};\n\n\t/**\n\t * The manifest has reported progress.\n\t * @method _handleManifestProgress\n\t * @param {ProgressEvent} event\n\t * @private\n\t */\n\tp._handleManifestProgress = function (event) {\n\t\tthis.progress = event.progress * (1 - s.MANIFEST_PROGRESS) + s.MANIFEST_PROGRESS;\n\t\tthis._sendProgress(this.progress);\n\t};\n\n\t/**\n\t * The manifest has reported an error with one of the files.\n\t * @method _handleManifestError\n\t * @param {ErrorEvent} event\n\t * @private\n\t */\n\tp._handleManifestError = function (event) {\n\t\tvar newEvent = new createjs.Event(\"fileerror\");\n\t\tnewEvent.item = event.data;\n\t\tthis.dispatchEvent(newEvent);\n\t};\n\n\tcreatejs.ManifestLoader = createjs.promote(ManifestLoader, \"AbstractLoader\");\n\n}());\n\n//##############################################################################\n// SoundLoader.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t// constructor\n\t/**\n\t * A loader for HTML audio files. PreloadJS can not load WebAudio files, as a WebAudio context is required, which\n\t * should be created by either a library playing the sound (such as SoundJS, or an\n\t * external framework that handles audio playback. To load content that can be played by WebAudio, use the\n\t * {{#crossLink \"BinaryLoader\"}}{{/crossLink}}, and handle the audio context decoding manually.\n\t * @class SoundLoader\n\t * @param {LoadItem|Object} loadItem\n\t * @param {Boolean} preferXHR\n\t * @extends AbstractMediaLoader\n\t * @constructor\n\t */\n\tfunction SoundLoader(loadItem, preferXHR) {\n\t\tthis.AbstractMediaLoader_constructor(loadItem, preferXHR, createjs.AbstractLoader.SOUND);\n\n\t\t// protected properties\n\t\tif (createjs.RequestUtils.isAudioTag(loadItem)) {\n\t\t\tthis._tag = loadItem;\n\t\t} else if (createjs.RequestUtils.isAudioTag(loadItem.src)) {\n\t\t\tthis._tag = loadItem;\n\t\t} else if (createjs.RequestUtils.isAudioTag(loadItem.tag)) {\n\t\t\tthis._tag = createjs.RequestUtils.isAudioTag(loadItem) ? loadItem : loadItem.src;\n\t\t}\n\n\t\tif (this._tag != null) {\n\t\t\tthis._preferXHR = false;\n\t\t}\n\t};\n\n\tvar p = createjs.extend(SoundLoader, createjs.AbstractMediaLoader);\n\tvar s = SoundLoader;\n\n\t// static methods\n\t/**\n\t * Determines if the loader can load a specific item. This loader can only load items that are of type\n\t * {{#crossLink \"AbstractLoader/SOUND:property\"}}{{/crossLink}}.\n\t * @method canLoadItem\n\t * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load.\n\t * @returns {Boolean} Whether the loader can load the item.\n\t * @static\n\t */\n\ts.canLoadItem = function (item) {\n\t\treturn item.type == createjs.AbstractLoader.SOUND;\n\t};\n\n\t// protected methods\n\tp._createTag = function (src) {\n\t\tvar tag = document.createElement(\"audio\");\n\t\ttag.autoplay = false;\n\t\ttag.preload = \"none\";\n\n\t\t//LM: Firefox fails when this the preload=\"none\" for other tags, but it needs to be \"none\" to ensure PreloadJS works.\n\t\ttag.src = src;\n\t\treturn tag;\n\t};\n\n\tcreatejs.SoundLoader = createjs.promote(SoundLoader, \"AbstractMediaLoader\");\n\n}());\n\n//##############################################################################\n// VideoLoader.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t// constructor\n\t/**\n\t * A loader for video files.\n\t * @class VideoLoader\n\t * @param {LoadItem|Object} loadItem\n\t * @param {Boolean} preferXHR\n\t * @extends AbstractMediaLoader\n\t * @constructor\n\t */\n\tfunction VideoLoader(loadItem, preferXHR) {\n\t\tthis.AbstractMediaLoader_constructor(loadItem, preferXHR, createjs.AbstractLoader.VIDEO);\n\n\t\tif (createjs.RequestUtils.isVideoTag(loadItem) || createjs.RequestUtils.isVideoTag(loadItem.src)) {\n\t\t\tthis.setTag(createjs.RequestUtils.isVideoTag(loadItem)?loadItem:loadItem.src);\n\n\t\t\t// We can't use XHR for a tag that's passed in.\n\t\t\tthis._preferXHR = false;\n\t\t} else {\n\t\t\tthis.setTag(this._createTag());\n\t\t}\n\t};\n\n\tvar p = createjs.extend(VideoLoader, createjs.AbstractMediaLoader);\n\tvar s = VideoLoader;\n\n\t/**\n\t * Create a new video tag\n\t *\n\t * @returns {HTMLElement}\n\t * @private\n\t */\n\tp._createTag = function () {\n\t\treturn document.createElement(\"video\");\n\t};\n\n\t// static methods\n\t/**\n\t * Determines if the loader can load a specific item. This loader can only load items that are of type\n\t * {{#crossLink \"AbstractLoader/VIDEO:property\"}}{{/crossLink}}.\n\t * @method canLoadItem\n\t * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load.\n\t * @returns {Boolean} Whether the loader can load the item.\n\t * @static\n\t */\n\ts.canLoadItem = function (item) {\n\t\treturn item.type == createjs.AbstractLoader.VIDEO;\n\t};\n\n\tcreatejs.VideoLoader = createjs.promote(VideoLoader, \"AbstractMediaLoader\");\n\n}());\n\n//##############################################################################\n// SpriteSheetLoader.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t// constructor\n\t/**\n\t * A loader for EaselJS SpriteSheets. Images inside the spritesheet definition are loaded before the loader\n\t * completes. To load SpriteSheets using JSONP, specify a {{#crossLink \"LoadItem/callback:property\"}}{{/crossLink}}\n\t * as part of the {{#crossLink \"LoadItem\"}}{{/crossLink}}. Note that the {{#crossLink \"JSONLoader\"}}{{/crossLink}}\n\t * and {{#crossLink \"JSONPLoader\"}}{{/crossLink}} are higher priority loaders, so SpriteSheets must\n\t * set the {{#crossLink \"LoadItem\"}}{{/crossLink}} {{#crossLink \"LoadItem/type:property\"}}{{/crossLink}} property\n\t * to {{#crossLink \"AbstractLoader/SPRITESHEET:property\"}}{{/crossLink}}.\n\t *\n\t * The {{#crossLink \"LoadItem\"}}{{/crossLink}} {{#crossLink \"LoadItem/crossOrigin:property\"}}{{/crossLink}} as well\n\t * as the {{#crossLink \"LoadQueue's\"}}{{/crossLink}} `basePath` argument and {{#crossLink \"LoadQueue/_preferXHR\"}}{{/crossLink}}\n\t * property supplied to the {{#crossLink \"LoadQueue\"}}{{/crossLink}} are passed on to the sub-manifest that loads\n\t * the SpriteSheet images.\n\t *\n\t * Note that the SpriteSheet JSON does not respect the {{#crossLink \"LoadQueue/_preferXHR:property\"}}{{/crossLink}}\n\t * property, which should instead be determined by the presence of a {{#crossLink \"LoadItem/callback:property\"}}{{/crossLink}}\n\t * property on the SpriteSheet load item. This is because the JSON loaded will have a different format depending on\n\t * if it is loaded as JSON, so just changing `preferXHR` is not enough to change how it is loaded.\n\t * @class SpriteSheetLoader\n\t * @param {LoadItem|Object} loadItem\n\t * @extends AbstractLoader\n\t * @constructor\n\t */\n\tfunction SpriteSheetLoader(loadItem, preferXHR) {\n\t\tthis.AbstractLoader_constructor(loadItem, preferXHR, createjs.AbstractLoader.SPRITESHEET);\n\n\t\t// protected properties\n\t\t/**\n\t\t * An internal queue which loads the SpriteSheet's images.\n\t\t * @method _manifestQueue\n\t\t * @type {LoadQueue}\n\t\t * @private\n\t\t */\n\t\tthis._manifestQueue = null;\n\t}\n\n\tvar p = createjs.extend(SpriteSheetLoader, createjs.AbstractLoader);\n\tvar s = SpriteSheetLoader;\n\n\t// static properties\n\t/**\n\t * The amount of progress that the manifest itself takes up.\n\t * @property SPRITESHEET_PROGRESS\n\t * @type {number}\n\t * @default 0.25 (25%)\n\t * @private\n\t * @static\n\t */\n\ts.SPRITESHEET_PROGRESS = 0.25;\n\n\t// static methods\n\t/**\n\t * Determines if the loader can load a specific item. This loader can only load items that are of type\n\t * {{#crossLink \"AbstractLoader/SPRITESHEET:property\"}}{{/crossLink}}\n\t * @method canLoadItem\n\t * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load.\n\t * @returns {Boolean} Whether the loader can load the item.\n\t * @static\n\t */\n\ts.canLoadItem = function (item) {\n\t\treturn item.type == createjs.AbstractLoader.SPRITESHEET;\n\t};\n\n\t// public methods\n\tp.destroy = function() {\n\t\tthis.AbstractLoader_destroy;\n\t\tthis._manifestQueue.close();\n\t};\n\n\t// protected methods\n\tp._createRequest = function() {\n\t\tvar callback = this._item.callback;\n\t\tif (callback != null) {\n\t\t\tthis._request = new createjs.JSONPLoader(this._item);\n\t\t} else {\n\t\t\tthis._request = new createjs.JSONLoader(this._item);\n\t\t}\n\t};\n\n\tp.handleEvent = function (event) {\n\t\tswitch (event.type) {\n\t\t\tcase \"complete\":\n\t\t\t\tthis._rawResult = event.target.getResult(true);\n\t\t\t\tthis._result = event.target.getResult();\n\t\t\t\tthis._sendProgress(s.SPRITESHEET_PROGRESS);\n\t\t\t\tthis._loadManifest(this._result);\n\t\t\t\treturn;\n\t\t\tcase \"progress\":\n\t\t\t\tevent.loaded *= s.SPRITESHEET_PROGRESS;\n\t\t\t\tthis.progress = event.loaded / event.total;\n\t\t\t\tif (isNaN(this.progress) || this.progress == Infinity) { this.progress = 0; }\n\t\t\t\tthis._sendProgress(event);\n\t\t\t\treturn;\n\t\t}\n\t\tthis.AbstractLoader_handleEvent(event);\n\t};\n\n\t/**\n\t * Create and load the images once the SpriteSheet JSON has been loaded.\n\t * @method _loadManifest\n\t * @param {Object} json\n\t * @private\n\t */\n\tp._loadManifest = function (json) {\n\t\tif (json && json.images) {\n\t\t\tvar queue = this._manifestQueue = new createjs.LoadQueue(this._preferXHR, this._item.path, this._item.crossOrigin);\n\t\t\tqueue.on(\"complete\", this._handleManifestComplete, this, true);\n\t\t\tqueue.on(\"fileload\", this._handleManifestFileLoad, this);\n\t\t\tqueue.on(\"progress\", this._handleManifestProgress, this);\n\t\t\tqueue.on(\"error\", this._handleManifestError, this, true);\n\t\t\tqueue.loadManifest(json.images);\n\t\t}\n\t};\n\n\t/**\n\t * An item from the {{#crossLink \"_manifestQueue:property\"}}{{/crossLink}} has completed.\n\t * @method _handleManifestFileLoad\n\t * @param {Event} event\n\t * @private\n\t */\n\tp._handleManifestFileLoad = function (event) {\n\t\tvar image = event.result;\n\t\tif (image != null) {\n\t\t\tvar images = this.getResult().images;\n\t\t\tvar pos = images.indexOf(event.item.src);\n\t\t\timages[pos] = image;\n\t\t}\n\t};\n\n\t/**\n\t * The images have completed loading. This triggers the {{#crossLink \"AbstractLoader/complete:event\"}}{{/crossLink}}\n\t * {{#crossLink \"Event\"}}{{/crossLink}} from the SpriteSheetLoader.\n\t * @method _handleManifestComplete\n\t * @param {Event} event\n\t * @private\n\t */\n\tp._handleManifestComplete = function (event) {\n\t\tthis._result = new createjs.SpriteSheet(this._result);\n\t\tthis._loadedItems = this._manifestQueue.getItems(true);\n\t\tthis._sendComplete();\n\t};\n\n\t/**\n\t * The images {{#crossLink \"LoadQueue\"}}{{/crossLink}} has reported progress.\n\t * @method _handleManifestProgress\n\t * @param {ProgressEvent} event\n\t * @private\n\t */\n\tp._handleManifestProgress = function (event) {\n\t\tthis.progress = event.progress * (1 - s.SPRITESHEET_PROGRESS) + s.SPRITESHEET_PROGRESS;\n\t\tthis._sendProgress(this.progress);\n\t};\n\n\t/**\n\t * An image has reported an error.\n\t * @method _handleManifestError\n\t * @param {ErrorEvent} event\n\t * @private\n\t */\n\tp._handleManifestError = function (event) {\n\t\tvar newEvent = new createjs.Event(\"fileerror\");\n\t\tnewEvent.item = event.data;\n\t\tthis.dispatchEvent(newEvent);\n\t};\n\n\tcreatejs.SpriteSheetLoader = createjs.promote(SpriteSheetLoader, \"AbstractLoader\");\n\n}());\n\n//##############################################################################\n// SVGLoader.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t// constructor\n\t/**\n\t * A loader for SVG files.\n\t * @class SVGLoader\n\t * @param {LoadItem|Object} loadItem\n\t * @param {Boolean} preferXHR\n\t * @extends AbstractLoader\n\t * @constructor\n\t */\n\tfunction SVGLoader(loadItem, preferXHR) {\n\t\tthis.AbstractLoader_constructor(loadItem, preferXHR, createjs.AbstractLoader.SVG);\n\n\t\t// public properties\n\t\tthis.resultFormatter = this._formatResult;\n\n\t\t// protected properties\n\t\tthis._tagSrcAttribute = \"data\";\n\n\t\tif (preferXHR) {\n\t\t\tthis.setTag(document.createElement(\"svg\"));\n\t\t} else {\n\t\t\tthis.setTag(document.createElement(\"object\"));\n\t\t\tthis.getTag().type = \"image/svg+xml\";\n\t\t}\n\t};\n\n\tvar p = createjs.extend(SVGLoader, createjs.AbstractLoader);\n\tvar s = SVGLoader;\n\n\t// static methods\n\t/**\n\t * Determines if the loader can load a specific item. This loader can only load items that are of type\n\t * {{#crossLink \"AbstractLoader/SVG:property\"}}{{/crossLink}}\n\t * @method canLoadItem\n\t * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load.\n\t * @returns {Boolean} Whether the loader can load the item.\n\t * @static\n\t */\n\ts.canLoadItem = function (item) {\n\t\treturn item.type == createjs.AbstractLoader.SVG;\n\t};\n\n\t// protected methods\n\t/**\n\t * The result formatter for SVG files.\n\t * @method _formatResult\n\t * @param {AbstractLoader} loader\n\t * @returns {Object}\n\t * @private\n\t */\n\tp._formatResult = function (loader) {\n\t\t// mime should be image/svg+xml, but Opera requires text/xml\n\t\tvar xml = createjs.DataUtils.parseXML(loader.getResult(true), \"text/xml\");\n\t\tvar tag = loader.getTag();\n\n\t\tif (!this._preferXHR && document.body.contains(tag)) {\n\t\t\tdocument.body.removeChild(tag);\n\t\t}\n\n\t\tif (xml.documentElement != null) {\n\t\t\ttag.appendChild(xml.documentElement);\n\t\t\ttag.style.visibility = \"visible\";\n\t\t\treturn tag;\n\t\t} else { // For browsers that don't support SVG, just give them the XML. (IE 9-8)\n\t\t\treturn xml;\n\t\t}\n\t};\n\n\tcreatejs.SVGLoader = createjs.promote(SVGLoader, \"AbstractLoader\");\n\n}());\n\n//##############################################################################\n// XMLLoader.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t// constructor\n\t/**\n\t * A loader for CSS files.\n\t * @class XMLLoader\n\t * @param {LoadItem|Object} loadItem\n\t * @extends AbstractLoader\n\t * @constructor\n\t */\n\tfunction XMLLoader(loadItem) {\n\t\tthis.AbstractLoader_constructor(loadItem, true, createjs.AbstractLoader.XML);\n\n\t\t// public properties\n\t\tthis.resultFormatter = this._formatResult;\n\t};\n\n\tvar p = createjs.extend(XMLLoader, createjs.AbstractLoader);\n\tvar s = XMLLoader;\n\n\t// static methods\n\t/**\n\t * Determines if the loader can load a specific item. This loader can only load items that are of type\n\t * {{#crossLink \"AbstractLoader/XML:property\"}}{{/crossLink}}.\n\t * @method canLoadItem\n\t * @param {LoadItem|Object} item The LoadItem that a LoadQueue is trying to load.\n\t * @returns {Boolean} Whether the loader can load the item.\n\t * @static\n\t */\n\ts.canLoadItem = function (item) {\n\t\treturn item.type == createjs.AbstractLoader.XML;\n\t};\n\n\t// protected methods\n\t/**\n\t * The result formatter for XML files.\n\t * @method _formatResult\n\t * @param {AbstractLoader} loader\n\t * @returns {XMLDocument}\n\t * @private\n\t */\n\tp._formatResult = function (loader) {\n\t\treturn createjs.DataUtils.parseXML(loader.getResult(true), \"text/xml\");\n\t};\n\n\tcreatejs.XMLLoader = createjs.promote(XMLLoader, \"AbstractLoader\");\n\n}());\n\n//##############################################################################\n// version.js\n//##############################################################################\n\n(function () {\n\n\t/**\n\t * Static class holding library specific information such as the version and buildDate of the library.\n\t * The SoundJS class has been renamed {{#crossLink \"Sound\"}}{{/crossLink}}. Please see {{#crossLink \"Sound\"}}{{/crossLink}}\n\t * for information on using sound.\n\t * @class SoundJS\n\t **/\n\tvar s = createjs.SoundJS = createjs.SoundJS || {};\n\n\t/**\n\t * The version string for this release.\n\t * @property version\n\t * @type String\n\t * @static\n\t **/\n\ts.version = /*=version*/\"0.6.2\"; // injected by build process\n\n\t/**\n\t * The build date for this release in UTC format.\n\t * @property buildDate\n\t * @type String\n\t * @static\n\t **/\n\ts.buildDate = /*=date*/\"Thu, 26 Nov 2015 20:44:31 GMT\"; // injected by build process\n\n})();\n\n//##############################################################################\n// IndexOf.js\n//##############################################################################\n\n/**\n * @class Utility Methods\n */\n\n/**\n * Finds the first occurrence of a specified value searchElement in the passed in array, and returns the index of\n * that value. Returns -1 if value is not found.\n *\n * var i = createjs.indexOf(myArray, myElementToFind);\n *\n * @method indexOf\n * @param {Array} array Array to search for searchElement\n * @param searchElement Element to find in array.\n * @return {Number} The first index of searchElement in array.\n */\ncreatejs.indexOf = function (array, searchElement){\n\t\"use strict\";\n\n\tfor (var i = 0,l=array.length; i < l; i++) {\n\t\tif (searchElement === array[i]) {\n\t\t\treturn i;\n\t\t}\n\t}\n\treturn -1;\n};\n\n//##############################################################################\n// Proxy.js\n//##############################################################################\n\n/**\n * Various utilities that the CreateJS Suite uses. Utilities are created as separate files, and will be available on the\n * createjs namespace directly.\n *\n * Example
\n *\n * myObject.addEventListener(\"change\", createjs.proxy(myMethod, scope));\n *\n * @class Utility Methods\n * @main Utility Methods\n */\n\n(function() {\n\t\"use strict\";\n\n\t/**\n\t * A function proxy for methods. By default, JavaScript methods do not maintain scope, so passing a method as a\n\t * callback will result in the method getting called in the scope of the caller. Using a proxy ensures that the\n\t * method gets called in the correct scope.\n\t *\n\t * Additional arguments can be passed that will be applied to the function when it is called.\n\t *\n\t * Example
\n\t *\n\t * myObject.addEventListener(\"event\", createjs.proxy(myHandler, this, arg1, arg2));\n\t *\n\t * function myHandler(arg1, arg2) {\n\t * // This gets called when myObject.myCallback is executed.\n\t * }\n\t *\n\t * @method proxy\n\t * @param {Function} method The function to call\n\t * @param {Object} scope The scope to call the method name on\n\t * @param {mixed} [arg] * Arguments that are appended to the callback for additional params.\n\t * @public\n\t * @static\n\t */\n\tcreatejs.proxy = function (method, scope) {\n\t\tvar aArgs = Array.prototype.slice.call(arguments, 2);\n\t\treturn function () {\n\t\t\treturn method.apply(scope, Array.prototype.slice.call(arguments, 0).concat(aArgs));\n\t\t};\n\t}\n\n}());\n\n//##############################################################################\n// BrowserDetect.js\n//##############################################################################\n\n/**\n * @class Utility Methods\n */\n(function() {\n\t\"use strict\";\n\n\t/**\n\t * An object that determines the current browser, version, operating system, and other environment\n\t * variables via user agent string.\n\t *\n\t * Used for audio because feature detection is unable to detect the many limitations of mobile devices.\n\t *\n\t * Example
\n\t *\n\t * if (createjs.BrowserDetect.isIOS) { // do stuff }\n\t *\n\t * @property BrowserDetect\n\t * @type {Object}\n\t * @param {Boolean} isFirefox True if our browser is Firefox.\n\t * @param {Boolean} isOpera True if our browser is opera.\n\t * @param {Boolean} isChrome True if our browser is Chrome. Note that Chrome for Android returns true, but is a\n\t * completely different browser with different abilities.\n\t * @param {Boolean} isIOS True if our browser is safari for iOS devices (iPad, iPhone, and iPod).\n\t * @param {Boolean} isAndroid True if our browser is Android.\n\t * @param {Boolean} isBlackberry True if our browser is Blackberry.\n\t * @constructor\n\t * @static\n\t */\n\tfunction BrowserDetect() {\n\t\tthrow \"BrowserDetect cannot be instantiated\";\n\t};\n\n\tvar agent = BrowserDetect.agent = window.navigator.userAgent;\n\tBrowserDetect.isWindowPhone = (agent.indexOf(\"IEMobile\") > -1) || (agent.indexOf(\"Windows Phone\") > -1);\n\tBrowserDetect.isFirefox = (agent.indexOf(\"Firefox\") > -1);\n\tBrowserDetect.isOpera = (window.opera != null);\n\tBrowserDetect.isChrome = (agent.indexOf(\"Chrome\") > -1); // NOTE that Chrome on Android returns true but is a completely different browser with different abilities\n\tBrowserDetect.isIOS = (agent.indexOf(\"iPod\") > -1 || agent.indexOf(\"iPhone\") > -1 || agent.indexOf(\"iPad\") > -1) && !BrowserDetect.isWindowPhone;\n\tBrowserDetect.isAndroid = (agent.indexOf(\"Android\") > -1) && !BrowserDetect.isWindowPhone;\n\tBrowserDetect.isBlackberry = (agent.indexOf(\"Blackberry\") > -1);\n\n\tcreatejs.BrowserDetect = BrowserDetect;\n\n}());\n\n//##############################################################################\n// AudioSprite.js\n//##############################################################################\n\n// NOTE this is \"Class\" is purely to document audioSprite Setup and usage.\n\n\n/**\n * Note: AudioSprite is not a class, but its usage is easily lost in the documentation, so it has been called\n * out here for quick reference.\n *\n * Audio sprites are much like CSS sprites or image sprite sheets: multiple audio assets grouped into a single file.\n * Audio sprites work around limitations in certain browsers, where only a single sound can be loaded and played at a\n * time. We recommend at least 300ms of silence between audio clips to deal with HTML audio tag inaccuracy, and to prevent\n * accidentally playing bits of the neighbouring clips.\n *\n * Benefits of Audio Sprites:\n * \n * - More robust support for older browsers and devices that only allow a single audio instance, such as iOS 5.
\n * - They provide a work around for the Internet Explorer 9 audio tag limit, which restricts how many different\n * sounds that could be loaded at once.
\n * - Faster loading by only requiring a single network request for several sounds, especially on mobile devices\n * where the network round trip for each file can add significant latency.
\n *
\n *\n * Drawbacks of Audio Sprites\n * \n * - No guarantee of smooth looping when using HTML or Flash audio. If you have a track that needs to loop\n * \t\tsmoothly and you are supporting non-web audio browsers, do not use audio sprites for that sound if you can avoid\n * \t\tit.
\n * - No guarantee that HTML audio will play back immediately, especially the first time. In some browsers\n * (Chrome!), HTML audio will only load enough to play through at the current download speed – so we rely on the\n * `canplaythrough` event to determine if the audio is loaded. Since audio sprites must jump ahead to play specific\n * sounds, the audio may not yet have downloaded fully.
\n * - Audio sprites share the same core source, so if you have a sprite with 5 sounds and are limited to 2\n * \t\tconcurrently playing instances, you can only play 2 of the sounds at the same time.
\n *
\n *\n * Example
\n *\n *\t\tcreatejs.Sound.initializeDefaultPlugins();\n *\t\tvar assetsPath = \"./assets/\";\n *\t\tvar sounds = [{\n *\t\t\tsrc:\"MyAudioSprite.ogg\", data: {\n *\t\t\t\taudioSprite: [\n *\t\t\t\t\t{id:\"sound1\", startTime:0, duration:500},\n *\t\t\t\t\t{id:\"sound2\", startTime:1000, duration:400},\n *\t\t\t\t\t{id:\"sound3\", startTime:1700, duration: 1000}\n *\t\t\t\t]}\n *\t\t\t}\n *\t\t];\n *\t\tcreatejs.Sound.alternateExtensions = [\"mp3\"];\n *\t\tcreatejs.Sound.on(\"fileload\", loadSound);\n *\t\tcreatejs.Sound.registerSounds(sounds, assetsPath);\n *\t\t// after load is complete\n *\t\tcreatejs.Sound.play(\"sound2\");\n *\n * You can also create audio sprites on the fly by setting the startTime and duration when creating an new AbstractSoundInstance.\n *\n * \t\tcreatejs.Sound.play(\"MyAudioSprite\", {startTime: 1000, duration: 400});\n *\n * The excellent CreateJS community has created a tool to create audio sprites, available at\n * https://github.com/tonistiigi/audiosprite,\n * as well as a jsfiddle to convert the output\n * to SoundJS format.\n *\n * @class AudioSprite\n * @since 0.6.0\n */\n\n//##############################################################################\n// PlayPropsConfig.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\t/**\n\t * A class to store the optional play properties passed in {{#crossLink \"Sound/play\"}}{{/crossLink}} and\n\t * {{#crossLink \"AbstractSoundInstance/play\"}}{{/crossLink}} calls.\n\t *\n\t * Optional Play Properties Include:\n\t * \n\t * - interrupt - How to interrupt any currently playing instances of audio with the same source,\n\t * if the maximum number of instances of the sound are already playing. Values are defined as
INTERRUPT_TYPE\n\t * constants on the Sound class, with the default defined by {{#crossLink \"Sound/defaultInterruptBehavior:property\"}}{{/crossLink}}. \n\t * - delay - The amount of time to delay the start of audio playback, in milliseconds.
\n\t * - offset - The offset from the start of the audio to begin playback, in milliseconds.
\n\t * - loop - How many times the audio loops when it reaches the end of playback. The default is 0 (no\n\t * loops), and -1 can be used for infinite playback.
\n\t * - volume - The volume of the sound, between 0 and 1. Note that the master volume is applied\n\t * against the individual volume.
\n\t * - pan - The left-right pan of the sound (if supported), between -1 (left) and 1 (right).
\n\t * - startTime - To create an audio sprite (with duration), the initial offset to start playback and loop from, in milliseconds.
\n\t * - duration - To create an audio sprite (with startTime), the amount of time to play the clip for, in milliseconds.
\n\t *
\n\t *\n\t * Example
\n\t *\n\t * \tvar ppc = new createjs.PlayPropsConfig().set({interrupt: createjs.Sound.INTERRUPT_ANY, loop: -1, volume: 0.5})\n\t * \tcreatejs.Sound.play(\"mySound\", ppc);\n\t * \tmySoundInstance.play(ppc);\n\t *\n\t * @class PlayPropsConfig\n\t * @constructor\n\t * @since 0.6.1\n\t */\n\t// TODO think of a better name for this class\n\tvar PlayPropsConfig = function () {\n// Public Properties\n\t\t/**\n\t\t * How to interrupt any currently playing instances of audio with the same source,\n\t\t * if the maximum number of instances of the sound are already playing. Values are defined as\n\t\t * INTERRUPT_TYPE constants on the Sound class, with the default defined by\n\t\t * {{#crossLink \"Sound/defaultInterruptBehavior:property\"}}{{/crossLink}}.\n\t\t * @property interrupt\n\t\t * @type {string}\n\t\t * @default null\n\t\t */\n\t\tthis.interrupt = null;\n\n\t\t/**\n\t\t * The amount of time to delay the start of audio playback, in milliseconds.\n\t\t * @property delay\n\t\t * @type {Number}\n\t\t * @default null\n\t\t */\n\t\tthis.delay = null;\n\n\t\t/**\n\t\t * The offset from the start of the audio to begin playback, in milliseconds.\n\t\t * @property offset\n\t\t * @type {number}\n\t\t * @default null\n\t\t */\n\t\tthis.offset = null;\n\n\t\t/**\n\t\t * How many times the audio loops when it reaches the end of playback. The default is 0 (no\n\t\t * loops), and -1 can be used for infinite playback.\n\t\t * @property loop\n\t\t * @type {number}\n\t\t * @default null\n\t\t */\n\t\tthis.loop = null;\n\n\t\t/**\n\t\t * The volume of the sound, between 0 and 1. Note that the master volume is applied\n\t\t * against the individual volume.\n\t\t * @property volume\n\t\t * @type {number}\n\t\t * @default null\n\t\t */\n\t\tthis.volume = null;\n\n\t\t/**\n\t\t * The left-right pan of the sound (if supported), between -1 (left) and 1 (right).\n\t\t * @property pan\n\t\t * @type {number}\n\t\t * @default null\n\t\t */\n\t\tthis.pan = null;\n\n\t\t/**\n\t\t * Used to create an audio sprite (with duration), the initial offset to start playback and loop from, in milliseconds.\n\t\t * @property startTime\n\t\t * @type {number}\n\t\t * @default null\n\t\t */\n\t\tthis.startTime = null;\n\n\t\t/**\n\t\t * Used to create an audio sprite (with startTime), the amount of time to play the clip for, in milliseconds.\n\t\t * @property duration\n\t\t * @type {number}\n\t\t * @default null\n\t\t */\n\t\tthis.duration = null;\n\t};\n\tvar p = PlayPropsConfig.prototype = {};\n\tvar s = PlayPropsConfig;\n\n\n// Static Methods\n\t/**\n\t * Creates a PlayPropsConfig from another PlayPropsConfig or an Object.\n\t *\n\t * @method create\n\t * @param {PlayPropsConfig|Object} value The play properties\n\t * @returns {PlayPropsConfig}\n\t * @static\n\t */\n\ts.create = function (value) {\n\t\tif (value instanceof s || value instanceof Object) {\n\t\t\tvar ppc = new createjs.PlayPropsConfig();\n\t\t\tppc.set(value);\n\t\t\treturn ppc;\n\t\t} else {\n\t\t\tthrow new Error(\"Type not recognized.\");\n\t\t}\n\t};\n\n// Public Methods\n\t/**\n\t * Provides a chainable shortcut method for setting a number of properties on the instance.\n\t *\n\t * Example
\n\t *\n\t * var PlayPropsConfig = new createjs.PlayPropsConfig().set({loop:-1, volume:0.7});\n\t *\n\t * @method set\n\t * @param {Object} props A generic object containing properties to copy to the PlayPropsConfig instance.\n\t * @return {PlayPropsConfig} Returns the instance the method is called on (useful for chaining calls.)\n\t*/\n\tp.set = function(props) {\n\t\tfor (var n in props) { this[n] = props[n]; }\n\t\treturn this;\n\t};\n\n\tp.toString = function() {\n\t\treturn \"[PlayPropsConfig]\";\n\t};\n\n\tcreatejs.PlayPropsConfig = s;\n\n}());\n\n//##############################################################################\n// Sound.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t/**\n\t * The Sound class is the public API for creating sounds, controlling the overall sound levels, and managing plugins.\n\t * All Sound APIs on this class are static.\n\t *\n\t * Registering and Preloading
\n\t * Before you can play a sound, it must be registered. You can do this with {{#crossLink \"Sound/registerSound\"}}{{/crossLink}},\n\t * or register multiple sounds using {{#crossLink \"Sound/registerSounds\"}}{{/crossLink}}. If you don't register a\n\t * sound prior to attempting to play it using {{#crossLink \"Sound/play\"}}{{/crossLink}} or create it using {{#crossLink \"Sound/createInstance\"}}{{/crossLink}},\n\t * the sound source will be automatically registered but playback will fail as the source will not be ready. If you use\n\t * PreloadJS, registration is handled for you when the sound is\n\t * preloaded. It is recommended to preload sounds either internally using the register functions or externally using\n\t * PreloadJS so they are ready when you want to use them.\n\t *\n\t * Playback
\n\t * To play a sound once it's been registered and preloaded, use the {{#crossLink \"Sound/play\"}}{{/crossLink}} method.\n\t * This method returns a {{#crossLink \"AbstractSoundInstance\"}}{{/crossLink}} which can be paused, resumed, muted, etc.\n\t * Please see the {{#crossLink \"AbstractSoundInstance\"}}{{/crossLink}} documentation for more on the instance control APIs.\n\t *\n\t * Plugins
\n\t * By default, the {{#crossLink \"WebAudioPlugin\"}}{{/crossLink}} or the {{#crossLink \"HTMLAudioPlugin\"}}{{/crossLink}}\n\t * are used (when available), although developers can change plugin priority or add new plugins (such as the\n\t * provided {{#crossLink \"FlashAudioPlugin\"}}{{/crossLink}}). Please see the {{#crossLink \"Sound\"}}{{/crossLink}} API\n\t * methods for more on the playback and plugin APIs. To install plugins, or specify a different plugin order, see\n\t * {{#crossLink \"Sound/installPlugins\"}}{{/crossLink}}.\n\t *\n\t * Example
\n\t *\n\t * createjs.FlashAudioPlugin.swfPath = \"../src/soundjs/flashaudio\";\n\t * createjs.Sound.registerPlugins([createjs.WebAudioPlugin, createjs.FlashAudioPlugin]);\n\t * createjs.Sound.alternateExtensions = [\"mp3\"];\n\t * createjs.Sound.on(\"fileload\", this.loadHandler, this);\n\t * createjs.Sound.registerSound(\"path/to/mySound.ogg\", \"sound\");\n\t * function loadHandler(event) {\n * // This is fired for each sound that is registered.\n * var instance = createjs.Sound.play(\"sound\"); // play using id. Could also use full source path or event.src.\n * instance.on(\"complete\", this.handleComplete, this);\n * instance.volume = 0.5;\n\t * }\n\t *\n\t * The maximum number of concurrently playing instances of the same sound can be specified in the \"data\" argument\n\t * of {{#crossLink \"Sound/registerSound\"}}{{/crossLink}}. Note that if not specified, the active plugin will apply\n\t * a default limit. Currently HTMLAudioPlugin sets a default limit of 2, while WebAudioPlugin and FlashAudioPlugin set a\n\t * default limit of 100.\n\t *\n\t * createjs.Sound.registerSound(\"sound.mp3\", \"soundId\", 4);\n\t *\n\t * Sound can be used as a plugin with PreloadJS to help preload audio properly. Audio preloaded with PreloadJS is\n\t * automatically registered with the Sound class. When audio is not preloaded, Sound will do an automatic internal\n\t * load. As a result, it may fail to play the first time play is called if the audio is not finished loading. Use\n\t * the {{#crossLink \"Sound/fileload:event\"}}{{/crossLink}} event to determine when a sound has finished internally\n\t * preloading. It is recommended that all audio is preloaded before it is played.\n\t *\n\t * var queue = new createjs.LoadQueue();\n\t *\t\tqueue.installPlugin(createjs.Sound);\n\t *\n\t * Audio Sprites
\n\t * SoundJS has added support for {{#crossLink \"AudioSprite\"}}{{/crossLink}}, available as of version 0.6.0.\n\t * For those unfamiliar with audio sprites, they are much like CSS sprites or sprite sheets: multiple audio assets\n\t * grouped into a single file.\n\t *\n\t * Example
\n\t *\n\t *\t\tvar assetsPath = \"./assets/\";\n\t *\t\tvar sounds = [{\n\t *\t\t\tsrc:\"MyAudioSprite.ogg\", data: {\n\t *\t\t\t\taudioSprite: [\n\t *\t\t\t\t\t{id:\"sound1\", startTime:0, duration:500},\n\t *\t\t\t\t\t{id:\"sound2\", startTime:1000, duration:400},\n\t *\t\t\t\t\t{id:\"sound3\", startTime:1700, duration: 1000}\n\t *\t\t\t\t]}\n \t *\t\t\t}\n\t *\t\t];\n\t *\t\tcreatejs.Sound.alternateExtensions = [\"mp3\"];\n\t *\t\tcreatejs.Sound.on(\"fileload\", loadSound);\n\t *\t\tcreatejs.Sound.registerSounds(sounds, assetsPath);\n\t *\t\t// after load is complete\n\t *\t\tcreatejs.Sound.play(\"sound2\");\n\t *\n\t * Mobile Playback
\n\t * Devices running iOS require the WebAudio context to be \"unlocked\" by playing at least one sound inside of a user-\n\t * initiated event (such as touch/click). Earlier versions of SoundJS included a \"MobileSafe\" sample, but this is no\n\t * longer necessary as of SoundJS 0.6.2.\n\t * \n\t * - \n\t * In SoundJS 0.4.1 and above, you can either initialize plugins or use the {{#crossLink \"WebAudioPlugin/playEmptySound\"}}{{/crossLink}}\n\t * method in the call stack of a user input event to manually unlock the audio context.\n\t *
\n\t * - \n\t * In SoundJS 0.6.2 and above, SoundJS will automatically listen for the first document-level \"mousedown\"\n\t * and \"touchend\" event, and unlock WebAudio. This will continue to check these events until the WebAudio\n\t * context becomes \"unlocked\" (changes from \"suspended\" to \"running\")\n\t *
\n\t * - \n\t * Both the \"mousedown\" and \"touchend\" events can be used to unlock audio in iOS9+, the \"touchstart\" event\n\t * will work in iOS8 and below. The \"touchend\" event will only work in iOS9 when the gesture is interpreted\n\t * as a \"click\", so if the user long-presses the button, it will no longer work.\n\t *
\n\t * - \n\t * When using the EaselJS Touch class,\n\t * the \"mousedown\" event will not fire when a canvas is clicked, since MouseEvents are prevented, to ensure\n\t * only touch events fire. To get around this, you can either rely on \"touchend\", or:\n\t *
\n\t * - Set the `allowDefault` property on the Touch class constructor to `true` (defaults to `false`).
\n\t * - Set the `preventSelection` property on the EaselJS `Stage` to `false`.
\n\t *
\n\t * These settings may change how your application behaves, and are not recommended.\n\t * \n\t *
\n\t *\n\t * Loading Alternate Paths and Extension-less Files
\n\t * SoundJS supports loading alternate paths and extension-less files by passing an object instead of a string for\n\t * the `src` property, which is a hash using the format `{extension:\"path\", extension2:\"path2\"}`. These labels are\n\t * how SoundJS determines if the browser will support the sound. This also enables multiple formats to live in\n\t * different folders, or on CDNs, which often has completely different filenames for each file.\n\t *\n\t * Priority is determined by the property order (first property is tried first). This is supported by both internal loading\n\t * and loading with PreloadJS.\n\t *\n\t * Note: an id is required for playback.\n\t *\n\t * Example
\n\t *\n\t *\t\tvar sounds = {path:\"./audioPath/\",\n\t * \t\t\t\tmanifest: [\n\t *\t\t\t\t{id: \"cool\", src: {mp3:\"mp3/awesome.mp3\", ogg:\"noExtensionOggFile\"}}\n\t *\t\t]};\n\t *\n\t *\t\tcreatejs.Sound.alternateExtensions = [\"mp3\"];\n\t *\t\tcreatejs.Sound.addEventListener(\"fileload\", handleLoad);\n\t *\t\tcreatejs.Sound.registerSounds(sounds);\n\t *\n\t * Known Browser and OS issues
\n\t * IE 9 HTML Audio limitations
\n\t * - There is a delay in applying volume changes to tags that occurs once playback is started. So if you have\n\t * muted all sounds, they will all play during this delay until the mute applies internally. This happens regardless of\n\t * when or how you apply the volume change, as the tag seems to need to play to apply it.
\n * - MP3 encoding will not always work for audio tags, particularly in Internet Explorer. We've found default\n\t * encoding with 64kbps works.
\n\t * - Occasionally very short samples will get cut off.
\n\t * - There is a limit to how many audio tags you can load and play at once, which appears to be determined by\n\t * hardware and browser settings. See {{#crossLink \"HTMLAudioPlugin.MAX_INSTANCES\"}}{{/crossLink}} for a safe\n\t * estimate.
\n\t *\n\t * Firefox 25 Web Audio limitations\n\t * - mp3 audio files do not load properly on all windows machines, reported\n\t * here. \n\t * For this reason it is recommended to pass another FF supported type (ie ogg) first until this bug is resolved, if\n\t * possible.
\n\n\t * Safari limitations
\n\t * - Safari requires Quicktime to be installed for audio playback.
\n\t *\n\t * iOS 6 Web Audio limitations
\n\t * - Sound is initially locked, and must be unlocked via a user-initiated event. Please see the section on\n\t * Mobile Playback above.
\n\t * - A bug exists that will distort un-cached web audio when a video element is present in the DOM that has audio\n\t * at a different sampleRate.
\n\t *
\n\t *\n\t * Android HTML Audio limitations
\n\t * - We have no control over audio volume. Only the user can set volume on their device.
\n\t * - We can only play audio inside a user event (touch/click). This currently means you cannot loop sound or use\n\t * a delay.
\n\t *\n\t * Web Audio and PreloadJS
\n\t * - Web Audio must be loaded through XHR, therefore when used with PreloadJS, tag loading is not possible.\n\t * This means that tag loading can not be used to avoid cross domain issues.
\n\t *\n\t * @class Sound\n\t * @static\n\t * @uses EventDispatcher\n\t */\n\tfunction Sound() {\n\t\tthrow \"Sound cannot be instantiated\";\n\t}\n\n\tvar s = Sound;\n\n\n// Static Properties\n\t/**\n\t * The interrupt value to interrupt any currently playing instance with the same source, if the maximum number of\n\t * instances of the sound are already playing.\n\t * @property INTERRUPT_ANY\n\t * @type {String}\n\t * @default any\n\t * @static\n\t */\n\ts.INTERRUPT_ANY = \"any\";\n\n\t/**\n\t * The interrupt value to interrupt the earliest currently playing instance with the same source that progressed the\n\t * least distance in the audio track, if the maximum number of instances of the sound are already playing.\n\t * @property INTERRUPT_EARLY\n\t * @type {String}\n\t * @default early\n\t * @static\n\t */\n\ts.INTERRUPT_EARLY = \"early\";\n\n\t/**\n\t * The interrupt value to interrupt the currently playing instance with the same source that progressed the most\n\t * distance in the audio track, if the maximum number of instances of the sound are already playing.\n\t * @property INTERRUPT_LATE\n\t * @type {String}\n\t * @default late\n\t * @static\n\t */\n\ts.INTERRUPT_LATE = \"late\";\n\n\t/**\n\t * The interrupt value to not interrupt any currently playing instances with the same source, if the maximum number of\n\t * instances of the sound are already playing.\n\t * @property INTERRUPT_NONE\n\t * @type {String}\n\t * @default none\n\t * @static\n\t */\n\ts.INTERRUPT_NONE = \"none\";\n\n\t/**\n\t * Defines the playState of an instance that is still initializing.\n\t * @property PLAY_INITED\n\t * @type {String}\n\t * @default playInited\n\t * @static\n\t */\n\ts.PLAY_INITED = \"playInited\";\n\n\t/**\n\t * Defines the playState of an instance that is currently playing or paused.\n\t * @property PLAY_SUCCEEDED\n\t * @type {String}\n\t * @default playSucceeded\n\t * @static\n\t */\n\ts.PLAY_SUCCEEDED = \"playSucceeded\";\n\n\t/**\n\t * Defines the playState of an instance that was interrupted by another instance.\n\t * @property PLAY_INTERRUPTED\n\t * @type {String}\n\t * @default playInterrupted\n\t * @static\n\t */\n\ts.PLAY_INTERRUPTED = \"playInterrupted\";\n\n\t/**\n\t * Defines the playState of an instance that completed playback.\n\t * @property PLAY_FINISHED\n\t * @type {String}\n\t * @default playFinished\n\t * @static\n\t */\n\ts.PLAY_FINISHED = \"playFinished\";\n\n\t/**\n\t * Defines the playState of an instance that failed to play. This is usually caused by a lack of available channels\n\t * when the interrupt mode was \"INTERRUPT_NONE\", the playback stalled, or the sound could not be found.\n\t * @property PLAY_FAILED\n\t * @type {String}\n\t * @default playFailed\n\t * @static\n\t */\n\ts.PLAY_FAILED = \"playFailed\";\n\n\t/**\n\t * A list of the default supported extensions that Sound will try to play. Plugins will check if the browser\n\t * can play these types, so modifying this list before a plugin is initialized will allow the plugins to try to\n\t * support additional media types.\n\t *\n\t * NOTE this does not currently work for {{#crossLink \"FlashAudioPlugin\"}}{{/crossLink}}.\n\t *\n\t * More details on file formats can be found at http://en.wikipedia.org/wiki/Audio_file_format.
\n\t * A very detailed list of file formats can be found at http://www.fileinfo.com/filetypes/audio.\n\t * @property SUPPORTED_EXTENSIONS\n\t * @type {Array[String]}\n\t * @default [\"mp3\", \"ogg\", \"opus\", \"mpeg\", \"wav\", \"m4a\", \"mp4\", \"aiff\", \"wma\", \"mid\"]\n\t * @since 0.4.0\n\t * @static\n\t */\n\ts.SUPPORTED_EXTENSIONS = [\"mp3\", \"ogg\", \"opus\", \"mpeg\", \"wav\", \"m4a\", \"mp4\", \"aiff\", \"wma\", \"mid\"];\n\n\t/**\n\t * Some extensions use another type of extension support to play (one of them is a codex). This allows you to map\n\t * that support so plugins can accurately determine if an extension is supported. Adding to this list can help\n\t * plugins determine more accurately if an extension is supported.\n\t *\n \t * A useful list of extensions for each format can be found at http://html5doctor.com/html5-audio-the-state-of-play/.\n\t * @property EXTENSION_MAP\n\t * @type {Object}\n\t * @since 0.4.0\n\t * @default {m4a:\"mp4\"}\n\t * @static\n\t */\n\ts.EXTENSION_MAP = {\n\t\tm4a:\"mp4\"\n\t};\n\n\t/**\n\t * The RegExp pattern used to parse file URIs. This supports simple file names, as well as full domain URIs with\n\t * query strings. The resulting match is: protocol:$1 domain:$2 path:$3 file:$4 extension:$5 query:$6.\n\t * @property FILE_PATTERN\n\t * @type {RegExp}\n\t * @static\n\t * @protected\n\t */\n\ts.FILE_PATTERN = /^(?:(\\w+:)\\/{2}(\\w+(?:\\.\\w+)*\\/?))?([/.]*?(?:[^?]+)?\\/)?((?:[^/?]+)\\.(\\w+))(?:\\?(\\S+)?)?$/;\n\n\n// Class Public properties\n\t/**\n\t * Determines the default behavior for interrupting other currently playing instances with the same source, if the\n\t * maximum number of instances of the sound are already playing. Currently the default is {{#crossLink \"Sound/INTERRUPT_NONE:property\"}}{{/crossLink}}\n\t * but this can be set and will change playback behavior accordingly. This is only used when {{#crossLink \"Sound/play\"}}{{/crossLink}}\n\t * is called without passing a value for interrupt.\n\t * @property defaultInterruptBehavior\n\t * @type {String}\n\t * @default Sound.INTERRUPT_NONE, or \"none\"\n\t * @static\n\t * @since 0.4.0\n\t */\n\ts.defaultInterruptBehavior = s.INTERRUPT_NONE; // OJR does s.INTERRUPT_ANY make more sense as default? Needs game dev testing to see which case makes more sense.\n\n\t/**\n\t * An array of extensions to attempt to use when loading sound, if the default is unsupported by the active plugin.\n\t * These are applied in order, so if you try to Load Thunder.ogg in a browser that does not support ogg, and your\n\t * extensions array is [\"mp3\", \"m4a\", \"wav\"] it will check mp3 support, then m4a, then wav. The audio files need\n\t * to exist in the same location, as only the extension is altered.\n\t *\n\t * Note that regardless of which file is loaded, you can call {{#crossLink \"Sound/createInstance\"}}{{/crossLink}}\n\t * and {{#crossLink \"Sound/play\"}}{{/crossLink}} using the same id or full source path passed for loading.\n\t *\n\t * Example
\n\t *\n\t *\tvar sounds = [\n\t *\t\t{src:\"myPath/mySound.ogg\", id:\"example\"},\n\t *\t];\n\t *\tcreatejs.Sound.alternateExtensions = [\"mp3\"]; // now if ogg is not supported, SoundJS will try asset0.mp3\n\t *\tcreatejs.Sound.on(\"fileload\", handleLoad); // call handleLoad when each sound loads\n\t *\tcreatejs.Sound.registerSounds(sounds, assetPath);\n\t *\t// ...\n\t *\tcreatejs.Sound.play(\"myPath/mySound.ogg\"); // works regardless of what extension is supported. Note calling with ID is a better approach\n\t *\n\t * @property alternateExtensions\n\t * @type {Array}\n\t * @since 0.5.2\n\t * @static\n\t */\n\ts.alternateExtensions = [];\n\n\t/**\n\t * The currently active plugin. If this is null, then no plugin could be initialized. If no plugin was specified,\n\t * Sound attempts to apply the default plugins: {{#crossLink \"WebAudioPlugin\"}}{{/crossLink}}, followed by\n\t * {{#crossLink \"HTMLAudioPlugin\"}}{{/crossLink}}.\n\t * @property activePlugin\n\t * @type {Object}\n\t * @static\n\t */\n s.activePlugin = null;\n\n\n// class getter / setter properties\n\t/**\n\t * Set the master volume of Sound. The master volume is multiplied against each sound's individual volume. For\n\t * example, if master volume is 0.5 and a sound's volume is 0.5, the resulting volume is 0.25. To set individual\n\t * sound volume, use AbstractSoundInstance {{#crossLink \"AbstractSoundInstance/volume:property\"}}{{/crossLink}} instead.\n\t *\n\t * Example
\n\t *\n\t * createjs.Sound.volume = 0.5;\n\t *\n\t *\n\t * @property volume\n\t * @type {Number}\n\t * @default 1\n\t * @since 0.6.1\n\t */\n\ts._masterVolume = 1;\n\tObject.defineProperty(s, \"volume\", {\n\t\tget: function () {return this._masterVolume;},\n\t\tset: function (value) {\n\t\t\t\tif (Number(value) == null) {return false;}\n\t\t\t\tvalue = Math.max(0, Math.min(1, value));\n\t\t\t\ts._masterVolume = value;\n\t\t\t\tif (!this.activePlugin || !this.activePlugin.setVolume || !this.activePlugin.setVolume(value)) {\n\t\t\t\t\tvar instances = this._instances;\n\t\t\t\t\tfor (var i = 0, l = instances.length; i < l; i++) {\n\t\t\t\t\t\tinstances[i].setMasterVolume(value);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t});\n\n\t/**\n\t * Mute/Unmute all audio. Note that muted audio still plays at 0 volume. This global mute value is maintained\n\t * separately and when set will override, but not change the mute property of individual instances. To mute an individual\n\t * instance, use AbstractSoundInstance {{#crossLink \"AbstractSoundInstance/muted:property\"}}{{/crossLink}} instead.\n\t *\n\t * Example
\n\t *\n\t * createjs.Sound.muted = true;\n\t *\n\t *\n\t * @property muted\n\t * @type {Boolean}\n\t * @default false\n\t * @since 0.6.1\n\t */\n\ts._masterMute = false;\n\t// OJR references to the methods were not working, so the code had to be duplicated here\n\tObject.defineProperty(s, \"muted\", {\n\t\tget: function () {return this._masterMute;},\n\t\tset: function (value) {\n\t\t\t\tif (value == null) {return false;}\n\n\t\t\t\tthis._masterMute = value;\n\t\t\t\tif (!this.activePlugin || !this.activePlugin.setMute || !this.activePlugin.setMute(value)) {\n\t\t\t\t\tvar instances = this._instances;\n\t\t\t\t\tfor (var i = 0, l = instances.length; i < l; i++) {\n\t\t\t\t\t\tinstances[i].setMasterMute(value);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t\treturn true;\n\t\t\t}\n\t});\n\n\t/**\n\t * Get the active plugins capabilities, which help determine if a plugin can be used in the current environment,\n\t * or if the plugin supports a specific feature. Capabilities include:\n\t * \n\t * - panning: If the plugin can pan audio from left to right
\n\t * - volume; If the plugin can control audio volume.
\n\t * - tracks: The maximum number of audio tracks that can be played back at a time. This will be -1\n\t * if there is no known limit.
\n\t *
An entry for each file type in {{#crossLink \"Sound/SUPPORTED_EXTENSIONS:property\"}}{{/crossLink}}:\n\t * - mp3: If MP3 audio is supported.
\n\t * - ogg: If OGG audio is supported.
\n\t * - wav: If WAV audio is supported.
\n\t * - mpeg: If MPEG audio is supported.
\n\t * - m4a: If M4A audio is supported.
\n\t * - mp4: If MP4 audio is supported.
\n\t * - aiff: If aiff audio is supported.
\n\t * - wma: If wma audio is supported.
\n\t * - mid: If mid audio is supported.
\n\t *
\n\t *\n\t * You can get a specific capability of the active plugin using standard object notation\n\t *\n\t * Example
\n\t *\n\t * var mp3 = createjs.Sound.capabilities.mp3;\n\t *\n\t * Note this property is read only.\n\t *\n\t * @property capabilities\n\t * @type {Object}\n\t * @static\n\t * @readOnly\n\t * @since 0.6.1\n\t */\n\tObject.defineProperty(s, \"capabilities\", {\n\t\tget: function () {\n\t\t\t\t\tif (s.activePlugin == null) {return null;}\n\t\t\t\t\treturn s.activePlugin._capabilities;\n\t\t\t\t},\n\t\tset: function (value) { return false;}\n\t});\n\n\n// Class Private properties\n\t/**\n\t * Determines if the plugins have been registered. If false, the first call to play() will instantiate the default\n\t * plugins ({{#crossLink \"WebAudioPlugin\"}}{{/crossLink}}, followed by {{#crossLink \"HTMLAudioPlugin\"}}{{/crossLink}}).\n\t * If plugins have been registered, but none are applicable, then sound playback will fail.\n\t * @property _pluginsRegistered\n\t * @type {Boolean}\n\t * @default false\n\t * @static\n\t * @protected\n\t */\n\ts._pluginsRegistered = false;\n\n\t/**\n\t * Used internally to assign unique IDs to each AbstractSoundInstance.\n\t * @property _lastID\n\t * @type {Number}\n\t * @static\n\t * @protected\n\t */\n\ts._lastID = 0;\n\n\t/**\n\t * An array containing all currently playing instances. This allows Sound to control the volume, mute, and playback of\n\t * all instances when using static APIs like {{#crossLink \"Sound/stop\"}}{{/crossLink}} and {{#crossLink \"Sound/setVolume\"}}{{/crossLink}}.\n\t * When an instance has finished playback, it gets removed via the {{#crossLink \"Sound/finishedPlaying\"}}{{/crossLink}}\n\t * method. If the user replays an instance, it gets added back in via the {{#crossLink \"Sound/_beginPlaying\"}}{{/crossLink}}\n\t * method.\n\t * @property _instances\n\t * @type {Array}\n\t * @protected\n\t * @static\n\t */\n\ts._instances = [];\n\n\t/**\n\t * An object hash storing objects with sound sources, startTime, and duration via there corresponding ID.\n\t * @property _idHash\n\t * @type {Object}\n\t * @protected\n\t * @static\n\t */\n\ts._idHash = {};\n\n\t/**\n\t * An object hash that stores preloading sound sources via the parsed source that is passed to the plugin. Contains the\n\t * source, id, and data that was passed in by the user. Parsed sources can contain multiple instances of source, id,\n\t * and data.\n\t * @property _preloadHash\n\t * @type {Object}\n\t * @protected\n\t * @static\n\t */\n\ts._preloadHash = {};\n\n\t/**\n\t * An object hash storing {{#crossLink \"PlayPropsConfig\"}}{{/crossLink}} via the parsed source that is passed as defaultPlayProps in\n\t * {{#crossLink \"Sound/registerSound\"}}{{/crossLink}} and {{#crossLink \"Sound/registerSounds\"}}{{/crossLink}}.\n\t * @property _defaultPlayPropsHash\n\t * @type {Object}\n\t * @protected\n\t * @static\n\t * @since 0.6.1\n\t */\n\ts._defaultPlayPropsHash = {};\n\n\n// EventDispatcher methods:\n\ts.addEventListener = null;\n\ts.removeEventListener = null;\n\ts.removeAllEventListeners = null;\n\ts.dispatchEvent = null;\n\ts.hasEventListener = null;\n\ts._listeners = null;\n\n\tcreatejs.EventDispatcher.initialize(s); // inject EventDispatcher methods.\n\n\n// Events\n\t/**\n\t * This event is fired when a file finishes loading internally. This event is fired for each loaded sound,\n\t * so any handler methods should look up the event.src to handle a particular sound.\n\t * @event fileload\n\t * @param {Object} target The object that dispatched the event.\n\t * @param {String} type The event type.\n\t * @param {String} src The source of the sound that was loaded.\n\t * @param {String} [id] The id passed in when the sound was registered. If one was not provided, it will be null.\n\t * @param {Number|Object} [data] Any additional data associated with the item. If not provided, it will be undefined.\n\t * @since 0.4.1\n\t */\n\n\t/**\n\t * This event is fired when a file fails loading internally. This event is fired for each loaded sound,\n\t * so any handler methods should look up the event.src to handle a particular sound.\n\t * @event fileerror\n\t * @param {Object} target The object that dispatched the event.\n\t * @param {String} type The event type.\n\t * @param {String} src The source of the sound that was loaded.\n\t * @param {String} [id] The id passed in when the sound was registered. If one was not provided, it will be null.\n\t * @param {Number|Object} [data] Any additional data associated with the item. If not provided, it will be undefined.\n\t * @since 0.6.0\n\t */\n\n\n// Class Public Methods\n\t/**\n\t * Get the preload rules to allow Sound to be used as a plugin by PreloadJS.\n\t * Any load calls that have the matching type or extension will fire the callback method, and use the resulting\n\t * object, which is potentially modified by Sound. This helps when determining the correct path, as well as\n\t * registering the audio instance(s) with Sound. This method should not be called, except by PreloadJS.\n\t * @method getPreloadHandlers\n\t * @return {Object} An object containing:\n\t * - callback: A preload callback that is fired when a file is added to PreloadJS, which provides\n\t * Sound a mechanism to modify the load parameters, select the correct file format, register the sound, etc.
\n\t * - types: A list of file types that are supported by Sound (currently supports \"sound\").
\n\t * - extensions: A list of file extensions that are supported by Sound (see {{#crossLink \"Sound/SUPPORTED_EXTENSIONS:property\"}}{{/crossLink}}).
\n\t * @static\n\t * @protected\n\t */\n\ts.getPreloadHandlers = function () {\n\t\treturn {\n\t\t\tcallback:createjs.proxy(s.initLoad, s),\n\t\t\ttypes:[\"sound\"],\n\t\t\textensions:s.SUPPORTED_EXTENSIONS\n\t\t};\n\t};\n\n\t/**\n\t * Used to dispatch fileload events from internal loading.\n\t * @method _handleLoadComplete\n\t * @param event A loader event.\n\t * @protected\n\t * @static\n\t * @since 0.6.0\n\t */\n\ts._handleLoadComplete = function(event) {\n\t\tvar src = event.target.getItem().src;\n\t\tif (!s._preloadHash[src]) {return;}\n\n\t\tfor (var i = 0, l = s._preloadHash[src].length; i < l; i++) {\n\t\t\tvar item = s._preloadHash[src][i];\n\t\t\ts._preloadHash[src][i] = true;\n\n\t\t\tif (!s.hasEventListener(\"fileload\")) { continue; }\n\n\t\t\tvar event = new createjs.Event(\"fileload\");\n\t\t\tevent.src = item.src;\n\t\t\tevent.id = item.id;\n\t\t\tevent.data = item.data;\n\t\t\tevent.sprite = item.sprite;\n\n\t\t\ts.dispatchEvent(event);\n\t\t}\n\t};\n\n\t/**\n\t * Used to dispatch error events from internal preloading.\n\t * @param event\n\t * @protected\n\t * @since 0.6.0\n\t * @static\n\t */\n\ts._handleLoadError = function(event) {\n\t\tvar src = event.target.getItem().src;\n\t\tif (!s._preloadHash[src]) {return;}\n\n\t\tfor (var i = 0, l = s._preloadHash[src].length; i < l; i++) {\n\t\t\tvar item = s._preloadHash[src][i];\n\t\t\ts._preloadHash[src][i] = false;\n\n\t\t\tif (!s.hasEventListener(\"fileerror\")) { continue; }\n\n\t\t\tvar event = new createjs.Event(\"fileerror\");\n\t\t\tevent.src = item.src;\n\t\t\tevent.id = item.id;\n\t\t\tevent.data = item.data;\n\t\t\tevent.sprite = item.sprite;\n\n\t\t\ts.dispatchEvent(event);\n\t\t}\n\t};\n\n\t/**\n\t * Used by {{#crossLink \"Sound/registerPlugins\"}}{{/crossLink}} to register a Sound plugin.\n\t *\n\t * @method _registerPlugin\n\t * @param {Object} plugin The plugin class to install.\n\t * @return {Boolean} Whether the plugin was successfully initialized.\n\t * @static\n\t * @private\n\t */\n\ts._registerPlugin = function (plugin) {\n\t\t// Note: Each plugin is passed in as a class reference, but we store the activePlugin as an instance\n\t\tif (plugin.isSupported()) {\n\t\t\ts.activePlugin = new plugin();\n\t\t\treturn true;\n\t\t}\n\t\treturn false;\n\t};\n\n\t/**\n\t * Register a list of Sound plugins, in order of precedence. To register a single plugin, pass a single element in the array.\n\t *\n\t * Example
\n\t *\n\t * createjs.FlashAudioPlugin.swfPath = \"../src/soundjs/flashaudio/\";\n\t * createjs.Sound.registerPlugins([createjs.WebAudioPlugin, createjs.HTMLAudioPlugin, createjs.FlashAudioPlugin]);\n\t *\n\t * @method registerPlugins\n\t * @param {Array} plugins An array of plugins classes to install.\n\t * @return {Boolean} Whether a plugin was successfully initialized.\n\t * @static\n\t */\n\ts.registerPlugins = function (plugins) {\n\t\ts._pluginsRegistered = true;\n\t\tfor (var i = 0, l = plugins.length; i < l; i++) {\n\t\t\tif (s._registerPlugin(plugins[i])) {\n\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\t\treturn false;\n\t};\n\n\t/**\n\t * Initialize the default plugins. This method is automatically called when any audio is played or registered before\n\t * the user has manually registered plugins, and enables Sound to work without manual plugin setup. Currently, the\n\t * default plugins are {{#crossLink \"WebAudioPlugin\"}}{{/crossLink}} followed by {{#crossLink \"HTMLAudioPlugin\"}}{{/crossLink}}.\n\t *\n\t * Example
\n\t *\n\t * \tif (!createjs.initializeDefaultPlugins()) { return; }\n\t *\n\t * @method initializeDefaultPlugins\n\t * @returns {Boolean} True if a plugin was initialized, false otherwise.\n\t * @since 0.4.0\n\t * @static\n\t */\n\ts.initializeDefaultPlugins = function () {\n\t\tif (s.activePlugin != null) {return true;}\n\t\tif (s._pluginsRegistered) {return false;}\n\t\tif (s.registerPlugins([createjs.WebAudioPlugin, createjs.HTMLAudioPlugin])) {return true;}\n\t\treturn false;\n\t};\n\n\t/**\n\t * Determines if Sound has been initialized, and a plugin has been activated.\n\t *\n\t * Example
\n\t * This example sets up a Flash fallback, but only if there is no plugin specified yet.\n\t *\n\t * \tif (!createjs.Sound.isReady()) {\n\t *\t\tcreatejs.FlashAudioPlugin.swfPath = \"../src/soundjs/flashaudio/\";\n\t * \t\tcreatejs.Sound.registerPlugins([createjs.WebAudioPlugin, createjs.HTMLAudioPlugin, createjs.FlashAudioPlugin]);\n\t *\t}\n\t *\n\t * @method isReady\n\t * @return {Boolean} If Sound has initialized a plugin.\n\t * @static\n\t */\n\ts.isReady = function () {\n\t\treturn (s.activePlugin != null);\n\t};\n\n\t/**\n\t * Deprecated, please use {{#crossLink \"Sound/capabilities:property\"}}{{/crossLink}} instead.\n\t *\n\t * @method getCapabilities\n\t * @return {Object} An object containing the capabilities of the active plugin.\n\t * @static\n\t * @deprecated\n\t */\n\ts.getCapabilities = function () {\n\t\tif (s.activePlugin == null) {return null;}\n\t\treturn s.activePlugin._capabilities;\n\t};\n\n\t/**\n\t * Deprecated, please use {{#crossLink \"Sound/capabilities:property\"}}{{/crossLink}} instead.\n\t *\n\t * @method getCapability\n\t * @param {String} key The capability to retrieve\n\t * @return {Number|Boolean} The value of the capability.\n\t * @static\n\t * @see getCapabilities\n\t * @deprecated\n\t */\n\ts.getCapability = function (key) {\n\t\tif (s.activePlugin == null) {return null;}\n\t\treturn s.activePlugin._capabilities[key];\n\t};\n\n\t/**\n\t * Process manifest items from PreloadJS. This method is intended\n\t * for usage by a plugin, and not for direct interaction.\n\t * @method initLoad\n\t * @param {Object} src The object to load.\n\t * @return {Object|AbstractLoader} An instance of AbstractLoader.\n\t * @protected\n\t * @static\n\t */\n\ts.initLoad = function (loadItem) {\n\t\treturn s._registerSound(loadItem);\n\t};\n\n\t/**\n\t * Internal method for loading sounds. This should not be called directly.\n\t *\n\t * @method _registerSound\n\t * @param {Object} src The object to load, containing src property and optionally containing id and data.\n\t * @return {Object} An object with the modified values that were passed in, which defines the sound.\n\t * Returns false if the source cannot be parsed or no plugins can be initialized.\n\t * Returns true if the source is already loaded.\n\t * @static\n\t * @private\n\t * @since 0.6.0\n\t */\n\n\ts._registerSound = function (loadItem) {\n\t\tif (!s.initializeDefaultPlugins()) {return false;}\n\n\t\tvar details;\n\t\tif (loadItem.src instanceof Object) {\n\t\t\tdetails = s._parseSrc(loadItem.src);\n\t\t\tdetails.src = loadItem.path + details.src;\n\t\t} else {\n\t\t\tdetails = s._parsePath(loadItem.src);\n\t\t}\n\t\tif (details == null) {return false;}\n\t\tloadItem.src = details.src;\n\t\tloadItem.type = \"sound\";\n\n\t\tvar data = loadItem.data;\n\t\tvar numChannels = null;\n\t\tif (data != null) {\n\t\t\tif (!isNaN(data.channels)) {\n\t\t\t\tnumChannels = parseInt(data.channels);\n\t\t\t} else if (!isNaN(data)) {\n\t\t\t\tnumChannels = parseInt(data);\n\t\t\t}\n\n\t\t\tif(data.audioSprite) {\n\t\t\t\tvar sp;\n\t\t\t\tfor(var i = data.audioSprite.length; i--; ) {\n\t\t\t\t\tsp = data.audioSprite[i];\n\t\t\t\t\ts._idHash[sp.id] = {src: loadItem.src, startTime: parseInt(sp.startTime), duration: parseInt(sp.duration)};\n\n\t\t\t\t\tif (sp.defaultPlayProps) {\n\t\t\t\t\t\ts._defaultPlayPropsHash[sp.id] = createjs.PlayPropsConfig.create(sp.defaultPlayProps);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t\tif (loadItem.id != null) {s._idHash[loadItem.id] = {src: loadItem.src}};\n\t\tvar loader = s.activePlugin.register(loadItem);\n\n\t\tSoundChannel.create(loadItem.src, numChannels);\n\n\t\t// return the number of instances to the user. This will also be returned in the load event.\n\t\tif (data == null || !isNaN(data)) {\n\t\t\tloadItem.data = numChannels || SoundChannel.maxPerChannel();\n\t\t} else {\n\t\t\tloadItem.data.channels = numChannels || SoundChannel.maxPerChannel();\n\t\t}\n\n\t\tif (loader.type) {loadItem.type = loader.type;}\n\n\t\tif (loadItem.defaultPlayProps) {\n\t\t\ts._defaultPlayPropsHash[loadItem.src] = createjs.PlayPropsConfig.create(loadItem.defaultPlayProps);\n\t\t}\n\t\treturn loader;\n\t};\n\n\t/**\n\t * Register an audio file for loading and future playback in Sound. This is automatically called when using\n\t * PreloadJS. It is recommended to register all sounds that\n\t * need to be played back in order to properly prepare and preload them. Sound does internal preloading when required.\n\t *\n\t * Example
\n\t *\n\t * createjs.Sound.alternateExtensions = [\"mp3\"];\n\t * createjs.Sound.on(\"fileload\", handleLoad); // add an event listener for when load is completed\n\t * createjs.Sound.registerSound(\"myAudioPath/mySound.ogg\", \"myID\", 3);\n\t * createjs.Sound.registerSound({ogg:\"path1/mySound.ogg\", mp3:\"path2/mySoundNoExtension\"}, \"myID\", 3);\n\t *\n\t *\n\t * @method registerSound\n\t * @param {String | Object} src The source or an Object with a \"src\" property or an Object with multiple extension labeled src properties.\n\t * @param {String} [id] An id specified by the user to play the sound later. Note id is required for when src is multiple extension labeled src properties.\n\t * @param {Number | Object} [data] Data associated with the item. Sound uses the data parameter as the number of\n\t * channels for an audio instance, however a \"channels\" property can be appended to the data object if it is used\n\t * for other information. The audio channels will set a default based on plugin if no value is found.\n\t * Sound also uses the data property to hold an {{#crossLink \"AudioSprite\"}}{{/crossLink}} array of objects in the following format {id, startTime, duration}.
\n\t * id used to play the sound later, in the same manner as a sound src with an id.
\n\t * startTime is the initial offset to start playback and loop from, in milliseconds.
\n\t * duration is the amount of time to play the clip for, in milliseconds.
\n\t * This allows Sound to support audio sprites that are played back by id.\n\t * @param {string} basePath Set a path that will be prepended to src for loading.\n\t * @param {Object | PlayPropsConfig} defaultPlayProps Optional Playback properties that will be set as the defaults on any new AbstractSoundInstance.\n\t * See {{#crossLink \"PlayPropsConfig\"}}{{/crossLink}} for options.\n\t * @return {Object} An object with the modified values that were passed in, which defines the sound.\n\t * Returns false if the source cannot be parsed or no plugins can be initialized.\n\t * Returns true if the source is already loaded.\n\t * @static\n\t * @since 0.4.0\n\t */\n\ts.registerSound = function (src, id, data, basePath, defaultPlayProps) {\n\t\tvar loadItem = {src: src, id: id, data:data, defaultPlayProps:defaultPlayProps};\n\t\tif (src instanceof Object && src.src) {\n\t\t\tbasePath = id;\n\t\t\tloadItem = src;\n\t\t}\n\t\tloadItem = createjs.LoadItem.create(loadItem);\n\t\tloadItem.path = basePath;\n\n\t\tif (basePath != null && !(loadItem.src instanceof Object)) {loadItem.src = basePath + src;}\n\n\t\tvar loader = s._registerSound(loadItem);\n\t\tif(!loader) {return false;}\n\n\t\tif (!s._preloadHash[loadItem.src]) { s._preloadHash[loadItem.src] = [];}\n\t\ts._preloadHash[loadItem.src].push(loadItem);\n\t\tif (s._preloadHash[loadItem.src].length == 1) {\n\t\t\t// OJR note this will disallow reloading a sound if loading fails or the source changes\n\t\t\tloader.on(\"complete\", createjs.proxy(this._handleLoadComplete, this));\n\t\t\tloader.on(\"error\", createjs.proxy(this._handleLoadError, this));\n\t\t\ts.activePlugin.preload(loader);\n\t\t} else {\n\t\t\tif (s._preloadHash[loadItem.src][0] == true) {return true;}\n\t\t}\n\n\t\treturn loadItem;\n\t};\n\n\t/**\n\t * Register an array of audio files for loading and future playback in Sound. It is recommended to register all\n\t * sounds that need to be played back in order to properly prepare and preload them. Sound does internal preloading\n\t * when required.\n\t *\n\t * Example
\n\t *\n\t * \t\tvar assetPath = \"./myAudioPath/\";\n\t * var sounds = [\n\t * {src:\"asset0.ogg\", id:\"example\"},\n\t * {src:\"asset1.ogg\", id:\"1\", data:6},\n\t * {src:\"asset2.mp3\", id:\"works\"}\n\t * {src:{mp3:\"path1/asset3.mp3\", ogg:\"path2/asset3NoExtension}, id:\"better\"}\n\t * ];\n\t * createjs.Sound.alternateExtensions = [\"mp3\"];\t// if the passed extension is not supported, try this extension\n\t * createjs.Sound.on(\"fileload\", handleLoad); // call handleLoad when each sound loads\n\t * createjs.Sound.registerSounds(sounds, assetPath);\n\t *\n\t * @method registerSounds\n\t * @param {Array} sounds An array of objects to load. Objects are expected to be in the format needed for\n\t * {{#crossLink \"Sound/registerSound\"}}{{/crossLink}}: {src:srcURI, id:ID, data:Data}\n\t * with \"id\" and \"data\" being optional.\n\t * You can also pass an object with path and manifest properties, where path is a basePath and manifest is an array of objects to load.\n\t * Note id is required if src is an object with extension labeled src properties.\n\t * @param {string} basePath Set a path that will be prepended to each src when loading. When creating, playing, or removing\n\t * audio that was loaded with a basePath by src, the basePath must be included.\n\t * @return {Object} An array of objects with the modified values that were passed in, which defines each sound.\n\t * Like registerSound, it will return false for any values when the source cannot be parsed or if no plugins can be initialized.\n\t * Also, it will return true for any values when the source is already loaded.\n\t * @static\n\t * @since 0.6.0\n\t */\n\ts.registerSounds = function (sounds, basePath) {\n\t\tvar returnValues = [];\n\t\tif (sounds.path) {\n\t\t\tif (!basePath) {\n\t\t\t\tbasePath = sounds.path;\n\t\t\t} else {\n\t\t\t\tbasePath = basePath + sounds.path;\n\t\t\t}\n\t\t\tsounds = sounds.manifest;\n\t\t\t// TODO document this feature\n\t\t}\n\t\tfor (var i = 0, l = sounds.length; i < l; i++) {\n\t\t\treturnValues[i] = createjs.Sound.registerSound(sounds[i].src, sounds[i].id, sounds[i].data, basePath, sounds[i].defaultPlayProps);\n\t\t}\n\t\treturn returnValues;\n\t};\n\n\t/**\n\t * Remove a sound that has been registered with {{#crossLink \"Sound/registerSound\"}}{{/crossLink}} or\n\t * {{#crossLink \"Sound/registerSounds\"}}{{/crossLink}}.\n\t *
Note this will stop playback on active instances playing this sound before deleting them.\n\t *
Note if you passed in a basePath, you need to pass it or prepend it to the src here.\n\t *\n\t * Example
\n\t *\n\t * createjs.Sound.removeSound(\"myID\");\n\t * createjs.Sound.removeSound(\"myAudioBasePath/mySound.ogg\");\n\t * createjs.Sound.removeSound(\"myPath/myOtherSound.mp3\", \"myBasePath/\");\n\t * createjs.Sound.removeSound({mp3:\"musicNoExtension\", ogg:\"music.ogg\"}, \"myBasePath/\");\n\t *\n\t * @method removeSound\n\t * @param {String | Object} src The src or ID of the audio, or an Object with a \"src\" property, or an Object with multiple extension labeled src properties.\n\t * @param {string} basePath Set a path that will be prepended to each src when removing.\n\t * @return {Boolean} True if sound is successfully removed.\n\t * @static\n\t * @since 0.4.1\n\t */\n\ts.removeSound = function(src, basePath) {\n\t\tif (s.activePlugin == null) {return false;}\n\n\t\tif (src instanceof Object && src.src) {src = src.src;}\n\n\t\tvar details;\n\t\tif (src instanceof Object) {\n\t\t\tdetails = s._parseSrc(src);\n\t\t} else {\n\t\t\tsrc = s._getSrcById(src).src;\n\t\t\tdetails = s._parsePath(src);\n\t\t}\n\t\tif (details == null) {return false;}\n\t\tsrc = details.src;\n\t\tif (basePath != null) {src = basePath + src;}\n\n\t\tfor(var prop in s._idHash){\n\t\t\tif(s._idHash[prop].src == src) {\n\t\t\t\tdelete(s._idHash[prop]);\n\t\t\t}\n\t\t}\n\n\t\t// clear from SoundChannel, which also stops and deletes all instances\n\t\tSoundChannel.removeSrc(src);\n\n\t\tdelete(s._preloadHash[src]);\n\n\t\ts.activePlugin.removeSound(src);\n\n\t\treturn true;\n\t};\n\n\t/**\n\t * Remove an array of audio files that have been registered with {{#crossLink \"Sound/registerSound\"}}{{/crossLink}} or\n\t * {{#crossLink \"Sound/registerSounds\"}}{{/crossLink}}.\n\t *
Note this will stop playback on active instances playing this audio before deleting them.\n\t *
Note if you passed in a basePath, you need to pass it or prepend it to the src here.\n\t *\n\t * Example
\n\t *\n\t * \t\tassetPath = \"./myPath/\";\n\t * var sounds = [\n\t * {src:\"asset0.ogg\", id:\"example\"},\n\t * {src:\"asset1.ogg\", id:\"1\", data:6},\n\t * {src:\"asset2.mp3\", id:\"works\"}\n\t * ];\n\t * createjs.Sound.removeSounds(sounds, assetPath);\n\t *\n\t * @method removeSounds\n\t * @param {Array} sounds An array of objects to remove. Objects are expected to be in the format needed for\n\t * {{#crossLink \"Sound/removeSound\"}}{{/crossLink}}: {srcOrID:srcURIorID}.\n\t * You can also pass an object with path and manifest properties, where path is a basePath and manifest is an array of objects to remove.\n\t * @param {string} basePath Set a path that will be prepended to each src when removing.\n\t * @return {Object} An array of Boolean values representing if the sounds with the same array index were\n\t * successfully removed.\n\t * @static\n\t * @since 0.4.1\n\t */\n\ts.removeSounds = function (sounds, basePath) {\n\t\tvar returnValues = [];\n\t\tif (sounds.path) {\n\t\t\tif (!basePath) {\n\t\t\t\tbasePath = sounds.path;\n\t\t\t} else {\n\t\t\t\tbasePath = basePath + sounds.path;\n\t\t\t}\n\t\t\tsounds = sounds.manifest;\n\t\t}\n\t\tfor (var i = 0, l = sounds.length; i < l; i++) {\n\t\t\treturnValues[i] = createjs.Sound.removeSound(sounds[i].src, basePath);\n\t\t}\n\t\treturn returnValues;\n\t};\n\n\t/**\n\t * Remove all sounds that have been registered with {{#crossLink \"Sound/registerSound\"}}{{/crossLink}} or\n\t * {{#crossLink \"Sound/registerSounds\"}}{{/crossLink}}.\n\t *
Note this will stop playback on all active sound instances before deleting them.\n\t *\n\t * Example
\n\t *\n\t * createjs.Sound.removeAllSounds();\n\t *\n\t * @method removeAllSounds\n\t * @static\n\t * @since 0.4.1\n\t */\n\ts.removeAllSounds = function() {\n\t\ts._idHash = {};\n\t\ts._preloadHash = {};\n\t\tSoundChannel.removeAll();\n\t\tif (s.activePlugin) {s.activePlugin.removeAllSounds();}\n\t};\n\n\t/**\n\t * Check if a source has been loaded by internal preloaders. This is necessary to ensure that sounds that are\n\t * not completed preloading will not kick off a new internal preload if they are played.\n\t *\n\t * Example
\n\t *\n\t * var mySound = \"assetPath/asset0.ogg\";\n\t * if(createjs.Sound.loadComplete(mySound) {\n\t * createjs.Sound.play(mySound);\n\t * }\n\t *\n\t * @method loadComplete\n\t * @param {String} src The src or id that is being loaded.\n\t * @return {Boolean} If the src is already loaded.\n\t * @since 0.4.0\n\t * @static\n\t */\n\ts.loadComplete = function (src) {\n\t\tif (!s.isReady()) { return false; }\n\t\tvar details = s._parsePath(src);\n\t\tif (details) {\n\t\t\tsrc = s._getSrcById(details.src).src;\n\t\t} else {\n\t\t\tsrc = s._getSrcById(src).src;\n\t\t}\n\t\tif(s._preloadHash[src] == undefined) {return false;}\n\t\treturn (s._preloadHash[src][0] == true); // src only loads once, so if it's true for the first it's true for all\n\t};\n\n\t/**\n\t * Parse the path of a sound. Alternate extensions will be attempted in order if the\n\t * current extension is not supported\n\t * @method _parsePath\n\t * @param {String} value The path to an audio source.\n\t * @return {Object} A formatted object that can be registered with the {{#crossLink \"Sound/activePlugin:property\"}}{{/crossLink}}\n\t * and returned to a preloader like PreloadJS.\n\t * @protected\n\t * @static\n\t */\n\ts._parsePath = function (value) {\n\t\tif (typeof(value) != \"string\") {value = value.toString();}\n\n\t\tvar match = value.match(s.FILE_PATTERN);\n\t\tif (match == null) {return false;}\n\n\t\tvar name = match[4];\n\t\tvar ext = match[5];\n\t\tvar c = s.capabilities;\n\t\tvar i = 0;\n\t\twhile (!c[ext]) {\n\t\t\text = s.alternateExtensions[i++];\n\t\t\tif (i > s.alternateExtensions.length) { return null;}\t// no extensions are supported\n\t\t}\n\t\tvalue = value.replace(\".\"+match[5], \".\"+ext);\n\n\t\tvar ret = {name:name, src:value, extension:ext};\n\t\treturn ret;\n\t};\n\n\t/**\n\t * Parse the path of a sound based on properties of src matching with supported extensions.\n\t * Returns false if none of the properties are supported\n\t * @method _parseSrc\n\t * @param {Object} value The paths to an audio source, indexed by extension type.\n\t * @return {Object} A formatted object that can be registered with the {{#crossLink \"Sound/activePlugin:property\"}}{{/crossLink}}\n\t * and returned to a preloader like PreloadJS.\n\t * @protected\n\t * @static\n\t */\n\ts._parseSrc = function (value) {\n\t\tvar ret = {name:undefined, src:undefined, extension:undefined};\n\t\tvar c = s.capabilities;\n\n\t\tfor (var prop in value) {\n\t\t if(value.hasOwnProperty(prop) && c[prop]) {\n\t\t\t\tret.src = value[prop];\n\t\t\t\tret.extension = prop;\n\t\t\t\tbreak;\n\t\t }\n\t\t}\n\t\tif (!ret.src) {return false;}\t// no matches\n\n\t\tvar i = ret.src.lastIndexOf(\"/\");\n\t\tif (i != -1) {\n\t\t\tret.name = ret.src.slice(i+1);\n\t\t} else {\n\t\t\tret.name = ret.src;\n\t\t}\n\n\t\treturn ret;\n\t};\n\n\t/* ---------------\n\t Static API.\n\t --------------- */\n\t/**\n\t * Play a sound and get a {{#crossLink \"AbstractSoundInstance\"}}{{/crossLink}} to control. If the sound fails to play, a\n\t * AbstractSoundInstance will still be returned, and have a playState of {{#crossLink \"Sound/PLAY_FAILED:property\"}}{{/crossLink}}.\n\t * Note that even on sounds with failed playback, you may still be able to call AbstractSoundInstance {{#crossLink \"AbstractSoundInstance/play\"}}{{/crossLink}},\n\t * since the failure could be due to lack of available channels. If the src does not have a supported extension or\n\t * if there is no available plugin, a default AbstractSoundInstance will be returned which will not play any audio, but will not generate errors.\n\t *\n\t * Example
\n\t *\n\t * createjs.Sound.on(\"fileload\", handleLoad);\n\t * createjs.Sound.registerSound(\"myAudioPath/mySound.mp3\", \"myID\", 3);\n\t * function handleLoad(event) {\n\t * \tcreatejs.Sound.play(\"myID\");\n\t * \t// store off AbstractSoundInstance for controlling\n\t * \tvar myInstance = createjs.Sound.play(\"myID\", {interrupt: createjs.Sound.INTERRUPT_ANY, loop:-1});\n\t * }\n\t *\n\t * NOTE to create an audio sprite that has not already been registered, both startTime and duration need to be set.\n\t * This is only when creating a new audio sprite, not when playing using the id of an already registered audio sprite.\n\t *\n\t * Parameters Deprecated
\n\t * The parameters for this method are deprecated in favor of a single parameter that is an Object or {{#crossLink \"PlayPropsConfig\"}}{{/crossLink}}.\n\t *\n\t * @method play\n\t * @param {String} src The src or ID of the audio.\n\t * @param {String | Object} [interrupt=\"none\"|options] This parameter will be renamed playProps in the next release.
\n\t * This parameter can be an instance of {{#crossLink \"PlayPropsConfig\"}}{{/crossLink}} or an Object that contains any or all optional properties by name,\n\t * including: interrupt, delay, offset, loop, volume, pan, startTime, and duration (see the above code sample).\n\t *
OR
\n\t * Deprecated How to interrupt any currently playing instances of audio with the same source,\n\t * if the maximum number of instances of the sound are already playing. Values are defined as INTERRUPT_TYPE\n\t * constants on the Sound class, with the default defined by {{#crossLink \"Sound/defaultInterruptBehavior:property\"}}{{/crossLink}}.\n\t * @param {Number} [delay=0] Deprecated The amount of time to delay the start of audio playback, in milliseconds.\n\t * @param {Number} [offset=0] Deprecated The offset from the start of the audio to begin playback, in milliseconds.\n\t * @param {Number} [loop=0] Deprecated How many times the audio loops when it reaches the end of playback. The default is 0 (no\n\t * loops), and -1 can be used for infinite playback.\n\t * @param {Number} [volume=1] Deprecated The volume of the sound, between 0 and 1. Note that the master volume is applied\n\t * against the individual volume.\n\t * @param {Number} [pan=0] Deprecated The left-right pan of the sound (if supported), between -1 (left) and 1 (right).\n\t * @param {Number} [startTime=null] Deprecated To create an audio sprite (with duration), the initial offset to start playback and loop from, in milliseconds.\n\t * @param {Number} [duration=null] Deprecated To create an audio sprite (with startTime), the amount of time to play the clip for, in milliseconds.\n\t * @return {AbstractSoundInstance} A {{#crossLink \"AbstractSoundInstance\"}}{{/crossLink}} that can be controlled after it is created.\n\t * @static\n\t */\n\ts.play = function (src, interrupt, delay, offset, loop, volume, pan, startTime, duration) {\n\t\tvar playProps;\n\t\tif (interrupt instanceof Object || interrupt instanceof createjs.PlayPropsConfig) {\n\t\t\tplayProps = createjs.PlayPropsConfig.create(interrupt);\n\t\t} else {\n\t\t\tplayProps = createjs.PlayPropsConfig.create({interrupt:interrupt, delay:delay, offset:offset, loop:loop, volume:volume, pan:pan, startTime:startTime, duration:duration});\n\t\t}\n\t\tvar instance = s.createInstance(src, playProps.startTime, playProps.duration);\n\t\tvar ok = s._playInstance(instance, playProps);\n\t\tif (!ok) {instance._playFailed();}\n\t\treturn instance;\n\t};\n\n\t/**\n\t * Creates a {{#crossLink \"AbstractSoundInstance\"}}{{/crossLink}} using the passed in src. If the src does not have a\n\t * supported extension or if there is no available plugin, a default AbstractSoundInstance will be returned that can be\n\t * called safely but does nothing.\n\t *\n\t * Example
\n\t *\n\t * var myInstance = null;\n\t * createjs.Sound.on(\"fileload\", handleLoad);\n\t * createjs.Sound.registerSound(\"myAudioPath/mySound.mp3\", \"myID\", 3);\n\t * function handleLoad(event) {\n\t * \tmyInstance = createjs.Sound.createInstance(\"myID\");\n\t * \t// alternately we could call the following\n\t * \tmyInstance = createjs.Sound.createInstance(\"myAudioPath/mySound.mp3\");\n\t * }\n\t *\n\t * NOTE to create an audio sprite that has not already been registered, both startTime and duration need to be set.\n\t * This is only when creating a new audio sprite, not when playing using the id of an already registered audio sprite.\n\t *\n\t * @method createInstance\n\t * @param {String} src The src or ID of the audio.\n\t * @param {Number} [startTime=null] To create an audio sprite (with duration), the initial offset to start playback and loop from, in milliseconds.\n\t * @param {Number} [duration=null] To create an audio sprite (with startTime), the amount of time to play the clip for, in milliseconds.\n\t * @return {AbstractSoundInstance} A {{#crossLink \"AbstractSoundInstance\"}}{{/crossLink}} that can be controlled after it is created.\n\t * Unsupported extensions will return the default AbstractSoundInstance.\n\t * @since 0.4.0\n\t * @static\n\t */\n\ts.createInstance = function (src, startTime, duration) {\n\t\tif (!s.initializeDefaultPlugins()) {return new createjs.DefaultSoundInstance(src, startTime, duration);}\n\n\t\tvar defaultPlayProps = s._defaultPlayPropsHash[src];\t// for audio sprites, which create and store defaults by id\n\t\tsrc = s._getSrcById(src);\n\n\t\tvar details = s._parsePath(src.src);\n\n\t\tvar instance = null;\n\t\tif (details != null && details.src != null) {\n\t\t\tSoundChannel.create(details.src);\n\t\t\tif (startTime == null) {startTime = src.startTime;}\n\t\t\tinstance = s.activePlugin.create(details.src, startTime, duration || src.duration);\n\n\t\t\tdefaultPlayProps = defaultPlayProps || s._defaultPlayPropsHash[details.src];\n\t\t\tif(defaultPlayProps) {\n\t\t\t\tinstance.applyPlayProps(defaultPlayProps);\n\t\t\t}\n\t\t} else {\n\t\t\tinstance = new createjs.DefaultSoundInstance(src, startTime, duration);\n\t\t}\n\n\t\tinstance.uniqueId = s._lastID++;\n\n\t\treturn instance;\n\t};\n\n\t/**\n\t * Stop all audio (global stop). Stopped audio is reset, and not paused. To play audio that has been stopped,\n\t * call AbstractSoundInstance {{#crossLink \"AbstractSoundInstance/play\"}}{{/crossLink}}.\n\t *\n\t * Example
\n\t *\n\t * createjs.Sound.stop();\n\t *\n\t * @method stop\n\t * @static\n\t */\n\ts.stop = function () {\n\t\tvar instances = this._instances;\n\t\tfor (var i = instances.length; i--; ) {\n\t\t\tinstances[i].stop(); // NOTE stop removes instance from this._instances\n\t\t}\n\t};\n\n\t/**\n\t * Deprecated, please use {{#crossLink \"Sound/volume:property\"}}{{/crossLink}} instead.\n\t *\n\t * @method setVolume\n\t * @param {Number} value The master volume value. The acceptable range is 0-1.\n\t * @static\n\t * @deprecated\n\t */\n\ts.setVolume = function (value) {\n\t\tif (Number(value) == null) {return false;}\n\t\tvalue = Math.max(0, Math.min(1, value));\n\t\ts._masterVolume = value;\n\t\tif (!this.activePlugin || !this.activePlugin.setVolume || !this.activePlugin.setVolume(value)) {\n\t\t\tvar instances = this._instances;\n\t\t\tfor (var i = 0, l = instances.length; i < l; i++) {\n\t\t\t\tinstances[i].setMasterVolume(value);\n\t\t\t}\n\t\t}\n\t};\n\n\t/**\n\t * Deprecated, please use {{#crossLink \"Sound/volume:property\"}}{{/crossLink}} instead.\n\t *\n\t * @method getVolume\n\t * @return {Number} The master volume, in a range of 0-1.\n\t * @static\n\t * @deprecated\n\t */\n\ts.getVolume = function () {\n\t\treturn this._masterVolume;\n\t};\n\n\t/**\n\t * Deprecated, please use {{#crossLink \"Sound/muted:property\"}}{{/crossLink}} instead.\n\t *\n\t * @method setMute\n\t * @param {Boolean} value Whether the audio should be muted or not.\n\t * @return {Boolean} If the mute was set.\n\t * @static\n\t * @since 0.4.0\n\t * @deprecated\n\t */\n\ts.setMute = function (value) {\n\t\tif (value == null) {return false;}\n\n\t\tthis._masterMute = value;\n\t\tif (!this.activePlugin || !this.activePlugin.setMute || !this.activePlugin.setMute(value)) {\n\t\t\tvar instances = this._instances;\n\t\t\tfor (var i = 0, l = instances.length; i < l; i++) {\n\t\t\t\tinstances[i].setMasterMute(value);\n\t\t\t}\n\t\t}\n\t\treturn true;\n\t};\n\n\t/**\n\t * Deprecated, please use {{#crossLink \"Sound/muted:property\"}}{{/crossLink}} instead.\n\t *\n\t * @method getMute\n\t * @return {Boolean} The mute value of Sound.\n\t * @static\n\t * @since 0.4.0\n\t * @deprecated\n\t */\n\ts.getMute = function () {\n\t\treturn this._masterMute;\n\t};\n\n\t/**\n\t * Set the default playback properties for all new SoundInstances of the passed in src or ID.\n\t * See {{#crossLink \"PlayPropsConfig\"}}{{/crossLink}} for available properties.\n\t *\n\t * @method setDefaultPlayProps\n\t * @param {String} src The src or ID used to register the audio.\n\t * @param {Object | PlayPropsConfig} playProps The playback properties you would like to set.\n\t * @since 0.6.1\n\t */\n\ts.setDefaultPlayProps = function(src, playProps) {\n\t\tsrc = s._getSrcById(src);\n\t\ts._defaultPlayPropsHash[s._parsePath(src.src).src] = createjs.PlayPropsConfig.create(playProps);\n\t};\n\n\t/**\n\t * Get the default playback properties for the passed in src or ID. These properties are applied to all\n\t * new SoundInstances. Returns null if default does not exist.\n\t *\n\t * @method getDefaultPlayProps\n\t * @param {String} src The src or ID used to register the audio.\n\t * @returns {PlayPropsConfig} returns an existing PlayPropsConfig or null if one does not exist\n\t * @since 0.6.1\n\t */\n\ts.getDefaultPlayProps = function(src) {\n\t\tsrc = s._getSrcById(src);\n\t\treturn s._defaultPlayPropsHash[s._parsePath(src.src).src];\n\t};\n\n\n\t/* ---------------\n\t Internal methods\n\t --------------- */\n\t/**\n\t * Play an instance. This is called by the static API, as well as from plugins. This allows the core class to\n\t * control delays.\n\t * @method _playInstance\n\t * @param {AbstractSoundInstance} instance The {{#crossLink \"AbstractSoundInstance\"}}{{/crossLink}} to start playing.\n\t * @param {PlayPropsConfig} playProps A PlayPropsConfig object.\n\t * @return {Boolean} If the sound can start playing. Sounds that fail immediately will return false. Sounds that\n\t * have a delay will return true, but may still fail to play.\n\t * @protected\n\t * @static\n\t */\n\ts._playInstance = function (instance, playProps) {\n\t\tvar defaultPlayProps = s._defaultPlayPropsHash[instance.src] || {};\n\t\tif (playProps.interrupt == null) {playProps.interrupt = defaultPlayProps.interrupt || s.defaultInterruptBehavior};\n\t\tif (playProps.delay == null) {playProps.delay = defaultPlayProps.delay || 0;}\n\t\tif (playProps.offset == null) {playProps.offset = instance.getPosition();}\n\t\tif (playProps.loop == null) {playProps.loop = instance.loop;}\n\t\tif (playProps.volume == null) {playProps.volume = instance.volume;}\n\t\tif (playProps.pan == null) {playProps.pan = instance.pan;}\n\n\t\tif (playProps.delay == 0) {\n\t\t\tvar ok = s._beginPlaying(instance, playProps);\n\t\t\tif (!ok) {return false;}\n\t\t} else {\n\t\t\t//Note that we can't pass arguments to proxy OR setTimeout (IE only), so just wrap the function call.\n\t\t\t// OJR WebAudio may want to handle this differently, so it might make sense to move this functionality into the plugins in the future\n\t\t\tvar delayTimeoutId = setTimeout(function () {\n\t\t\t\ts._beginPlaying(instance, playProps);\n\t\t\t}, playProps.delay);\n\t\t\tinstance.delayTimeoutId = delayTimeoutId;\n\t\t}\n\n\t\tthis._instances.push(instance);\n\n\t\treturn true;\n\t};\n\n\t/**\n\t * Begin playback. This is called immediately or after delay by {{#crossLink \"Sound/playInstance\"}}{{/crossLink}}.\n\t * @method _beginPlaying\n\t * @param {AbstractSoundInstance} instance A {{#crossLink \"AbstractSoundInstance\"}}{{/crossLink}} to begin playback.\n\t * @param {PlayPropsConfig} playProps A PlayPropsConfig object.\n\t * @return {Boolean} If the sound can start playing. If there are no available channels, or the instance fails to\n\t * start, this will return false.\n\t * @protected\n\t * @static\n\t */\n\ts._beginPlaying = function (instance, playProps) {\n\t\tif (!SoundChannel.add(instance, playProps.interrupt)) {\n\t\t\treturn false;\n\t\t}\n\t\tvar result = instance._beginPlaying(playProps);\n\t\tif (!result) {\n\t\t\tvar index = createjs.indexOf(this._instances, instance);\n\t\t\tif (index > -1) {this._instances.splice(index, 1);}\n\t\t\treturn false;\n\t\t}\n\t\treturn true;\n\t};\n\n\t/**\n\t * Get the source of a sound via the ID passed in with a register call. If no ID is found the value is returned\n\t * instead.\n\t * @method _getSrcById\n\t * @param {String} value The ID the sound was registered with.\n\t * @return {String} The source of the sound if it has been registered with this ID or the value that was passed in.\n\t * @protected\n\t * @static\n\t */\n\ts._getSrcById = function (value) {\n\t\treturn s._idHash[value] || {src: value};\n\t};\n\n\t/**\n\t * A sound has completed playback, been interrupted, failed, or been stopped. This method removes the instance from\n\t * Sound management. It will be added again, if the sound re-plays. Note that this method is called from the\n\t * instances themselves.\n\t * @method _playFinished\n\t * @param {AbstractSoundInstance} instance The instance that finished playback.\n\t * @protected\n\t * @static\n\t */\n\ts._playFinished = function (instance) {\n\t\tSoundChannel.remove(instance);\n\t\tvar index = createjs.indexOf(this._instances, instance);\n\t\tif (index > -1) {this._instances.splice(index, 1);}\t// OJR this will always be > -1, there is no way for an instance to exist without being added to this._instances\n\t};\n\n\tcreatejs.Sound = Sound;\n\n\t/**\n\t * An internal class that manages the number of active {{#crossLink \"AbstractSoundInstance\"}}{{/crossLink}} instances for\n\t * each sound type. This method is only used internally by the {{#crossLink \"Sound\"}}{{/crossLink}} class.\n\t *\n\t * The number of sounds is artificially limited by Sound in order to prevent over-saturation of a\n\t * single sound, as well as to stay within hardware limitations, although the latter may disappear with better\n\t * browser support.\n\t *\n\t * When a sound is played, this class ensures that there is an available instance, or interrupts an appropriate\n\t * sound that is already playing.\n\t * #class SoundChannel\n\t * @param {String} src The source of the instances\n\t * @param {Number} [max=1] The number of instances allowed\n\t * @constructor\n\t * @protected\n\t */\n\tfunction SoundChannel(src, max) {\n\t\tthis.init(src, max);\n\t}\n\n\t/* ------------\n\t Static API\n\t ------------ */\n\t/**\n\t * A hash of channel instances indexed by source.\n\t * #property channels\n\t * @type {Object}\n\t * @static\n\t */\n\tSoundChannel.channels = {};\n\n\t/**\n\t * Create a sound channel. Note that if the sound channel already exists, this will fail.\n\t * #method create\n\t * @param {String} src The source for the channel\n\t * @param {Number} max The maximum amount this channel holds. The default is {{#crossLink \"SoundChannel.maxDefault\"}}{{/crossLink}}.\n\t * @return {Boolean} If the channels were created.\n\t * @static\n\t */\n\tSoundChannel.create = function (src, max) {\n\t\tvar channel = SoundChannel.get(src);\n\t\tif (channel == null) {\n\t\t\tSoundChannel.channels[src] = new SoundChannel(src, max);\n\t\t\treturn true;\n\t\t}\n\t\treturn false;\n\t};\n\t/**\n\t * Delete a sound channel, stop and delete all related instances. Note that if the sound channel does not exist, this will fail.\n\t * #method remove\n\t * @param {String} src The source for the channel\n\t * @return {Boolean} If the channels were deleted.\n\t * @static\n\t */\n\tSoundChannel.removeSrc = function (src) {\n\t\tvar channel = SoundChannel.get(src);\n\t\tif (channel == null) {return false;}\n\t\tchannel._removeAll();\t// this stops and removes all active instances\n\t\tdelete(SoundChannel.channels[src]);\n\t\treturn true;\n\t};\n\t/**\n\t * Delete all sound channels, stop and delete all related instances.\n\t * #method removeAll\n\t * @static\n\t */\n\tSoundChannel.removeAll = function () {\n\t\tfor(var channel in SoundChannel.channels) {\n\t\t\tSoundChannel.channels[channel]._removeAll();\t// this stops and removes all active instances\n\t\t}\n\t\tSoundChannel.channels = {};\n\t};\n\t/**\n\t * Add an instance to a sound channel.\n\t * #method add\n\t * @param {AbstractSoundInstance} instance The instance to add to the channel\n\t * @param {String} interrupt The interrupt value to use. Please see the {{#crossLink \"Sound/play\"}}{{/crossLink}}\n\t * for details on interrupt modes.\n\t * @return {Boolean} The success of the method call. If the channel is full, it will return false.\n\t * @static\n\t */\n\tSoundChannel.add = function (instance, interrupt) {\n\t\tvar channel = SoundChannel.get(instance.src);\n\t\tif (channel == null) {return false;}\n\t\treturn channel._add(instance, interrupt);\n\t};\n\t/**\n\t * Remove an instance from the channel.\n\t * #method remove\n\t * @param {AbstractSoundInstance} instance The instance to remove from the channel\n\t * @return The success of the method call. If there is no channel, it will return false.\n\t * @static\n\t */\n\tSoundChannel.remove = function (instance) {\n\t\tvar channel = SoundChannel.get(instance.src);\n\t\tif (channel == null) {return false;}\n\t\tchannel._remove(instance);\n\t\treturn true;\n\t};\n\t/**\n\t * Get the maximum number of sounds you can have in a channel.\n\t * #method maxPerChannel\n\t * @return {Number} The maximum number of sounds you can have in a channel.\n\t */\n\tSoundChannel.maxPerChannel = function () {\n\t\treturn p.maxDefault;\n\t};\n\t/**\n\t * Get a channel instance by its src.\n\t * #method get\n\t * @param {String} src The src to use to look up the channel\n\t * @static\n\t */\n\tSoundChannel.get = function (src) {\n\t\treturn SoundChannel.channels[src];\n\t};\n\n\tvar p = SoundChannel.prototype;\n\tp.constructor = SoundChannel;\n\n\t/**\n\t * REMOVED. Removed in favor of using `MySuperClass_constructor`.\n\t * See {{#crossLink \"Utility Methods/extend\"}}{{/crossLink}} and {{#crossLink \"Utility Methods/promote\"}}{{/crossLink}}\n\t * for details.\n\t *\n\t * There is an inheritance tutorial distributed with EaselJS in /tutorials/Inheritance.\n\t *\n\t * @method initialize\n\t * @protected\n\t * @deprecated\n\t */\n\t// p.initialize = function() {}; // searchable for devs wondering where it is.\n\n\n\t/**\n\t * The source of the channel.\n\t * #property src\n\t * @type {String}\n\t */\n\tp.src = null;\n\n\t/**\n\t * The maximum number of instances in this channel. -1 indicates no limit\n\t * #property max\n\t * @type {Number}\n\t */\n\tp.max = null;\n\n\t/**\n\t * The default value to set for max, if it isn't passed in. Also used if -1 is passed.\n\t * #property maxDefault\n\t * @type {Number}\n\t * @default 100\n\t * @since 0.4.0\n\t */\n\tp.maxDefault = 100;\n\n\t/**\n\t * The current number of active instances.\n\t * #property length\n\t * @type {Number}\n\t */\n\tp.length = 0;\n\n\t/**\n\t * Initialize the channel.\n\t * #method init\n\t * @param {String} src The source of the channel\n\t * @param {Number} max The maximum number of instances in the channel\n\t * @protected\n\t */\n\tp.init = function (src, max) {\n\t\tthis.src = src;\n\t\tthis.max = max || this.maxDefault;\n\t\tif (this.max == -1) {this.max = this.maxDefault;}\n\t\tthis._instances = [];\n\t};\n\n\t/**\n\t * Get an instance by index.\n\t * #method get\n\t * @param {Number} index The index to return.\n\t * @return {AbstractSoundInstance} The AbstractSoundInstance at a specific instance.\n\t */\n\tp._get = function (index) {\n\t\treturn this._instances[index];\n\t};\n\n\t/**\n\t * Add a new instance to the channel.\n\t * #method add\n\t * @param {AbstractSoundInstance} instance The instance to add.\n\t * @return {Boolean} The success of the method call. If the channel is full, it will return false.\n\t */\n\tp._add = function (instance, interrupt) {\n\t\tif (!this._getSlot(interrupt, instance)) {return false;}\n\t\tthis._instances.push(instance);\n\t\tthis.length++;\n\t\treturn true;\n\t};\n\n\t/**\n\t * Remove an instance from the channel, either when it has finished playing, or it has been interrupted.\n\t * #method remove\n\t * @param {AbstractSoundInstance} instance The instance to remove\n\t * @return {Boolean} The success of the remove call. If the instance is not found in this channel, it will\n\t * return false.\n\t */\n\tp._remove = function (instance) {\n\t\tvar index = createjs.indexOf(this._instances, instance);\n\t\tif (index == -1) {return false;}\n\t\tthis._instances.splice(index, 1);\n\t\tthis.length--;\n\t\treturn true;\n\t};\n\n\t/**\n\t * Stop playback and remove all instances from the channel. Usually in response to a delete call.\n\t * #method removeAll\n\t */\n\tp._removeAll = function () {\n\t\t// Note that stop() removes the item from the list\n\t\tfor (var i=this.length-1; i>=0; i--) {\n\t\t\tthis._instances[i].stop();\n\t\t}\n\t};\n\n\t/**\n\t * Get an available slot depending on interrupt value and if slots are available.\n\t * #method getSlot\n\t * @param {String} interrupt The interrupt value to use.\n\t * @param {AbstractSoundInstance} instance The sound instance that will go in the channel if successful.\n\t * @return {Boolean} Determines if there is an available slot. Depending on the interrupt mode, if there are no slots,\n\t * an existing AbstractSoundInstance may be interrupted. If there are no slots, this method returns false.\n\t */\n\tp._getSlot = function (interrupt, instance) {\n\t\tvar target, replacement;\n\n\t\tif (interrupt != Sound.INTERRUPT_NONE) {\n\t\t\t// First replacement candidate\n\t\t\treplacement = this._get(0);\n\t\t\tif (replacement == null) {\n\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\n\t\tfor (var i = 0, l = this.max; i < l; i++) {\n\t\t\ttarget = this._get(i);\n\n\t\t\t// Available Space\n\t\t\tif (target == null) {\n\t\t\t\treturn true;\n\t\t\t}\n\n\t\t\t// Audio is complete or not playing\n\t\t\tif (target.playState == Sound.PLAY_FINISHED ||\n\t\t\t\ttarget.playState == Sound.PLAY_INTERRUPTED ||\n\t\t\t\ttarget.playState == Sound.PLAY_FAILED) {\n\t\t\t\treplacement = target;\n\t\t\t\tbreak;\n\t\t\t}\n\n\t\t\tif (interrupt == Sound.INTERRUPT_NONE) {\n\t\t\t\tcontinue;\n\t\t\t}\n\n\t\t\t// Audio is a better candidate than the current target, according to playhead\n\t\t\tif ((interrupt == Sound.INTERRUPT_EARLY && target.getPosition() < replacement.getPosition()) ||\n\t\t\t\t(interrupt == Sound.INTERRUPT_LATE && target.getPosition() > replacement.getPosition())) {\n\t\t\t\t\treplacement = target;\n\t\t\t}\n\t\t}\n\n\t\tif (replacement != null) {\n\t\t\treplacement._interrupt();\n\t\t\tthis._remove(replacement);\n\t\t\treturn true;\n\t\t}\n\t\treturn false;\n\t};\n\n\tp.toString = function () {\n\t\treturn \"[Sound SoundChannel]\";\n\t};\n\t// do not add SoundChannel to namespace\n\n}());\n\n//##############################################################################\n// AbstractSoundInstance.js\n//##############################################################################\n\n/**\n * A AbstractSoundInstance is created when any calls to the Sound API method {{#crossLink \"Sound/play\"}}{{/crossLink}} or\n * {{#crossLink \"Sound/createInstance\"}}{{/crossLink}} are made. The AbstractSoundInstance is returned by the active plugin\n * for control by the user.\n *\n * Example
\n *\n * var myInstance = createjs.Sound.play(\"myAssetPath/mySrcFile.mp3\");\n *\n * A number of additional parameters provide a quick way to determine how a sound is played. Please see the Sound\n * API method {{#crossLink \"Sound/play\"}}{{/crossLink}} for a list of arguments.\n *\n * Once a AbstractSoundInstance is created, a reference can be stored that can be used to control the audio directly through\n * the AbstractSoundInstance. If the reference is not stored, the AbstractSoundInstance will play out its audio (and any loops), and\n * is then de-referenced from the {{#crossLink \"Sound\"}}{{/crossLink}} class so that it can be cleaned up. If audio\n * playback has completed, a simple call to the {{#crossLink \"AbstractSoundInstance/play\"}}{{/crossLink}} instance method\n * will rebuild the references the Sound class need to control it.\n *\n * var myInstance = createjs.Sound.play(\"myAssetPath/mySrcFile.mp3\", {loop:2});\n * myInstance.on(\"loop\", handleLoop);\n * function handleLoop(event) {\n * myInstance.volume = myInstance.volume * 0.5;\n * }\n *\n * Events are dispatched from the instance to notify when the sound has completed, looped, or when playback fails\n *\n * var myInstance = createjs.Sound.play(\"myAssetPath/mySrcFile.mp3\");\n * myInstance.on(\"complete\", handleComplete);\n * myInstance.on(\"loop\", handleLoop);\n * myInstance.on(\"failed\", handleFailed);\n *\n *\n * @class AbstractSoundInstance\n * @param {String} src The path to and file name of the sound.\n * @param {Number} startTime Audio sprite property used to apply an offset, in milliseconds.\n * @param {Number} duration Audio sprite property used to set the time the clip plays for, in milliseconds.\n * @param {Object} playbackResource Any resource needed by plugin to support audio playback.\n * @extends EventDispatcher\n * @constructor\n */\n\n(function () {\n\t\"use strict\";\n\n\n// Constructor:\n\tvar AbstractSoundInstance = function (src, startTime, duration, playbackResource) {\n\t\tthis.EventDispatcher_constructor();\n\n\n\t// public properties:\n\t\t/**\n\t\t * The source of the sound.\n\t\t * @property src\n\t\t * @type {String}\n\t\t * @default null\n\t\t */\n\t\tthis.src = src;\n\n\t\t/**\n\t\t * The unique ID of the instance. This is set by {{#crossLink \"Sound\"}}{{/crossLink}}.\n\t\t * @property uniqueId\n\t\t * @type {String} | Number\n\t\t * @default -1\n\t\t */\n\t\tthis.uniqueId = -1;\n\n\t\t/**\n\t\t * The play state of the sound. Play states are defined as constants on {{#crossLink \"Sound\"}}{{/crossLink}}.\n\t\t * @property playState\n\t\t * @type {String}\n\t\t * @default null\n\t\t */\n\t\tthis.playState = null;\n\n\t\t/**\n\t\t * A Timeout created by {{#crossLink \"Sound\"}}{{/crossLink}} when this AbstractSoundInstance is played with a delay.\n\t\t * This allows AbstractSoundInstance to remove the delay if stop, pause, or cleanup are called before playback begins.\n\t\t * @property delayTimeoutId\n\t\t * @type {timeoutVariable}\n\t\t * @default null\n\t\t * @protected\n\t\t * @since 0.4.0\n\t\t */\n\t\tthis.delayTimeoutId = null;\n\t\t// TODO consider moving delay into AbstractSoundInstance so it can be handled by plugins\n\n\n\t// private properties\n\t// Getter / Setter Properties\n\t\t// OJR TODO find original reason that we didn't use defined functions. I think it was performance related\n\t\t/**\n\t\t * The volume of the sound, between 0 and 1.\n\t\t *\n\t\t * The actual output volume of a sound can be calculated using:\n\t\t * myInstance.volume * createjs.Sound.getVolume();\n\t\t *\n\t\t * @property volume\n\t\t * @type {Number}\n\t\t * @default 1\n\t\t */\n\t\tthis._volume = 1;\n\t\tObject.defineProperty(this, \"volume\", {\n\t\t\tget: this.getVolume,\n\t\t\tset: this.setVolume\n\t\t});\n\n\t\t/**\n\t\t * The pan of the sound, between -1 (left) and 1 (right). Note that pan is not supported by HTML Audio.\n\t\t *\n\t\t *
Note in WebAudioPlugin this only gives us the \"x\" value of what is actually 3D audio.\n\t\t *\n\t\t * @property pan\n\t\t * @type {Number}\n\t\t * @default 0\n\t\t */\n\t\tthis._pan = 0;\n\t\tObject.defineProperty(this, \"pan\", {\n\t\t\tget: this.getPan,\n\t\t\tset: this.setPan\n\t\t});\n\n\t\t/**\n\t\t * Audio sprite property used to determine the starting offset.\n\t\t * @property startTime\n\t\t * @type {Number}\n\t\t * @default 0\n\t\t * @since 0.6.1\n\t\t */\n\t\tthis._startTime = Math.max(0, startTime || 0);\n\t\tObject.defineProperty(this, \"startTime\", {\n\t\t\tget: this.getStartTime,\n\t\t\tset: this.setStartTime\n\t\t});\n\n\t\t/**\n\t\t * Sets or gets the length of the audio clip, value is in milliseconds.\n\t\t *\n\t\t * @property duration\n\t\t * @type {Number}\n\t\t * @default 0\n\t\t * @since 0.6.0\n\t\t */\n\t\tthis._duration = Math.max(0, duration || 0);\n\t\tObject.defineProperty(this, \"duration\", {\n\t\t\tget: this.getDuration,\n\t\t\tset: this.setDuration\n\t\t});\n\n\t\t/**\n\t\t * Object that holds plugin specific resource need for audio playback.\n\t\t * This is set internally by the plugin. For example, WebAudioPlugin will set an array buffer,\n\t\t * HTMLAudioPlugin will set a tag, FlashAudioPlugin will set a flash reference.\n\t\t *\n\t\t * @property playbackResource\n\t\t * @type {Object}\n\t\t * @default null\n\t\t */\n\t\tthis._playbackResource = null;\n\t\tObject.defineProperty(this, \"playbackResource\", {\n\t\t\tget: this.getPlaybackResource,\n\t\t\tset: this.setPlaybackResource\n\t\t});\n\t\tif(playbackResource !== false && playbackResource !== true) { this.setPlaybackResource(playbackResource); }\n\n\t\t/**\n\t\t * The position of the playhead in milliseconds. This can be set while a sound is playing, paused, or stopped.\n\t\t *\n\t\t * @property position\n\t\t * @type {Number}\n\t\t * @default 0\n\t\t * @since 0.6.0\n\t\t */\n\t\tthis._position = 0;\n\t\tObject.defineProperty(this, \"position\", {\n\t\t\tget: this.getPosition,\n\t\t\tset: this.setPosition\n\t\t});\n\n\t\t/**\n\t\t * The number of play loops remaining. Negative values will loop infinitely.\n\t\t *\n\t\t * @property loop\n\t\t * @type {Number}\n\t\t * @default 0\n\t\t * @public\n\t\t * @since 0.6.0\n\t\t */\n\t\tthis._loop = 0;\n\t\tObject.defineProperty(this, \"loop\", {\n\t\t\tget: this.getLoop,\n\t\t\tset: this.setLoop\n\t\t});\n\n\t\t/**\n\t\t * Mutes or unmutes the current audio instance.\n\t\t *\n\t\t * @property muted\n\t\t * @type {Boolean}\n\t\t * @default false\n\t\t * @since 0.6.0\n\t\t */\n\t\tthis._muted = false;\n\t\tObject.defineProperty(this, \"muted\", {\n\t\t\tget: this.getMuted,\n\t\t\tset: this.setMuted\n\t\t});\n\n\t\t/**\n\t\t * Pauses or resumes the current audio instance.\n\t\t *\n\t\t * @property paused\n\t\t * @type {Boolean}\n\t\t */\n\t\tthis._paused = false;\n\t\tObject.defineProperty(this, \"paused\", {\n\t\t\tget: this.getPaused,\n\t\t\tset: this.setPaused\n\t\t});\n\n\n\t// Events\n\t\t/**\n\t\t * The event that is fired when playback has started successfully.\n\t\t * @event succeeded\n\t\t * @param {Object} target The object that dispatched the event.\n\t\t * @param {String} type The event type.\n\t\t * @since 0.4.0\n\t\t */\n\n\t\t/**\n\t\t * The event that is fired when playback is interrupted. This happens when another sound with the same\n\t\t * src property is played using an interrupt value that causes this instance to stop playing.\n\t\t * @event interrupted\n\t\t * @param {Object} target The object that dispatched the event.\n\t\t * @param {String} type The event type.\n\t\t * @since 0.4.0\n\t\t */\n\n\t\t/**\n\t\t * The event that is fired when playback has failed. This happens when there are too many channels with the same\n\t\t * src property already playing (and the interrupt value doesn't cause an interrupt of another instance), or\n\t\t * the sound could not be played, perhaps due to a 404 error.\n\t\t * @event failed\n\t\t * @param {Object} target The object that dispatched the event.\n\t\t * @param {String} type The event type.\n\t\t * @since 0.4.0\n\t\t */\n\n\t\t/**\n\t\t * The event that is fired when a sound has completed playing but has loops remaining.\n\t\t * @event loop\n\t\t * @param {Object} target The object that dispatched the event.\n\t\t * @param {String} type The event type.\n\t\t * @since 0.4.0\n\t\t */\n\n\t\t/**\n\t\t * The event that is fired when playback completes. This means that the sound has finished playing in its\n\t\t * entirety, including its loop iterations.\n\t\t * @event complete\n\t\t * @param {Object} target The object that dispatched the event.\n\t\t * @param {String} type The event type.\n\t\t * @since 0.4.0\n\t\t */\n\t};\n\n\tvar p = createjs.extend(AbstractSoundInstance, createjs.EventDispatcher);\n\n\t// TODO: deprecated\n\t// p.initialize = function() {}; // searchable for devs wondering where it is. REMOVED. See docs for details.\n\n\n// Public Methods:\n\t/**\n\t * Play an instance. This method is intended to be called on SoundInstances that already exist (created\n\t * with the Sound API {{#crossLink \"Sound/createInstance\"}}{{/crossLink}} or {{#crossLink \"Sound/play\"}}{{/crossLink}}).\n\t *\n\t * Example
\n\t *\n\t * var myInstance = createjs.Sound.createInstance(mySrc);\n\t * myInstance.play({interrupt:createjs.Sound.INTERRUPT_ANY, loop:2, pan:0.5});\n\t *\n\t * Note that if this sound is already playing, this call will still set the passed in parameters.\n\n\t * Parameters Deprecated
\n\t * The parameters for this method are deprecated in favor of a single parameter that is an Object or {{#crossLink \"PlayPropsConfig\"}}{{/crossLink}}.\n\t *\n\t * @method play\n\t * @param {String | Object} [interrupt=\"none\"|options] This parameter will be renamed playProps in the next release.
\n\t * This parameter can be an instance of {{#crossLink \"PlayPropsConfig\"}}{{/crossLink}} or an Object that contains any or all optional properties by name,\n\t * including: interrupt, delay, offset, loop, volume, pan, startTime, and duration (see the above code sample).\n\t *
OR
\n\t * Deprecated How to interrupt any currently playing instances of audio with the same source,\n\t * if the maximum number of instances of the sound are already playing. Values are defined as INTERRUPT_TYPE\n\t * constants on the Sound class, with the default defined by {{#crossLink \"Sound/defaultInterruptBehavior:property\"}}{{/crossLink}}.\n\t * @param {Number} [delay=0] Deprecated The amount of time to delay the start of audio playback, in milliseconds.\n\t * @param {Number} [offset=0] Deprecated The offset from the start of the audio to begin playback, in milliseconds.\n\t * @param {Number} [loop=0] Deprecated How many times the audio loops when it reaches the end of playback. The default is 0 (no\n\t * loops), and -1 can be used for infinite playback.\n\t * @param {Number} [volume=1] Deprecated The volume of the sound, between 0 and 1. Note that the master volume is applied\n\t * against the individual volume.\n\t * @param {Number} [pan=0] Deprecated The left-right pan of the sound (if supported), between -1 (left) and 1 (right).\n\t * Note that pan is not supported for HTML Audio.\n\t * @return {AbstractSoundInstance} A reference to itself, intended for chaining calls.\n\t */\n\tp.play = function (interrupt, delay, offset, loop, volume, pan) {\n\t\tvar playProps;\n\t\tif (interrupt instanceof Object || interrupt instanceof createjs.PlayPropsConfig) {\n\t\t\tplayProps = createjs.PlayPropsConfig.create(interrupt);\n\t\t} else {\n\t\t\tplayProps = createjs.PlayPropsConfig.create({interrupt:interrupt, delay:delay, offset:offset, loop:loop, volume:volume, pan:pan});\n\t\t}\n\n\t\tif (this.playState == createjs.Sound.PLAY_SUCCEEDED) {\n\t\t\tthis.applyPlayProps(playProps);\n\t\t\tif (this._paused) {\tthis.setPaused(false); }\n\t\t\treturn;\n\t\t}\n\t\tthis._cleanUp();\n\t\tcreatejs.Sound._playInstance(this, playProps);\t// make this an event dispatch??\n\t\treturn this;\n\t};\n\n\t/**\n\t * Stop playback of the instance. Stopped sounds will reset their position to 0, and calls to {{#crossLink \"AbstractSoundInstance/resume\"}}{{/crossLink}}\n\t * will fail. To start playback again, call {{#crossLink \"AbstractSoundInstance/play\"}}{{/crossLink}}.\n *\n * If you don't want to lose your position use yourSoundInstance.paused = true instead. {{#crossLink \"AbstractSoundInstance/paused\"}}{{/crossLink}}.\n\t *\n\t * Example
\n\t *\n\t * myInstance.stop();\n\t *\n\t * @method stop\n\t * @return {AbstractSoundInstance} A reference to itself, intended for chaining calls.\n\t */\n\tp.stop = function () {\n\t\tthis._position = 0;\n\t\tthis._paused = false;\n\t\tthis._handleStop();\n\t\tthis._cleanUp();\n\t\tthis.playState = createjs.Sound.PLAY_FINISHED;\n\t\treturn this;\n\t};\n\n\t/**\n\t * Remove all external references and resources from AbstractSoundInstance. Note this is irreversible and AbstractSoundInstance will no longer work\n\t * @method destroy\n\t * @since 0.6.0\n\t */\n\tp.destroy = function() {\n\t\tthis._cleanUp();\n\t\tthis.src = null;\n\t\tthis.playbackResource = null;\n\n\t\tthis.removeAllEventListeners();\n\t};\n\n\t/**\n\t * Takes an PlayPropsConfig or Object with the same properties and sets them on this instance.\n\t * @method applyPlayProps\n\t * @param {PlayPropsConfig | Object} playProps A PlayPropsConfig or object containing the same properties.\n\t * @since 0.6.1\n\t * @return {AbstractSoundInstance} A reference to itself, intended for chaining calls.\n\t */\n\tp.applyPlayProps = function(playProps) {\n\t\tif (playProps.offset != null) { this.setPosition(playProps.offset) }\n\t\tif (playProps.loop != null) { this.setLoop(playProps.loop); }\n\t\tif (playProps.volume != null) { this.setVolume(playProps.volume); }\n\t\tif (playProps.pan != null) { this.setPan(playProps.pan); }\n\t\tif (playProps.startTime != null) {\n\t\t\tthis.setStartTime(playProps.startTime);\n\t\t\tthis.setDuration(playProps.duration);\n\t\t}\n\t\treturn this;\n\t};\n\n\tp.toString = function () {\n\t\treturn \"[AbstractSoundInstance]\";\n\t};\n\n// get/set methods that allow support for IE8\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/paused:property\"}}{{/crossLink}} directly as a property,\n\t *\n\t * @deprecated\n\t * @method getPaused\n\t * @returns {boolean} If the instance is currently paused\n\t * @since 0.6.0\n\t */\n\tp.getPaused = function() {\n\t\treturn this._paused;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/paused:property\"}}{{/crossLink}} directly as a property\n\t *\n\t * @deprecated\n\t * @method setPaused\n\t * @param {boolean} value\n\t * @since 0.6.0\n\t * @return {AbstractSoundInstance} A reference to itself, intended for chaining calls.\n\t */\n\tp.setPaused = function (value) {\n\t\tif ((value !== true && value !== false) || this._paused == value) {return;}\n\t\tif (value == true && this.playState != createjs.Sound.PLAY_SUCCEEDED) {return;}\n\t\tthis._paused = value;\n\t\tif(value) {\n\t\t\tthis._pause();\n\t\t} else {\n\t\t\tthis._resume();\n\t\t}\n\t\tclearTimeout(this.delayTimeoutId);\n\t\treturn this;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/volume:property\"}}{{/crossLink}} directly as a property\n\t *\n\t * @deprecated\n\t * @method setVolume\n\t * @param {Number} value The volume to set, between 0 and 1.\n\t * @return {AbstractSoundInstance} A reference to itself, intended for chaining calls.\n\t */\n\tp.setVolume = function (value) {\n\t\tif (value == this._volume) { return this; }\n\t\tthis._volume = Math.max(0, Math.min(1, value));\n\t\tif (!this._muted) {\n\t\t\tthis._updateVolume();\n\t\t}\n\t\treturn this;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/volume:property\"}}{{/crossLink}} directly as a property\n\t *\n\t * @deprecated\n\t * @method getVolume\n\t * @return {Number} The current volume of the sound instance.\n\t */\n\tp.getVolume = function () {\n\t\treturn this._volume;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/muted:property\"}}{{/crossLink}} directly as a property\n\t *\n\t * @deprecated\n\t * @method setMuted\n\t * @param {Boolean} value If the sound should be muted.\n\t * @return {AbstractSoundInstance} A reference to itself, intended for chaining calls.\n\t * @since 0.6.0\n\t */\n\tp.setMuted = function (value) {\n\t\tif (value !== true && value !== false) {return;}\n\t\tthis._muted = value;\n\t\tthis._updateVolume();\n\t\treturn this;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/muted:property\"}}{{/crossLink}} directly as a property\n\t *\n\t * @deprecated\n\t * @method getMuted\n\t * @return {Boolean} If the sound is muted.\n\t * @since 0.6.0\n\t */\n\tp.getMuted = function () {\n\t\treturn this._muted;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/pan:property\"}}{{/crossLink}} directly as a property\n\t *\n\t * @deprecated\n\t * @method setPan\n\t * @param {Number} value The pan value, between -1 (left) and 1 (right).\n\t * @return {AbstractSoundInstance} Returns reference to itself for chaining calls\n\t */\n\tp.setPan = function (value) {\n\t\tif(value == this._pan) { return this; }\n\t\tthis._pan = Math.max(-1, Math.min(1, value));\n\t\tthis._updatePan();\n\t\treturn this;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/pan:property\"}}{{/crossLink}} directly as a property\n\t *\n\t * @deprecated\n\t * @method getPan\n\t * @return {Number} The value of the pan, between -1 (left) and 1 (right).\n\t */\n\tp.getPan = function () {\n\t\treturn this._pan;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/position:property\"}}{{/crossLink}} directly as a property\n\t *\n\t * @deprecated\n\t * @method getPosition\n\t * @return {Number} The position of the playhead in the sound, in milliseconds.\n\t */\n\tp.getPosition = function () {\n\t\tif (!this._paused && this.playState == createjs.Sound.PLAY_SUCCEEDED) {\n\t\t\tthis._position = this._calculateCurrentPosition();\n\t\t}\n\t\treturn this._position;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/position:property\"}}{{/crossLink}} directly as a property\n\t *\n\t * @deprecated\n\t * @method setPosition\n\t * @param {Number} value The position to place the playhead, in milliseconds.\n\t * @return {AbstractSoundInstance} Returns reference to itself for chaining calls\n\t */\n\tp.setPosition = function (value) {\n\t\tthis._position = Math.max(0, value);\n\t\tif (this.playState == createjs.Sound.PLAY_SUCCEEDED) {\n\t\t\tthis._updatePosition();\n\t\t}\n\t\treturn this;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/startTime:property\"}}{{/crossLink}} directly as a property\n\t *\n\t * @deprecated\n\t * @method getStartTime\n\t * @return {Number} The startTime of the sound instance in milliseconds.\n\t */\n\tp.getStartTime = function () {\n\t\treturn this._startTime;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/startTime:property\"}}{{/crossLink}} directly as a property\n\t *\n\t * @deprecated\n\t * @method setStartTime\n\t * @param {number} value The new startTime time in milli seconds.\n\t * @return {AbstractSoundInstance} Returns reference to itself for chaining calls\n\t */\n\tp.setStartTime = function (value) {\n\t\tif (value == this._startTime) { return this; }\n\t\tthis._startTime = Math.max(0, value || 0);\n\t\tthis._updateStartTime();\n\t\treturn this;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/duration:property\"}}{{/crossLink}} directly as a property\n\t *\n\t * @deprecated\n\t * @method getDuration\n\t * @return {Number} The duration of the sound instance in milliseconds.\n\t */\n\tp.getDuration = function () {\n\t\treturn this._duration;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/duration:property\"}}{{/crossLink}} directly as a property\n\t *\n\t * @deprecated\n\t * @method setDuration\n\t * @param {number} value The new duration time in milli seconds.\n\t * @return {AbstractSoundInstance} Returns reference to itself for chaining calls\n\t * @since 0.6.0\n\t */\n\tp.setDuration = function (value) {\n\t\tif (value == this._duration) { return this; }\n\t\tthis._duration = Math.max(0, value || 0);\n\t\tthis._updateDuration();\n\t\treturn this;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/playbackResource:property\"}}{{/crossLink}} directly as a property\n\t *\n\t * @deprecated\n\t * @method setPlayback\n\t * @param {Object} value The new playback resource.\n\t * @return {AbstractSoundInstance} Returns reference to itself for chaining calls\n\t * @since 0.6.0\n\t **/\n\tp.setPlaybackResource = function (value) {\n\t\tthis._playbackResource = value;\n\t\tif (this._duration == 0) { this._setDurationFromSource(); }\n\t\treturn this;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/playbackResource:property\"}}{{/crossLink}} directly as a property\n\t *\n\t * @deprecated\n\t * @method setPlayback\n\t * @param {Object} value The new playback resource.\n\t * @return {Object} playback resource used for playing audio\n\t * @since 0.6.0\n\t **/\n\tp.getPlaybackResource = function () {\n\t\treturn this._playbackResource;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/loop:property\"}}{{/crossLink}} directly as a property\n\t *\n\t * @deprecated\n\t * @method getLoop\n\t * @return {number}\n\t * @since 0.6.0\n\t **/\n\tp.getLoop = function () {\n\t\treturn this._loop;\n\t};\n\n\t/**\n\t * DEPRECATED, please use {{#crossLink \"AbstractSoundInstance/loop:property\"}}{{/crossLink}} directly as a property,\n\t *\n\t * @deprecated\n\t * @method setLoop\n\t * @param {number} value The number of times to loop after play.\n\t * @since 0.6.0\n\t */\n\tp.setLoop = function (value) {\n\t\tif(this._playbackResource != null) {\n\t\t\t// remove looping\n\t\t\tif (this._loop != 0 && value == 0) {\n\t\t\t\tthis._removeLooping(value);\n\t\t\t}\n\t\t\t// add looping\n\t\t\telse if (this._loop == 0 && value != 0) {\n\t\t\t\tthis._addLooping(value);\n\t\t\t}\n\t\t}\n\t\tthis._loop = value;\n\t};\n\n\n// Private Methods:\n\t/**\n\t * A helper method that dispatches all events for AbstractSoundInstance.\n\t * @method _sendEvent\n\t * @param {String} type The event type\n\t * @protected\n\t */\n\tp._sendEvent = function (type) {\n\t\tvar event = new createjs.Event(type);\n\t\tthis.dispatchEvent(event);\n\t};\n\n\t/**\n\t * Clean up the instance. Remove references and clean up any additional properties such as timers.\n\t * @method _cleanUp\n\t * @protected\n\t */\n\tp._cleanUp = function () {\n\t\tclearTimeout(this.delayTimeoutId); // clear timeout that plays delayed sound\n\t\tthis._handleCleanUp();\n\t\tthis._paused = false;\n\n\t\tcreatejs.Sound._playFinished(this);\t// TODO change to an event\n\t};\n\n\t/**\n\t * The sound has been interrupted.\n\t * @method _interrupt\n\t * @protected\n\t */\n\tp._interrupt = function () {\n\t\tthis._cleanUp();\n\t\tthis.playState = createjs.Sound.PLAY_INTERRUPTED;\n\t\tthis._sendEvent(\"interrupted\");\n\t};\n\n\t/**\n\t * Called by the Sound class when the audio is ready to play (delay has completed). Starts sound playing if the\n\t * src is loaded, otherwise playback will fail.\n\t * @method _beginPlaying\n\t * @param {PlayPropsConfig} playProps A PlayPropsConfig object.\n\t * @return {Boolean} If playback succeeded.\n\t * @protected\n\t */\n\t// OJR FlashAudioSoundInstance overwrites\n\tp._beginPlaying = function (playProps) {\n\t\tthis.setPosition(playProps.offset);\n\t\tthis.setLoop(playProps.loop);\n\t\tthis.setVolume(playProps.volume);\n\t\tthis.setPan(playProps.pan);\n\t\tif (playProps.startTime != null) {\n\t\t\tthis.setStartTime(playProps.startTime);\n\t\t\tthis.setDuration(playProps.duration);\n\t\t}\n\n\t\tif (this._playbackResource != null && this._position < this._duration) {\n\t\t\tthis._paused = false;\n\t\t\tthis._handleSoundReady();\n\t\t\tthis.playState = createjs.Sound.PLAY_SUCCEEDED;\n\t\t\tthis._sendEvent(\"succeeded\");\n\t\t\treturn true;\n\t\t} else {\n\t\t\tthis._playFailed();\n\t\t\treturn false;\n\t\t}\n\t};\n\n\t/**\n\t * Play has failed, which can happen for a variety of reasons.\n\t * Cleans up instance and dispatches failed event\n\t * @method _playFailed\n\t * @private\n\t */\n\tp._playFailed = function () {\n\t\tthis._cleanUp();\n\t\tthis.playState = createjs.Sound.PLAY_FAILED;\n\t\tthis._sendEvent(\"failed\");\n\t};\n\n\t/**\n\t * Audio has finished playing. Manually loop it if required.\n\t * @method _handleSoundComplete\n\t * @param event\n\t * @protected\n\t */\n\tp._handleSoundComplete = function (event) {\n\t\tthis._position = 0; // have to set this as it can be set by pause during playback\n\n\t\tif (this._loop != 0) {\n\t\t\tthis._loop--; // NOTE this introduces a theoretical limit on loops = float max size x 2 - 1\n\t\t\tthis._handleLoop();\n\t\t\tthis._sendEvent(\"loop\");\n\t\t\treturn;\n\t\t}\n\n\t\tthis._cleanUp();\n\t\tthis.playState = createjs.Sound.PLAY_FINISHED;\n\t\tthis._sendEvent(\"complete\");\n\t};\n\n// Plugin specific code\n\t/**\n\t * Handles starting playback when the sound is ready for playing.\n\t * @method _handleSoundReady\n\t * @protected\n \t */\n\tp._handleSoundReady = function () {\n\t\t// plugin specific code\n\t};\n\n\t/**\n\t * Internal function used to update the volume based on the instance volume, master volume, instance mute value,\n\t * and master mute value.\n\t * @method _updateVolume\n\t * @protected\n\t */\n\tp._updateVolume = function () {\n\t\t// plugin specific code\n\t};\n\n\t/**\n\t * Internal function used to update the pan\n\t * @method _updatePan\n\t * @protected\n\t * @since 0.6.0\n\t */\n\tp._updatePan = function () {\n\t\t// plugin specific code\n\t};\n\n\t/**\n\t * Internal function used to update the startTime of the audio.\n\t * @method _updateStartTime\n\t * @protected\n\t * @since 0.6.1\n\t */\n\tp._updateStartTime = function () {\n\t\t// plugin specific code\n\t};\n\n\t/**\n\t * Internal function used to update the duration of the audio.\n\t * @method _updateDuration\n\t * @protected\n\t * @since 0.6.0\n\t */\n\tp._updateDuration = function () {\n\t\t// plugin specific code\n\t};\n\n\t/**\n\t * Internal function used to get the duration of the audio from the source we'll be playing.\n\t * @method _updateDuration\n\t * @protected\n\t * @since 0.6.0\n\t */\n\tp._setDurationFromSource = function () {\n\t\t// plugin specific code\n\t};\n\n\t/**\n\t * Internal function that calculates the current position of the playhead and sets this._position to that value\n\t * @method _calculateCurrentPosition\n\t * @protected\n\t * @since 0.6.0\n\t */\n\tp._calculateCurrentPosition = function () {\n\t\t// plugin specific code that sets this.position\n\t};\n\n\t/**\n\t * Internal function used to update the position of the playhead.\n\t * @method _updatePosition\n\t * @protected\n\t * @since 0.6.0\n\t */\n\tp._updatePosition = function () {\n\t\t// plugin specific code\n\t};\n\n\t/**\n\t * Internal function called when looping is removed during playback.\n\t * @method _removeLooping\n\t * @param {number} value The number of times to loop after play.\n\t * @protected\n\t * @since 0.6.0\n\t */\n\tp._removeLooping = function (value) {\n\t\t// plugin specific code\n\t};\n\n\t/**\n\t * Internal function called when looping is added during playback.\n\t * @method _addLooping\n\t * @param {number} value The number of times to loop after play.\n\t * @protected\n\t * @since 0.6.0\n\t */\n\tp._addLooping = function (value) {\n\t\t// plugin specific code\n\t};\n\n\t/**\n\t * Internal function called when pausing playback\n\t * @method _pause\n\t * @protected\n\t * @since 0.6.0\n\t */\n\tp._pause = function () {\n\t\t// plugin specific code\n\t};\n\n\t/**\n\t * Internal function called when resuming playback\n\t * @method _resume\n\t * @protected\n\t * @since 0.6.0\n\t */\n\tp._resume = function () {\n\t\t// plugin specific code\n\t};\n\n\t/**\n\t * Internal function called when stopping playback\n\t * @method _handleStop\n\t * @protected\n\t * @since 0.6.0\n\t */\n\tp._handleStop = function() {\n\t\t// plugin specific code\n\t};\n\n\t/**\n\t * Internal function called when AbstractSoundInstance is being cleaned up\n\t * @method _handleCleanUp\n\t * @protected\n\t * @since 0.6.0\n\t */\n\tp._handleCleanUp = function() {\n\t\t// plugin specific code\n\t};\n\n\t/**\n\t * Internal function called when AbstractSoundInstance has played to end and is looping\n\t * @method _handleLoop\n\t * @protected\n\t * @since 0.6.0\n\t */\n\tp._handleLoop = function () {\n\t\t// plugin specific code\n\t};\n\n\tcreatejs.AbstractSoundInstance = createjs.promote(AbstractSoundInstance, \"EventDispatcher\");\n\tcreatejs.DefaultSoundInstance = createjs.AbstractSoundInstance;\t// used when no plugin is supported\n}());\n\n//##############################################################################\n// AbstractPlugin.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\n// constructor:\n \t/**\n\t * A default plugin class used as a base for all other plugins.\n\t * @class AbstractPlugin\n\t * @constructor\n\t * @since 0.6.0\n\t */\n\n\tvar AbstractPlugin = function () {\n\t// private properties:\n\t\t/**\n\t\t * The capabilities of the plugin.\n\t\t * method and is used internally.\n\t\t * @property _capabilities\n\t\t * @type {Object}\n\t\t * @default null\n\t\t * @protected\n\t\t * @static\n\t\t */\n\t\tthis._capabilities = null;\n\n\t\t/**\n\t\t * Object hash indexed by the source URI of all created loaders, used to properly destroy them if sources are removed.\n\t\t * @type {Object}\n\t\t * @protected\n\t\t */\n\t\tthis._loaders = {};\n\n\t\t/**\n\t\t * Object hash indexed by the source URI of each file to indicate if an audio source has begun loading,\n\t\t * is currently loading, or has completed loading. Can be used to store non boolean data after loading\n\t\t * is complete (for example arrayBuffers for web audio).\n\t\t * @property _audioSources\n\t\t * @type {Object}\n\t\t * @protected\n\t\t */\n\t\tthis._audioSources = {};\n\n\t\t/**\n\t\t * Object hash indexed by the source URI of all created SoundInstances, updates the playbackResource if it loads after they are created,\n\t\t * and properly destroy them if sources are removed\n\t\t * @type {Object}\n\t\t * @protected\n\t\t */\n\t\tthis._soundInstances = {};\n\n\t\t/**\n\t\t * The internal master volume value of the plugin.\n\t\t * @property _volume\n\t\t * @type {Number}\n\t\t * @default 1\n\t\t * @protected\n\t\t */\n\t\tthis._volume = 1;\n\n\t\t/**\n\t\t * A reference to a loader class used by a plugin that must be set.\n\t\t * @type {Object}\n\t\t * @protected\n\t\t */\n\t\tthis._loaderClass;\n\n\t\t/**\n\t\t * A reference to an AbstractSoundInstance class used by a plugin that must be set.\n\t\t * @type {Object}\n\t\t * @protected;\n\t\t */\n\t\tthis._soundInstanceClass;\n\t};\n\tvar p = AbstractPlugin.prototype;\n\n\t/**\n\t * REMOVED. Removed in favor of using `MySuperClass_constructor`.\n\t * See {{#crossLink \"Utility Methods/extend\"}}{{/crossLink}} and {{#crossLink \"Utility Methods/promote\"}}{{/crossLink}}\n\t * for details.\n\t *\n\t * There is an inheritance tutorial distributed with EaselJS in /tutorials/Inheritance.\n\t *\n\t * @method initialize\n\t * @protected\n\t * @deprecated\n\t */\n\t// p.initialize = function() {}; // searchable for devs wondering where it is.\n\n\n// Static Properties:\n// NOTE THESE PROPERTIES NEED TO BE ADDED TO EACH PLUGIN\n\t/**\n\t * The capabilities of the plugin. This is generated via the _generateCapabilities method and is used internally.\n\t * @property _capabilities\n\t * @type {Object}\n\t * @default null\n\t * @protected\n\t * @static\n\t */\n\tAbstractPlugin._capabilities = null;\n\n\t/**\n\t * Determine if the plugin can be used in the current browser/OS.\n\t * @method isSupported\n\t * @return {Boolean} If the plugin can be initialized.\n\t * @static\n\t */\n\tAbstractPlugin.isSupported = function () {\n\t\treturn true;\n\t};\n\n\n// public methods:\n\t/**\n\t * Pre-register a sound for preloading and setup. This is called by {{#crossLink \"Sound\"}}{{/crossLink}}.\n\t * Note all plugins provide a Loader instance, which PreloadJS\n\t * can use to assist with preloading.\n\t * @method register\n\t * @param {String} loadItem An Object containing the source of the audio\n\t * Note that not every plugin will manage this value.\n\t * @return {Object} A result object, containing a \"tag\" for preloading purposes.\n\t */\n\tp.register = function (loadItem) {\n\t\tvar loader = this._loaders[loadItem.src];\n\t\tif(loader && !loader.canceled) {return this._loaders[loadItem.src];}\t// already loading/loaded this, so don't load twice\n\t\t// OJR potential issue that we won't be firing loaded event, might need to trigger if this is already loaded?\n\t\tthis._audioSources[loadItem.src] = true;\n\t\tthis._soundInstances[loadItem.src] = [];\n\t\tloader = new this._loaderClass(loadItem);\n\t\tloader.on(\"complete\", this._handlePreloadComplete, this);\n\t\tthis._loaders[loadItem.src] = loader;\n\t\treturn loader;\n\t};\n\n\t// note sound calls register before calling preload\n\t/**\n\t * Internally preload a sound.\n\t * @method preload\n\t * @param {Loader} loader The sound URI to load.\n\t */\n\tp.preload = function (loader) {\n\t\tloader.on(\"error\", this._handlePreloadError, this);\n\t\tloader.load();\n\t};\n\n\t/**\n\t * Checks if preloading has started for a specific source. If the source is found, we can assume it is loading,\n\t * or has already finished loading.\n\t * @method isPreloadStarted\n\t * @param {String} src The sound URI to check.\n\t * @return {Boolean}\n\t */\n\tp.isPreloadStarted = function (src) {\n\t\treturn (this._audioSources[src] != null);\n\t};\n\n\t/**\n\t * Checks if preloading has finished for a specific source.\n\t * @method isPreloadComplete\n\t * @param {String} src The sound URI to load.\n\t * @return {Boolean}\n\t */\n\tp.isPreloadComplete = function (src) {\n\t\treturn (!(this._audioSources[src] == null || this._audioSources[src] == true));\n\t};\n\n\t/**\n\t * Remove a sound added using {{#crossLink \"WebAudioPlugin/register\"}}{{/crossLink}}. Note this does not cancel a preload.\n\t * @method removeSound\n\t * @param {String} src The sound URI to unload.\n\t */\n\tp.removeSound = function (src) {\n\t\tif (!this._soundInstances[src]) { return; }\n\t\tfor (var i = this._soundInstances[src].length; i--; ) {\n\t\t\tvar item = this._soundInstances[src][i];\n\t\t\titem.destroy();\n\t\t}\n\t\tdelete(this._soundInstances[src]);\n\t\tdelete(this._audioSources[src]);\n\t\tif(this._loaders[src]) { this._loaders[src].destroy(); }\n\t\tdelete(this._loaders[src]);\n\t};\n\n\t/**\n\t * Remove all sounds added using {{#crossLink \"WebAudioPlugin/register\"}}{{/crossLink}}. Note this does not cancel a preload.\n\t * @method removeAllSounds\n\t * @param {String} src The sound URI to unload.\n\t */\n\tp.removeAllSounds = function () {\n\t\tfor(var key in this._audioSources) {\n\t\t\tthis.removeSound(key);\n\t\t}\n\t};\n\n\t/**\n\t * Create a sound instance. If the sound has not been preloaded, it is internally preloaded here.\n\t * @method create\n\t * @param {String} src The sound source to use.\n\t * @param {Number} startTime Audio sprite property used to apply an offset, in milliseconds.\n\t * @param {Number} duration Audio sprite property used to set the time the clip plays for, in milliseconds.\n\t * @return {AbstractSoundInstance} A sound instance for playback and control.\n\t */\n\tp.create = function (src, startTime, duration) {\n\t\tif (!this.isPreloadStarted(src)) {\n\t\t\tthis.preload(this.register(src));\n\t\t}\n\t\tvar si = new this._soundInstanceClass(src, startTime, duration, this._audioSources[src]);\n\t\tthis._soundInstances[src].push(si);\n\t\treturn si;\n\t};\n\n\t// if a plugin does not support volume and mute, it should set these to null\n\t/**\n\t * Set the master volume of the plugin, which affects all SoundInstances.\n\t * @method setVolume\n\t * @param {Number} value The volume to set, between 0 and 1.\n\t * @return {Boolean} If the plugin processes the setVolume call (true). The Sound class will affect all the\n\t * instances manually otherwise.\n\t */\n\tp.setVolume = function (value) {\n\t\tthis._volume = value;\n\t\tthis._updateVolume();\n\t\treturn true;\n\t};\n\n\t/**\n\t * Get the master volume of the plugin, which affects all SoundInstances.\n\t * @method getVolume\n\t * @return {Number} The volume level, between 0 and 1.\n\t */\n\tp.getVolume = function () {\n\t\treturn this._volume;\n\t};\n\n\t/**\n\t * Mute all sounds via the plugin.\n\t * @method setMute\n\t * @param {Boolean} value If all sound should be muted or not. Note that plugin-level muting just looks up\n\t * the mute value of Sound {{#crossLink \"Sound/getMute\"}}{{/crossLink}}, so this property is not used here.\n\t * @return {Boolean} If the mute call succeeds.\n\t */\n\tp.setMute = function (value) {\n\t\tthis._updateVolume();\n\t\treturn true;\n\t};\n\n\t// plugins should overwrite this method\n\tp.toString = function () {\n\t\treturn \"[AbstractPlugin]\";\n\t};\n\n\n// private methods:\n\t/**\n\t * Handles internal preload completion.\n\t * @method _handlePreloadComplete\n\t * @protected\n\t */\n\tp._handlePreloadComplete = function (event) {\n\t\tvar src = event.target.getItem().src;\n\t\tthis._audioSources[src] = event.result;\n\t\tfor (var i = 0, l = this._soundInstances[src].length; i < l; i++) {\n\t\t\tvar item = this._soundInstances[src][i];\n\t\t\titem.setPlaybackResource(this._audioSources[src]);\n\t\t\t// ToDo consider adding play call here if playstate == playfailed\n\t\t}\n\t};\n\n\t/**\n\t * Handles internal preload erros\n\t * @method _handlePreloadError\n\t * @param event\n\t * @protected\n\t */\n\tp._handlePreloadError = function(event) {\n\t\t//delete(this._audioSources[src]);\n\t};\n\n\t/**\n\t * Set the gain value for master audio. Should not be called externally.\n\t * @method _updateVolume\n\t * @protected\n\t */\n\tp._updateVolume = function () {\n\t\t// Plugin Specific code\n\t};\n\n\tcreatejs.AbstractPlugin = AbstractPlugin;\n}());\n\n//##############################################################################\n// WebAudioLoader.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t/**\n\t * Loader provides a mechanism to preload Web Audio content via PreloadJS or internally. Instances are returned to\n\t * the preloader, and the load method is called when the asset needs to be requested.\n\t *\n\t * @class WebAudioLoader\n\t * @param {String} loadItem The item to be loaded\n\t * @extends XHRRequest\n\t * @protected\n\t */\n\tfunction Loader(loadItem) {\n\t\tthis.AbstractLoader_constructor(loadItem, true, createjs.AbstractLoader.SOUND);\n\n\t};\n\tvar p = createjs.extend(Loader, createjs.AbstractLoader);\n\n\t// TODO: deprecated\n\t// p.initialize = function() {}; // searchable for devs wondering where it is. REMOVED. See docs for details.\n\n\n\t/**\n\t * web audio context required for decoding audio\n\t * @property context\n\t * @type {AudioContext}\n\t * @static\n\t */\n\tLoader.context = null;\n\n\n// public methods\n\tp.toString = function () {\n\t\treturn \"[WebAudioLoader]\";\n\t};\n\n\n// private methods\n\tp._createRequest = function() {\n\t\tthis._request = new createjs.XHRRequest(this._item, false);\n\t\tthis._request.setResponseType(\"arraybuffer\");\n\t};\n\n\tp._sendComplete = function (event) {\n\t\t// OJR we leave this wrapped in Loader because we need to reference src and the handler only receives a single argument, the decodedAudio\n\t\tLoader.context.decodeAudioData(this._rawResult,\n\t createjs.proxy(this._handleAudioDecoded, this),\n\t createjs.proxy(this._sendError, this));\n\t};\n\n\n\t/**\n\t* The audio has been decoded.\n\t* @method handleAudioDecoded\n\t* @param decoded\n\t* @protected\n\t*/\n\tp._handleAudioDecoded = function (decodedAudio) {\n\t\tthis._result = decodedAudio;\n\t\tthis.AbstractLoader__sendComplete();\n\t};\n\n\tcreatejs.WebAudioLoader = createjs.promote(Loader, \"AbstractLoader\");\n}());\n\n//##############################################################################\n// WebAudioSoundInstance.js\n//##############################################################################\n\n/**\n * WebAudioSoundInstance extends the base api of {{#crossLink \"AbstractSoundInstance\"}}{{/crossLink}} and is used by\n * {{#crossLink \"WebAudioPlugin\"}}{{/crossLink}}.\n *\n * WebAudioSoundInstance exposes audioNodes for advanced users.\n *\n * @param {String} src The path to and file name of the sound.\n * @param {Number} startTime Audio sprite property used to apply an offset, in milliseconds.\n * @param {Number} duration Audio sprite property used to set the time the clip plays for, in milliseconds.\n * @param {Object} playbackResource Any resource needed by plugin to support audio playback.\n * @class WebAudioSoundInstance\n * @extends AbstractSoundInstance\n * @constructor\n */\n(function () {\n\t\"use strict\";\n\n\tfunction WebAudioSoundInstance(src, startTime, duration, playbackResource) {\n\t\tthis.AbstractSoundInstance_constructor(src, startTime, duration, playbackResource);\n\n\n// public properties\n\t\t/**\n\t\t * NOTE this is only intended for use by advanced users.\n\t\t *
GainNode for controlling WebAudioSoundInstance volume. Connected to the {{#crossLink \"WebAudioSoundInstance/destinationNode:property\"}}{{/crossLink}}.\n\t\t * @property gainNode\n\t\t * @type {AudioGainNode}\n\t\t * @since 0.4.0\n\t\t *\n\t\t */\n\t\tthis.gainNode = s.context.createGain();\n\n\t\t/**\n\t\t * NOTE this is only intended for use by advanced users.\n\t\t *
A panNode allowing left and right audio channel panning only. Connected to WebAudioSoundInstance {{#crossLink \"WebAudioSoundInstance/gainNode:property\"}}{{/crossLink}}.\n\t\t * @property panNode\n\t\t * @type {AudioPannerNode}\n\t\t * @since 0.4.0\n\t\t */\n\t\tthis.panNode = s.context.createPanner();\n\t\tthis.panNode.panningModel = s._panningModel;\n\t\tthis.panNode.connect(this.gainNode);\n\t\tthis._updatePan();\n\n\t\t/**\n\t\t * NOTE this is only intended for use by advanced users.\n\t\t *
sourceNode is the audio source. Connected to WebAudioSoundInstance {{#crossLink \"WebAudioSoundInstance/panNode:property\"}}{{/crossLink}}.\n\t\t * @property sourceNode\n\t\t * @type {AudioNode}\n\t\t * @since 0.4.0\n\t\t *\n\t\t */\n\t\tthis.sourceNode = null;\n\n\n// private properties\n\t\t/**\n\t\t * Timeout that is created internally to handle sound playing to completion.\n\t\t * Stored so we can remove it when stop, pause, or cleanup are called\n\t\t * @property _soundCompleteTimeout\n\t\t * @type {timeoutVariable}\n\t\t * @default null\n\t\t * @protected\n\t\t * @since 0.4.0\n\t\t */\n\t\tthis._soundCompleteTimeout = null;\n\n\t\t/**\n\t\t * NOTE this is only intended for use by very advanced users.\n\t\t * _sourceNodeNext is the audio source for the next loop, inserted in a look ahead approach to allow for smooth\n\t\t * looping. Connected to {{#crossLink \"WebAudioSoundInstance/gainNode:property\"}}{{/crossLink}}.\n\t\t * @property _sourceNodeNext\n\t\t * @type {AudioNode}\n\t\t * @default null\n\t\t * @protected\n\t\t * @since 0.4.1\n\t\t *\n\t\t */\n\t\tthis._sourceNodeNext = null;\n\n\t\t/**\n\t\t * Time audio started playback, in seconds. Used to handle set position, get position, and resuming from paused.\n\t\t * @property _playbackStartTime\n\t\t * @type {Number}\n\t\t * @default 0\n\t\t * @protected\n\t\t * @since 0.4.0\n\t\t */\n\t\tthis._playbackStartTime = 0;\n\n\t\t// Proxies, make removing listeners easier.\n\t\tthis._endedHandler = createjs.proxy(this._handleSoundComplete, this);\n\t};\n\tvar p = createjs.extend(WebAudioSoundInstance, createjs.AbstractSoundInstance);\n\tvar s = WebAudioSoundInstance;\n\n\t// TODO: deprecated\n\t// p.initialize = function() {}; // searchable for devs wondering where it is. REMOVED. See docs for details.\n\n\n\t/**\n\t * Note this is only intended for use by advanced users.\n\t *
Audio context used to create nodes. This is and needs to be the same context used by {{#crossLink \"WebAudioPlugin\"}}{{/crossLink}}.\n \t * @property context\n\t * @type {AudioContext}\n\t * @static\n\t * @since 0.6.0\n\t */\n\ts.context = null;\n\n\t/**\n\t * Note this is only intended for use by advanced users.\n\t *
The scratch buffer that will be assigned to the buffer property of a source node on close. \n\t * This is and should be the same scratch buffer referenced by {{#crossLink \"WebAudioPlugin\"}}{{/crossLink}}.\n \t * @property _scratchBuffer\n\t * @type {AudioBufferSourceNode}\n\t * @static\n\t */\n\ts._scratchBuffer = null;\n\n\t/**\n\t * Note this is only intended for use by advanced users.\n\t *
Audio node from WebAudioPlugin that sequences to context.destination\n\t * @property destinationNode\n\t * @type {AudioNode}\n\t * @static\n\t * @since 0.6.0\n\t */\n\ts.destinationNode = null;\n\n\t/**\n\t * Value to set panning model to equal power for WebAudioSoundInstance. Can be \"equalpower\" or 0 depending on browser implementation.\n\t * @property _panningModel\n\t * @type {Number / String}\n\t * @protected\n\t * @static\n\t * @since 0.6.0\n\t */\n\ts._panningModel = \"equalpower\";\n\n\n// Public methods\n\tp.destroy = function() {\n\t\tthis.AbstractSoundInstance_destroy();\n\n\t\tthis.panNode.disconnect(0);\n\t\tthis.panNode = null;\n\t\tthis.gainNode.disconnect(0);\n\t\tthis.gainNode = null;\n\t};\n\n\tp.toString = function () {\n\t\treturn \"[WebAudioSoundInstance]\";\n\t};\n\n\n// Private Methods\n\tp._updatePan = function() {\n\t\tthis.panNode.setPosition(this._pan, 0, -0.5);\n\t\t// z need to be -0.5 otherwise the sound only plays in left, right, or center\n\t};\n\n\tp._removeLooping = function(value) {\n\t\tthis._sourceNodeNext = this._cleanUpAudioNode(this._sourceNodeNext);\n\t};\n\n\tp._addLooping = function(value) {\n\t\tif (this.playState != createjs.Sound.PLAY_SUCCEEDED) { return; }\n\t\tthis._sourceNodeNext = this._createAndPlayAudioNode(this._playbackStartTime, 0);\n\t};\n\n\tp._setDurationFromSource = function () {\n\t\tthis._duration = this.playbackResource.duration * 1000;\n\t};\n\n\tp._handleCleanUp = function () {\n\t\tif (this.sourceNode && this.playState == createjs.Sound.PLAY_SUCCEEDED) {\n\t\t\tthis.sourceNode = this._cleanUpAudioNode(this.sourceNode);\n\t\t\tthis._sourceNodeNext = this._cleanUpAudioNode(this._sourceNodeNext);\n\t\t}\n\n\t\tif (this.gainNode.numberOfOutputs != 0) {this.gainNode.disconnect(0);}\n\t\t// OJR there appears to be a bug that this doesn't always work in webkit (Chrome and Safari). According to the documentation, this should work.\n\n\t\tclearTimeout(this._soundCompleteTimeout);\n\n\t\tthis._playbackStartTime = 0;\t// This is used by getPosition\n\t};\n\n\t/**\n\t * Turn off and disconnect an audioNode, then set reference to null to release it for garbage collection\n\t * @method _cleanUpAudioNode\n\t * @param audioNode\n\t * @return {audioNode}\n\t * @protected\n\t * @since 0.4.1\n\t */\n\tp._cleanUpAudioNode = function(audioNode) {\n\t\tif(audioNode) {\n\t\t\taudioNode.stop(0);\n\t\t\taudioNode.disconnect(0);\n\t\t\t// necessary to prevent leak on iOS Safari 7-9. will throw in almost all other\n\t\t\t// browser implementations.\n\t\t\ttry { audioNode.buffer = s._scratchBuffer; } catch(e) {}\n\t\t\taudioNode = null;\n\t\t}\n\t\treturn audioNode;\n\t};\n\n\tp._handleSoundReady = function (event) {\n\t\tthis.gainNode.connect(s.destinationNode); // this line can cause a memory leak. Nodes need to be disconnected from the audioDestination or any sequence that leads to it.\n\n\t\tvar dur = this._duration * 0.001;\n\t\tvar pos = this._position * 0.001;\n\t\tif (pos > dur) {pos = dur;}\n\t\tthis.sourceNode = this._createAndPlayAudioNode((s.context.currentTime - dur), pos);\n\t\tthis._playbackStartTime = this.sourceNode.startTime - pos;\n\n\t\tthis._soundCompleteTimeout = setTimeout(this._endedHandler, (dur - pos) * 1000);\n\n\t\tif(this._loop != 0) {\n\t\t\tthis._sourceNodeNext = this._createAndPlayAudioNode(this._playbackStartTime, 0);\n\t\t}\n\t};\n\n\t/**\n\t * Creates an audio node using the current src and context, connects it to the gain node, and starts playback.\n\t * @method _createAndPlayAudioNode\n\t * @param {Number} startTime The time to add this to the web audio context, in seconds.\n\t * @param {Number} offset The amount of time into the src audio to start playback, in seconds.\n\t * @return {audioNode}\n\t * @protected\n\t * @since 0.4.1\n\t */\n\tp._createAndPlayAudioNode = function(startTime, offset) {\n\t\tvar audioNode = s.context.createBufferSource();\n\t\taudioNode.buffer = this.playbackResource;\n\t\taudioNode.connect(this.panNode);\n\t\tvar dur = this._duration * 0.001;\n\t\taudioNode.startTime = startTime + dur;\n\t\taudioNode.start(audioNode.startTime, offset+(this._startTime*0.001), dur - offset);\n\t\treturn audioNode;\n\t};\n\n\tp._pause = function () {\n\t\tthis._position = (s.context.currentTime - this._playbackStartTime) * 1000; // * 1000 to give milliseconds, lets us restart at same point\n\t\tthis.sourceNode = this._cleanUpAudioNode(this.sourceNode);\n\t\tthis._sourceNodeNext = this._cleanUpAudioNode(this._sourceNodeNext);\n\n\t\tif (this.gainNode.numberOfOutputs != 0) {this.gainNode.disconnect(0);}\n\n\t\tclearTimeout(this._soundCompleteTimeout);\n\t};\n\n\tp._resume = function () {\n\t\tthis._handleSoundReady();\n\t};\n\n\t/*\n\tp._handleStop = function () {\n\t\t// web audio does not need to do anything extra\n\t};\n\t*/\n\n\tp._updateVolume = function () {\n\t\tvar newVolume = this._muted ? 0 : this._volume;\n\t \tif (newVolume != this.gainNode.gain.value) {\n\t\t this.gainNode.gain.value = newVolume;\n \t\t}\n\t};\n\n\tp._calculateCurrentPosition = function () {\n\t\treturn ((s.context.currentTime - this._playbackStartTime) * 1000); // pos in seconds * 1000 to give milliseconds\n\t};\n\n\tp._updatePosition = function () {\n\t\tthis.sourceNode = this._cleanUpAudioNode(this.sourceNode);\n\t\tthis._sourceNodeNext = this._cleanUpAudioNode(this._sourceNodeNext);\n\t\tclearTimeout(this._soundCompleteTimeout);\n\n\t\tif (!this._paused) {this._handleSoundReady();}\n\t};\n\n\t// OJR we are using a look ahead approach to ensure smooth looping.\n\t// We add _sourceNodeNext to the audio context so that it starts playing even if this callback is delayed.\n\t// This technique is described here: http://www.html5rocks.com/en/tutorials/audio/scheduling/\n\t// NOTE the cost of this is that our audio loop may not always match the loop event timing precisely.\n\tp._handleLoop = function () {\n\t\tthis._cleanUpAudioNode(this.sourceNode);\n\t\tthis.sourceNode = this._sourceNodeNext;\n\t\tthis._playbackStartTime = this.sourceNode.startTime;\n\t\tthis._sourceNodeNext = this._createAndPlayAudioNode(this._playbackStartTime, 0);\n\t\tthis._soundCompleteTimeout = setTimeout(this._endedHandler, this._duration);\n\t};\n\n\tp._updateDuration = function () {\n\t\tif(this.playState == createjs.Sound.PLAY_SUCCEEDED) {\n\t\t\tthis._pause();\n\t\t\tthis._resume();\n\t\t}\n\t};\n\n\tcreatejs.WebAudioSoundInstance = createjs.promote(WebAudioSoundInstance, \"AbstractSoundInstance\");\n}());\n\n//##############################################################################\n// WebAudioPlugin.js\n//##############################################################################\n\n(function () {\n\n\t\"use strict\";\n\n\t/**\n\t * Play sounds using Web Audio in the browser. The WebAudioPlugin is currently the default plugin, and will be used\n\t * anywhere that it is supported. To change plugin priority, check out the Sound API\n\t * {{#crossLink \"Sound/registerPlugins\"}}{{/crossLink}} method.\n\n\t * Known Browser and OS issues for Web Audio
\n\t * Firefox 25\n\t * - \n\t * mp3 audio files do not load properly on all windows machines, reported here.\n\t *
For this reason it is recommended to pass another FireFox-supported type (i.e. ogg) as the default\n\t * extension, until this bug is resolved\n\t * \n\t *\n\t * Webkit (Chrome and Safari)\n\t * - \n\t * AudioNode.disconnect does not always seem to work. This can cause the file size to grow over time if you\n\t * \t are playing a lot of audio files.\n\t *
\n\t *\n\t * iOS 6 limitations\n\t * \n\t * - \n\t * Sound is initially muted and will only unmute through play being called inside a user initiated event\n\t * (touch/click). Please read the mobile playback notes in the the {{#crossLink \"Sound\"}}{{/crossLink}}\n\t * class for a full overview of the limitations, and how to get around them.\n\t *
\n\t *\t - \n\t *\t A bug exists that will distort un-cached audio when a video element is present in the DOM. You can avoid\n\t *\t this bug by ensuring the audio and video audio share the same sample rate.\n\t *\t
\n\t *
\n\t * @class WebAudioPlugin\n\t * @extends AbstractPlugin\n\t * @constructor\n\t * @since 0.4.0\n\t */\n\tfunction WebAudioPlugin() {\n\t\tthis.AbstractPlugin_constructor();\n\n\n// Private Properties\n\t\t/**\n\t\t * Value to set panning model to equal power for WebAudioSoundInstance. Can be \"equalpower\" or 0 depending on browser implementation.\n\t\t * @property _panningModel\n\t\t * @type {Number / String}\n\t\t * @protected\n\t\t */\n\t\tthis._panningModel = s._panningModel;;\n\n\t\t/**\n\t\t * The web audio context, which WebAudio uses to play audio. All nodes that interact with the WebAudioPlugin\n\t\t * need to be created within this context.\n\t\t * @property context\n\t\t * @type {AudioContext}\n\t\t */\n\t\tthis.context = s.context;\n\n\t\t/**\n\t\t * A DynamicsCompressorNode, which is used to improve sound quality and prevent audio distortion.\n\t\t * It is connected to context.destination.\n\t\t *\n\t\t * Can be accessed by advanced users through createjs.Sound.activePlugin.dynamicsCompressorNode.\n\t\t * @property dynamicsCompressorNode\n\t\t * @type {AudioNode}\n\t\t */\n\t\tthis.dynamicsCompressorNode = this.context.createDynamicsCompressor();\n\t\tthis.dynamicsCompressorNode.connect(this.context.destination);\n\n\t\t/**\n\t\t * A GainNode for controlling master volume. It is connected to {{#crossLink \"WebAudioPlugin/dynamicsCompressorNode:property\"}}{{/crossLink}}.\n\t\t *\n\t\t * Can be accessed by advanced users through createjs.Sound.activePlugin.gainNode.\n\t\t * @property gainNode\n\t\t * @type {AudioGainNode}\n\t\t */\n\t\tthis.gainNode = this.context.createGain();\n\t\tthis.gainNode.connect(this.dynamicsCompressorNode);\n\t\tcreatejs.WebAudioSoundInstance.destinationNode = this.gainNode;\n\n\t\tthis._capabilities = s._capabilities;\n\n\t\tthis._loaderClass = createjs.WebAudioLoader;\n\t\tthis._soundInstanceClass = createjs.WebAudioSoundInstance;\n\n\t\tthis._addPropsToClasses();\n\t}\n\tvar p = createjs.extend(WebAudioPlugin, createjs.AbstractPlugin);\n\n\t// TODO: deprecated\n\t// p.initialize = function() {}; // searchable for devs wondering where it is. REMOVED. See docs for details.\n\n\n// Static Properties\n\tvar s = WebAudioPlugin;\n\t/**\n\t * The capabilities of the plugin. This is generated via the {{#crossLink \"WebAudioPlugin/_generateCapabilities:method\"}}{{/crossLink}}\n\t * method and is used internally.\n\t * @property _capabilities\n\t * @type {Object}\n\t * @default null\n\t * @protected\n\t * @static\n\t */\n\ts._capabilities = null;\n\n\t/**\n\t * Value to set panning model to equal power for WebAudioSoundInstance. Can be \"equalpower\" or 0 depending on browser implementation.\n\t * @property _panningModel\n\t * @type {Number / String}\n\t * @protected\n\t * @static\n\t */\n\ts._panningModel = \"equalpower\";\n\n\t/**\n\t * The web audio context, which WebAudio uses to play audio. All nodes that interact with the WebAudioPlugin\n\t * need to be created within this context.\n\t *\n\t * Advanced users can set this to an existing context, but must do so before they call\n\t * {{#crossLink \"Sound/registerPlugins\"}}{{/crossLink}} or {{#crossLink \"Sound/initializeDefaultPlugins\"}}{{/crossLink}}.\n\t *\n\t * @property context\n\t * @type {AudioContext}\n\t * @static\n\t */\n\ts.context = null;\n\n\t/**\n\t * The scratch buffer that will be assigned to the buffer property of a source node on close.\n\t * Works around an iOS Safari bug: https://github.com/CreateJS/SoundJS/issues/102\n\t *\n\t * Advanced users can set this to an existing source node, but must do so before they call\n\t * {{#crossLink \"Sound/registerPlugins\"}}{{/crossLink}} or {{#crossLink \"Sound/initializeDefaultPlugins\"}}{{/crossLink}}.\n\t *\n\t * @property _scratchBuffer\n\t * @type {AudioBuffer}\n\t * @protected\n\t * @static\n\t */\n\t s._scratchBuffer = null;\n\n\t/**\n\t * Indicated whether audio on iOS has been unlocked, which requires a touchend/mousedown event that plays an\n\t * empty sound.\n\t * @property _unlocked\n\t * @type {boolean}\n\t * @since 0.6.2\n\t * @private\n\t */\n\ts._unlocked = false;\n\n\n// Static Public Methods\n\t/**\n\t * Determine if the plugin can be used in the current browser/OS.\n\t * @method isSupported\n\t * @return {Boolean} If the plugin can be initialized.\n\t * @static\n\t */\n\ts.isSupported = function () {\n\t\t// check if this is some kind of mobile device, Web Audio works with local protocol under PhoneGap and it is unlikely someone is trying to run a local file\n\t\tvar isMobilePhoneGap = createjs.BrowserDetect.isIOS || createjs.BrowserDetect.isAndroid || createjs.BrowserDetect.isBlackberry;\n\t\t// OJR isMobile may be redundant with _isFileXHRSupported available. Consider removing.\n\t\tif (location.protocol == \"file:\" && !isMobilePhoneGap && !this._isFileXHRSupported()) { return false; } // Web Audio requires XHR, which is not usually available locally\n\t\ts._generateCapabilities();\n\t\tif (s.context == null) {return false;}\n\t\treturn true;\n\t};\n\n\t/**\n\t * Plays an empty sound in the web audio context. This is used to enable web audio on iOS devices, as they\n\t * require the first sound to be played inside of a user initiated event (touch/click). This is called when\n\t * {{#crossLink \"WebAudioPlugin\"}}{{/crossLink}} is initialized (by Sound {{#crossLink \"Sound/initializeDefaultPlugins\"}}{{/crossLink}}\n\t * for example).\n\t *\n\t * Example
\n\t *\n\t * function handleTouch(event) {\n\t * createjs.WebAudioPlugin.playEmptySound();\n\t * }\n\t *\n\t * @method playEmptySound\n\t * @static\n\t * @since 0.4.1\n\t */\n\ts.playEmptySound = function() {\n\t\tif (s.context == null) {return;}\n\t\tvar source = s.context.createBufferSource();\n\t\tsource.buffer = s._scratchBuffer;\n\t\tsource.connect(s.context.destination);\n\t\tsource.start(0, 0, 0);\n\t};\n\n\n// Static Private Methods\n\t/**\n\t * Determine if XHR is supported, which is necessary for web audio.\n\t * @method _isFileXHRSupported\n\t * @return {Boolean} If XHR is supported.\n\t * @since 0.4.2\n\t * @protected\n\t * @static\n\t */\n\ts._isFileXHRSupported = function() {\n\t\t// it's much easier to detect when something goes wrong, so let's start optimistically\n\t\tvar supported = true;\n\n\t\tvar xhr = new XMLHttpRequest();\n\t\ttry {\n\t\t\txhr.open(\"GET\", \"WebAudioPluginTest.fail\", false); // loading non-existant file triggers 404 only if it could load (synchronous call)\n\t\t} catch (error) {\n\t\t\t// catch errors in cases where the onerror is passed by\n\t\t\tsupported = false;\n\t\t\treturn supported;\n\t\t}\n\t\txhr.onerror = function() { supported = false; }; // cause irrelevant\n\t\t// with security turned off, we can get empty success results, which is actually a failed read (status code 0?)\n\t\txhr.onload = function() { supported = this.status == 404 || (this.status == 200 || (this.status == 0 && this.response != \"\")); };\n\t\ttry {\n\t\t\txhr.send();\n\t\t} catch (error) {\n\t\t\t// catch errors in cases where the onerror is passed by\n\t\t\tsupported = false;\n\t\t}\n\n\t\treturn supported;\n\t};\n\n\t/**\n\t * Determine the capabilities of the plugin. Used internally. Please see the Sound API {{#crossLink \"Sound/getCapabilities\"}}{{/crossLink}}\n\t * method for an overview of plugin capabilities.\n\t * @method _generateCapabilities\n\t * @static\n\t * @protected\n\t */\n\ts._generateCapabilities = function () {\n\t\tif (s._capabilities != null) {return;}\n\t\t// Web Audio can be in any formats supported by the audio element, from http://www.w3.org/TR/webaudio/#AudioContext-section\n\t\tvar t = document.createElement(\"audio\");\n\t\tif (t.canPlayType == null) {return null;}\n\n\t\tif (s.context == null) {\n\t\t\tif (window.AudioContext) {\n\t\t\t\ts.context = new AudioContext();\n\t\t\t} else if (window.webkitAudioContext) {\n\t\t\t\ts.context = new webkitAudioContext();\n\t\t\t} else {\n\t\t\t\treturn null;\n\t\t\t}\n\t\t}\n\t\tif (s._scratchBuffer == null) {\n\t\t\ts._scratchBuffer = s.context.createBuffer(1, 1, 22050);\n\t\t}\n\n\t\ts._compatibilitySetUp();\n\n\t\t// Listen for document level clicks to unlock WebAudio on iOS. See the _unlock method.\n\t\tif (\"ontouchstart\" in window && s.context.state != \"running\") {\n\t\t\ts._unlock(); // When played inside of a touch event, this will enable audio on iOS immediately.\n\t\t\tdocument.addEventListener(\"mousedown\", s._unlock, true);\n\t\t\tdocument.addEventListener(\"touchend\", s._unlock, true);\n\t\t}\n\n\n\t\ts._capabilities = {\n\t\t\tpanning:true,\n\t\t\tvolume:true,\n\t\t\ttracks:-1\n\t\t};\n\n\t\t// determine which extensions our browser supports for this plugin by iterating through Sound.SUPPORTED_EXTENSIONS\n\t\tvar supportedExtensions = createjs.Sound.SUPPORTED_EXTENSIONS;\n\t\tvar extensionMap = createjs.Sound.EXTENSION_MAP;\n\t\tfor (var i = 0, l = supportedExtensions.length; i < l; i++) {\n\t\t\tvar ext = supportedExtensions[i];\n\t\t\tvar playType = extensionMap[ext] || ext;\n\t\t\ts._capabilities[ext] = (t.canPlayType(\"audio/\" + ext) != \"no\" && t.canPlayType(\"audio/\" + ext) != \"\") || (t.canPlayType(\"audio/\" + playType) != \"no\" && t.canPlayType(\"audio/\" + playType) != \"\");\n\t\t} // OJR another way to do this might be canPlayType:\"m4a\", codex: mp4\n\n\t\t// 0=no output, 1=mono, 2=stereo, 4=surround, 6=5.1 surround.\n\t\t// See http://www.w3.org/TR/webaudio/#AudioChannelSplitter for more details on channels.\n\t\tif (s.context.destination.numberOfChannels < 2) {\n\t\t\ts._capabilities.panning = false;\n\t\t}\n\t};\n\n\t/**\n\t * Set up compatibility if only deprecated web audio calls are supported.\n\t * See http://www.w3.org/TR/webaudio/#DeprecationNotes\n\t * Needed so we can support new browsers that don't support deprecated calls (Firefox) as well as old browsers that\n\t * don't support new calls.\n\t *\n\t * @method _compatibilitySetUp\n\t * @static\n\t * @protected\n\t * @since 0.4.2\n\t */\n\ts._compatibilitySetUp = function() {\n\t\ts._panningModel = \"equalpower\";\n\t\t//assume that if one new call is supported, they all are\n\t\tif (s.context.createGain) { return; }\n\n\t\t// simple name change, functionality the same\n\t\ts.context.createGain = s.context.createGainNode;\n\n\t\t// source node, add to prototype\n\t\tvar audioNode = s.context.createBufferSource();\n\t\taudioNode.__proto__.start = audioNode.__proto__.noteGrainOn;\t// note that noteGrainOn requires all 3 parameters\n\t\taudioNode.__proto__.stop = audioNode.__proto__.noteOff;\n\n\t\t// panningModel\n\t\ts._panningModel = 0;\n\t};\n\n\t/**\n\t * Try to unlock audio on iOS. This is triggered from either WebAudio plugin setup (which will work if inside of\n\t * a `mousedown` or `touchend` event stack), or the first document touchend/mousedown event. If it fails (touchend\n\t * will fail if the user presses for too long, indicating a scroll event instead of a click event.\n\t *\n\t * Note that earlier versions of iOS supported `touchstart` for this, but iOS9 removed this functionality. Adding\n\t * a `touchstart` event to support older platforms may preclude a `mousedown` even from getting fired on iOS9, so we\n\t * stick with `mousedown` and `touchend`.\n\t * @method _unlock\n\t * @since 0.6.2\n\t * @private\n\t */\n\ts._unlock = function() {\n\t\tif (s._unlocked) { return; }\n\t\ts.playEmptySound();\n\t\tif (s.context.state == \"running\") {\n\t\t\tdocument.removeEventListener(\"mousedown\", s._unlock, true);\n\t\t\tdocument.removeEventListener(\"touchend\", s._unlock, true);\n\t\t\ts._unlocked = true;\n\t\t}\n\t};\n\n\n// Public Methods\n\tp.toString = function () {\n\t\treturn \"[WebAudioPlugin]\";\n\t};\n\n\n// Private Methods\n\t/**\n\t * Set up needed properties on supported classes WebAudioSoundInstance and WebAudioLoader.\n\t * @method _addPropsToClasses\n\t * @static\n\t * @protected\n\t * @since 0.6.0\n\t */\n\tp._addPropsToClasses = function() {\n\t\tvar c = this._soundInstanceClass;\n\t\tc.context = this.context;\n\t\tc._scratchBuffer = s._scratchBuffer;\n\t\tc.destinationNode = this.gainNode;\n\t\tc._panningModel = this._panningModel;\n\n\t\tthis._loaderClass.context = this.context;\n\t};\n\n\n\t/**\n\t * Set the gain value for master audio. Should not be called externally.\n\t * @method _updateVolume\n\t * @protected\n\t */\n\tp._updateVolume = function () {\n\t\tvar newVolume = createjs.Sound._masterMute ? 0 : this._volume;\n\t\tif (newVolume != this.gainNode.gain.value) {\n\t\t\tthis.gainNode.gain.value = newVolume;\n\t\t}\n\t};\n\n\tcreatejs.WebAudioPlugin = createjs.promote(WebAudioPlugin, \"AbstractPlugin\");\n}());\n\n//##############################################################################\n// HTMLAudioTagPool.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t/**\n\t * HTMLAudioTagPool is an object pool for HTMLAudio tag instances.\n\t * @class HTMLAudioTagPool\n\t * @param {String} src The source of the channel.\n\t * @protected\n\t */\n\tfunction HTMLAudioTagPool() {\n\t\t\tthrow \"HTMLAudioTagPool cannot be instantiated\";\n\t}\n\n\tvar s = HTMLAudioTagPool;\n\n// Static Properties\n\t/**\n\t * A hash lookup of each base audio tag, indexed by the audio source.\n\t * @property _tags\n\t * @type {{}}\n\t * @static\n\t * @protected\n\t */\n\ts._tags = {};\n\n\t/**\n\t * An object pool for html audio tags\n\t * @property _tagPool\n\t * @type {TagPool}\n\t * @static\n\t * @protected\n\t */\n\ts._tagPool = new TagPool();\n\n\t/**\n\t * A hash lookup of if a base audio tag is available, indexed by the audio source\n\t * @property _tagsUsed\n\t * @type {{}}\n\t * @protected\n\t * @static\n\t */\n\ts._tagUsed = {};\n\n// Static Methods\n\t/**\n\t * Get an audio tag with the given source.\n\t * @method get\n\t * @param {String} src The source file used by the audio tag.\n\t * @static\n\t */\n\t s.get = function (src) {\n\t\tvar t = s._tags[src];\n\t\tif (t == null) {\n\t\t\t// create new base tag\n\t\t\tt = s._tags[src] = s._tagPool.get();\n\t\t\tt.src = src;\n\t\t} else {\n\t\t\t// get base or pool\n\t\t\tif (s._tagUsed[src]) {\n\t\t\t\tt = s._tagPool.get();\n\t\t\t\tt.src = src;\n\t\t\t} else {\n\t\t\t\ts._tagUsed[src] = true;\n\t\t\t}\n\t\t}\n\t\treturn t;\n\t };\n\n\t /**\n\t * Return an audio tag to the pool.\n\t * @method set\n\t * @param {String} src The source file used by the audio tag.\n\t * @param {HTMLElement} tag Audio tag to set.\n\t * @static\n\t */\n\t s.set = function (src, tag) {\n\t\t // check if this is base, if yes set boolean if not return to pool\n\t\t if(tag == s._tags[src]) {\n\t\t\t s._tagUsed[src] = false;\n\t\t } else {\n\t\t\t s._tagPool.set(tag);\n\t\t }\n\t };\n\n\t/**\n\t * Delete stored tag reference and return them to pool. Note that if the tag reference does not exist, this will fail.\n\t * @method remove\n\t * @param {String} src The source for the tag\n\t * @return {Boolean} If the TagPool was deleted.\n\t * @static\n\t */\n\ts.remove = function (src) {\n\t\tvar tag = s._tags[src];\n\t\tif (tag == null) {return false;}\n\t\ts._tagPool.set(tag);\n\t\tdelete(s._tags[src]);\n\t\tdelete(s._tagUsed[src]);\n\t\treturn true;\n\t};\n\n\t/**\n\t * Gets the duration of the src audio in milliseconds\n\t * @method getDuration\n\t * @param {String} src The source file used by the audio tag.\n\t * @return {Number} Duration of src in milliseconds\n\t * @static\n\t */\n\ts.getDuration= function (src) {\n\t\tvar t = s._tags[src];\n\t\tif (t == null || !t.duration) {return 0;}\t// OJR duration is NaN if loading has not completed\n\t\treturn t.duration * 1000;\n\t};\n\n\tcreatejs.HTMLAudioTagPool = HTMLAudioTagPool;\n\n\n// ************************************************************************************************************\n\t/**\n\t * The TagPool is an object pool for HTMLAudio tag instances.\n\t * #class TagPool\n\t * @param {String} src The source of the channel.\n\t * @protected\n\t */\n\tfunction TagPool(src) {\n\n// Public Properties\n\t\t/**\n\t\t * A list of all available tags in the pool.\n\t\t * #property tags\n\t\t * @type {Array}\n\t\t * @protected\n\t\t */\n\t\tthis._tags = [];\n\t};\n\n\tvar p = TagPool.prototype;\n\tp.constructor = TagPool;\n\n\n// Public Methods\n\t/**\n\t * Get an HTMLAudioElement for immediate playback. This takes it out of the pool.\n\t * #method get\n\t * @return {HTMLAudioElement} An HTML audio tag.\n\t */\n\tp.get = function () {\n\t\tvar tag;\n\t\tif (this._tags.length == 0) {\n\t\t\ttag = this._createTag();\n\t\t} else {\n\t\t\ttag = this._tags.pop();\n\t\t}\n\t\tif (tag.parentNode == null) {document.body.appendChild(tag);}\n\t\treturn tag;\n\t};\n\n\t/**\n\t * Put an HTMLAudioElement back in the pool for use.\n\t * #method set\n\t * @param {HTMLAudioElement} tag HTML audio tag\n\t */\n\tp.set = function (tag) {\n\t\t// OJR this first step seems unnecessary\n\t\tvar index = createjs.indexOf(this._tags, tag);\n\t\tif (index == -1) {\n\t\t\tthis._tags.src = null;\n\t\t\tthis._tags.push(tag);\n\t\t}\n\t};\n\n\tp.toString = function () {\n\t\treturn \"[TagPool]\";\n\t};\n\n\n// Private Methods\n\t/**\n\t * Create an HTML audio tag.\n\t * #method _createTag\n\t * @param {String} src The source file to set for the audio tag.\n\t * @return {HTMLElement} Returns an HTML audio tag.\n\t * @protected\n\t */\n\tp._createTag = function () {\n\t\tvar tag = document.createElement(\"audio\");\n\t\ttag.autoplay = false;\n\t\ttag.preload = \"none\";\n\t\t//LM: Firefox fails when this the preload=\"none\" for other tags, but it needs to be \"none\" to ensure PreloadJS works.\n\t\treturn tag;\n\t};\n\n}());\n\n//##############################################################################\n// HTMLAudioSoundInstance.js\n//##############################################################################\n\n(function () {\n\t\"use strict\";\n\n\t/**\n\t * HTMLAudioSoundInstance extends the base api of {{#crossLink \"AbstractSoundInstance\"}}{{/crossLink}} and is used by\n\t * {{#crossLink \"HTMLAudioPlugin\"}}{{/crossLink}}.\n\t *\n\t * @param {String} src The path to and file name of the sound.\n\t * @param {Number} startTime Audio sprite property used to apply an offset, in milliseconds.\n\t * @param {Number} duration Audio sprite property used to set the time the clip plays for, in milliseconds.\n\t * @param {Object} playbackResource Any resource needed by plugin to support audio playback.\n\t * @class HTMLAudioSoundInstance\n\t * @extends AbstractSoundInstance\n\t * @constructor\n\t */\n\tfunction HTMLAudioSoundInstance(src, startTime, duration, playbackResource) {\n\t\tthis.AbstractSoundInstance_constructor(src, startTime, duration, playbackResource);\n\n\n// Private Properties\n\t\tthis._audioSpriteStopTime = null;\n\t\tthis._delayTimeoutId = null;\n\n\t\t// Proxies, make removing listeners easier.\n\t\tthis._endedHandler = createjs.proxy(this._handleSoundComplete, this);\n\t\tthis._readyHandler = createjs.proxy(this._handleTagReady, this);\n\t\tthis._stalledHandler = createjs.proxy(this._playFailed, this);\n\t\tthis._audioSpriteEndHandler = createjs.proxy(this._handleAudioSpriteLoop, this);\n\t\tthis._loopHandler = createjs.proxy(this._handleSoundComplete, this);\n\n\t\tif (duration) {\n\t\t\tthis._audioSpriteStopTime = (startTime + duration) * 0.001;\n\t\t} else {\n\t\t\tthis._duration = createjs.HTMLAudioTagPool.getDuration(this.src);\n\t\t}\n\t}\n\tvar p = createjs.extend(HTMLAudioSoundInstance, createjs.AbstractSoundInstance);\n\n\t// TODO: deprecated\n\t// p.initialize = function() {}; // searchable for devs wondering where it is. REMOVED. See docs for details.\n\n\n// Public Methods\n\t/**\n\t * Called by {{#crossLink \"Sound\"}}{{/crossLink}} when plugin does not handle master volume.\n\t * undoc'd because it is not meant to be used outside of Sound\n\t * #method setMasterVolume\n\t * @param value\n\t */\n\tp.setMasterVolume = function (value) {\n\t\tthis._updateVolume();\n\t};\n\n\t/**\n\t * Called by {{#crossLink \"Sound\"}}{{/crossLink}} when plugin does not handle master mute.\n\t * undoc'd because it is not meant to be used outside of Sound\n\t * #method setMasterMute\n\t * @param value\n\t */\n\tp.setMasterMute = function (isMuted) {\n\t\tthis._updateVolume();\n\t};\n\n\tp.toString = function () {\n\t\treturn \"[HTMLAudioSoundInstance]\";\n\t};\n\n//Private Methods\n\tp._removeLooping = function() {\n\t\tif(this._playbackResource == null) {return;}\n\t\tthis._playbackResource.loop = false;\n\t\tthis._playbackResource.removeEventListener(createjs.HTMLAudioPlugin._AUDIO_SEEKED, this._loopHandler, false);\n\t};\n\n\tp._addLooping = function() {\n\t\tif(this._playbackResource == null || this._audioSpriteStopTime) {return;}\n\t\tthis._playbackResource.addEventListener(createjs.HTMLAudioPlugin._AUDIO_SEEKED, this._loopHandler, false);\n\t\tthis._playbackResource.loop = true;\n\t};\n\n\tp._handleCleanUp = function () {\n\t\tvar tag = this._playbackResource;\n\t\tif (tag != null) {\n\t\t\ttag.pause();\n\t\t\ttag.loop = false;\n\t\t\ttag.removeEventListener(createjs.HTMLAudioPlugin._AUDIO_ENDED, this._endedHandler, false);\n\t\t\ttag.removeEventListener(createjs.HTMLAudioPlugin._AUDIO_READY, this._readyHandler, false);\n\t\t\ttag.removeEventListener(createjs.HTMLAudioPlugin._AUDIO_STALLED, this._stalledHandler, false);\n\t\t\ttag.removeEventListener(createjs.HTMLAudioPlugin._AUDIO_SEEKED, this._loopHandler, false);\n\t\t\ttag.removeEventListener(createjs.HTMLAudioPlugin._TIME_UPDATE, this._audioSpriteEndHandler, false);\n\n\t\t\ttry {\n\t\t\t\ttag.currentTime = this._startTime;\n\t\t\t} catch (e) {\n\t\t\t} // Reset Position\n\t\t\tcreatejs.HTMLAudioTagPool.set(this.src, tag);\n\t\t\tthis._playbackResource = null;\n\t\t}\n\t};\n\n\tp._beginPlaying = function (playProps) {\n\t\tthis._playbackResource = createjs.HTMLAudioTagPool.get(this.src);\n\t\treturn this.AbstractSoundInstance__beginPlaying(playProps);\n\t};\n\n\tp._handleSoundReady = function (event) {\n\t\tif (this._playbackResource.readyState !== 4) {\n\t\t\tvar tag = this._playbackResource;\n\t\t\ttag.addEventListener(createjs.HTMLAudioPlugin._AUDIO_READY, this._readyHandler, false);\n\t\t\ttag.addEventListener(createjs.HTMLAudioPlugin._AUDIO_STALLED, this._stalledHandler, false);\n\t\t\ttag.preload = \"auto\"; // This is necessary for Firefox, as it won't ever \"load\" until this is set.\n\t\t\ttag.load();\n\t\t\treturn;\n\t\t}\n\n\t\tthis._updateVolume();\n\t\tthis._playbackResource.currentTime = (this._startTime + this._position) * 0.001;\n\t\tif (this._audioSpriteStopTime) {\n\t\t\tthis._playbackResource.addEventListener(createjs.HTMLAudioPlugin._TIME_UPDATE, this._audioSpriteEndHandler, false);\n\t\t} else {\n\t\t\tthis._playbackResource.addEventListener(createjs.HTMLAudioPlugin._AUDIO_ENDED, this._endedHandler, false);\n\t\t\tif(this._loop != 0) {\n\t\t\t\tthis._playbackResource.addEventListener(createjs.HTMLAudioPlugin._AUDIO_SEEKED, this._loopHandler, false);\n\t\t\t\tthis._playbackResource.loop = true;\n\t\t\t}\n\t\t}\n\n\t\tthis._playbackResource.play();\n\t};\n\n\t/**\n\t * Used to handle when a tag is not ready for immediate playback when it is returned from the HTMLAudioTagPool.\n\t * @method _handleTagReady\n\t * @param event\n\t * @protected\n\t */\n\tp._handleTagReady = function (event) {\n\t\tthis._playbackResource.removeEventListener(createjs.HTMLAudioPlugin._AUDIO_READY, this._readyHandler, false);\n\t\tthis._playbackResource.removeEventListener(createjs.HTMLAudioPlugin._AUDIO_STALLED, this._stalledHandler, false);\n\n\t\tthis._handleSoundReady();\n\t};\n\n\tp._pause = function () {\n\t\tthis._playbackResource.pause();\n\t};\n\n\tp._resume = function () {\n\t\tthis._playbackResource.play();\n\t};\n\n\tp._updateVolume = function () {\n\t\tif (this._playbackResource != null) {\n\t\t\tvar newVolume = (this._muted || createjs.Sound._masterMute) ? 0 : this._volume * createjs.Sound._masterVolume;\n\t\t\tif (newVolume != this._playbackResource.volume) {this._playbackResource.volume = newVolume;}\n\t\t}\n\t};\n\n\tp._calculateCurrentPosition = function() {\n\t\treturn (this._playbackResource.currentTime * 1000) - this._startTime;\n\t};\n\n\tp._updatePosition = function() {\n\t\tthis._playbackResource.removeEventListener(createjs.HTMLAudioPlugin._AUDIO_SEEKED, this._loopHandler, false);\n\t\tthis._playbackResource.addEventListener(createjs.HTMLAudioPlugin._AUDIO_SEEKED, this._handleSetPositionSeek, false);\n\t\ttry {\n\t\t\tthis._playbackResource.currentTime = (this._position + this._startTime) * 0.001;\n\t\t} catch (error) { // Out of range\n\t\t\tthis._handleSetPositionSeek(null);\n\t\t}\n\t};\n\n\t/**\n\t * Used to enable setting position, as we need to wait for that seek to be done before we add back our loop handling seek listener\n\t * @method _handleSetPositionSeek\n\t * @param event\n\t * @protected\n\t */\n\tp._handleSetPositionSeek = function(event) {\n\t\tif (this._playbackResource == null) { return; }\n\t\tthis._playbackResource.removeEventListener(createjs.HTMLAudioPlugin._AUDIO_SEEKED, this._handleSetPositionSeek, false);\n\t\tthis._playbackResource.addEventListener(createjs.HTMLAudioPlugin._AUDIO_SEEKED, this._loopHandler, false);\n\t};\n\n\t/**\n\t * Timer used to loop audio sprites.\n\t * NOTE because of the inaccuracies in the timeupdate event (15 - 250ms) and in setting the tag to the desired timed\n\t * (up to 300ms), it is strongly recommended not to loop audio sprites with HTML Audio if smooth looping is desired\n\t *\n\t * @method _handleAudioSpriteLoop\n\t * @param event\n\t * @private\n\t */\n\tp._handleAudioSpriteLoop = function (event) {\n\t\tif(this._playbackResource.currentTime <= this._audioSpriteStopTime) {return;}\n\t\tthis._playbackResource.pause();\n\t\tif(this._loop == 0) {\n\t\t\tthis._handleSoundComplete(null);\n\t\t} else {\n\t\t\tthis._position = 0;\n\t\t\tthis._loop--;\n\t\t\tthis._playbackResource.currentTime = this._startTime * 0.001;\n\t\t\tif(!this._paused) {this._playbackResource.play();}\n\t\t\tthis._sendEvent(\"loop\");\n\t\t}\n\t};\n\n\t// NOTE with this approach audio will loop as reliably as the browser allows\n\t// but we could end up sending the loop event after next loop playback begins\n\tp._handleLoop = function (event) {\n\t\tif(this._loop == 0) {\n\t\t\tthis._playbackResource.loop = false;\n\t\t\tthis._playbackResource.removeEventListener(createjs.HTMLAudioPlugin._AUDIO_SEEKED, this._loopHandler, false);\n\t\t}\n\t};\n\n\tp._updateStartTime = function () {\n\t\tthis._audioSpriteStopTime = (this._startTime + this._duration) * 0.001;\n\n\t\tif(this.playState == createjs.Sound.PLAY_SUCCEEDED) {\n\t\t\tthis._playbackResource.removeEventListener(createjs.HTMLAudioPlugin._AUDIO_ENDED, this._endedHandler, false);\n\t\t\tthis._playbackResource.addEventListener(createjs.HTMLAudioPlugin._TIME_UPDATE, this._audioSpriteEndHandler, false);\n\t\t}\n\t};\n\n\tp._updateDuration = function () {\n\t\tthis._audioSpriteStopTime = (this._startTime + this._duration) * 0.001;\n\n\t\tif(this.playState == createjs.Sound.PLAY_SUCCEEDED) {\n\t\t\tthis._playbackResource.removeEventListener(createjs.HTMLAudioPlugin._AUDIO_ENDED, this._endedHandler, false);\n\t\t\tthis._playbackResource.addEventListener(createjs.HTMLAudioPlugin._TIME_UPDATE, this._audioSpriteEndHandler, false);\n\t\t}\n\t};\n\n\tp._setDurationFromSource = function () {\n\t\tthis._duration = createjs.HTMLAudioTagPool.getDuration(this.src);\n\t\tthis._playbackResource = null;\n\t};\n\n\tcreatejs.HTMLAudioSoundInstance = createjs.promote(HTMLAudioSoundInstance, \"AbstractSoundInstance\");\n}());\n\n//##############################################################################\n// HTMLAudioPlugin.js\n//##############################################################################\n\n(function () {\n\n\t\"use strict\";\n\n\t/**\n\t * Play sounds using HTML <audio> tags in the browser. This plugin is the second priority plugin installed\n\t * by default, after the {{#crossLink \"WebAudioPlugin\"}}{{/crossLink}}. For older browsers that do not support html\n\t * audio, include and install the {{#crossLink \"FlashAudioPlugin\"}}{{/crossLink}}.\n\t *\n\t * Known Browser and OS issues for HTML Audio
\n\t * All browsers
\n\t * Testing has shown in all browsers there is a limit to how many audio tag instances you are allowed. If you exceed\n\t * this limit, you can expect to see unpredictable results. Please use {{#crossLink \"Sound.MAX_INSTANCES\"}}{{/crossLink}} as\n\t * a guide to how many total audio tags you can safely use in all browsers. This issue is primarily limited to IE9.\n\t *\n * IE html limitations
\n * - There is a delay in applying volume changes to tags that occurs once playback is started. So if you have\n * muted all sounds, they will all play during this delay until the mute applies internally. This happens regardless of\n * when or how you apply the volume change, as the tag seems to need to play to apply it.
\n * - MP3 encoding will not always work for audio tags if it's not default. We've found default encoding with\n * 64kbps works.
\n\t * - Occasionally very short samples will get cut off.
\n\t * - There is a limit to how many audio tags you can load or play at once, which appears to be determined by\n\t * hardware and browser settings. See {{#crossLink \"HTMLAudioPlugin.MAX_INSTANCES\"}}{{/crossLink}} for a safe estimate.\n\t * Note that audio sprites can be used as a solution to this issue.
\n\t *\n\t * Safari limitations
\n\t * - Safari requires Quicktime to be installed for audio playback.
\n\t *\n\t * iOS 6 limitations
\n\t * - can only have one <audio> tag
\n\t * \t\t- can not preload or autoplay the audio
\n\t * \t\t- can not cache the audio
\n\t * \t\t- can not play the audio except inside a user initiated event.
\n\t *\t\t- Note it is recommended to use {{#crossLink \"WebAudioPlugin\"}}{{/crossLink}} for iOS (6+)
\n\t * \t\t- audio sprites can be used to mitigate some of these issues and are strongly recommended on iOS
\n\t *
\n\t *\n\t * Android Native Browser limitations
\n\t * - We have no control over audio volume. Only the user can set volume on their device.
\n\t * - We can only play audio inside a user event (touch/click). This currently means you cannot loop sound or use a delay.
\n\t * Android Chrome 26.0.1410.58 specific limitations
\n\t * - Can only play 1 sound at a time.
\n\t * - Sound is not cached.
\n\t * - Sound can only be loaded in a user initiated touch/click event.
\n\t * - There is a delay before a sound is played, presumably while the src is loaded.
\n\t *
\n\t *\n\t * See {{#crossLink \"Sound\"}}{{/crossLink}} for general notes on known issues.\n\t *\n\t * @class HTMLAudioPlugin\n\t * @extends AbstractPlugin\n\t * @constructor\n\t */\n\tfunction HTMLAudioPlugin() {\n\t\tthis.AbstractPlugin_constructor();\n\n\n\t// Public Properties\n\t\t/**\n\t\t * This is no longer needed as we are now using object pooling for tags.\n\t\t *\n\t\t * NOTE this property only exists as a limitation of HTML audio.\n\t\t * @property defaultNumChannels\n\t\t * @type {Number}\n\t\t * @default 2\n\t\t * @since 0.4.0\n\t\t * @deprecated\n\t\t */\n\t\tthis.defaultNumChannels = 2;\n\n\t\tthis._capabilities = s._capabilities;\n\n\t\tthis._loaderClass = createjs.SoundLoader;\n\t\tthis._soundInstanceClass = createjs.HTMLAudioSoundInstance;\n\t}\n\n\tvar p = createjs.extend(HTMLAudioPlugin, createjs.AbstractPlugin);\n\tvar s = HTMLAudioPlugin;\n\n\t// TODO: deprecated\n\t// p.initialize = function() {}; // searchable for devs wondering where it is. REMOVED. See docs for details.\n\n\n// Static Properties\n\t/**\n\t * The maximum number of instances that can be loaded or played. This is a browser limitation, primarily limited to IE9.\n\t * The actual number varies from browser to browser (and is largely hardware dependant), but this is a safe estimate.\n\t * Audio sprites work around this limitation.\n\t * @property MAX_INSTANCES\n\t * @type {Number}\n\t * @default 30\n\t * @static\n\t */\n\ts.MAX_INSTANCES = 30;\n\n\t/**\n\t * Event constant for the \"canPlayThrough\" event for cleaner code.\n\t * @property _AUDIO_READY\n\t * @type {String}\n\t * @default canplaythrough\n\t * @static\n\t * @protected\n\t */\n\ts._AUDIO_READY = \"canplaythrough\";\n\n\t/**\n\t * Event constant for the \"ended\" event for cleaner code.\n\t * @property _AUDIO_ENDED\n\t * @type {String}\n\t * @default ended\n\t * @static\n\t * @protected\n\t */\n\ts._AUDIO_ENDED = \"ended\";\n\n\t/**\n\t * Event constant for the \"seeked\" event for cleaner code. We utilize this event for maintaining loop events.\n\t * @property _AUDIO_SEEKED\n\t * @type {String}\n\t * @default seeked\n\t * @static\n\t * @protected\n\t */\n\ts._AUDIO_SEEKED = \"seeked\";\n\n\t/**\n\t * Event constant for the \"stalled\" event for cleaner code.\n\t * @property _AUDIO_STALLED\n\t * @type {String}\n\t * @default stalled\n\t * @static\n\t * @protected\n\t */\n\ts._AUDIO_STALLED = \"stalled\";\n\n\t/**\n\t * Event constant for the \"timeupdate\" event for cleaner code. Utilized for looping audio sprites.\n\t * This event callsback ever 15 to 250ms and can be dropped by the browser for performance.\n\t * @property _TIME_UPDATE\n\t * @type {String}\n\t * @default timeupdate\n\t * @static\n\t * @protected\n\t */\n\ts._TIME_UPDATE = \"timeupdate\";\n\n\t/**\n\t * The capabilities of the plugin. This is generated via the {{#crossLink \"HTMLAudioPlugin/_generateCapabilities\"}}{{/crossLink}}\n\t * method. Please see the Sound {{#crossLink \"Sound/getCapabilities\"}}{{/crossLink}} method for an overview of all\n\t * of the available properties.\n\t * @property _capabilities\n\t * @type {Object}\n\t * @protected\n\t * @static\n\t */\n\ts._capabilities = null;\n\n\n// Static Methods\n\t/**\n\t * Determine if the plugin can be used in the current browser/OS. Note that HTML audio is available in most modern\n\t * browsers, but is disabled in iOS because of its limitations.\n\t * @method isSupported\n\t * @return {Boolean} If the plugin can be initialized.\n\t * @static\n\t */\n\ts.isSupported = function () {\n\t\ts._generateCapabilities();\n\t\treturn (s._capabilities != null);\n\t};\n\n\t/**\n\t * Determine the capabilities of the plugin. Used internally. Please see the Sound API {{#crossLink \"Sound/getCapabilities\"}}{{/crossLink}}\n\t * method for an overview of plugin capabilities.\n\t * @method _generateCapabilities\n\t * @static\n\t * @protected\n\t */\n\ts._generateCapabilities = function () {\n\t\tif (s._capabilities != null) {return;}\n\t\tvar t = document.createElement(\"audio\");\n\t\tif (t.canPlayType == null) {return null;}\n\n\t\ts._capabilities = {\n\t\t\tpanning:false,\n\t\t\tvolume:true,\n\t\t\ttracks:-1\n\t\t};\n\n\t\t// determine which extensions our browser supports for this plugin by iterating through Sound.SUPPORTED_EXTENSIONS\n\t\tvar supportedExtensions = createjs.Sound.SUPPORTED_EXTENSIONS;\n\t\tvar extensionMap = createjs.Sound.EXTENSION_MAP;\n\t\tfor (var i = 0, l = supportedExtensions.length; i < l; i++) {\n\t\t\tvar ext = supportedExtensions[i];\n\t\t\tvar playType = extensionMap[ext] || ext;\n\t\t\ts._capabilities[ext] = (t.canPlayType(\"audio/\" + ext) != \"no\" && t.canPlayType(\"audio/\" + ext) != \"\") || (t.canPlayType(\"audio/\" + playType) != \"no\" && t.canPlayType(\"audio/\" + playType) != \"\");\n\t\t} // OJR another way to do this might be canPlayType:\"m4a\", codex: mp4\n\t};\n\n\n// public methods\n\tp.register = function (loadItem) {\n\t\tvar tag = createjs.HTMLAudioTagPool.get(loadItem.src);\n\t\tvar loader = this.AbstractPlugin_register(loadItem);\n\t\tloader.setTag(tag);\n\n\t\treturn loader;\n\t};\n\n\tp.removeSound = function (src) {\n\t\tthis.AbstractPlugin_removeSound(src);\n\t\tcreatejs.HTMLAudioTagPool.remove(src);\n\t};\n\n\tp.create = function (src, startTime, duration) {\n\t\tvar si = this.AbstractPlugin_create(src, startTime, duration);\n\t\tsi.setPlaybackResource(null);\n\t\treturn si;\n\t};\n\n\tp.toString = function () {\n\t\treturn \"[HTMLAudioPlugin]\";\n\t};\n\n\t// plugin does not support these\n\tp.setVolume = p.getVolume = p.setMute = null;\n\n\n\tcreatejs.HTMLAudioPlugin = createjs.promote(HTMLAudioPlugin, \"AbstractPlugin\");\n}());\n\n//##############################################################################\n// Tween.js\n//##############################################################################\n\n// TODO: possibly add a END actionsMode (only runs actions that == position)?\n// TODO: evaluate a way to decouple paused from tick registration.\n\n\n\n\n(function() {\n\t\"use strict\";\n\n\n// constructor\n\t/**\n\t * A Tween instance tweens properties for a single target. Instance methods can be chained for easy construction and sequencing:\n\t *\n\t * Example
\n\t *\n\t * target.alpha = 1;\n\t *\t createjs.Tween.get(target)\n\t *\t .wait(500)\n\t *\t .to({alpha:0, visible:false}, 1000)\n\t *\t .call(handleComplete);\n\t *\t function handleComplete() {\n\t *\t \t//Tween complete\n\t *\t }\n\t *\n\t * Multiple tweens can point to the same instance, however if they affect the same properties there could be unexpected\n\t * behaviour. To stop all tweens on an object, use {{#crossLink \"Tween/removeTweens\"}}{{/crossLink}} or pass `override:true`\n\t * in the props argument.\n\t *\n\t * createjs.Tween.get(target, {override:true}).to({x:100});\n\t *\n\t * Subscribe to the {{#crossLink \"Tween/change:event\"}}{{/crossLink}} event to get notified when a property of the\n\t * target is changed.\n\t *\n\t * createjs.Tween.get(target, {override:true}).to({x:100}).addEventListener(\"change\", handleChange);\n\t * function handleChange(event) {\n\t * // The tween changed.\n\t * }\n\t *\n\t * See the Tween {{#crossLink \"Tween/get\"}}{{/crossLink}} method for additional param documentation.\n\t * @class Tween\n\t * @param {Object} target The target object that will have its properties tweened.\n\t * @param {Object} [props] The configuration properties to apply to this tween instance (ex. `{loop:true, paused:true}`.\n\t * All properties default to false. Supported props are:\n\t * - loop: sets the loop property on this tween.
\n\t * - useTicks: uses ticks for all durations instead of milliseconds.
\n\t * - ignoreGlobalPause: sets the {{#crossLink \"Tween/ignoreGlobalPause:property\"}}{{/crossLink}} property on this tween.
\n\t * - override: if true, `Tween.removeTweens(target)` will be called to remove any other tweens with the same target.\n\t *
- paused: indicates whether to start the tween paused.
\n\t * - position: indicates the initial position for this tween.
\n\t * - onChange: specifies a listener for the \"change\" event.
\n\t *
\n\t * @param {Object} [pluginData] An object containing data for use by installed plugins. See individual\n\t * plugins' documentation for details.\n\t * @extends EventDispatcher\n\t * @constructor\n\t */\n\tfunction Tween(target, props, pluginData) {\n\n\t// public properties:\n\t\t/**\n\t\t * Causes this tween to continue playing when a global pause is active. For example, if TweenJS is using {{#crossLink \"Ticker\"}}{{/crossLink}},\n\t\t * then setting this to true (the default) will cause this tween to be paused when Ticker.setPaused(true)\n\t\t * is called. See the Tween {{#crossLink \"Tween/tick\"}}{{/crossLink}} method for more info. Can be set via the props\n\t\t * parameter.\n\t\t * @property ignoreGlobalPause\n\t\t * @type Boolean\n\t\t * @default false\n\t\t */\n\t\tthis.ignoreGlobalPause = false;\n\t\n\t\t/**\n\t\t * If true, the tween will loop when it reaches the end. Can be set via the props param.\n\t\t * @property loop\n\t\t * @type {Boolean}\n\t\t * @default false\n\t\t */\n\t\tthis.loop = false;\n\t\n\t\t/**\n\t\t * Specifies the total duration of this tween in milliseconds (or ticks if useTicks is true).\n\t\t * This value is automatically updated as you modify the tween. Changing it directly could result in unexpected\n\t\t * behaviour.\n\t\t * @property duration\n\t\t * @type {Number}\n\t\t * @default 0\n\t\t * @readonly\n\t\t */\n\t\tthis.duration = 0;\n\t\n\t\t/**\n\t\t * Allows you to specify data that will be used by installed plugins. Each plugin uses this differently, but in general\n\t\t * you specify data by setting it to a property of pluginData with the same name as the plugin class.\n\t\t * @example\n\t\t *\tmyTween.pluginData.PluginClassName = data;\n\t\t *
\n\t\t * Also, most plugins support a property to enable or disable them. This is typically the plugin class name followed by \"_enabled\".
\n\t\t * @example\n\t\t *\tmyTween.pluginData.PluginClassName_enabled = false;
\n\t\t *
\n\t\t * Some plugins also store instance data in this object, usually in a property named _PluginClassName.\n\t\t * See the documentation for individual plugins for more details.\n\t\t * @property pluginData\n\t\t * @type {Object}\n\t\t */\n\t\tthis.pluginData = pluginData || {};\n\t\n\t\t/**\n\t\t * The target of this tween. This is the object on which the tweened properties will be changed. Changing\n\t\t * this property after the tween is created will not have any effect.\n\t\t * @property target\n\t\t * @type {Object}\n\t\t * @readonly\n\t\t */\n\t\tthis.target = target;\n\t\n\t\t/**\n\t\t * The current normalized position of the tween. This will always be a value between 0 and duration.\n\t\t * Changing this property directly will have no effect.\n\t\t * @property position\n\t\t * @type {Object}\n\t\t * @readonly\n\t\t */\n\t\tthis.position = null;\n\t\n\t\t/**\n\t\t * Indicates the tween's current position is within a passive wait.\n\t\t * @property passive\n\t\t * @type {Boolean}\n\t\t * @default false\n\t\t * @readonly\n\t\t **/\n\t\tthis.passive = false;\n\t\n\t// private properties:\t\n\t\t/**\n\t\t * @property _paused\n\t\t * @type {Boolean}\n\t\t * @default false\n\t\t * @protected\n\t\t */\n\t\tthis._paused = false;\n\t\n\t\t/**\n\t\t * @property _curQueueProps\n\t\t * @type {Object}\n\t\t * @protected\n\t\t */\n\t\tthis._curQueueProps = {};\n\t\n\t\t/**\n\t\t * @property _initQueueProps\n\t\t * @type {Object}\n\t\t * @protected\n\t\t */\n\t\tthis._initQueueProps = {};\n\t\n\t\t/**\n\t\t * @property _steps\n\t\t * @type {Array}\n\t\t * @protected\n\t\t */\n\t\tthis._steps = [];\n\t\n\t\t/**\n\t\t * @property _actions\n\t\t * @type {Array}\n\t\t * @protected\n\t\t */\n\t\tthis._actions = [];\n\t\n\t\t/**\n\t\t * Raw position.\n\t\t * @property _prevPosition\n\t\t * @type {Number}\n\t\t * @default 0\n\t\t * @protected\n\t\t */\n\t\tthis._prevPosition = 0;\n\t\n\t\t/**\n\t\t * The position within the current step.\n\t\t * @property _stepPosition\n\t\t * @type {Number}\n\t\t * @default 0\n\t\t * @protected\n\t\t */\n\t\tthis._stepPosition = 0; // this is needed by MovieClip.\n\t\n\t\t/**\n\t\t * Normalized position.\n\t\t * @property _prevPos\n\t\t * @type {Number}\n\t\t * @default -1\n\t\t * @protected\n\t\t */\n\t\tthis._prevPos = -1;\n\t\n\t\t/**\n\t\t * @property _target\n\t\t * @type {Object}\n\t\t * @protected\n\t\t */\n\t\tthis._target = target;\n\t\n\t\t/**\n\t\t * @property _useTicks\n\t\t * @type {Boolean}\n\t\t * @default false\n\t\t * @protected\n\t\t */\n\t\tthis._useTicks = false;\n\t\n\t\t/**\n\t\t * @property _inited\n\t\t * @type {boolean}\n\t\t * @default false\n\t\t * @protected\n\t\t */\n\t\tthis._inited = false;\n\t\t\n\t\t/**\n\t\t * Indicates whether the tween is currently registered with Tween.\n\t\t * @property _registered\n\t\t * @type {boolean}\n\t\t * @default false\n\t\t * @protected\n\t\t */\n\t\tthis._registered = false;\n\n\n\t\tif (props) {\n\t\t\tthis._useTicks = props.useTicks;\n\t\t\tthis.ignoreGlobalPause = props.ignoreGlobalPause;\n\t\t\tthis.loop = props.loop;\n\t\t\tprops.onChange && this.addEventListener(\"change\", props.onChange);\n\t\t\tif (props.override) { Tween.removeTweens(target); }\n\t\t}\n\t\tif (props&&props.paused) { this._paused=true; }\n\t\telse { createjs.Tween._register(this,true); }\n\t\tif (props&&props.position!=null) { this.setPosition(props.position, Tween.NONE); }\n\n\t};\n\n\tvar p = createjs.extend(Tween, createjs.EventDispatcher);\n\n\t// TODO: deprecated\n\t// p.initialize = function() {}; // searchable for devs wondering where it is. REMOVED. See docs for details.\n\t\n\n// static properties\n\t/**\n\t * Constant defining the none actionsMode for use with setPosition.\n\t * @property NONE\n\t * @type Number\n\t * @default 0\n\t * @static\n\t */\n\tTween.NONE = 0;\n\n\t/**\n\t * Constant defining the loop actionsMode for use with setPosition.\n\t * @property LOOP\n\t * @type Number\n\t * @default 1\n\t * @static\n\t */\n\tTween.LOOP = 1;\n\n\t/**\n\t * Constant defining the reverse actionsMode for use with setPosition.\n\t * @property REVERSE\n\t * @type Number\n\t * @default 2\n\t * @static\n\t */\n\tTween.REVERSE = 2;\n\n\t/**\n\t * Constant returned by plugins to tell the tween not to use default assignment.\n\t * @property IGNORE\n\t * @type Object\n\t * @static\n\t */\n\tTween.IGNORE = {};\n\n\t/**\n\t * @property _listeners\n\t * @type Array[Tween]\n\t * @static\n\t * @protected\n\t */\n\tTween._tweens = [];\n\n\t/**\n\t * @property _plugins\n\t * @type Object\n\t * @static\n\t * @protected\n\t */\n\tTween._plugins = {};\n\n\n// static methods\t\n\t/**\n\t * Returns a new tween instance. This is functionally identical to using \"new Tween(...)\", but looks cleaner\n\t * with the chained syntax of TweenJS.\n\t * Example
\n\t *\n\t *\t\tvar tween = createjs.Tween.get(target);\n\t *\n\t * @method get\n\t * @param {Object} target The target object that will have its properties tweened.\n\t * @param {Object} [props] The configuration properties to apply to this tween instance (ex. `{loop:true, paused:true}`).\n\t * All properties default to `false`. Supported props are:\n\t * \n\t * - loop: sets the loop property on this tween.
\n\t * - useTicks: uses ticks for all durations instead of milliseconds.
\n\t * - ignoreGlobalPause: sets the {{#crossLink \"Tween/ignoreGlobalPause:property\"}}{{/crossLink}} property on\n\t * this tween.
\n\t * - override: if true, `createjs.Tween.removeTweens(target)` will be called to remove any other tweens with\n\t * the same target.\n\t *
- paused: indicates whether to start the tween paused.
\n\t * - position: indicates the initial position for this tween.
\n\t * - onChange: specifies a listener for the {{#crossLink \"Tween/change:event\"}}{{/crossLink}} event.
\n\t *
\n\t * @param {Object} [pluginData] An object containing data for use by installed plugins. See individual plugins'\n\t * documentation for details.\n\t * @param {Boolean} [override=false] If true, any previous tweens on the same target will be removed. This is the\n\t * same as calling `Tween.removeTweens(target)`.\n\t * @return {Tween} A reference to the created tween. Additional chained tweens, method calls, or callbacks can be\n\t * applied to the returned tween instance.\n\t * @static\n\t */\n\tTween.get = function(target, props, pluginData, override) {\n\t\tif (override) { Tween.removeTweens(target); }\n\t\treturn new Tween(target, props, pluginData);\n\t};\n\n\t/**\n\t * Advances all tweens. This typically uses the {{#crossLink \"Ticker\"}}{{/crossLink}} class, but you can call it\n\t * manually if you prefer to use your own \"heartbeat\" implementation.\n\t * @method tick\n\t * @param {Number} delta The change in time in milliseconds since the last tick. Required unless all tweens have\n\t * `useTicks` set to true.\n\t * @param {Boolean} paused Indicates whether a global pause is in effect. Tweens with {{#crossLink \"Tween/ignoreGlobalPause:property\"}}{{/crossLink}}\n\t * will ignore this, but all others will pause if this is `true`.\n\t * @static\n\t */\n\tTween.tick = function(delta, paused) {\n\t\tvar tweens = Tween._tweens.slice(); // to avoid race conditions.\n\t\tfor (var i=tweens.length-1; i>=0; i--) {\n\t\t\tvar tween = tweens[i];\n\t\t\tif ((paused && !tween.ignoreGlobalPause) || tween._paused) { continue; }\n\t\t\ttween.tick(tween._useTicks?1:delta);\n\t\t}\n\t};\n\n\t/**\n\t * Handle events that result from Tween being used as an event handler. This is included to allow Tween to handle\n\t * {{#crossLink \"Ticker/tick:event\"}}{{/crossLink}} events from the createjs {{#crossLink \"Ticker\"}}{{/crossLink}}.\n\t * No other events are handled in Tween.\n\t * @method handleEvent\n\t * @param {Object} event An event object passed in by the {{#crossLink \"EventDispatcher\"}}{{/crossLink}}. Will\n\t * usually be of type \"tick\".\n\t * @private\n\t * @static\n\t * @since 0.4.2\n\t */\n\tTween.handleEvent = function(event) {\n\t\tif (event.type == \"tick\") {\n\t\t\tthis.tick(event.delta, event.paused);\n\t\t}\n\t};\n\n\t/**\n\t * Removes all existing tweens for a target. This is called automatically by new tweens if the `override`\n\t * property is `true`.\n\t * @method removeTweens\n\t * @param {Object} target The target object to remove existing tweens from.\n\t * @static\n\t */\n\tTween.removeTweens = function(target) {\n\t\tif (!target.tweenjs_count) { return; }\n\t\tvar tweens = Tween._tweens;\n\t\tfor (var i=tweens.length-1; i>=0; i--) {\n\t\t\tvar tween = tweens[i];\n\t\t\tif (tween._target == target) {\n\t\t\t\ttween._paused = true;\n\t\t\t\ttweens.splice(i, 1);\n\t\t\t}\n\t\t}\n\t\ttarget.tweenjs_count = 0;\n\t};\n\n\t/**\n\t * Stop and remove all existing tweens.\n\t * @method removeAllTweens\n\t * @static\n\t * @since 0.4.1\n\t */\n\tTween.removeAllTweens = function() {\n\t\tvar tweens = Tween._tweens;\n\t\tfor (var i= 0, l=tweens.length; iExample\n\t *\n\t *\t\t//This tween will wait 1s before alpha is faded to 0.\n\t *\t\tcreatejs.Tween.get(target).wait(1000).to({alpha:0}, 1000);\n\t *\n\t * @method wait\n\t * @param {Number} duration The duration of the wait in milliseconds (or in ticks if `useTicks` is true).\n\t * @param {Boolean} [passive] Tween properties will not be updated during a passive wait. This\n\t * is mostly useful for use with {{#crossLink \"Timeline\"}}{{/crossLink}} instances that contain multiple tweens\n\t * affecting the same target at different times.\n\t * @return {Tween} This tween instance (for chaining calls).\n\t **/\n\tp.wait = function(duration, passive) {\n\t\tif (duration == null || duration <= 0) { return this; }\n\t\tvar o = this._cloneProps(this._curQueueProps);\n\t\treturn this._addStep({d:duration, p0:o, e:this._linearEase, p1:o, v:passive});\n\t};\n\n\t/**\n\t * Queues a tween from the current values to the target properties. Set duration to 0 to jump to these value.\n\t * Numeric properties will be tweened from their current value in the tween to the target value. Non-numeric\n\t * properties will be set at the end of the specified duration.\n\t * Example
\n\t *\n\t *\t\tcreatejs.Tween.get(target).to({alpha:0}, 1000);\n\t *\n\t * @method to\n\t * @param {Object} props An object specifying property target values for this tween (Ex. `{x:300}` would tween the x\n\t * property of the target to 300).\n\t * @param {Number} [duration=0] The duration of the wait in milliseconds (or in ticks if `useTicks` is true).\n\t * @param {Function} [ease=\"linear\"] The easing function to use for this tween. See the {{#crossLink \"Ease\"}}{{/crossLink}}\n\t * class for a list of built-in ease functions.\n\t * @return {Tween} This tween instance (for chaining calls).\n\t */\n\tp.to = function(props, duration, ease) {\n\t\tif (isNaN(duration) || duration < 0) { duration = 0; }\n\t\treturn this._addStep({d:duration||0, p0:this._cloneProps(this._curQueueProps), e:ease, p1:this._cloneProps(this._appendQueueProps(props))});\n\t};\n\n\t/**\n\t * Queues an action to call the specified function.\n\t * Example
\n\t *\n\t * \t//would call myFunction() after 1 second.\n\t * \tmyTween.wait(1000).call(myFunction);\n\t *\n\t * @method call\n\t * @param {Function} callback The function to call.\n\t * @param {Array} [params]. The parameters to call the function with. If this is omitted, then the function\n\t * will be called with a single param pointing to this tween.\n\t * @param {Object} [scope]. The scope to call the function in. If omitted, it will be called in the target's\n\t * scope.\n\t * @return {Tween} This tween instance (for chaining calls).\n\t */\n\tp.call = function(callback, params, scope) {\n\t\treturn this._addAction({f:callback, p:params ? params : [this], o:scope ? scope : this._target});\n\t};\n\n\t// TODO: add clarification between this and a 0 duration .to:\n\t/**\n\t * Queues an action to set the specified props on the specified target. If target is null, it will use this tween's\n\t * target.\n\t * Example
\n\t *\n\t *\t\tmyTween.wait(1000).set({visible:false},foo);\n\t *\n\t * @method set\n\t * @param {Object} props The properties to set (ex. `{visible:false}`).\n\t * @param {Object} [target] The target to set the properties on. If omitted, they will be set on the tween's target.\n\t * @return {Tween} This tween instance (for chaining calls).\n\t */\n\tp.set = function(props, target) {\n\t\treturn this._addAction({f:this._set, o:this, p:[props, target ? target : this._target]});\n\t};\n\n\t/**\n\t * Queues an action to play (unpause) the specified tween. This enables you to sequence multiple tweens.\n\t * Example
\n\t *\n\t *\t\tmyTween.to({x:100},500).play(otherTween);\n\t *\n\t * @method play\n\t * @param {Tween} tween The tween to play.\n\t * @return {Tween} This tween instance (for chaining calls).\n\t */\n\tp.play = function(tween) {\n\t\tif (!tween) { tween = this; }\n\t\treturn this.call(tween.setPaused, [false], tween);\n\t};\n\n\t/**\n\t * Queues an action to pause the specified tween.\n\t * @method pause\n\t * @param {Tween} tween The tween to pause. If null, it pauses this tween.\n\t * @return {Tween} This tween instance (for chaining calls)\n\t */\n\tp.pause = function(tween) {\n\t\tif (!tween) { tween = this; }\n\t\treturn this.call(tween.setPaused, [true], tween);\n\t};\n\n\t/**\n\t * Advances the tween to a specified position.\n\t * @method setPosition\n\t * @param {Number} value The position to seek to in milliseconds (or ticks if useTicks is true).\n\t * @param {Number} [actionsMode=1] Specifies how actions are handled (ie. call, set, play, pause):\n\t * \n\t * - {{#crossLink \"Tween/NONE:property\"}}{{/crossLink}} (0) - run no actions.
\n\t * - {{#crossLink \"Tween/LOOP:property\"}}{{/crossLink}} (1) - if new position is less than old, then run all\n\t * actions between old and duration, then all actions between 0 and new.
\n\t * - {{#crossLink \"Tween/REVERSE:property\"}}{{/crossLink}} (2) - if new position is less than old, run all\n\t * actions between them in reverse.
\n\t *
\n\t * @return {Boolean} Returns `true` if the tween is complete (ie. the full tween has run & {{#crossLink \"Tween/loop:property\"}}{{/crossLink}}\n\t * is `false`).\n\t */\n\tp.setPosition = function(value, actionsMode) {\n\t\tif (value < 0) { value = 0; }\n\t\tif (actionsMode == null) { actionsMode = 1; }\n\n\t\t// normalize position:\n\t\tvar t = value;\n\t\tvar end = false;\n\t\tif (t >= this.duration) {\n\t\t\tif (this.loop) { t = t%this.duration; }\n\t\t\telse {\n\t\t\t\tt = this.duration;\n\t\t\t\tend = true;\n\t\t\t}\n\t\t}\n\t\tif (t == this._prevPos) { return end; }\n\n\n\t\tvar prevPos = this._prevPos;\n\t\tthis.position = this._prevPos = t; // set this in advance in case an action modifies position.\n\t\tthis._prevPosition = value;\n\n\t\t// handle tweens:\n\t\tif (this._target) {\n\t\t\tif (end) {\n\t\t\t\t// addresses problems with an ending zero length step.\n\t\t\t\tthis._updateTargetProps(null,1);\n\t\t\t} else if (this._steps.length > 0) {\n\t\t\t\t// find our new tween index:\n\t\t\t\tfor (var i=0, l=this._steps.length; i t) { break; }\n\t\t\t\t}\n\t\t\t\tvar step = this._steps[i-1];\n\t\t\t\tthis._updateTargetProps(step,(this._stepPosition = t-step.t)/step.d);\n\t\t\t}\n\t\t}\n\n\t\t// run actions:\n\t\tif (actionsMode != 0 && this._actions.length > 0) {\n\t\t\tif (this._useTicks) {\n\t\t\t\t// only run the actions we landed on.\n\t\t\t\tthis._runActions(t,t);\n\t\t\t} else if (actionsMode == 1 && t endPos) {\n\t\t\t// running backwards, flip everything:\n\t\t\tsPos = endPos;\n\t\t\tePos = startPos;\n\t\t\ti = j;\n\t\t\tj = k = -1;\n\t\t}\n\t\twhile ((i+=k) != j) {\n\t\t\tvar action = this._actions[i];\n\t\t\tvar pos = action.t;\n\t\t\tif (pos == ePos || (pos > sPos && pos < ePos) || (includeStart && pos == startPos) ) {\n\t\t\t\taction.f.apply(action.o, action.p);\n\t\t\t}\n\t\t}\n\t};\n\n\t/**\n\t * @method _appendQueueProps\n\t * @param {Object} o\n\t * @protected\n\t */\n\tp._appendQueueProps = function(o) {\n\t\tvar arr,oldValue,i, l, injectProps;\n\t\tfor (var n in o) {\n\t\t\tif (this._initQueueProps[n] === undefined) {\n\t\t\t\toldValue = this._target[n];\n\n\t\t\t\t// init plugins:\n\t\t\t\tif (arr = Tween._plugins[n]) {\n\t\t\t\t\tfor (i=0,l=arr.length;i 0) {\n\t\t\tthis._steps.push(o);\n\t\t\to.t = this.duration;\n\t\t\tthis.duration += o.d;\n\t\t}\n\t\treturn this;\n\t};\n\n\t/**\n\t * @method _addAction\n\t * @param {Object} o\n\t * @protected\n\t */\n\tp._addAction = function(o) {\n\t\to.t = this.duration;\n\t\tthis._actions.push(o);\n\t\treturn this;\n\t};\n\n\t/**\n\t * @method _set\n\t * @param {Object} props\n\t * @param {Object} o\n\t * @protected\n\t */\n\tp._set = function(props, o) {\n\t\tfor (var n in props) {\n\t\t\to[n] = props[n];\n\t\t}\n\t};\n\n\tcreatejs.Tween = createjs.promote(Tween, \"EventDispatcher\");\n\n}());\n\n//##############################################################################\n// Timeline.js\n//##############################################################################\n\n(function() {\n\t\"use strict\";\n\t\n\n// constructor\t\n\t/**\n\t * The Timeline class synchronizes multiple tweens and allows them to be controlled as a group. Please note that if a\n\t * timeline is looping, the tweens on it may appear to loop even if the \"loop\" property of the tween is false.\n\t * @class Timeline\n\t * @param {Array} tweens An array of Tweens to add to this timeline. See {{#crossLink \"Timeline/addTween\"}}{{/crossLink}}\n\t * for more info.\n\t * @param {Object} labels An object defining labels for using {{#crossLink \"Timeline/gotoAndPlay\"}}{{/crossLink}}/{{#crossLink \"Timeline/gotoAndStop\"}}{{/crossLink}}.\n\t * See {{#crossLink \"Timeline/setLabels\"}}{{/crossLink}}\n\t * for details.\n\t * @param {Object} props The configuration properties to apply to this tween instance (ex. `{loop:true}`). All properties\n\t * default to false. Supported props are:\n\t * - loop: sets the loop property on this tween.
\n\t * - useTicks: uses ticks for all durations instead of milliseconds.
\n\t * - ignoreGlobalPause: sets the ignoreGlobalPause property on this tween.
\n\t * - paused: indicates whether to start the tween paused.
\n\t * - position: indicates the initial position for this timeline.
\n\t * - onChange: specifies a listener to add for the {{#crossLink \"Timeline/change:event\"}}{{/crossLink}} event.
\n\t *
\n\t * @extends EventDispatcher\n\t * @constructor\n\t **/\n\tfunction Timeline(tweens, labels, props) {\n\t\tthis.EventDispatcher_constructor();\n\n\t// public properties:\n\t\t/**\n\t\t * Causes this timeline to continue playing when a global pause is active.\n\t\t * @property ignoreGlobalPause\n\t\t * @type Boolean\n\t\t **/\n\t\tthis.ignoreGlobalPause = false;\n\n\t\t/**\n\t\t * The total duration of this timeline in milliseconds (or ticks if `useTicks `is `true`). This value is usually\n\t\t * automatically updated as you modify the timeline. See {{#crossLink \"Timeline/updateDuration\"}}{{/crossLink}}\n\t\t * for more information.\n\t\t * @property duration\n\t\t * @type Number\n\t\t * @default 0\n\t\t * @readonly\n\t\t **/\n\t\tthis.duration = 0;\n\n\t\t/**\n\t\t * If true, the timeline will loop when it reaches the end. Can be set via the props param.\n\t\t * @property loop\n\t\t * @type Boolean\n\t\t **/\n\t\tthis.loop = false;\n\n\t\t/**\n\t\t * The current normalized position of the timeline. This will always be a value between 0 and\n\t\t * {{#crossLink \"Timeline/duration:property\"}}{{/crossLink}}.\n\t\t * Changing this property directly will have no effect.\n\t\t * @property position\n\t\t * @type Object\n\t\t * @readonly\n\t\t **/\n\t\tthis.position = null;\n\n\t\t// private properties:\n\t\t/**\n\t\t * @property _paused\n\t\t * @type Boolean\n\t\t * @protected\n\t\t **/\n\t\tthis._paused = false;\n\n\t\t/**\n\t\t * @property _tweens\n\t\t * @type Array[Tween]\n\t\t * @protected\n\t\t **/\n\t\tthis._tweens = [];\n\n\t\t/**\n\t\t * @property _labels\n\t\t * @type Object\n\t\t * @protected\n\t\t **/\n\t\tthis._labels = null;\n\n\t\t/**\n\t\t * @property _labelList\n\t\t * @type Array[Object]\n\t\t * @protected\n\t\t **/\n\t\tthis._labelList = null;\n\n\t\t/**\n\t\t * @property _prevPosition\n\t\t * @type Number\n\t\t * @default 0\n\t\t * @protected\n\t\t **/\n\t\tthis._prevPosition = 0;\n\n\t\t/**\n\t\t * @property _prevPos\n\t\t * @type Number\n\t\t * @default -1\n\t\t * @protected\n\t\t **/\n\t\tthis._prevPos = -1;\n\n\t\t/**\n\t\t * @property _useTicks\n\t\t * @type Boolean\n\t\t * @default false\n\t\t * @protected\n\t\t **/\n\t\tthis._useTicks = false;\n\t\t\n\t\t/**\n\t\t * Indicates whether the timeline is currently registered with Tween.\n\t\t * @property _registered\n\t\t * @type {boolean}\n\t\t * @default false\n\t\t * @protected\n\t\t */\n\t\tthis._registered = false;\n\n\n\t\tif (props) {\n\t\t\tthis._useTicks = props.useTicks;\n\t\t\tthis.loop = props.loop;\n\t\t\tthis.ignoreGlobalPause = props.ignoreGlobalPause;\n\t\t\tprops.onChange&&this.addEventListener(\"change\", props.onChange);\n\t\t}\n\t\tif (tweens) { this.addTween.apply(this, tweens); }\n\t\tthis.setLabels(labels);\n\t\tif (props&&props.paused) { this._paused=true; }\n\t\telse { createjs.Tween._register(this,true); }\n\t\tif (props&&props.position!=null) { this.setPosition(props.position, createjs.Tween.NONE); }\n\t\t\n\t};\n\t\n\tvar p = createjs.extend(Timeline, createjs.EventDispatcher);\n\n\t// TODO: deprecated\n\t// p.initialize = function() {}; // searchable for devs wondering where it is. REMOVED. See docs for details.\n\n\t\n// events:\n\t/**\n\t * Called whenever the timeline's position changes.\n\t * @event change\n\t * @since 0.5.0\n\t **/\n\n\n// public methods:\n\t/**\n\t * Adds one or more tweens (or timelines) to this timeline. The tweens will be paused (to remove them from the\n\t * normal ticking system) and managed by this timeline. Adding a tween to multiple timelines will result in\n\t * unexpected behaviour.\n\t * @method addTween\n\t * @param {Tween} ...tween The tween(s) to add. Accepts multiple arguments.\n\t * @return {Tween} The first tween that was passed in.\n\t **/\n\tp.addTween = function(tween) {\n\t\tvar l = arguments.length;\n\t\tif (l > 1) {\n\t\t\tfor (var i=0; i this.duration) { this.duration = tween.duration; }\n\t\tif (this._prevPos >= 0) { tween.setPosition(this._prevPos, createjs.Tween.NONE); }\n\t\treturn tween;\n\t};\n\n\t/**\n\t * Removes one or more tweens from this timeline.\n\t * @method removeTween\n\t * @param {Tween} ...tween The tween(s) to remove. Accepts multiple arguments.\n\t * @return Boolean Returns `true` if all of the tweens were successfully removed.\n\t **/\n\tp.removeTween = function(tween) {\n\t\tvar l = arguments.length;\n\t\tif (l > 1) {\n\t\t\tvar good = true;\n\t\t\tfor (var i=0; i= this.duration) { this.updateDuration(); }\n\t\t\t\treturn true;\n\t\t\t}\n\t\t}\n\t\treturn false;\n\t};\n\n\t/**\n\t * Adds a label that can be used with {{#crossLink \"Timeline/gotoAndPlay\"}}{{/crossLink}}/{{#crossLink \"Timeline/gotoAndStop\"}}{{/crossLink}}.\n\t * @method addLabel\n\t * @param {String} label The label name.\n\t * @param {Number} position The position this label represents.\n\t **/\n\tp.addLabel = function(label, position) {\n\t\tthis._labels[label] = position;\n\t\tvar list = this._labelList;\n\t\tif (list) {\n\t\t\tfor (var i= 0,l=list.length; i\n\t * \t\t- null if the current position is 2.
\n\t * \t\t- \"first\" if the current position is 4.
\n\t * \t\t- \"first\" if the current position is 7.
\n\t * \t\t- \"second\" if the current position is 15.
\n\t *
\n\t * @method getCurrentLabel\n\t * @return {String} The name of the current label or null if there is no label\n\t **/\n\tp.getCurrentLabel = function() {\n\t\tvar labels = this.getLabels();\n\t\tvar pos = this.position;\n\t\tvar l = labels.length;\n\t\tif (l) {\n\t\t\tfor (var i = 0; i= this.duration;\n\t\tif (t == this._prevPos) { return end; }\n\t\tthis._prevPosition = value;\n\t\tthis.position = this._prevPos = t; // in case an action changes the current frame.\n\t\tfor (var i=0, l=this._tweens.length; i this.duration) { this.duration = tween.duration; }\n\t\t}\n\t};\n\n\t/**\n\t * Advances this timeline by the specified amount of time in milliseconds (or ticks if `useTicks` is `true`).\n\t * This is normally called automatically by the Tween engine (via the {{#crossLink \"Tween/tick:event\"}}{{/crossLink}}\n\t * event), but is exposed for advanced uses.\n\t * @method tick\n\t * @param {Number} delta The time to advance in milliseconds (or ticks if useTicks is true).\n\t **/\n\tp.tick = function(delta) {\n\t\tthis.setPosition(this._prevPosition+delta);\n\t};\n\n\t/**\n\t * If a numeric position is passed, it is returned unchanged. If a string is passed, the position of the\n\t * corresponding frame label will be returned, or `null` if a matching label is not defined.\n\t * @method resolve\n\t * @param {String|Number} positionOrLabel A numeric position value or label string.\n\t **/\n\tp.resolve = function(positionOrLabel) {\n\t\tvar pos = Number(positionOrLabel);\n\t\tif (isNaN(pos)) { pos = this._labels[positionOrLabel]; }\n\t\treturn pos;\n\t};\n\n\t/**\n\t* Returns a string representation of this object.\n\t* @method toString\n\t* @return {String} a string representation of the instance.\n\t**/\n\tp.toString = function() {\n\t\treturn \"[Timeline]\";\n\t};\n\n\t/**\n\t * @method clone\n\t * @protected\n\t **/\n\tp.clone = function() {\n\t\tthrow(\"Timeline can not be cloned.\")\n\t};\n\n// private methods:\n\t/**\n\t * @method _goto\n\t * @param {String | Number} positionOrLabel\n\t * @protected\n\t **/\n\tp._goto = function(positionOrLabel) {\n\t\tvar pos = this.resolve(positionOrLabel);\n\t\tif (pos != null) { this.setPosition(pos); }\n\t};\n\t\n\t/**\n\t * @method _calcPosition\n\t * @param {Number} value\n\t * @return {Number}\n\t * @protected\n\t **/\n\tp._calcPosition = function(value) {\n\t\tif (value < 0) { return 0; }\n\t\tif (value < this.duration) { return value; }\n\t\treturn this.loop ? value%this.duration : this.duration;\n\t};\n\n\tcreatejs.Timeline = createjs.promote(Timeline, \"EventDispatcher\");\n\n}());\n\n//##############################################################################\n// Ease.js\n//##############################################################################\n\n(function() {\n\t\"use strict\";\n\n\t/**\n\t * The Ease class provides a collection of easing functions for use with TweenJS. It does not use the standard 4 param\n\t * easing signature. Instead it uses a single param which indicates the current linear ratio (0 to 1) of the tween.\n\t *\n\t * Most methods on Ease can be passed directly as easing functions:\n\t *\n\t * Tween.get(target).to({x:100}, 500, Ease.linear);\n\t *\n\t * However, methods beginning with \"get\" will return an easing function based on parameter values:\n\t *\n\t * Tween.get(target).to({y:200}, 500, Ease.getPowIn(2.2));\n\t *\n\t * Please see the spark table demo for an\n\t * overview of the different ease types on TweenJS.com.\n\t *\n\t * Equations derived from work by Robert Penner.\n\t * @class Ease\n\t * @static\n\t **/\n\tfunction Ease() {\n\t\tthrow \"Ease cannot be instantiated.\";\n\t}\n\n\n// static methods and properties\n\t/**\n\t * @method linear\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.linear = function(t) { return t; };\n\n\t/**\n\t * Identical to linear.\n\t * @method none\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.none = Ease.linear;\n\n\t/**\n\t * Mimics the simple -100 to 100 easing in Flash Pro.\n\t * @method get\n\t * @param {Number} amount A value from -1 (ease in) to 1 (ease out) indicating the strength and direction of the ease.\n\t * @static\n\t * @return {Function}\n\t **/\n\tEase.get = function(amount) {\n\t\tif (amount < -1) { amount = -1; }\n\t\tif (amount > 1) { amount = 1; }\n\t\treturn function(t) {\n\t\t\tif (amount==0) { return t; }\n\t\t\tif (amount<0) { return t*(t*-amount+1+amount); }\n\t\t\treturn t*((2-t)*amount+(1-amount));\n\t\t};\n\t};\n\n\t/**\n\t * Configurable exponential ease.\n\t * @method getPowIn\n\t * @param {Number} pow The exponent to use (ex. 3 would return a cubic ease).\n\t * @static\n\t * @return {Function}\n\t **/\n\tEase.getPowIn = function(pow) {\n\t\treturn function(t) {\n\t\t\treturn Math.pow(t,pow);\n\t\t};\n\t};\n\n\t/**\n\t * Configurable exponential ease.\n\t * @method getPowOut\n\t * @param {Number} pow The exponent to use (ex. 3 would return a cubic ease).\n\t * @static\n\t * @return {Function}\n\t **/\n\tEase.getPowOut = function(pow) {\n\t\treturn function(t) {\n\t\t\treturn 1-Math.pow(1-t,pow);\n\t\t};\n\t};\n\n\t/**\n\t * Configurable exponential ease.\n\t * @method getPowInOut\n\t * @param {Number} pow The exponent to use (ex. 3 would return a cubic ease).\n\t * @static\n\t * @return {Function}\n\t **/\n\tEase.getPowInOut = function(pow) {\n\t\treturn function(t) {\n\t\t\tif ((t*=2)<1) return 0.5*Math.pow(t,pow);\n\t\t\treturn 1-0.5*Math.abs(Math.pow(2-t,pow));\n\t\t};\n\t};\n\n\t/**\n\t * @method quadIn\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.quadIn = Ease.getPowIn(2);\n\t/**\n\t * @method quadOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.quadOut = Ease.getPowOut(2);\n\t/**\n\t * @method quadInOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.quadInOut = Ease.getPowInOut(2);\n\n\t/**\n\t * @method cubicIn\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.cubicIn = Ease.getPowIn(3);\n\t/**\n\t * @method cubicOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.cubicOut = Ease.getPowOut(3);\n\t/**\n\t * @method cubicInOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.cubicInOut = Ease.getPowInOut(3);\n\n\t/**\n\t * @method quartIn\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.quartIn = Ease.getPowIn(4);\n\t/**\n\t * @method quartOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.quartOut = Ease.getPowOut(4);\n\t/**\n\t * @method quartInOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.quartInOut = Ease.getPowInOut(4);\n\n\t/**\n\t * @method quintIn\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.quintIn = Ease.getPowIn(5);\n\t/**\n\t * @method quintOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.quintOut = Ease.getPowOut(5);\n\t/**\n\t * @method quintInOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.quintInOut = Ease.getPowInOut(5);\n\n\t/**\n\t * @method sineIn\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.sineIn = function(t) {\n\t\treturn 1-Math.cos(t*Math.PI/2);\n\t};\n\n\t/**\n\t * @method sineOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.sineOut = function(t) {\n\t\treturn Math.sin(t*Math.PI/2);\n\t};\n\n\t/**\n\t * @method sineInOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.sineInOut = function(t) {\n\t\treturn -0.5*(Math.cos(Math.PI*t) - 1);\n\t};\n\n\t/**\n\t * Configurable \"back in\" ease.\n\t * @method getBackIn\n\t * @param {Number} amount The strength of the ease.\n\t * @static\n\t * @return {Function}\n\t **/\n\tEase.getBackIn = function(amount) {\n\t\treturn function(t) {\n\t\t\treturn t*t*((amount+1)*t-amount);\n\t\t};\n\t};\n\t/**\n\t * @method backIn\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.backIn = Ease.getBackIn(1.7);\n\n\t/**\n\t * Configurable \"back out\" ease.\n\t * @method getBackOut\n\t * @param {Number} amount The strength of the ease.\n\t * @static\n\t * @return {Function}\n\t **/\n\tEase.getBackOut = function(amount) {\n\t\treturn function(t) {\n\t\t\treturn (--t*t*((amount+1)*t + amount) + 1);\n\t\t};\n\t};\n\t/**\n\t * @method backOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.backOut = Ease.getBackOut(1.7);\n\n\t/**\n\t * Configurable \"back in out\" ease.\n\t * @method getBackInOut\n\t * @param {Number} amount The strength of the ease.\n\t * @static\n\t * @return {Function}\n\t **/\n\tEase.getBackInOut = function(amount) {\n\t\tamount*=1.525;\n\t\treturn function(t) {\n\t\t\tif ((t*=2)<1) return 0.5*(t*t*((amount+1)*t-amount));\n\t\t\treturn 0.5*((t-=2)*t*((amount+1)*t+amount)+2);\n\t\t};\n\t};\n\t/**\n\t * @method backInOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.backInOut = Ease.getBackInOut(1.7);\n\n\t/**\n\t * @method circIn\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.circIn = function(t) {\n\t\treturn -(Math.sqrt(1-t*t)- 1);\n\t};\n\n\t/**\n\t * @method circOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.circOut = function(t) {\n\t\treturn Math.sqrt(1-(--t)*t);\n\t};\n\n\t/**\n\t * @method circInOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.circInOut = function(t) {\n\t\tif ((t*=2) < 1) return -0.5*(Math.sqrt(1-t*t)-1);\n\t\treturn 0.5*(Math.sqrt(1-(t-=2)*t)+1);\n\t};\n\n\t/**\n\t * @method bounceIn\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.bounceIn = function(t) {\n\t\treturn 1-Ease.bounceOut(1-t);\n\t};\n\n\t/**\n\t * @method bounceOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.bounceOut = function(t) {\n\t\tif (t < 1/2.75) {\n\t\t\treturn (7.5625*t*t);\n\t\t} else if (t < 2/2.75) {\n\t\t\treturn (7.5625*(t-=1.5/2.75)*t+0.75);\n\t\t} else if (t < 2.5/2.75) {\n\t\t\treturn (7.5625*(t-=2.25/2.75)*t+0.9375);\n\t\t} else {\n\t\t\treturn (7.5625*(t-=2.625/2.75)*t +0.984375);\n\t\t}\n\t};\n\n\t/**\n\t * @method bounceInOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.bounceInOut = function(t) {\n\t\tif (t<0.5) return Ease.bounceIn (t*2) * .5;\n\t\treturn Ease.bounceOut(t*2-1)*0.5+0.5;\n\t};\n\n\t/**\n\t * Configurable elastic ease.\n\t * @method getElasticIn\n\t * @param {Number} amplitude\n\t * @param {Number} period\n\t * @static\n\t * @return {Function}\n\t **/\n\tEase.getElasticIn = function(amplitude,period) {\n\t\tvar pi2 = Math.PI*2;\n\t\treturn function(t) {\n\t\t\tif (t==0 || t==1) return t;\n\t\t\tvar s = period/pi2*Math.asin(1/amplitude);\n\t\t\treturn -(amplitude*Math.pow(2,10*(t-=1))*Math.sin((t-s)*pi2/period));\n\t\t};\n\t};\n\t/**\n\t * @method elasticIn\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.elasticIn = Ease.getElasticIn(1,0.3);\n\n\t/**\n\t * Configurable elastic ease.\n\t * @method getElasticOut\n\t * @param {Number} amplitude\n\t * @param {Number} period\n\t * @static\n\t * @return {Function}\n\t **/\n\tEase.getElasticOut = function(amplitude,period) {\n\t\tvar pi2 = Math.PI*2;\n\t\treturn function(t) {\n\t\t\tif (t==0 || t==1) return t;\n\t\t\tvar s = period/pi2 * Math.asin(1/amplitude);\n\t\t\treturn (amplitude*Math.pow(2,-10*t)*Math.sin((t-s)*pi2/period )+1);\n\t\t};\n\t};\n\t/**\n\t * @method elasticOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.elasticOut = Ease.getElasticOut(1,0.3);\n\n\t/**\n\t * Configurable elastic ease.\n\t * @method getElasticInOut\n\t * @param {Number} amplitude\n\t * @param {Number} period\n\t * @static\n\t * @return {Function}\n\t **/\n\tEase.getElasticInOut = function(amplitude,period) {\n\t\tvar pi2 = Math.PI*2;\n\t\treturn function(t) {\n\t\t\tvar s = period/pi2 * Math.asin(1/amplitude);\n\t\t\tif ((t*=2)<1) return -0.5*(amplitude*Math.pow(2,10*(t-=1))*Math.sin( (t-s)*pi2/period ));\n\t\t\treturn amplitude*Math.pow(2,-10*(t-=1))*Math.sin((t-s)*pi2/period)*0.5+1;\n\t\t};\n\t};\n\t/**\n\t * @method elasticInOut\n\t * @param {Number} t\n\t * @static\n\t * @return {Number}\n\t **/\n\tEase.elasticInOut = Ease.getElasticInOut(1,0.3*1.5);\n\n\tcreatejs.Ease = Ease;\n\n}());\n\n//##############################################################################\n// MotionGuidePlugin.js\n//##############################################################################\n\n(function() {\n\t\"use strict\";\n\n\t/**\n\t * A TweenJS plugin for working with motion guides.\n\t *\n\t * To use, install the plugin after TweenJS has loaded. Next tween the 'guide' property with an object as detailed below.\n\t *\n\t * createjs.MotionGuidePlugin.install();\n\t *\n\t * Example
\n\t *\n\t * // Using a Motion Guide\n\t *\t createjs.Tween.get(target).to({guide:{ path:[0,0, 0,200,200,200, 200,0,0,0] }},7000);\n\t *\t // Visualizing the line\n\t *\t graphics.moveTo(0,0).curveTo(0,200,200,200).curveTo(200,0,0,0);\n\t *\n\t * Each path needs pre-computation to ensure there's fast performance. Because of the pre-computation there's no\n\t * built in support for path changes mid tween. These are the Guide Object's properties:\n\t * - path: Required, Array : The x/y points used to draw the path with a moveTo and 1 to n curveTo calls.
\n\t * - start: Optional, 0-1 : Initial position, default 0 except for when continuing along the same path.
\n\t * - end: Optional, 0-1 : Final position, default 1 if not specified.
\n\t * - orient: Optional, string : \"fixed\"/\"auto\"/\"cw\"/\"ccw\"
\n\t *\t\t\t\t- \"fixed\" forces the object to face down the path all movement (relative to start rotation),
\n\t * \t\t- \"auto\" rotates the object along the path relative to the line.
\n\t * \t\t- \"cw\"/\"ccw\" force clockwise or counter clockwise rotations including flash like behaviour
\n\t * \t\t
\n\t *
\n\t * Guide objects should not be shared between tweens even if all properties are identical, the library stores\n\t * information on these objects in the background and sharing them can cause unexpected behaviour. Values\n\t * outside 0-1 range of tweens will be a \"best guess\" from the appropriate part of the defined curve.\n\t *\n\t * @class MotionGuidePlugin\n\t * @constructor\n\t **/\n\tfunction MotionGuidePlugin() {\n\t\tthrow(\"MotionGuidePlugin cannot be instantiated.\")\n\t};\n\n\n// static properties:\n\t/**\n\t * @property priority\n\t * @protected\n\t * @static\n\t **/\n\tMotionGuidePlugin.priority = 0; // high priority, should run sooner\n\n\t/**\n\t * @property temporary variable storage\n\t * @private\n\t * @static\n\t */\n\tMotionGuidePlugin._rotOffS;\n\t/**\n\t * @property temporary variable storage\n\t * @private\n\t * @static\n\t */\n\tMotionGuidePlugin._rotOffE;\n\t/**\n\t * @property temporary variable storage\n\t * @private\n\t * @static\n\t */\n\tMotionGuidePlugin._rotNormS;\n\t/**\n\t * @property temporary variable storage\n\t * @private\n\t * @static\n\t */\n\tMotionGuidePlugin._rotNormE;\n\n\n// static methods\n\t/**\n\t * Installs this plugin for use with TweenJS. Call this once after TweenJS is loaded to enable this plugin.\n\t * @method install\n\t * @static\n\t **/\n\tMotionGuidePlugin.install = function() {\n\t\tcreatejs.Tween.installPlugin(MotionGuidePlugin, [\"guide\", \"x\", \"y\", \"rotation\"]);\n\t\treturn createjs.Tween.IGNORE;\n\t};\n\n\t/**\n\t * @method init\n\t * @protected\n\t * @static\n\t **/\n\tMotionGuidePlugin.init = function(tween, prop, value) {\n\t\tvar target = tween.target;\n\t\tif(!target.hasOwnProperty(\"x\")){ target.x = 0; }\n\t\tif(!target.hasOwnProperty(\"y\")){ target.y = 0; }\n\t\tif(!target.hasOwnProperty(\"rotation\")){ target.rotation = 0; }\n\n\t\tif(prop==\"rotation\"){ tween.__needsRot = true; }\n\t\treturn prop==\"guide\"?null:value;\n\t};\n\n\t/**\n\t * @method step\n\t * @protected\n\t * @static\n\t **/\n\tMotionGuidePlugin.step = function(tween, prop, startValue, endValue, injectProps) {\n\t\t// other props\n\t\tif(prop == \"rotation\"){\n\t\t\ttween.__rotGlobalS = startValue;\n\t\t\ttween.__rotGlobalE = endValue;\n\t\t\tMotionGuidePlugin.testRotData(tween, injectProps);\n\t\t}\n\t\tif(prop != \"guide\"){ return endValue; }\n\n\t\t// guide only information - Start -\n\t\tvar temp, data = endValue;\n\t\tif(!data.hasOwnProperty(\"path\")){ data.path = []; }\n\t\tvar path = data.path;\n\t\tif(!data.hasOwnProperty(\"end\")){ data.end = 1; }\n\t\tif(!data.hasOwnProperty(\"start\")){\n\t\t\tdata.start = (startValue&&startValue.hasOwnProperty(\"end\")&&startValue.path===path)?startValue.end:0;\n\t\t}\n\n\t\t// Figure out subline information\n\t\tif(data.hasOwnProperty(\"_segments\") && data._length){ return endValue; }\n\t\tvar l = path.length;\n\t\tvar accuracy = 10;\t\t// Adjust to improve line following precision but sacrifice performance (# of seg)\n\t\tif(l >= 6 && (l-2) % 4 == 0){\t// Enough points && contains correct number per entry ignoring start\n\t\t\tdata._segments = [];\n\t\t\tdata._length = 0;\n\t\t\tfor(var i=2; i 180){\t\t\trot -= 360; }\n\t\t\telse if(rot < -180){\trot += 360; }\n\n\t\t} else if(data.orient == \"cw\"){\n\t\t\twhile(rot < 0){ rot += 360; }\n\t\t\tif(rot == 0 && rotGlobalD > 0 && rotGlobalD != 180){ rot += 360; }\n\n\t\t} else if(data.orient == \"ccw\"){\n\t\t\trot = rotGlobalD - ((rotPathD > 180)?(360-rotPathD):(rotPathD));\t// sign flipping on path\n\t\t\twhile(rot > 0){ rot -= 360; }\n\t\t\tif(rot == 0 && rotGlobalD < 0 && rotGlobalD != -180){ rot -= 360; }\n\t\t}\n\n\t\tdata.rotDelta = rot;\n\t\tdata.rotOffS = tween.__rotGlobalS - tween.__rotPathS;\n\n\t\t// reset\n\t\ttween.__rotGlobalS = tween.__rotGlobalE = tween.__guideData = tween.__needsRot = undefined;\n\t};\n\n\t/**\n\t * @method tween\n\t * @protected\n\t * @static\n\t **/\n\tMotionGuidePlugin.tween = function(tween, prop, value, startValues, endValues, ratio, wait, end) {\n\t\tvar data = endValues.guide;\n\t\tif(data == undefined || data === startValues.guide){ return value; }\n\t\tif(data.lastRatio != ratio){\n\t\t\t// first time through so calculate what I need to\n\t\t\tvar t = ((data.end-data.start)*(wait?data.end:ratio)+data.start);\n\t\t\tMotionGuidePlugin.calc(data, t, tween.target);\n\t\t\tswitch(data.orient){\n\t\t\t\tcase \"cw\":\t\t// mix in the original rotation\n\t\t\t\tcase \"ccw\":\n\t\t\t\tcase \"auto\": tween.target.rotation += data.rotOffS + data.rotDelta*ratio; break;\n\t\t\t\tcase \"fixed\":\t// follow fixed behaviour to solve potential issues\n\t\t\t\tdefault: tween.target.rotation += data.rotOffS; break;\n\t\t\t}\n\t\t\tdata.lastRatio = ratio;\n\t\t}\n\t\tif(prop == \"rotation\" && ((!data.orient) || data.orient == \"false\")){ return value; }\n\t\treturn tween.target[prop];\n\t};\n\n\t/**\n\t * Determine the appropriate x/y/rotation information about a path for a given ratio along the path.\n\t * Assumes a path object with all optional parameters specified.\n\t * @param data Data object you would pass to the \"guide:\" property in a Tween\n\t * @param ratio 0-1 Distance along path, values outside 0-1 are \"best guess\"\n\t * @param target Object to copy the results onto, will use a new object if not supplied.\n\t * @return {Object} The target object or a new object w/ the tweened properties\n\t * @static\n\t */\n\tMotionGuidePlugin.calc = function(data, ratio, target) {\n\t\tif(data._segments == undefined){ throw(\"Missing critical pre-calculated information, please file a bug\"); }\n\t\tif(target == undefined){ target = {x:0, y:0, rotation:0}; }\n\t\tvar seg = data._segments;\n\t\tvar path = data.path;\n\n\t\t// find segment\n\t\tvar pos = data._length * ratio;\n\t\tvar cap = seg.length - 2;\n\t\tvar n = 0;\n\t\twhile(pos > seg[n] && n < cap){\n\t\t\tpos -= seg[n];\n\t\t\tn+=2;\n\t\t}\n\n\t\t// find subline\n\t\tvar sublines = seg[n+1];\n\t\tvar i = 0;\n\t\tcap = sublines.length-1;\n\t\twhile(pos > sublines[i] && i < cap){\n\t\t\tpos -= sublines[i];\n\t\t\ti++;\n\t\t}\n\t\tvar t = (i/++cap)+(pos/(cap*sublines[i]));\n\n\t\t// find x/y\n\t\tn = (n*2)+2;\n\t\tvar inv = 1 - t;\n\t\ttarget.x = inv*inv * path[n-2] + 2 * inv * t * path[n+0] + t*t * path[n+2];\n\t\ttarget.y = inv*inv * path[n-1] + 2 * inv * t * path[n+1] + t*t * path[n+3];\n\n\t\t// orientation\n\t\tif(data.orient){\n\t\t\ttarget.rotation = 57.2957795 * Math.atan2(\n\t\t\t\t(path[n+1]-path[n-1])*inv + (path[n+3]-path[n+1])*t,\n\t\t\t\t(path[n+0]-path[n-2])*inv + (path[n+2]-path[n+0])*t);\n\t\t}\n\n\t\treturn target;\n\t};\n\n\tcreatejs.MotionGuidePlugin = MotionGuidePlugin;\n\n}());\n\n//##############################################################################\n// version.js\n//##############################################################################\n\n(function() {\n\t\"use strict\";\n\n\t/**\n\t * Static class holding library specific information such as the version and buildDate of\n\t * the library.\n\t * @class TweenJS\n\t **/\n\tvar s = createjs.TweenJS = createjs.TweenJS || {};\n\n\t/**\n\t * The version string for this release.\n\t * @property version\n\t * @type String\n\t * @static\n\t **/\n\ts.version = /*=version*/\"0.6.2\"; // injected by build process\n\n\t/**\n\t * The build date for this release in UTC format.\n\t * @property buildDate\n\t * @type String\n\t * @static\n\t **/\n\ts.buildDate = /*=date*/\"Thu, 26 Nov 2015 20:44:31 GMT\"; // injected by build process\n\n})();\nif(typeof module !== \"undefined\" && typeof module.exports !== \"undefined\") module.exports = this.createjs;","export default function _extends() {\n _extends = Object.assign ? Object.assign.bind() : function (target) {\n for (var i = 1; i < arguments.length; i++) {\n var source = arguments[i];\n for (var key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n return target;\n };\n return _extends.apply(this, arguments);\n}","import objectWithoutPropertiesLoose from \"./objectWithoutPropertiesLoose.js\";\nexport default function _objectWithoutProperties(source, excluded) {\n if (source == null) return {};\n var target = objectWithoutPropertiesLoose(source, excluded);\n var key, i;\n\n if (Object.getOwnPropertySymbols) {\n var sourceSymbolKeys = Object.getOwnPropertySymbols(source);\n\n for (i = 0; i < sourceSymbolKeys.length; i++) {\n key = sourceSymbolKeys[i];\n if (excluded.indexOf(key) >= 0) continue;\n if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue;\n target[key] = source[key];\n }\n }\n\n return target;\n}","import { unstable_useForkRef as useForkRef } from '@mui/utils';\nexport default useForkRef;","import * as React from 'react';\nimport setRef from './setRef';\nexport default function useForkRef(...refs) {\n /**\n * This will create a new function if the refs passed to this hook change and are all defined.\n * This means react will call the old forkRef with `null` and the new forkRef\n * with the ref. Cleanup naturally emerges from this behavior.\n */\n return React.useMemo(() => {\n if (refs.every(ref => ref == null)) {\n return null;\n }\n\n return instance => {\n refs.forEach(ref => {\n setRef(ref, instance);\n });\n }; // eslint-disable-next-line react-hooks/exhaustive-deps\n }, refs);\n}","import setPrototypeOf from \"@babel/runtime/helpers/esm/setPrototypeOf\";\nexport default function _inherits(subClass, superClass) {\n if (typeof superClass !== \"function\" && superClass !== null) {\n throw new TypeError(\"Super expression must either be null or a function\");\n }\n\n subClass.prototype = Object.create(superClass && superClass.prototype, {\n constructor: {\n value: subClass,\n writable: true,\n configurable: true\n }\n });\n if (superClass) setPrototypeOf(subClass, superClass);\n}","export default function _typeof(obj) {\n \"@babel/helpers - typeof\";\n\n if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") {\n _typeof = function _typeof(obj) {\n return typeof obj;\n };\n } else {\n _typeof = function _typeof(obj) {\n return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj;\n };\n }\n\n return _typeof(obj);\n}","import _typeof from \"@babel/runtime/helpers/esm/typeof\";\nimport assertThisInitialized from \"@babel/runtime/helpers/esm/assertThisInitialized\";\nexport default function _possibleConstructorReturn(self, call) {\n if (call && (_typeof(call) === \"object\" || typeof call === \"function\")) {\n return call;\n }\n\n return assertThisInitialized(self);\n}","import getPrototypeOf from \"@babel/runtime/helpers/esm/getPrototypeOf\";\nimport isNativeReflectConstruct from \"@babel/runtime/helpers/esm/isNativeReflectConstruct\";\nimport possibleConstructorReturn from \"@babel/runtime/helpers/esm/possibleConstructorReturn\";\nexport default function _createSuper(Derived) {\n var hasNativeReflectConstruct = isNativeReflectConstruct();\n return function _createSuperInternal() {\n var Super = getPrototypeOf(Derived),\n result;\n\n if (hasNativeReflectConstruct) {\n var NewTarget = getPrototypeOf(this).constructor;\n result = Reflect.construct(Super, arguments, NewTarget);\n } else {\n result = Super.apply(this, arguments);\n }\n\n return possibleConstructorReturn(this, result);\n };\n}","// Licensed to the .NET Foundation under one or more agreements.\r\n// The .NET Foundation licenses this file to you under the MIT license.\r\n\r\n// This will be treated as a bit flag in the future, so we keep it using power-of-two values.\r\n/** Specifies a specific HTTP transport type. */\r\nexport enum HttpTransportType {\r\n /** Specifies no transport preference. */\r\n None = 0,\r\n /** Specifies the WebSockets transport. */\r\n WebSockets = 1,\r\n /** Specifies the Server-Sent Events transport. */\r\n ServerSentEvents = 2,\r\n /** Specifies the Long Polling transport. */\r\n LongPolling = 4,\r\n}\r\n\r\n/** Specifies the transfer format for a connection. */\r\nexport enum TransferFormat {\r\n /** Specifies that only text data will be transmitted over the connection. */\r\n Text = 1,\r\n /** Specifies that binary data will be transmitted over the connection. */\r\n Binary = 2,\r\n}\r\n\r\n/** An abstraction over the behavior of transports. This is designed to support the framework and not intended for use by applications. */\r\nexport interface ITransport {\r\n connect(url: string, transferFormat: TransferFormat): Promise;\r\n send(data: any): Promise;\r\n stop(): Promise;\r\n onreceive: ((data: string | ArrayBuffer) => void) | null;\r\n onclose: ((error?: Error) => void) | null;\r\n}\r\n","\"use strict\";\n\nObject.defineProperty(exports, \"__esModule\", {\n value: true\n});\nexports.default = toInteger;\n\nfunction toInteger(dirtyNumber) {\n if (dirtyNumber === null || dirtyNumber === true || dirtyNumber === false) {\n return NaN;\n }\n\n var number = Number(dirtyNumber);\n\n if (isNaN(number)) {\n return number;\n }\n\n return number < 0 ? Math.ceil(number) : Math.floor(number);\n}\n\nmodule.exports = exports.default;","import getWindow from \"./getWindow.js\";\n\nfunction isElement(node) {\n var OwnElement = getWindow(node).Element;\n return node instanceof OwnElement || node instanceof Element;\n}\n\nfunction isHTMLElement(node) {\n var OwnElement = getWindow(node).HTMLElement;\n return node instanceof OwnElement || node instanceof HTMLElement;\n}\n\nfunction isShadowRoot(node) {\n // IE 11 has no ShadowRoot\n if (typeof ShadowRoot === 'undefined') {\n return false;\n }\n\n var OwnElement = getWindow(node).ShadowRoot;\n return node instanceof OwnElement || node instanceof ShadowRoot;\n}\n\nexport { isElement, isHTMLElement, isShadowRoot };","export default function _extends() {\n _extends = Object.assign ? Object.assign.bind() : function (target) {\n for (var i = 1; i < arguments.length; i++) {\n var source = arguments[i];\n for (var key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n return target;\n };\n return _extends.apply(this, arguments);\n}","export default function _extends() {\n _extends = Object.assign ? Object.assign.bind() : function (target) {\n for (var i = 1; i < arguments.length; i++) {\n var source = arguments[i];\n for (var key in source) {\n if (Object.prototype.hasOwnProperty.call(source, key)) {\n target[key] = source[key];\n }\n }\n }\n return target;\n };\n return _extends.apply(this, arguments);\n}","//! moment.js\n//! version : 2.29.1\n//! authors : Tim Wood, Iskren Chernev, Moment.js contributors\n//! license : MIT\n//! momentjs.com\n\n;(function (global, factory) {\n typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :\n typeof define === 'function' && define.amd ? define(factory) :\n global.moment = factory()\n}(this, (function () { 'use strict';\n\n var hookCallback;\n\n function hooks() {\n return hookCallback.apply(null, arguments);\n }\n\n // This is done to register the method called with moment()\n // without creating circular dependencies.\n function setHookCallback(callback) {\n hookCallback = callback;\n }\n\n function isArray(input) {\n return (\n input instanceof Array ||\n Object.prototype.toString.call(input) === '[object Array]'\n );\n }\n\n function isObject(input) {\n // IE8 will treat undefined and null as object if it wasn't for\n // input != null\n return (\n input != null &&\n Object.prototype.toString.call(input) === '[object Object]'\n );\n }\n\n function hasOwnProp(a, b) {\n return Object.prototype.hasOwnProperty.call(a, b);\n }\n\n function isObjectEmpty(obj) {\n if (Object.getOwnPropertyNames) {\n return Object.getOwnPropertyNames(obj).length === 0;\n } else {\n var k;\n for (k in obj) {\n if (hasOwnProp(obj, k)) {\n return false;\n }\n }\n return true;\n }\n }\n\n function isUndefined(input) {\n return input === void 0;\n }\n\n function isNumber(input) {\n return (\n typeof input === 'number' ||\n Object.prototype.toString.call(input) === '[object Number]'\n );\n }\n\n function isDate(input) {\n return (\n input instanceof Date ||\n Object.prototype.toString.call(input) === '[object Date]'\n );\n }\n\n function map(arr, fn) {\n var res = [],\n i;\n for (i = 0; i < arr.length; ++i) {\n res.push(fn(arr[i], i));\n }\n return res;\n }\n\n function extend(a, b) {\n for (var i in b) {\n if (hasOwnProp(b, i)) {\n a[i] = b[i];\n }\n }\n\n if (hasOwnProp(b, 'toString')) {\n a.toString = b.toString;\n }\n\n if (hasOwnProp(b, 'valueOf')) {\n a.valueOf = b.valueOf;\n }\n\n return a;\n }\n\n function createUTC(input, format, locale, strict) {\n return createLocalOrUTC(input, format, locale, strict, true).utc();\n }\n\n function defaultParsingFlags() {\n // We need to deep clone this object.\n return {\n empty: false,\n unusedTokens: [],\n unusedInput: [],\n overflow: -2,\n charsLeftOver: 0,\n nullInput: false,\n invalidEra: null,\n invalidMonth: null,\n invalidFormat: false,\n userInvalidated: false,\n iso: false,\n parsedDateParts: [],\n era: null,\n meridiem: null,\n rfc2822: false,\n weekdayMismatch: false,\n };\n }\n\n function getParsingFlags(m) {\n if (m._pf == null) {\n m._pf = defaultParsingFlags();\n }\n return m._pf;\n }\n\n var some;\n if (Array.prototype.some) {\n some = Array.prototype.some;\n } else {\n some = function (fun) {\n var t = Object(this),\n len = t.length >>> 0,\n i;\n\n for (i = 0; i < len; i++) {\n if (i in t && fun.call(this, t[i], i, t)) {\n return true;\n }\n }\n\n return false;\n };\n }\n\n function isValid(m) {\n if (m._isValid == null) {\n var flags = getParsingFlags(m),\n parsedParts = some.call(flags.parsedDateParts, function (i) {\n return i != null;\n }),\n isNowValid =\n !isNaN(m._d.getTime()) &&\n flags.overflow < 0 &&\n !flags.empty &&\n !flags.invalidEra &&\n !flags.invalidMonth &&\n !flags.invalidWeekday &&\n !flags.weekdayMismatch &&\n !flags.nullInput &&\n !flags.invalidFormat &&\n !flags.userInvalidated &&\n (!flags.meridiem || (flags.meridiem && parsedParts));\n\n if (m._strict) {\n isNowValid =\n isNowValid &&\n flags.charsLeftOver === 0 &&\n flags.unusedTokens.length === 0 &&\n flags.bigHour === undefined;\n }\n\n if (Object.isFrozen == null || !Object.isFrozen(m)) {\n m._isValid = isNowValid;\n } else {\n return isNowValid;\n }\n }\n return m._isValid;\n }\n\n function createInvalid(flags) {\n var m = createUTC(NaN);\n if (flags != null) {\n extend(getParsingFlags(m), flags);\n } else {\n getParsingFlags(m).userInvalidated = true;\n }\n\n return m;\n }\n\n // Plugins that add properties should also add the key here (null value),\n // so we can properly clone ourselves.\n var momentProperties = (hooks.momentProperties = []),\n updateInProgress = false;\n\n function copyConfig(to, from) {\n var i, prop, val;\n\n if (!isUndefined(from._isAMomentObject)) {\n to._isAMomentObject = from._isAMomentObject;\n }\n if (!isUndefined(from._i)) {\n to._i = from._i;\n }\n if (!isUndefined(from._f)) {\n to._f = from._f;\n }\n if (!isUndefined(from._l)) {\n to._l = from._l;\n }\n if (!isUndefined(from._strict)) {\n to._strict = from._strict;\n }\n if (!isUndefined(from._tzm)) {\n to._tzm = from._tzm;\n }\n if (!isUndefined(from._isUTC)) {\n to._isUTC = from._isUTC;\n }\n if (!isUndefined(from._offset)) {\n to._offset = from._offset;\n }\n if (!isUndefined(from._pf)) {\n to._pf = getParsingFlags(from);\n }\n if (!isUndefined(from._locale)) {\n to._locale = from._locale;\n }\n\n if (momentProperties.length > 0) {\n for (i = 0; i < momentProperties.length; i++) {\n prop = momentProperties[i];\n val = from[prop];\n if (!isUndefined(val)) {\n to[prop] = val;\n }\n }\n }\n\n return to;\n }\n\n // Moment prototype object\n function Moment(config) {\n copyConfig(this, config);\n this._d = new Date(config._d != null ? config._d.getTime() : NaN);\n if (!this.isValid()) {\n this._d = new Date(NaN);\n }\n // Prevent infinite loop in case updateOffset creates new moment\n // objects.\n if (updateInProgress === false) {\n updateInProgress = true;\n hooks.updateOffset(this);\n updateInProgress = false;\n }\n }\n\n function isMoment(obj) {\n return (\n obj instanceof Moment || (obj != null && obj._isAMomentObject != null)\n );\n }\n\n function warn(msg) {\n if (\n hooks.suppressDeprecationWarnings === false &&\n typeof console !== 'undefined' &&\n console.warn\n ) {\n console.warn('Deprecation warning: ' + msg);\n }\n }\n\n function deprecate(msg, fn) {\n var firstTime = true;\n\n return extend(function () {\n if (hooks.deprecationHandler != null) {\n hooks.deprecationHandler(null, msg);\n }\n if (firstTime) {\n var args = [],\n arg,\n i,\n key;\n for (i = 0; i < arguments.length; i++) {\n arg = '';\n if (typeof arguments[i] === 'object') {\n arg += '\\n[' + i + '] ';\n for (key in arguments[0]) {\n if (hasOwnProp(arguments[0], key)) {\n arg += key + ': ' + arguments[0][key] + ', ';\n }\n }\n arg = arg.slice(0, -2); // Remove trailing comma and space\n } else {\n arg = arguments[i];\n }\n args.push(arg);\n }\n warn(\n msg +\n '\\nArguments: ' +\n Array.prototype.slice.call(args).join('') +\n '\\n' +\n new Error().stack\n );\n firstTime = false;\n }\n return fn.apply(this, arguments);\n }, fn);\n }\n\n var deprecations = {};\n\n function deprecateSimple(name, msg) {\n if (hooks.deprecationHandler != null) {\n hooks.deprecationHandler(name, msg);\n }\n if (!deprecations[name]) {\n warn(msg);\n deprecations[name] = true;\n }\n }\n\n hooks.suppressDeprecationWarnings = false;\n hooks.deprecationHandler = null;\n\n function isFunction(input) {\n return (\n (typeof Function !== 'undefined' && input instanceof Function) ||\n Object.prototype.toString.call(input) === '[object Function]'\n );\n }\n\n function set(config) {\n var prop, i;\n for (i in config) {\n if (hasOwnProp(config, i)) {\n prop = config[i];\n if (isFunction(prop)) {\n this[i] = prop;\n } else {\n this['_' + i] = prop;\n }\n }\n }\n this._config = config;\n // Lenient ordinal parsing accepts just a number in addition to\n // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.\n // TODO: Remove \"ordinalParse\" fallback in next major release.\n this._dayOfMonthOrdinalParseLenient = new RegExp(\n (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +\n '|' +\n /\\d{1,2}/.source\n );\n }\n\n function mergeConfigs(parentConfig, childConfig) {\n var res = extend({}, parentConfig),\n prop;\n for (prop in childConfig) {\n if (hasOwnProp(childConfig, prop)) {\n if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {\n res[prop] = {};\n extend(res[prop], parentConfig[prop]);\n extend(res[prop], childConfig[prop]);\n } else if (childConfig[prop] != null) {\n res[prop] = childConfig[prop];\n } else {\n delete res[prop];\n }\n }\n }\n for (prop in parentConfig) {\n if (\n hasOwnProp(parentConfig, prop) &&\n !hasOwnProp(childConfig, prop) &&\n isObject(parentConfig[prop])\n ) {\n // make sure changes to properties don't modify parent config\n res[prop] = extend({}, res[prop]);\n }\n }\n return res;\n }\n\n function Locale(config) {\n if (config != null) {\n this.set(config);\n }\n }\n\n var keys;\n\n if (Object.keys) {\n keys = Object.keys;\n } else {\n keys = function (obj) {\n var i,\n res = [];\n for (i in obj) {\n if (hasOwnProp(obj, i)) {\n res.push(i);\n }\n }\n return res;\n };\n }\n\n var defaultCalendar = {\n sameDay: '[Today at] LT',\n nextDay: '[Tomorrow at] LT',\n nextWeek: 'dddd [at] LT',\n lastDay: '[Yesterday at] LT',\n lastWeek: '[Last] dddd [at] LT',\n sameElse: 'L',\n };\n\n function calendar(key, mom, now) {\n var output = this._calendar[key] || this._calendar['sameElse'];\n return isFunction(output) ? output.call(mom, now) : output;\n }\n\n function zeroFill(number, targetLength, forceSign) {\n var absNumber = '' + Math.abs(number),\n zerosToFill = targetLength - absNumber.length,\n sign = number >= 0;\n return (\n (sign ? (forceSign ? '+' : '') : '-') +\n Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) +\n absNumber\n );\n }\n\n var formattingTokens = /(\\[[^\\[]*\\])|(\\\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|N{1,5}|YYYYYY|YYYYY|YYYY|YY|y{2,4}|yo?|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g,\n localFormattingTokens = /(\\[[^\\[]*\\])|(\\\\)?(LTS|LT|LL?L?L?|l{1,4})/g,\n formatFunctions = {},\n formatTokenFunctions = {};\n\n // token: 'M'\n // padded: ['MM', 2]\n // ordinal: 'Mo'\n // callback: function () { this.month() + 1 }\n function addFormatToken(token, padded, ordinal, callback) {\n var func = callback;\n if (typeof callback === 'string') {\n func = function () {\n return this[callback]();\n };\n }\n if (token) {\n formatTokenFunctions[token] = func;\n }\n if (padded) {\n formatTokenFunctions[padded[0]] = function () {\n return zeroFill(func.apply(this, arguments), padded[1], padded[2]);\n };\n }\n if (ordinal) {\n formatTokenFunctions[ordinal] = function () {\n return this.localeData().ordinal(\n func.apply(this, arguments),\n token\n );\n };\n }\n }\n\n function removeFormattingTokens(input) {\n if (input.match(/\\[[\\s\\S]/)) {\n return input.replace(/^\\[|\\]$/g, '');\n }\n return input.replace(/\\\\/g, '');\n }\n\n function makeFormatFunction(format) {\n var array = format.match(formattingTokens),\n i,\n length;\n\n for (i = 0, length = array.length; i < length; i++) {\n if (formatTokenFunctions[array[i]]) {\n array[i] = formatTokenFunctions[array[i]];\n } else {\n array[i] = removeFormattingTokens(array[i]);\n }\n }\n\n return function (mom) {\n var output = '',\n i;\n for (i = 0; i < length; i++) {\n output += isFunction(array[i])\n ? array[i].call(mom, format)\n : array[i];\n }\n return output;\n };\n }\n\n // format date using native date object\n function formatMoment(m, format) {\n if (!m.isValid()) {\n return m.localeData().invalidDate();\n }\n\n format = expandFormat(format, m.localeData());\n formatFunctions[format] =\n formatFunctions[format] || makeFormatFunction(format);\n\n return formatFunctions[format](m);\n }\n\n function expandFormat(format, locale) {\n var i = 5;\n\n function replaceLongDateFormatTokens(input) {\n return locale.longDateFormat(input) || input;\n }\n\n localFormattingTokens.lastIndex = 0;\n while (i >= 0 && localFormattingTokens.test(format)) {\n format = format.replace(\n localFormattingTokens,\n replaceLongDateFormatTokens\n );\n localFormattingTokens.lastIndex = 0;\n i -= 1;\n }\n\n return format;\n }\n\n var defaultLongDateFormat = {\n LTS: 'h:mm:ss A',\n LT: 'h:mm A',\n L: 'MM/DD/YYYY',\n LL: 'MMMM D, YYYY',\n LLL: 'MMMM D, YYYY h:mm A',\n LLLL: 'dddd, MMMM D, YYYY h:mm A',\n };\n\n function longDateFormat(key) {\n var format = this._longDateFormat[key],\n formatUpper = this._longDateFormat[key.toUpperCase()];\n\n if (format || !formatUpper) {\n return format;\n }\n\n this._longDateFormat[key] = formatUpper\n .match(formattingTokens)\n .map(function (tok) {\n if (\n tok === 'MMMM' ||\n tok === 'MM' ||\n tok === 'DD' ||\n tok === 'dddd'\n ) {\n return tok.slice(1);\n }\n return tok;\n })\n .join('');\n\n return this._longDateFormat[key];\n }\n\n var defaultInvalidDate = 'Invalid date';\n\n function invalidDate() {\n return this._invalidDate;\n }\n\n var defaultOrdinal = '%d',\n defaultDayOfMonthOrdinalParse = /\\d{1,2}/;\n\n function ordinal(number) {\n return this._ordinal.replace('%d', number);\n }\n\n var defaultRelativeTime = {\n future: 'in %s',\n past: '%s ago',\n s: 'a few seconds',\n ss: '%d seconds',\n m: 'a minute',\n mm: '%d minutes',\n h: 'an hour',\n hh: '%d hours',\n d: 'a day',\n dd: '%d days',\n w: 'a week',\n ww: '%d weeks',\n M: 'a month',\n MM: '%d months',\n y: 'a year',\n yy: '%d years',\n };\n\n function relativeTime(number, withoutSuffix, string, isFuture) {\n var output = this._relativeTime[string];\n return isFunction(output)\n ? output(number, withoutSuffix, string, isFuture)\n : output.replace(/%d/i, number);\n }\n\n function pastFuture(diff, output) {\n var format = this._relativeTime[diff > 0 ? 'future' : 'past'];\n return isFunction(format) ? format(output) : format.replace(/%s/i, output);\n }\n\n var aliases = {};\n\n function addUnitAlias(unit, shorthand) {\n var lowerCase = unit.toLowerCase();\n aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;\n }\n\n function normalizeUnits(units) {\n return typeof units === 'string'\n ? aliases[units] || aliases[units.toLowerCase()]\n : undefined;\n }\n\n function normalizeObjectUnits(inputObject) {\n var normalizedInput = {},\n normalizedProp,\n prop;\n\n for (prop in inputObject) {\n if (hasOwnProp(inputObject, prop)) {\n normalizedProp = normalizeUnits(prop);\n if (normalizedProp) {\n normalizedInput[normalizedProp] = inputObject[prop];\n }\n }\n }\n\n return normalizedInput;\n }\n\n var priorities = {};\n\n function addUnitPriority(unit, priority) {\n priorities[unit] = priority;\n }\n\n function getPrioritizedUnits(unitsObj) {\n var units = [],\n u;\n for (u in unitsObj) {\n if (hasOwnProp(unitsObj, u)) {\n units.push({ unit: u, priority: priorities[u] });\n }\n }\n units.sort(function (a, b) {\n return a.priority - b.priority;\n });\n return units;\n }\n\n function isLeapYear(year) {\n return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;\n }\n\n function absFloor(number) {\n if (number < 0) {\n // -0 -> 0\n return Math.ceil(number) || 0;\n } else {\n return Math.floor(number);\n }\n }\n\n function toInt(argumentForCoercion) {\n var coercedNumber = +argumentForCoercion,\n value = 0;\n\n if (coercedNumber !== 0 && isFinite(coercedNumber)) {\n value = absFloor(coercedNumber);\n }\n\n return value;\n }\n\n function makeGetSet(unit, keepTime) {\n return function (value) {\n if (value != null) {\n set$1(this, unit, value);\n hooks.updateOffset(this, keepTime);\n return this;\n } else {\n return get(this, unit);\n }\n };\n }\n\n function get(mom, unit) {\n return mom.isValid()\n ? mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]()\n : NaN;\n }\n\n function set$1(mom, unit, value) {\n if (mom.isValid() && !isNaN(value)) {\n if (\n unit === 'FullYear' &&\n isLeapYear(mom.year()) &&\n mom.month() === 1 &&\n mom.date() === 29\n ) {\n value = toInt(value);\n mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](\n value,\n mom.month(),\n daysInMonth(value, mom.month())\n );\n } else {\n mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);\n }\n }\n }\n\n // MOMENTS\n\n function stringGet(units) {\n units = normalizeUnits(units);\n if (isFunction(this[units])) {\n return this[units]();\n }\n return this;\n }\n\n function stringSet(units, value) {\n if (typeof units === 'object') {\n units = normalizeObjectUnits(units);\n var prioritized = getPrioritizedUnits(units),\n i;\n for (i = 0; i < prioritized.length; i++) {\n this[prioritized[i].unit](units[prioritized[i].unit]);\n }\n } else {\n units = normalizeUnits(units);\n if (isFunction(this[units])) {\n return this[units](value);\n }\n }\n return this;\n }\n\n var match1 = /\\d/, // 0 - 9\n match2 = /\\d\\d/, // 00 - 99\n match3 = /\\d{3}/, // 000 - 999\n match4 = /\\d{4}/, // 0000 - 9999\n match6 = /[+-]?\\d{6}/, // -999999 - 999999\n match1to2 = /\\d\\d?/, // 0 - 99\n match3to4 = /\\d\\d\\d\\d?/, // 999 - 9999\n match5to6 = /\\d\\d\\d\\d\\d\\d?/, // 99999 - 999999\n match1to3 = /\\d{1,3}/, // 0 - 999\n match1to4 = /\\d{1,4}/, // 0 - 9999\n match1to6 = /[+-]?\\d{1,6}/, // -999999 - 999999\n matchUnsigned = /\\d+/, // 0 - inf\n matchSigned = /[+-]?\\d+/, // -inf - inf\n matchOffset = /Z|[+-]\\d\\d:?\\d\\d/gi, // +00:00 -00:00 +0000 -0000 or Z\n matchShortOffset = /Z|[+-]\\d\\d(?::?\\d\\d)?/gi, // +00 -00 +00:00 -00:00 +0000 -0000 or Z\n matchTimestamp = /[+-]?\\d+(\\.\\d{1,3})?/, // 123456789 123456789.123\n // any word (or two) characters or numbers including two/three word month in arabic.\n // includes scottish gaelic two word and hyphenated months\n matchWord = /[0-9]{0,256}['a-z\\u00A0-\\u05FF\\u0700-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFF07\\uFF10-\\uFFEF]{1,256}|[\\u0600-\\u06FF\\/]{1,256}(\\s*?[\\u0600-\\u06FF]{1,256}){1,2}/i,\n regexes;\n\n regexes = {};\n\n function addRegexToken(token, regex, strictRegex) {\n regexes[token] = isFunction(regex)\n ? regex\n : function (isStrict, localeData) {\n return isStrict && strictRegex ? strictRegex : regex;\n };\n }\n\n function getParseRegexForToken(token, config) {\n if (!hasOwnProp(regexes, token)) {\n return new RegExp(unescapeFormat(token));\n }\n\n return regexes[token](config._strict, config._locale);\n }\n\n // Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript\n function unescapeFormat(s) {\n return regexEscape(\n s\n .replace('\\\\', '')\n .replace(/\\\\(\\[)|\\\\(\\])|\\[([^\\]\\[]*)\\]|\\\\(.)/g, function (\n matched,\n p1,\n p2,\n p3,\n p4\n ) {\n return p1 || p2 || p3 || p4;\n })\n );\n }\n\n function regexEscape(s) {\n return s.replace(/[-\\/\\\\^$*+?.()|[\\]{}]/g, '\\\\$&');\n }\n\n var tokens = {};\n\n function addParseToken(token, callback) {\n var i,\n func = callback;\n if (typeof token === 'string') {\n token = [token];\n }\n if (isNumber(callback)) {\n func = function (input, array) {\n array[callback] = toInt(input);\n };\n }\n for (i = 0; i < token.length; i++) {\n tokens[token[i]] = func;\n }\n }\n\n function addWeekParseToken(token, callback) {\n addParseToken(token, function (input, array, config, token) {\n config._w = config._w || {};\n callback(input, config._w, config, token);\n });\n }\n\n function addTimeToArrayFromToken(token, input, config) {\n if (input != null && hasOwnProp(tokens, token)) {\n tokens[token](input, config._a, config, token);\n }\n }\n\n var YEAR = 0,\n MONTH = 1,\n DATE = 2,\n HOUR = 3,\n MINUTE = 4,\n SECOND = 5,\n MILLISECOND = 6,\n WEEK = 7,\n WEEKDAY = 8;\n\n function mod(n, x) {\n return ((n % x) + x) % x;\n }\n\n var indexOf;\n\n if (Array.prototype.indexOf) {\n indexOf = Array.prototype.indexOf;\n } else {\n indexOf = function (o) {\n // I know\n var i;\n for (i = 0; i < this.length; ++i) {\n if (this[i] === o) {\n return i;\n }\n }\n return -1;\n };\n }\n\n function daysInMonth(year, month) {\n if (isNaN(year) || isNaN(month)) {\n return NaN;\n }\n var modMonth = mod(month, 12);\n year += (month - modMonth) / 12;\n return modMonth === 1\n ? isLeapYear(year)\n ? 29\n : 28\n : 31 - ((modMonth % 7) % 2);\n }\n\n // FORMATTING\n\n addFormatToken('M', ['MM', 2], 'Mo', function () {\n return this.month() + 1;\n });\n\n addFormatToken('MMM', 0, 0, function (format) {\n return this.localeData().monthsShort(this, format);\n });\n\n addFormatToken('MMMM', 0, 0, function (format) {\n return this.localeData().months(this, format);\n });\n\n // ALIASES\n\n addUnitAlias('month', 'M');\n\n // PRIORITY\n\n addUnitPriority('month', 8);\n\n // PARSING\n\n addRegexToken('M', match1to2);\n addRegexToken('MM', match1to2, match2);\n addRegexToken('MMM', function (isStrict, locale) {\n return locale.monthsShortRegex(isStrict);\n });\n addRegexToken('MMMM', function (isStrict, locale) {\n return locale.monthsRegex(isStrict);\n });\n\n addParseToken(['M', 'MM'], function (input, array) {\n array[MONTH] = toInt(input) - 1;\n });\n\n addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {\n var month = config._locale.monthsParse(input, token, config._strict);\n // if we didn't find a month name, mark the date as invalid.\n if (month != null) {\n array[MONTH] = month;\n } else {\n getParsingFlags(config).invalidMonth = input;\n }\n });\n\n // LOCALES\n\n var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split(\n '_'\n ),\n defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split(\n '_'\n ),\n MONTHS_IN_FORMAT = /D[oD]?(\\[[^\\[\\]]*\\]|\\s)+MMMM?/,\n defaultMonthsShortRegex = matchWord,\n defaultMonthsRegex = matchWord;\n\n function localeMonths(m, format) {\n if (!m) {\n return isArray(this._months)\n ? this._months\n : this._months['standalone'];\n }\n return isArray(this._months)\n ? this._months[m.month()]\n : this._months[\n (this._months.isFormat || MONTHS_IN_FORMAT).test(format)\n ? 'format'\n : 'standalone'\n ][m.month()];\n }\n\n function localeMonthsShort(m, format) {\n if (!m) {\n return isArray(this._monthsShort)\n ? this._monthsShort\n : this._monthsShort['standalone'];\n }\n return isArray(this._monthsShort)\n ? this._monthsShort[m.month()]\n : this._monthsShort[\n MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'\n ][m.month()];\n }\n\n function handleStrictParse(monthName, format, strict) {\n var i,\n ii,\n mom,\n llc = monthName.toLocaleLowerCase();\n if (!this._monthsParse) {\n // this is not used\n this._monthsParse = [];\n this._longMonthsParse = [];\n this._shortMonthsParse = [];\n for (i = 0; i < 12; ++i) {\n mom = createUTC([2000, i]);\n this._shortMonthsParse[i] = this.monthsShort(\n mom,\n ''\n ).toLocaleLowerCase();\n this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();\n }\n }\n\n if (strict) {\n if (format === 'MMM') {\n ii = indexOf.call(this._shortMonthsParse, llc);\n return ii !== -1 ? ii : null;\n } else {\n ii = indexOf.call(this._longMonthsParse, llc);\n return ii !== -1 ? ii : null;\n }\n } else {\n if (format === 'MMM') {\n ii = indexOf.call(this._shortMonthsParse, llc);\n if (ii !== -1) {\n return ii;\n }\n ii = indexOf.call(this._longMonthsParse, llc);\n return ii !== -1 ? ii : null;\n } else {\n ii = indexOf.call(this._longMonthsParse, llc);\n if (ii !== -1) {\n return ii;\n }\n ii = indexOf.call(this._shortMonthsParse, llc);\n return ii !== -1 ? ii : null;\n }\n }\n }\n\n function localeMonthsParse(monthName, format, strict) {\n var i, mom, regex;\n\n if (this._monthsParseExact) {\n return handleStrictParse.call(this, monthName, format, strict);\n }\n\n if (!this._monthsParse) {\n this._monthsParse = [];\n this._longMonthsParse = [];\n this._shortMonthsParse = [];\n }\n\n // TODO: add sorting\n // Sorting makes sure if one month (or abbr) is a prefix of another\n // see sorting in computeMonthsParse\n for (i = 0; i < 12; i++) {\n // make the regex if we don't have it already\n mom = createUTC([2000, i]);\n if (strict && !this._longMonthsParse[i]) {\n this._longMonthsParse[i] = new RegExp(\n '^' + this.months(mom, '').replace('.', '') + '$',\n 'i'\n );\n this._shortMonthsParse[i] = new RegExp(\n '^' + this.monthsShort(mom, '').replace('.', '') + '$',\n 'i'\n );\n }\n if (!strict && !this._monthsParse[i]) {\n regex =\n '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');\n this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');\n }\n // test the regex\n if (\n strict &&\n format === 'MMMM' &&\n this._longMonthsParse[i].test(monthName)\n ) {\n return i;\n } else if (\n strict &&\n format === 'MMM' &&\n this._shortMonthsParse[i].test(monthName)\n ) {\n return i;\n } else if (!strict && this._monthsParse[i].test(monthName)) {\n return i;\n }\n }\n }\n\n // MOMENTS\n\n function setMonth(mom, value) {\n var dayOfMonth;\n\n if (!mom.isValid()) {\n // No op\n return mom;\n }\n\n if (typeof value === 'string') {\n if (/^\\d+$/.test(value)) {\n value = toInt(value);\n } else {\n value = mom.localeData().monthsParse(value);\n // TODO: Another silent failure?\n if (!isNumber(value)) {\n return mom;\n }\n }\n }\n\n dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));\n mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);\n return mom;\n }\n\n function getSetMonth(value) {\n if (value != null) {\n setMonth(this, value);\n hooks.updateOffset(this, true);\n return this;\n } else {\n return get(this, 'Month');\n }\n }\n\n function getDaysInMonth() {\n return daysInMonth(this.year(), this.month());\n }\n\n function monthsShortRegex(isStrict) {\n if (this._monthsParseExact) {\n if (!hasOwnProp(this, '_monthsRegex')) {\n computeMonthsParse.call(this);\n }\n if (isStrict) {\n return this._monthsShortStrictRegex;\n } else {\n return this._monthsShortRegex;\n }\n } else {\n if (!hasOwnProp(this, '_monthsShortRegex')) {\n this._monthsShortRegex = defaultMonthsShortRegex;\n }\n return this._monthsShortStrictRegex && isStrict\n ? this._monthsShortStrictRegex\n : this._monthsShortRegex;\n }\n }\n\n function monthsRegex(isStrict) {\n if (this._monthsParseExact) {\n if (!hasOwnProp(this, '_monthsRegex')) {\n computeMonthsParse.call(this);\n }\n if (isStrict) {\n return this._monthsStrictRegex;\n } else {\n return this._monthsRegex;\n }\n } else {\n if (!hasOwnProp(this, '_monthsRegex')) {\n this._monthsRegex = defaultMonthsRegex;\n }\n return this._monthsStrictRegex && isStrict\n ? this._monthsStrictRegex\n : this._monthsRegex;\n }\n }\n\n function computeMonthsParse() {\n function cmpLenRev(a, b) {\n return b.length - a.length;\n }\n\n var shortPieces = [],\n longPieces = [],\n mixedPieces = [],\n i,\n mom;\n for (i = 0; i < 12; i++) {\n // make the regex if we don't have it already\n mom = createUTC([2000, i]);\n shortPieces.push(this.monthsShort(mom, ''));\n longPieces.push(this.months(mom, ''));\n mixedPieces.push(this.months(mom, ''));\n mixedPieces.push(this.monthsShort(mom, ''));\n }\n // Sorting makes sure if one month (or abbr) is a prefix of another it\n // will match the longer piece.\n shortPieces.sort(cmpLenRev);\n longPieces.sort(cmpLenRev);\n mixedPieces.sort(cmpLenRev);\n for (i = 0; i < 12; i++) {\n shortPieces[i] = regexEscape(shortPieces[i]);\n longPieces[i] = regexEscape(longPieces[i]);\n }\n for (i = 0; i < 24; i++) {\n mixedPieces[i] = regexEscape(mixedPieces[i]);\n }\n\n this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');\n this._monthsShortRegex = this._monthsRegex;\n this._monthsStrictRegex = new RegExp(\n '^(' + longPieces.join('|') + ')',\n 'i'\n );\n this._monthsShortStrictRegex = new RegExp(\n '^(' + shortPieces.join('|') + ')',\n 'i'\n );\n }\n\n // FORMATTING\n\n addFormatToken('Y', 0, 0, function () {\n var y = this.year();\n return y <= 9999 ? zeroFill(y, 4) : '+' + y;\n });\n\n addFormatToken(0, ['YY', 2], 0, function () {\n return this.year() % 100;\n });\n\n addFormatToken(0, ['YYYY', 4], 0, 'year');\n addFormatToken(0, ['YYYYY', 5], 0, 'year');\n addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');\n\n // ALIASES\n\n addUnitAlias('year', 'y');\n\n // PRIORITIES\n\n addUnitPriority('year', 1);\n\n // PARSING\n\n addRegexToken('Y', matchSigned);\n addRegexToken('YY', match1to2, match2);\n addRegexToken('YYYY', match1to4, match4);\n addRegexToken('YYYYY', match1to6, match6);\n addRegexToken('YYYYYY', match1to6, match6);\n\n addParseToken(['YYYYY', 'YYYYYY'], YEAR);\n addParseToken('YYYY', function (input, array) {\n array[YEAR] =\n input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);\n });\n addParseToken('YY', function (input, array) {\n array[YEAR] = hooks.parseTwoDigitYear(input);\n });\n addParseToken('Y', function (input, array) {\n array[YEAR] = parseInt(input, 10);\n });\n\n // HELPERS\n\n function daysInYear(year) {\n return isLeapYear(year) ? 366 : 365;\n }\n\n // HOOKS\n\n hooks.parseTwoDigitYear = function (input) {\n return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);\n };\n\n // MOMENTS\n\n var getSetYear = makeGetSet('FullYear', true);\n\n function getIsLeapYear() {\n return isLeapYear(this.year());\n }\n\n function createDate(y, m, d, h, M, s, ms) {\n // can't just apply() to create a date:\n // https://stackoverflow.com/q/181348\n var date;\n // the date constructor remaps years 0-99 to 1900-1999\n if (y < 100 && y >= 0) {\n // preserve leap years using a full 400 year cycle, then reset\n date = new Date(y + 400, m, d, h, M, s, ms);\n if (isFinite(date.getFullYear())) {\n date.setFullYear(y);\n }\n } else {\n date = new Date(y, m, d, h, M, s, ms);\n }\n\n return date;\n }\n\n function createUTCDate(y) {\n var date, args;\n // the Date.UTC function remaps years 0-99 to 1900-1999\n if (y < 100 && y >= 0) {\n args = Array.prototype.slice.call(arguments);\n // preserve leap years using a full 400 year cycle, then reset\n args[0] = y + 400;\n date = new Date(Date.UTC.apply(null, args));\n if (isFinite(date.getUTCFullYear())) {\n date.setUTCFullYear(y);\n }\n } else {\n date = new Date(Date.UTC.apply(null, arguments));\n }\n\n return date;\n }\n\n // start-of-first-week - start-of-year\n function firstWeekOffset(year, dow, doy) {\n var // first-week day -- which january is always in the first week (4 for iso, 1 for other)\n fwd = 7 + dow - doy,\n // first-week day local weekday -- which local weekday is fwd\n fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;\n\n return -fwdlw + fwd - 1;\n }\n\n // https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday\n function dayOfYearFromWeeks(year, week, weekday, dow, doy) {\n var localWeekday = (7 + weekday - dow) % 7,\n weekOffset = firstWeekOffset(year, dow, doy),\n dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,\n resYear,\n resDayOfYear;\n\n if (dayOfYear <= 0) {\n resYear = year - 1;\n resDayOfYear = daysInYear(resYear) + dayOfYear;\n } else if (dayOfYear > daysInYear(year)) {\n resYear = year + 1;\n resDayOfYear = dayOfYear - daysInYear(year);\n } else {\n resYear = year;\n resDayOfYear = dayOfYear;\n }\n\n return {\n year: resYear,\n dayOfYear: resDayOfYear,\n };\n }\n\n function weekOfYear(mom, dow, doy) {\n var weekOffset = firstWeekOffset(mom.year(), dow, doy),\n week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,\n resWeek,\n resYear;\n\n if (week < 1) {\n resYear = mom.year() - 1;\n resWeek = week + weeksInYear(resYear, dow, doy);\n } else if (week > weeksInYear(mom.year(), dow, doy)) {\n resWeek = week - weeksInYear(mom.year(), dow, doy);\n resYear = mom.year() + 1;\n } else {\n resYear = mom.year();\n resWeek = week;\n }\n\n return {\n week: resWeek,\n year: resYear,\n };\n }\n\n function weeksInYear(year, dow, doy) {\n var weekOffset = firstWeekOffset(year, dow, doy),\n weekOffsetNext = firstWeekOffset(year + 1, dow, doy);\n return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;\n }\n\n // FORMATTING\n\n addFormatToken('w', ['ww', 2], 'wo', 'week');\n addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');\n\n // ALIASES\n\n addUnitAlias('week', 'w');\n addUnitAlias('isoWeek', 'W');\n\n // PRIORITIES\n\n addUnitPriority('week', 5);\n addUnitPriority('isoWeek', 5);\n\n // PARSING\n\n addRegexToken('w', match1to2);\n addRegexToken('ww', match1to2, match2);\n addRegexToken('W', match1to2);\n addRegexToken('WW', match1to2, match2);\n\n addWeekParseToken(['w', 'ww', 'W', 'WW'], function (\n input,\n week,\n config,\n token\n ) {\n week[token.substr(0, 1)] = toInt(input);\n });\n\n // HELPERS\n\n // LOCALES\n\n function localeWeek(mom) {\n return weekOfYear(mom, this._week.dow, this._week.doy).week;\n }\n\n var defaultLocaleWeek = {\n dow: 0, // Sunday is the first day of the week.\n doy: 6, // The week that contains Jan 6th is the first week of the year.\n };\n\n function localeFirstDayOfWeek() {\n return this._week.dow;\n }\n\n function localeFirstDayOfYear() {\n return this._week.doy;\n }\n\n // MOMENTS\n\n function getSetWeek(input) {\n var week = this.localeData().week(this);\n return input == null ? week : this.add((input - week) * 7, 'd');\n }\n\n function getSetISOWeek(input) {\n var week = weekOfYear(this, 1, 4).week;\n return input == null ? week : this.add((input - week) * 7, 'd');\n }\n\n // FORMATTING\n\n addFormatToken('d', 0, 'do', 'day');\n\n addFormatToken('dd', 0, 0, function (format) {\n return this.localeData().weekdaysMin(this, format);\n });\n\n addFormatToken('ddd', 0, 0, function (format) {\n return this.localeData().weekdaysShort(this, format);\n });\n\n addFormatToken('dddd', 0, 0, function (format) {\n return this.localeData().weekdays(this, format);\n });\n\n addFormatToken('e', 0, 0, 'weekday');\n addFormatToken('E', 0, 0, 'isoWeekday');\n\n // ALIASES\n\n addUnitAlias('day', 'd');\n addUnitAlias('weekday', 'e');\n addUnitAlias('isoWeekday', 'E');\n\n // PRIORITY\n addUnitPriority('day', 11);\n addUnitPriority('weekday', 11);\n addUnitPriority('isoWeekday', 11);\n\n // PARSING\n\n addRegexToken('d', match1to2);\n addRegexToken('e', match1to2);\n addRegexToken('E', match1to2);\n addRegexToken('dd', function (isStrict, locale) {\n return locale.weekdaysMinRegex(isStrict);\n });\n addRegexToken('ddd', function (isStrict, locale) {\n return locale.weekdaysShortRegex(isStrict);\n });\n addRegexToken('dddd', function (isStrict, locale) {\n return locale.weekdaysRegex(isStrict);\n });\n\n addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {\n var weekday = config._locale.weekdaysParse(input, token, config._strict);\n // if we didn't get a weekday name, mark the date as invalid\n if (weekday != null) {\n week.d = weekday;\n } else {\n getParsingFlags(config).invalidWeekday = input;\n }\n });\n\n addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {\n week[token] = toInt(input);\n });\n\n // HELPERS\n\n function parseWeekday(input, locale) {\n if (typeof input !== 'string') {\n return input;\n }\n\n if (!isNaN(input)) {\n return parseInt(input, 10);\n }\n\n input = locale.weekdaysParse(input);\n if (typeof input === 'number') {\n return input;\n }\n\n return null;\n }\n\n function parseIsoWeekday(input, locale) {\n if (typeof input === 'string') {\n return locale.weekdaysParse(input) % 7 || 7;\n }\n return isNaN(input) ? null : input;\n }\n\n // LOCALES\n function shiftWeekdays(ws, n) {\n return ws.slice(n, 7).concat(ws.slice(0, n));\n }\n\n var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split(\n '_'\n ),\n defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_'),\n defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_'),\n defaultWeekdaysRegex = matchWord,\n defaultWeekdaysShortRegex = matchWord,\n defaultWeekdaysMinRegex = matchWord;\n\n function localeWeekdays(m, format) {\n var weekdays = isArray(this._weekdays)\n ? this._weekdays\n : this._weekdays[\n m && m !== true && this._weekdays.isFormat.test(format)\n ? 'format'\n : 'standalone'\n ];\n return m === true\n ? shiftWeekdays(weekdays, this._week.dow)\n : m\n ? weekdays[m.day()]\n : weekdays;\n }\n\n function localeWeekdaysShort(m) {\n return m === true\n ? shiftWeekdays(this._weekdaysShort, this._week.dow)\n : m\n ? this._weekdaysShort[m.day()]\n : this._weekdaysShort;\n }\n\n function localeWeekdaysMin(m) {\n return m === true\n ? shiftWeekdays(this._weekdaysMin, this._week.dow)\n : m\n ? this._weekdaysMin[m.day()]\n : this._weekdaysMin;\n }\n\n function handleStrictParse$1(weekdayName, format, strict) {\n var i,\n ii,\n mom,\n llc = weekdayName.toLocaleLowerCase();\n if (!this._weekdaysParse) {\n this._weekdaysParse = [];\n this._shortWeekdaysParse = [];\n this._minWeekdaysParse = [];\n\n for (i = 0; i < 7; ++i) {\n mom = createUTC([2000, 1]).day(i);\n this._minWeekdaysParse[i] = this.weekdaysMin(\n mom,\n ''\n ).toLocaleLowerCase();\n this._shortWeekdaysParse[i] = this.weekdaysShort(\n mom,\n ''\n ).toLocaleLowerCase();\n this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();\n }\n }\n\n if (strict) {\n if (format === 'dddd') {\n ii = indexOf.call(this._weekdaysParse, llc);\n return ii !== -1 ? ii : null;\n } else if (format === 'ddd') {\n ii = indexOf.call(this._shortWeekdaysParse, llc);\n return ii !== -1 ? ii : null;\n } else {\n ii = indexOf.call(this._minWeekdaysParse, llc);\n return ii !== -1 ? ii : null;\n }\n } else {\n if (format === 'dddd') {\n ii = indexOf.call(this._weekdaysParse, llc);\n if (ii !== -1) {\n return ii;\n }\n ii = indexOf.call(this._shortWeekdaysParse, llc);\n if (ii !== -1) {\n return ii;\n }\n ii = indexOf.call(this._minWeekdaysParse, llc);\n return ii !== -1 ? ii : null;\n } else if (format === 'ddd') {\n ii = indexOf.call(this._shortWeekdaysParse, llc);\n if (ii !== -1) {\n return ii;\n }\n ii = indexOf.call(this._weekdaysParse, llc);\n if (ii !== -1) {\n return ii;\n }\n ii = indexOf.call(this._minWeekdaysParse, llc);\n return ii !== -1 ? ii : null;\n } else {\n ii = indexOf.call(this._minWeekdaysParse, llc);\n if (ii !== -1) {\n return ii;\n }\n ii = indexOf.call(this._weekdaysParse, llc);\n if (ii !== -1) {\n return ii;\n }\n ii = indexOf.call(this._shortWeekdaysParse, llc);\n return ii !== -1 ? ii : null;\n }\n }\n }\n\n function localeWeekdaysParse(weekdayName, format, strict) {\n var i, mom, regex;\n\n if (this._weekdaysParseExact) {\n return handleStrictParse$1.call(this, weekdayName, format, strict);\n }\n\n if (!this._weekdaysParse) {\n this._weekdaysParse = [];\n this._minWeekdaysParse = [];\n this._shortWeekdaysParse = [];\n this._fullWeekdaysParse = [];\n }\n\n for (i = 0; i < 7; i++) {\n // make the regex if we don't have it already\n\n mom = createUTC([2000, 1]).day(i);\n if (strict && !this._fullWeekdaysParse[i]) {\n this._fullWeekdaysParse[i] = new RegExp(\n '^' + this.weekdays(mom, '').replace('.', '\\\\.?') + '$',\n 'i'\n );\n this._shortWeekdaysParse[i] = new RegExp(\n '^' + this.weekdaysShort(mom, '').replace('.', '\\\\.?') + '$',\n 'i'\n );\n this._minWeekdaysParse[i] = new RegExp(\n '^' + this.weekdaysMin(mom, '').replace('.', '\\\\.?') + '$',\n 'i'\n );\n }\n if (!this._weekdaysParse[i]) {\n regex =\n '^' +\n this.weekdays(mom, '') +\n '|^' +\n this.weekdaysShort(mom, '') +\n '|^' +\n this.weekdaysMin(mom, '');\n this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');\n }\n // test the regex\n if (\n strict &&\n format === 'dddd' &&\n this._fullWeekdaysParse[i].test(weekdayName)\n ) {\n return i;\n } else if (\n strict &&\n format === 'ddd' &&\n this._shortWeekdaysParse[i].test(weekdayName)\n ) {\n return i;\n } else if (\n strict &&\n format === 'dd' &&\n this._minWeekdaysParse[i].test(weekdayName)\n ) {\n return i;\n } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {\n return i;\n }\n }\n }\n\n // MOMENTS\n\n function getSetDayOfWeek(input) {\n if (!this.isValid()) {\n return input != null ? this : NaN;\n }\n var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();\n if (input != null) {\n input = parseWeekday(input, this.localeData());\n return this.add(input - day, 'd');\n } else {\n return day;\n }\n }\n\n function getSetLocaleDayOfWeek(input) {\n if (!this.isValid()) {\n return input != null ? this : NaN;\n }\n var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;\n return input == null ? weekday : this.add(input - weekday, 'd');\n }\n\n function getSetISODayOfWeek(input) {\n if (!this.isValid()) {\n return input != null ? this : NaN;\n }\n\n // behaves the same as moment#day except\n // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)\n // as a setter, sunday should belong to the previous week.\n\n if (input != null) {\n var weekday = parseIsoWeekday(input, this.localeData());\n return this.day(this.day() % 7 ? weekday : weekday - 7);\n } else {\n return this.day() || 7;\n }\n }\n\n function weekdaysRegex(isStrict) {\n if (this._weekdaysParseExact) {\n if (!hasOwnProp(this, '_weekdaysRegex')) {\n computeWeekdaysParse.call(this);\n }\n if (isStrict) {\n return this._weekdaysStrictRegex;\n } else {\n return this._weekdaysRegex;\n }\n } else {\n if (!hasOwnProp(this, '_weekdaysRegex')) {\n this._weekdaysRegex = defaultWeekdaysRegex;\n }\n return this._weekdaysStrictRegex && isStrict\n ? this._weekdaysStrictRegex\n : this._weekdaysRegex;\n }\n }\n\n function weekdaysShortRegex(isStrict) {\n if (this._weekdaysParseExact) {\n if (!hasOwnProp(this, '_weekdaysRegex')) {\n computeWeekdaysParse.call(this);\n }\n if (isStrict) {\n return this._weekdaysShortStrictRegex;\n } else {\n return this._weekdaysShortRegex;\n }\n } else {\n if (!hasOwnProp(this, '_weekdaysShortRegex')) {\n this._weekdaysShortRegex = defaultWeekdaysShortRegex;\n }\n return this._weekdaysShortStrictRegex && isStrict\n ? this._weekdaysShortStrictRegex\n : this._weekdaysShortRegex;\n }\n }\n\n function weekdaysMinRegex(isStrict) {\n if (this._weekdaysParseExact) {\n if (!hasOwnProp(this, '_weekdaysRegex')) {\n computeWeekdaysParse.call(this);\n }\n if (isStrict) {\n return this._weekdaysMinStrictRegex;\n } else {\n return this._weekdaysMinRegex;\n }\n } else {\n if (!hasOwnProp(this, '_weekdaysMinRegex')) {\n this._weekdaysMinRegex = defaultWeekdaysMinRegex;\n }\n return this._weekdaysMinStrictRegex && isStrict\n ? this._weekdaysMinStrictRegex\n : this._weekdaysMinRegex;\n }\n }\n\n function computeWeekdaysParse() {\n function cmpLenRev(a, b) {\n return b.length - a.length;\n }\n\n var minPieces = [],\n shortPieces = [],\n longPieces = [],\n mixedPieces = [],\n i,\n mom,\n minp,\n shortp,\n longp;\n for (i = 0; i < 7; i++) {\n // make the regex if we don't have it already\n mom = createUTC([2000, 1]).day(i);\n minp = regexEscape(this.weekdaysMin(mom, ''));\n shortp = regexEscape(this.weekdaysShort(mom, ''));\n longp = regexEscape(this.weekdays(mom, ''));\n minPieces.push(minp);\n shortPieces.push(shortp);\n longPieces.push(longp);\n mixedPieces.push(minp);\n mixedPieces.push(shortp);\n mixedPieces.push(longp);\n }\n // Sorting makes sure if one weekday (or abbr) is a prefix of another it\n // will match the longer piece.\n minPieces.sort(cmpLenRev);\n shortPieces.sort(cmpLenRev);\n longPieces.sort(cmpLenRev);\n mixedPieces.sort(cmpLenRev);\n\n this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');\n this._weekdaysShortRegex = this._weekdaysRegex;\n this._weekdaysMinRegex = this._weekdaysRegex;\n\n this._weekdaysStrictRegex = new RegExp(\n '^(' + longPieces.join('|') + ')',\n 'i'\n );\n this._weekdaysShortStrictRegex = new RegExp(\n '^(' + shortPieces.join('|') + ')',\n 'i'\n );\n this._weekdaysMinStrictRegex = new RegExp(\n '^(' + minPieces.join('|') + ')',\n 'i'\n );\n }\n\n // FORMATTING\n\n function hFormat() {\n return this.hours() % 12 || 12;\n }\n\n function kFormat() {\n return this.hours() || 24;\n }\n\n addFormatToken('H', ['HH', 2], 0, 'hour');\n addFormatToken('h', ['hh', 2], 0, hFormat);\n addFormatToken('k', ['kk', 2], 0, kFormat);\n\n addFormatToken('hmm', 0, 0, function () {\n return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);\n });\n\n addFormatToken('hmmss', 0, 0, function () {\n return (\n '' +\n hFormat.apply(this) +\n zeroFill(this.minutes(), 2) +\n zeroFill(this.seconds(), 2)\n );\n });\n\n addFormatToken('Hmm', 0, 0, function () {\n return '' + this.hours() + zeroFill(this.minutes(), 2);\n });\n\n addFormatToken('Hmmss', 0, 0, function () {\n return (\n '' +\n this.hours() +\n zeroFill(this.minutes(), 2) +\n zeroFill(this.seconds(), 2)\n );\n });\n\n function meridiem(token, lowercase) {\n addFormatToken(token, 0, 0, function () {\n return this.localeData().meridiem(\n this.hours(),\n this.minutes(),\n lowercase\n );\n });\n }\n\n meridiem('a', true);\n meridiem('A', false);\n\n // ALIASES\n\n addUnitAlias('hour', 'h');\n\n // PRIORITY\n addUnitPriority('hour', 13);\n\n // PARSING\n\n function matchMeridiem(isStrict, locale) {\n return locale._meridiemParse;\n }\n\n addRegexToken('a', matchMeridiem);\n addRegexToken('A', matchMeridiem);\n addRegexToken('H', match1to2);\n addRegexToken('h', match1to2);\n addRegexToken('k', match1to2);\n addRegexToken('HH', match1to2, match2);\n addRegexToken('hh', match1to2, match2);\n addRegexToken('kk', match1to2, match2);\n\n addRegexToken('hmm', match3to4);\n addRegexToken('hmmss', match5to6);\n addRegexToken('Hmm', match3to4);\n addRegexToken('Hmmss', match5to6);\n\n addParseToken(['H', 'HH'], HOUR);\n addParseToken(['k', 'kk'], function (input, array, config) {\n var kInput = toInt(input);\n array[HOUR] = kInput === 24 ? 0 : kInput;\n });\n addParseToken(['a', 'A'], function (input, array, config) {\n config._isPm = config._locale.isPM(input);\n config._meridiem = input;\n });\n addParseToken(['h', 'hh'], function (input, array, config) {\n array[HOUR] = toInt(input);\n getParsingFlags(config).bigHour = true;\n });\n addParseToken('hmm', function (input, array, config) {\n var pos = input.length - 2;\n array[HOUR] = toInt(input.substr(0, pos));\n array[MINUTE] = toInt(input.substr(pos));\n getParsingFlags(config).bigHour = true;\n });\n addParseToken('hmmss', function (input, array, config) {\n var pos1 = input.length - 4,\n pos2 = input.length - 2;\n array[HOUR] = toInt(input.substr(0, pos1));\n array[MINUTE] = toInt(input.substr(pos1, 2));\n array[SECOND] = toInt(input.substr(pos2));\n getParsingFlags(config).bigHour = true;\n });\n addParseToken('Hmm', function (input, array, config) {\n var pos = input.length - 2;\n array[HOUR] = toInt(input.substr(0, pos));\n array[MINUTE] = toInt(input.substr(pos));\n });\n addParseToken('Hmmss', function (input, array, config) {\n var pos1 = input.length - 4,\n pos2 = input.length - 2;\n array[HOUR] = toInt(input.substr(0, pos1));\n array[MINUTE] = toInt(input.substr(pos1, 2));\n array[SECOND] = toInt(input.substr(pos2));\n });\n\n // LOCALES\n\n function localeIsPM(input) {\n // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays\n // Using charAt should be more compatible.\n return (input + '').toLowerCase().charAt(0) === 'p';\n }\n\n var defaultLocaleMeridiemParse = /[ap]\\.?m?\\.?/i,\n // Setting the hour should keep the time, because the user explicitly\n // specified which hour they want. So trying to maintain the same hour (in\n // a new timezone) makes sense. Adding/subtracting hours does not follow\n // this rule.\n getSetHour = makeGetSet('Hours', true);\n\n function localeMeridiem(hours, minutes, isLower) {\n if (hours > 11) {\n return isLower ? 'pm' : 'PM';\n } else {\n return isLower ? 'am' : 'AM';\n }\n }\n\n var baseConfig = {\n calendar: defaultCalendar,\n longDateFormat: defaultLongDateFormat,\n invalidDate: defaultInvalidDate,\n ordinal: defaultOrdinal,\n dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,\n relativeTime: defaultRelativeTime,\n\n months: defaultLocaleMonths,\n monthsShort: defaultLocaleMonthsShort,\n\n week: defaultLocaleWeek,\n\n weekdays: defaultLocaleWeekdays,\n weekdaysMin: defaultLocaleWeekdaysMin,\n weekdaysShort: defaultLocaleWeekdaysShort,\n\n meridiemParse: defaultLocaleMeridiemParse,\n };\n\n // internal storage for locale config files\n var locales = {},\n localeFamilies = {},\n globalLocale;\n\n function commonPrefix(arr1, arr2) {\n var i,\n minl = Math.min(arr1.length, arr2.length);\n for (i = 0; i < minl; i += 1) {\n if (arr1[i] !== arr2[i]) {\n return i;\n }\n }\n return minl;\n }\n\n function normalizeLocale(key) {\n return key ? key.toLowerCase().replace('_', '-') : key;\n }\n\n // pick the locale from the array\n // try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each\n // substring from most specific to least, but move to the next array item if it's a more specific variant than the current root\n function chooseLocale(names) {\n var i = 0,\n j,\n next,\n locale,\n split;\n\n while (i < names.length) {\n split = normalizeLocale(names[i]).split('-');\n j = split.length;\n next = normalizeLocale(names[i + 1]);\n next = next ? next.split('-') : null;\n while (j > 0) {\n locale = loadLocale(split.slice(0, j).join('-'));\n if (locale) {\n return locale;\n }\n if (\n next &&\n next.length >= j &&\n commonPrefix(split, next) >= j - 1\n ) {\n //the next array item is better than a shallower substring of this one\n break;\n }\n j--;\n }\n i++;\n }\n return globalLocale;\n }\n\n function loadLocale(name) {\n var oldLocale = null,\n aliasedRequire;\n // TODO: Find a better way to register and load all the locales in Node\n if (\n locales[name] === undefined &&\n typeof module !== 'undefined' &&\n module &&\n module.exports\n ) {\n try {\n oldLocale = globalLocale._abbr;\n aliasedRequire = require;\n aliasedRequire('./locale/' + name);\n getSetGlobalLocale(oldLocale);\n } catch (e) {\n // mark as not found to avoid repeating expensive file require call causing high CPU\n // when trying to find en-US, en_US, en-us for every format call\n locales[name] = null; // null means not found\n }\n }\n return locales[name];\n }\n\n // This function will load locale and then set the global locale. If\n // no arguments are passed in, it will simply return the current global\n // locale key.\n function getSetGlobalLocale(key, values) {\n var data;\n if (key) {\n if (isUndefined(values)) {\n data = getLocale(key);\n } else {\n data = defineLocale(key, values);\n }\n\n if (data) {\n // moment.duration._locale = moment._locale = data;\n globalLocale = data;\n } else {\n if (typeof console !== 'undefined' && console.warn) {\n //warn user if arguments are passed but the locale could not be set\n console.warn(\n 'Locale ' + key + ' not found. Did you forget to load it?'\n );\n }\n }\n }\n\n return globalLocale._abbr;\n }\n\n function defineLocale(name, config) {\n if (config !== null) {\n var locale,\n parentConfig = baseConfig;\n config.abbr = name;\n if (locales[name] != null) {\n deprecateSimple(\n 'defineLocaleOverride',\n 'use moment.updateLocale(localeName, config) to change ' +\n 'an existing locale. moment.defineLocale(localeName, ' +\n 'config) should only be used for creating a new locale ' +\n 'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.'\n );\n parentConfig = locales[name]._config;\n } else if (config.parentLocale != null) {\n if (locales[config.parentLocale] != null) {\n parentConfig = locales[config.parentLocale]._config;\n } else {\n locale = loadLocale(config.parentLocale);\n if (locale != null) {\n parentConfig = locale._config;\n } else {\n if (!localeFamilies[config.parentLocale]) {\n localeFamilies[config.parentLocale] = [];\n }\n localeFamilies[config.parentLocale].push({\n name: name,\n config: config,\n });\n return null;\n }\n }\n }\n locales[name] = new Locale(mergeConfigs(parentConfig, config));\n\n if (localeFamilies[name]) {\n localeFamilies[name].forEach(function (x) {\n defineLocale(x.name, x.config);\n });\n }\n\n // backwards compat for now: also set the locale\n // make sure we set the locale AFTER all child locales have been\n // created, so we won't end up with the child locale set.\n getSetGlobalLocale(name);\n\n return locales[name];\n } else {\n // useful for testing\n delete locales[name];\n return null;\n }\n }\n\n function updateLocale(name, config) {\n if (config != null) {\n var locale,\n tmpLocale,\n parentConfig = baseConfig;\n\n if (locales[name] != null && locales[name].parentLocale != null) {\n // Update existing child locale in-place to avoid memory-leaks\n locales[name].set(mergeConfigs(locales[name]._config, config));\n } else {\n // MERGE\n tmpLocale = loadLocale(name);\n if (tmpLocale != null) {\n parentConfig = tmpLocale._config;\n }\n config = mergeConfigs(parentConfig, config);\n if (tmpLocale == null) {\n // updateLocale is called for creating a new locale\n // Set abbr so it will have a name (getters return\n // undefined otherwise).\n config.abbr = name;\n }\n locale = new Locale(config);\n locale.parentLocale = locales[name];\n locales[name] = locale;\n }\n\n // backwards compat for now: also set the locale\n getSetGlobalLocale(name);\n } else {\n // pass null for config to unupdate, useful for tests\n if (locales[name] != null) {\n if (locales[name].parentLocale != null) {\n locales[name] = locales[name].parentLocale;\n if (name === getSetGlobalLocale()) {\n getSetGlobalLocale(name);\n }\n } else if (locales[name] != null) {\n delete locales[name];\n }\n }\n }\n return locales[name];\n }\n\n // returns locale data\n function getLocale(key) {\n var locale;\n\n if (key && key._locale && key._locale._abbr) {\n key = key._locale._abbr;\n }\n\n if (!key) {\n return globalLocale;\n }\n\n if (!isArray(key)) {\n //short-circuit everything else\n locale = loadLocale(key);\n if (locale) {\n return locale;\n }\n key = [key];\n }\n\n return chooseLocale(key);\n }\n\n function listLocales() {\n return keys(locales);\n }\n\n function checkOverflow(m) {\n var overflow,\n a = m._a;\n\n if (a && getParsingFlags(m).overflow === -2) {\n overflow =\n a[MONTH] < 0 || a[MONTH] > 11\n ? MONTH\n : a[DATE] < 1 || a[DATE] > daysInMonth(a[YEAR], a[MONTH])\n ? DATE\n : a[HOUR] < 0 ||\n a[HOUR] > 24 ||\n (a[HOUR] === 24 &&\n (a[MINUTE] !== 0 ||\n a[SECOND] !== 0 ||\n a[MILLISECOND] !== 0))\n ? HOUR\n : a[MINUTE] < 0 || a[MINUTE] > 59\n ? MINUTE\n : a[SECOND] < 0 || a[SECOND] > 59\n ? SECOND\n : a[MILLISECOND] < 0 || a[MILLISECOND] > 999\n ? MILLISECOND\n : -1;\n\n if (\n getParsingFlags(m)._overflowDayOfYear &&\n (overflow < YEAR || overflow > DATE)\n ) {\n overflow = DATE;\n }\n if (getParsingFlags(m)._overflowWeeks && overflow === -1) {\n overflow = WEEK;\n }\n if (getParsingFlags(m)._overflowWeekday && overflow === -1) {\n overflow = WEEKDAY;\n }\n\n getParsingFlags(m).overflow = overflow;\n }\n\n return m;\n }\n\n // iso 8601 regex\n // 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)\n var extendedIsoRegex = /^\\s*((?:[+-]\\d{6}|\\d{4})-(?:\\d\\d-\\d\\d|W\\d\\d-\\d|W\\d\\d|\\d\\d\\d|\\d\\d))(?:(T| )(\\d\\d(?::\\d\\d(?::\\d\\d(?:[.,]\\d+)?)?)?)([+-]\\d\\d(?::?\\d\\d)?|\\s*Z)?)?$/,\n basicIsoRegex = /^\\s*((?:[+-]\\d{6}|\\d{4})(?:\\d\\d\\d\\d|W\\d\\d\\d|W\\d\\d|\\d\\d\\d|\\d\\d|))(?:(T| )(\\d\\d(?:\\d\\d(?:\\d\\d(?:[.,]\\d+)?)?)?)([+-]\\d\\d(?::?\\d\\d)?|\\s*Z)?)?$/,\n tzRegex = /Z|[+-]\\d\\d(?::?\\d\\d)?/,\n isoDates = [\n ['YYYYYY-MM-DD', /[+-]\\d{6}-\\d\\d-\\d\\d/],\n ['YYYY-MM-DD', /\\d{4}-\\d\\d-\\d\\d/],\n ['GGGG-[W]WW-E', /\\d{4}-W\\d\\d-\\d/],\n ['GGGG-[W]WW', /\\d{4}-W\\d\\d/, false],\n ['YYYY-DDD', /\\d{4}-\\d{3}/],\n ['YYYY-MM', /\\d{4}-\\d\\d/, false],\n ['YYYYYYMMDD', /[+-]\\d{10}/],\n ['YYYYMMDD', /\\d{8}/],\n ['GGGG[W]WWE', /\\d{4}W\\d{3}/],\n ['GGGG[W]WW', /\\d{4}W\\d{2}/, false],\n ['YYYYDDD', /\\d{7}/],\n ['YYYYMM', /\\d{6}/, false],\n ['YYYY', /\\d{4}/, false],\n ],\n // iso time formats and regexes\n isoTimes = [\n ['HH:mm:ss.SSSS', /\\d\\d:\\d\\d:\\d\\d\\.\\d+/],\n ['HH:mm:ss,SSSS', /\\d\\d:\\d\\d:\\d\\d,\\d+/],\n ['HH:mm:ss', /\\d\\d:\\d\\d:\\d\\d/],\n ['HH:mm', /\\d\\d:\\d\\d/],\n ['HHmmss.SSSS', /\\d\\d\\d\\d\\d\\d\\.\\d+/],\n ['HHmmss,SSSS', /\\d\\d\\d\\d\\d\\d,\\d+/],\n ['HHmmss', /\\d\\d\\d\\d\\d\\d/],\n ['HHmm', /\\d\\d\\d\\d/],\n ['HH', /\\d\\d/],\n ],\n aspNetJsonRegex = /^\\/?Date\\((-?\\d+)/i,\n // RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3\n rfc2822 = /^(?:(Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\\s)?(\\d{1,2})\\s(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\\s(\\d{2,4})\\s(\\d\\d):(\\d\\d)(?::(\\d\\d))?\\s(?:(UT|GMT|[ECMP][SD]T)|([Zz])|([+-]\\d{4}))$/,\n obsOffsets = {\n UT: 0,\n GMT: 0,\n EDT: -4 * 60,\n EST: -5 * 60,\n CDT: -5 * 60,\n CST: -6 * 60,\n MDT: -6 * 60,\n MST: -7 * 60,\n PDT: -7 * 60,\n PST: -8 * 60,\n };\n\n // date from iso format\n function configFromISO(config) {\n var i,\n l,\n string = config._i,\n match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),\n allowTime,\n dateFormat,\n timeFormat,\n tzFormat;\n\n if (match) {\n getParsingFlags(config).iso = true;\n\n for (i = 0, l = isoDates.length; i < l; i++) {\n if (isoDates[i][1].exec(match[1])) {\n dateFormat = isoDates[i][0];\n allowTime = isoDates[i][2] !== false;\n break;\n }\n }\n if (dateFormat == null) {\n config._isValid = false;\n return;\n }\n if (match[3]) {\n for (i = 0, l = isoTimes.length; i < l; i++) {\n if (isoTimes[i][1].exec(match[3])) {\n // match[2] should be 'T' or space\n timeFormat = (match[2] || ' ') + isoTimes[i][0];\n break;\n }\n }\n if (timeFormat == null) {\n config._isValid = false;\n return;\n }\n }\n if (!allowTime && timeFormat != null) {\n config._isValid = false;\n return;\n }\n if (match[4]) {\n if (tzRegex.exec(match[4])) {\n tzFormat = 'Z';\n } else {\n config._isValid = false;\n return;\n }\n }\n config._f = dateFormat + (timeFormat || '') + (tzFormat || '');\n configFromStringAndFormat(config);\n } else {\n config._isValid = false;\n }\n }\n\n function extractFromRFC2822Strings(\n yearStr,\n monthStr,\n dayStr,\n hourStr,\n minuteStr,\n secondStr\n ) {\n var result = [\n untruncateYear(yearStr),\n defaultLocaleMonthsShort.indexOf(monthStr),\n parseInt(dayStr, 10),\n parseInt(hourStr, 10),\n parseInt(minuteStr, 10),\n ];\n\n if (secondStr) {\n result.push(parseInt(secondStr, 10));\n }\n\n return result;\n }\n\n function untruncateYear(yearStr) {\n var year = parseInt(yearStr, 10);\n if (year <= 49) {\n return 2000 + year;\n } else if (year <= 999) {\n return 1900 + year;\n }\n return year;\n }\n\n function preprocessRFC2822(s) {\n // Remove comments and folding whitespace and replace multiple-spaces with a single space\n return s\n .replace(/\\([^)]*\\)|[\\n\\t]/g, ' ')\n .replace(/(\\s\\s+)/g, ' ')\n .replace(/^\\s\\s*/, '')\n .replace(/\\s\\s*$/, '');\n }\n\n function checkWeekday(weekdayStr, parsedInput, config) {\n if (weekdayStr) {\n // TODO: Replace the vanilla JS Date object with an independent day-of-week check.\n var weekdayProvided = defaultLocaleWeekdaysShort.indexOf(weekdayStr),\n weekdayActual = new Date(\n parsedInput[0],\n parsedInput[1],\n parsedInput[2]\n ).getDay();\n if (weekdayProvided !== weekdayActual) {\n getParsingFlags(config).weekdayMismatch = true;\n config._isValid = false;\n return false;\n }\n }\n return true;\n }\n\n function calculateOffset(obsOffset, militaryOffset, numOffset) {\n if (obsOffset) {\n return obsOffsets[obsOffset];\n } else if (militaryOffset) {\n // the only allowed military tz is Z\n return 0;\n } else {\n var hm = parseInt(numOffset, 10),\n m = hm % 100,\n h = (hm - m) / 100;\n return h * 60 + m;\n }\n }\n\n // date and time from ref 2822 format\n function configFromRFC2822(config) {\n var match = rfc2822.exec(preprocessRFC2822(config._i)),\n parsedArray;\n if (match) {\n parsedArray = extractFromRFC2822Strings(\n match[4],\n match[3],\n match[2],\n match[5],\n match[6],\n match[7]\n );\n if (!checkWeekday(match[1], parsedArray, config)) {\n return;\n }\n\n config._a = parsedArray;\n config._tzm = calculateOffset(match[8], match[9], match[10]);\n\n config._d = createUTCDate.apply(null, config._a);\n config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);\n\n getParsingFlags(config).rfc2822 = true;\n } else {\n config._isValid = false;\n }\n }\n\n // date from 1) ASP.NET, 2) ISO, 3) RFC 2822 formats, or 4) optional fallback if parsing isn't strict\n function configFromString(config) {\n var matched = aspNetJsonRegex.exec(config._i);\n if (matched !== null) {\n config._d = new Date(+matched[1]);\n return;\n }\n\n configFromISO(config);\n if (config._isValid === false) {\n delete config._isValid;\n } else {\n return;\n }\n\n configFromRFC2822(config);\n if (config._isValid === false) {\n delete config._isValid;\n } else {\n return;\n }\n\n if (config._strict) {\n config._isValid = false;\n } else {\n // Final attempt, use Input Fallback\n hooks.createFromInputFallback(config);\n }\n }\n\n hooks.createFromInputFallback = deprecate(\n 'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +\n 'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +\n 'discouraged. Please refer to http://momentjs.com/guides/#/warnings/js-date/ for more info.',\n function (config) {\n config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));\n }\n );\n\n // Pick the first defined of two or three arguments.\n function defaults(a, b, c) {\n if (a != null) {\n return a;\n }\n if (b != null) {\n return b;\n }\n return c;\n }\n\n function currentDateArray(config) {\n // hooks is actually the exported moment object\n var nowValue = new Date(hooks.now());\n if (config._useUTC) {\n return [\n nowValue.getUTCFullYear(),\n nowValue.getUTCMonth(),\n nowValue.getUTCDate(),\n ];\n }\n return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];\n }\n\n // convert an array to a date.\n // the array should mirror the parameters below\n // note: all values past the year are optional and will default to the lowest possible value.\n // [year, month, day , hour, minute, second, millisecond]\n function configFromArray(config) {\n var i,\n date,\n input = [],\n currentDate,\n expectedWeekday,\n yearToUse;\n\n if (config._d) {\n return;\n }\n\n currentDate = currentDateArray(config);\n\n //compute day of the year from weeks and weekdays\n if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {\n dayOfYearFromWeekInfo(config);\n }\n\n //if the day of the year is set, figure out what it is\n if (config._dayOfYear != null) {\n yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);\n\n if (\n config._dayOfYear > daysInYear(yearToUse) ||\n config._dayOfYear === 0\n ) {\n getParsingFlags(config)._overflowDayOfYear = true;\n }\n\n date = createUTCDate(yearToUse, 0, config._dayOfYear);\n config._a[MONTH] = date.getUTCMonth();\n config._a[DATE] = date.getUTCDate();\n }\n\n // Default to current date.\n // * if no year, month, day of month are given, default to today\n // * if day of month is given, default month and year\n // * if month is given, default only year\n // * if year is given, don't default anything\n for (i = 0; i < 3 && config._a[i] == null; ++i) {\n config._a[i] = input[i] = currentDate[i];\n }\n\n // Zero out whatever was not defaulted, including time\n for (; i < 7; i++) {\n config._a[i] = input[i] =\n config._a[i] == null ? (i === 2 ? 1 : 0) : config._a[i];\n }\n\n // Check for 24:00:00.000\n if (\n config._a[HOUR] === 24 &&\n config._a[MINUTE] === 0 &&\n config._a[SECOND] === 0 &&\n config._a[MILLISECOND] === 0\n ) {\n config._nextDay = true;\n config._a[HOUR] = 0;\n }\n\n config._d = (config._useUTC ? createUTCDate : createDate).apply(\n null,\n input\n );\n expectedWeekday = config._useUTC\n ? config._d.getUTCDay()\n : config._d.getDay();\n\n // Apply timezone offset from input. The actual utcOffset can be changed\n // with parseZone.\n if (config._tzm != null) {\n config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);\n }\n\n if (config._nextDay) {\n config._a[HOUR] = 24;\n }\n\n // check for mismatching day of week\n if (\n config._w &&\n typeof config._w.d !== 'undefined' &&\n config._w.d !== expectedWeekday\n ) {\n getParsingFlags(config).weekdayMismatch = true;\n }\n }\n\n function dayOfYearFromWeekInfo(config) {\n var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow, curWeek;\n\n w = config._w;\n if (w.GG != null || w.W != null || w.E != null) {\n dow = 1;\n doy = 4;\n\n // TODO: We need to take the current isoWeekYear, but that depends on\n // how we interpret now (local, utc, fixed offset). So create\n // a now version of current config (take local/utc/offset flags, and\n // create now).\n weekYear = defaults(\n w.GG,\n config._a[YEAR],\n weekOfYear(createLocal(), 1, 4).year\n );\n week = defaults(w.W, 1);\n weekday = defaults(w.E, 1);\n if (weekday < 1 || weekday > 7) {\n weekdayOverflow = true;\n }\n } else {\n dow = config._locale._week.dow;\n doy = config._locale._week.doy;\n\n curWeek = weekOfYear(createLocal(), dow, doy);\n\n weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);\n\n // Default to current week.\n week = defaults(w.w, curWeek.week);\n\n if (w.d != null) {\n // weekday -- low day numbers are considered next week\n weekday = w.d;\n if (weekday < 0 || weekday > 6) {\n weekdayOverflow = true;\n }\n } else if (w.e != null) {\n // local weekday -- counting starts from beginning of week\n weekday = w.e + dow;\n if (w.e < 0 || w.e > 6) {\n weekdayOverflow = true;\n }\n } else {\n // default to beginning of week\n weekday = dow;\n }\n }\n if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {\n getParsingFlags(config)._overflowWeeks = true;\n } else if (weekdayOverflow != null) {\n getParsingFlags(config)._overflowWeekday = true;\n } else {\n temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);\n config._a[YEAR] = temp.year;\n config._dayOfYear = temp.dayOfYear;\n }\n }\n\n // constant that refers to the ISO standard\n hooks.ISO_8601 = function () {};\n\n // constant that refers to the RFC 2822 form\n hooks.RFC_2822 = function () {};\n\n // date from string and format string\n function configFromStringAndFormat(config) {\n // TODO: Move this to another part of the creation flow to prevent circular deps\n if (config._f === hooks.ISO_8601) {\n configFromISO(config);\n return;\n }\n if (config._f === hooks.RFC_2822) {\n configFromRFC2822(config);\n return;\n }\n config._a = [];\n getParsingFlags(config).empty = true;\n\n // This array is used to make a Date, either with `new Date` or `Date.UTC`\n var string = '' + config._i,\n i,\n parsedInput,\n tokens,\n token,\n skipped,\n stringLength = string.length,\n totalParsedInputLength = 0,\n era;\n\n tokens =\n expandFormat(config._f, config._locale).match(formattingTokens) || [];\n\n for (i = 0; i < tokens.length; i++) {\n token = tokens[i];\n parsedInput = (string.match(getParseRegexForToken(token, config)) ||\n [])[0];\n if (parsedInput) {\n skipped = string.substr(0, string.indexOf(parsedInput));\n if (skipped.length > 0) {\n getParsingFlags(config).unusedInput.push(skipped);\n }\n string = string.slice(\n string.indexOf(parsedInput) + parsedInput.length\n );\n totalParsedInputLength += parsedInput.length;\n }\n // don't parse if it's not a known token\n if (formatTokenFunctions[token]) {\n if (parsedInput) {\n getParsingFlags(config).empty = false;\n } else {\n getParsingFlags(config).unusedTokens.push(token);\n }\n addTimeToArrayFromToken(token, parsedInput, config);\n } else if (config._strict && !parsedInput) {\n getParsingFlags(config).unusedTokens.push(token);\n }\n }\n\n // add remaining unparsed input length to the string\n getParsingFlags(config).charsLeftOver =\n stringLength - totalParsedInputLength;\n if (string.length > 0) {\n getParsingFlags(config).unusedInput.push(string);\n }\n\n // clear _12h flag if hour is <= 12\n if (\n config._a[HOUR] <= 12 &&\n getParsingFlags(config).bigHour === true &&\n config._a[HOUR] > 0\n ) {\n getParsingFlags(config).bigHour = undefined;\n }\n\n getParsingFlags(config).parsedDateParts = config._a.slice(0);\n getParsingFlags(config).meridiem = config._meridiem;\n // handle meridiem\n config._a[HOUR] = meridiemFixWrap(\n config._locale,\n config._a[HOUR],\n config._meridiem\n );\n\n // handle era\n era = getParsingFlags(config).era;\n if (era !== null) {\n config._a[YEAR] = config._locale.erasConvertYear(era, config._a[YEAR]);\n }\n\n configFromArray(config);\n checkOverflow(config);\n }\n\n function meridiemFixWrap(locale, hour, meridiem) {\n var isPm;\n\n if (meridiem == null) {\n // nothing to do\n return hour;\n }\n if (locale.meridiemHour != null) {\n return locale.meridiemHour(hour, meridiem);\n } else if (locale.isPM != null) {\n // Fallback\n isPm = locale.isPM(meridiem);\n if (isPm && hour < 12) {\n hour += 12;\n }\n if (!isPm && hour === 12) {\n hour = 0;\n }\n return hour;\n } else {\n // this is not supposed to happen\n return hour;\n }\n }\n\n // date from string and array of format strings\n function configFromStringAndArray(config) {\n var tempConfig,\n bestMoment,\n scoreToBeat,\n i,\n currentScore,\n validFormatFound,\n bestFormatIsValid = false;\n\n if (config._f.length === 0) {\n getParsingFlags(config).invalidFormat = true;\n config._d = new Date(NaN);\n return;\n }\n\n for (i = 0; i < config._f.length; i++) {\n currentScore = 0;\n validFormatFound = false;\n tempConfig = copyConfig({}, config);\n if (config._useUTC != null) {\n tempConfig._useUTC = config._useUTC;\n }\n tempConfig._f = config._f[i];\n configFromStringAndFormat(tempConfig);\n\n if (isValid(tempConfig)) {\n validFormatFound = true;\n }\n\n // if there is any input that was not parsed add a penalty for that format\n currentScore += getParsingFlags(tempConfig).charsLeftOver;\n\n //or tokens\n currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;\n\n getParsingFlags(tempConfig).score = currentScore;\n\n if (!bestFormatIsValid) {\n if (\n scoreToBeat == null ||\n currentScore < scoreToBeat ||\n validFormatFound\n ) {\n scoreToBeat = currentScore;\n bestMoment = tempConfig;\n if (validFormatFound) {\n bestFormatIsValid = true;\n }\n }\n } else {\n if (currentScore < scoreToBeat) {\n scoreToBeat = currentScore;\n bestMoment = tempConfig;\n }\n }\n }\n\n extend(config, bestMoment || tempConfig);\n }\n\n function configFromObject(config) {\n if (config._d) {\n return;\n }\n\n var i = normalizeObjectUnits(config._i),\n dayOrDate = i.day === undefined ? i.date : i.day;\n config._a = map(\n [i.year, i.month, dayOrDate, i.hour, i.minute, i.second, i.millisecond],\n function (obj) {\n return obj && parseInt(obj, 10);\n }\n );\n\n configFromArray(config);\n }\n\n function createFromConfig(config) {\n var res = new Moment(checkOverflow(prepareConfig(config)));\n if (res._nextDay) {\n // Adding is smart enough around DST\n res.add(1, 'd');\n res._nextDay = undefined;\n }\n\n return res;\n }\n\n function prepareConfig(config) {\n var input = config._i,\n format = config._f;\n\n config._locale = config._locale || getLocale(config._l);\n\n if (input === null || (format === undefined && input === '')) {\n return createInvalid({ nullInput: true });\n }\n\n if (typeof input === 'string') {\n config._i = input = config._locale.preparse(input);\n }\n\n if (isMoment(input)) {\n return new Moment(checkOverflow(input));\n } else if (isDate(input)) {\n config._d = input;\n } else if (isArray(format)) {\n configFromStringAndArray(config);\n } else if (format) {\n configFromStringAndFormat(config);\n } else {\n configFromInput(config);\n }\n\n if (!isValid(config)) {\n config._d = null;\n }\n\n return config;\n }\n\n function configFromInput(config) {\n var input = config._i;\n if (isUndefined(input)) {\n config._d = new Date(hooks.now());\n } else if (isDate(input)) {\n config._d = new Date(input.valueOf());\n } else if (typeof input === 'string') {\n configFromString(config);\n } else if (isArray(input)) {\n config._a = map(input.slice(0), function (obj) {\n return parseInt(obj, 10);\n });\n configFromArray(config);\n } else if (isObject(input)) {\n configFromObject(config);\n } else if (isNumber(input)) {\n // from milliseconds\n config._d = new Date(input);\n } else {\n hooks.createFromInputFallback(config);\n }\n }\n\n function createLocalOrUTC(input, format, locale, strict, isUTC) {\n var c = {};\n\n if (format === true || format === false) {\n strict = format;\n format = undefined;\n }\n\n if (locale === true || locale === false) {\n strict = locale;\n locale = undefined;\n }\n\n if (\n (isObject(input) && isObjectEmpty(input)) ||\n (isArray(input) && input.length === 0)\n ) {\n input = undefined;\n }\n // object construction must be done this way.\n // https://github.com/moment/moment/issues/1423\n c._isAMomentObject = true;\n c._useUTC = c._isUTC = isUTC;\n c._l = locale;\n c._i = input;\n c._f = format;\n c._strict = strict;\n\n return createFromConfig(c);\n }\n\n function createLocal(input, format, locale, strict) {\n return createLocalOrUTC(input, format, locale, strict, false);\n }\n\n var prototypeMin = deprecate(\n 'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',\n function () {\n var other = createLocal.apply(null, arguments);\n if (this.isValid() && other.isValid()) {\n return other < this ? this : other;\n } else {\n return createInvalid();\n }\n }\n ),\n prototypeMax = deprecate(\n 'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',\n function () {\n var other = createLocal.apply(null, arguments);\n if (this.isValid() && other.isValid()) {\n return other > this ? this : other;\n } else {\n return createInvalid();\n }\n }\n );\n\n // Pick a moment m from moments so that m[fn](other) is true for all\n // other. This relies on the function fn to be transitive.\n //\n // moments should either be an array of moment objects or an array, whose\n // first element is an array of moment objects.\n function pickBy(fn, moments) {\n var res, i;\n if (moments.length === 1 && isArray(moments[0])) {\n moments = moments[0];\n }\n if (!moments.length) {\n return createLocal();\n }\n res = moments[0];\n for (i = 1; i < moments.length; ++i) {\n if (!moments[i].isValid() || moments[i][fn](res)) {\n res = moments[i];\n }\n }\n return res;\n }\n\n // TODO: Use [].sort instead?\n function min() {\n var args = [].slice.call(arguments, 0);\n\n return pickBy('isBefore', args);\n }\n\n function max() {\n var args = [].slice.call(arguments, 0);\n\n return pickBy('isAfter', args);\n }\n\n var now = function () {\n return Date.now ? Date.now() : +new Date();\n };\n\n var ordering = [\n 'year',\n 'quarter',\n 'month',\n 'week',\n 'day',\n 'hour',\n 'minute',\n 'second',\n 'millisecond',\n ];\n\n function isDurationValid(m) {\n var key,\n unitHasDecimal = false,\n i;\n for (key in m) {\n if (\n hasOwnProp(m, key) &&\n !(\n indexOf.call(ordering, key) !== -1 &&\n (m[key] == null || !isNaN(m[key]))\n )\n ) {\n return false;\n }\n }\n\n for (i = 0; i < ordering.length; ++i) {\n if (m[ordering[i]]) {\n if (unitHasDecimal) {\n return false; // only allow non-integers for smallest unit\n }\n if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {\n unitHasDecimal = true;\n }\n }\n }\n\n return true;\n }\n\n function isValid$1() {\n return this._isValid;\n }\n\n function createInvalid$1() {\n return createDuration(NaN);\n }\n\n function Duration(duration) {\n var normalizedInput = normalizeObjectUnits(duration),\n years = normalizedInput.year || 0,\n quarters = normalizedInput.quarter || 0,\n months = normalizedInput.month || 0,\n weeks = normalizedInput.week || normalizedInput.isoWeek || 0,\n days = normalizedInput.day || 0,\n hours = normalizedInput.hour || 0,\n minutes = normalizedInput.minute || 0,\n seconds = normalizedInput.second || 0,\n milliseconds = normalizedInput.millisecond || 0;\n\n this._isValid = isDurationValid(normalizedInput);\n\n // representation for dateAddRemove\n this._milliseconds =\n +milliseconds +\n seconds * 1e3 + // 1000\n minutes * 6e4 + // 1000 * 60\n hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978\n // Because of dateAddRemove treats 24 hours as different from a\n // day when working around DST, we need to store them separately\n this._days = +days + weeks * 7;\n // It is impossible to translate months into days without knowing\n // which months you are are talking about, so we have to store\n // it separately.\n this._months = +months + quarters * 3 + years * 12;\n\n this._data = {};\n\n this._locale = getLocale();\n\n this._bubble();\n }\n\n function isDuration(obj) {\n return obj instanceof Duration;\n }\n\n function absRound(number) {\n if (number < 0) {\n return Math.round(-1 * number) * -1;\n } else {\n return Math.round(number);\n }\n }\n\n // compare two arrays, return the number of differences\n function compareArrays(array1, array2, dontConvert) {\n var len = Math.min(array1.length, array2.length),\n lengthDiff = Math.abs(array1.length - array2.length),\n diffs = 0,\n i;\n for (i = 0; i < len; i++) {\n if (\n (dontConvert && array1[i] !== array2[i]) ||\n (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))\n ) {\n diffs++;\n }\n }\n return diffs + lengthDiff;\n }\n\n // FORMATTING\n\n function offset(token, separator) {\n addFormatToken(token, 0, 0, function () {\n var offset = this.utcOffset(),\n sign = '+';\n if (offset < 0) {\n offset = -offset;\n sign = '-';\n }\n return (\n sign +\n zeroFill(~~(offset / 60), 2) +\n separator +\n zeroFill(~~offset % 60, 2)\n );\n });\n }\n\n offset('Z', ':');\n offset('ZZ', '');\n\n // PARSING\n\n addRegexToken('Z', matchShortOffset);\n addRegexToken('ZZ', matchShortOffset);\n addParseToken(['Z', 'ZZ'], function (input, array, config) {\n config._useUTC = true;\n config._tzm = offsetFromString(matchShortOffset, input);\n });\n\n // HELPERS\n\n // timezone chunker\n // '+10:00' > ['10', '00']\n // '-1530' > ['-15', '30']\n var chunkOffset = /([\\+\\-]|\\d\\d)/gi;\n\n function offsetFromString(matcher, string) {\n var matches = (string || '').match(matcher),\n chunk,\n parts,\n minutes;\n\n if (matches === null) {\n return null;\n }\n\n chunk = matches[matches.length - 1] || [];\n parts = (chunk + '').match(chunkOffset) || ['-', 0, 0];\n minutes = +(parts[1] * 60) + toInt(parts[2]);\n\n return minutes === 0 ? 0 : parts[0] === '+' ? minutes : -minutes;\n }\n\n // Return a moment from input, that is local/utc/zone equivalent to model.\n function cloneWithOffset(input, model) {\n var res, diff;\n if (model._isUTC) {\n res = model.clone();\n diff =\n (isMoment(input) || isDate(input)\n ? input.valueOf()\n : createLocal(input).valueOf()) - res.valueOf();\n // Use low-level api, because this fn is low-level api.\n res._d.setTime(res._d.valueOf() + diff);\n hooks.updateOffset(res, false);\n return res;\n } else {\n return createLocal(input).local();\n }\n }\n\n function getDateOffset(m) {\n // On Firefox.24 Date#getTimezoneOffset returns a floating point.\n // https://github.com/moment/moment/pull/1871\n return -Math.round(m._d.getTimezoneOffset());\n }\n\n // HOOKS\n\n // This function will be called whenever a moment is mutated.\n // It is intended to keep the offset in sync with the timezone.\n hooks.updateOffset = function () {};\n\n // MOMENTS\n\n // keepLocalTime = true means only change the timezone, without\n // affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->\n // 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset\n // +0200, so we adjust the time as needed, to be valid.\n //\n // Keeping the time actually adds/subtracts (one hour)\n // from the actual represented time. That is why we call updateOffset\n // a second time. In case it wants us to change the offset again\n // _changeInProgress == true case, then we have to adjust, because\n // there is no such time in the given timezone.\n function getSetOffset(input, keepLocalTime, keepMinutes) {\n var offset = this._offset || 0,\n localAdjust;\n if (!this.isValid()) {\n return input != null ? this : NaN;\n }\n if (input != null) {\n if (typeof input === 'string') {\n input = offsetFromString(matchShortOffset, input);\n if (input === null) {\n return this;\n }\n } else if (Math.abs(input) < 16 && !keepMinutes) {\n input = input * 60;\n }\n if (!this._isUTC && keepLocalTime) {\n localAdjust = getDateOffset(this);\n }\n this._offset = input;\n this._isUTC = true;\n if (localAdjust != null) {\n this.add(localAdjust, 'm');\n }\n if (offset !== input) {\n if (!keepLocalTime || this._changeInProgress) {\n addSubtract(\n this,\n createDuration(input - offset, 'm'),\n 1,\n false\n );\n } else if (!this._changeInProgress) {\n this._changeInProgress = true;\n hooks.updateOffset(this, true);\n this._changeInProgress = null;\n }\n }\n return this;\n } else {\n return this._isUTC ? offset : getDateOffset(this);\n }\n }\n\n function getSetZone(input, keepLocalTime) {\n if (input != null) {\n if (typeof input !== 'string') {\n input = -input;\n }\n\n this.utcOffset(input, keepLocalTime);\n\n return this;\n } else {\n return -this.utcOffset();\n }\n }\n\n function setOffsetToUTC(keepLocalTime) {\n return this.utcOffset(0, keepLocalTime);\n }\n\n function setOffsetToLocal(keepLocalTime) {\n if (this._isUTC) {\n this.utcOffset(0, keepLocalTime);\n this._isUTC = false;\n\n if (keepLocalTime) {\n this.subtract(getDateOffset(this), 'm');\n }\n }\n return this;\n }\n\n function setOffsetToParsedOffset() {\n if (this._tzm != null) {\n this.utcOffset(this._tzm, false, true);\n } else if (typeof this._i === 'string') {\n var tZone = offsetFromString(matchOffset, this._i);\n if (tZone != null) {\n this.utcOffset(tZone);\n } else {\n this.utcOffset(0, true);\n }\n }\n return this;\n }\n\n function hasAlignedHourOffset(input) {\n if (!this.isValid()) {\n return false;\n }\n input = input ? createLocal(input).utcOffset() : 0;\n\n return (this.utcOffset() - input) % 60 === 0;\n }\n\n function isDaylightSavingTime() {\n return (\n this.utcOffset() > this.clone().month(0).utcOffset() ||\n this.utcOffset() > this.clone().month(5).utcOffset()\n );\n }\n\n function isDaylightSavingTimeShifted() {\n if (!isUndefined(this._isDSTShifted)) {\n return this._isDSTShifted;\n }\n\n var c = {},\n other;\n\n copyConfig(c, this);\n c = prepareConfig(c);\n\n if (c._a) {\n other = c._isUTC ? createUTC(c._a) : createLocal(c._a);\n this._isDSTShifted =\n this.isValid() && compareArrays(c._a, other.toArray()) > 0;\n } else {\n this._isDSTShifted = false;\n }\n\n return this._isDSTShifted;\n }\n\n function isLocal() {\n return this.isValid() ? !this._isUTC : false;\n }\n\n function isUtcOffset() {\n return this.isValid() ? this._isUTC : false;\n }\n\n function isUtc() {\n return this.isValid() ? this._isUTC && this._offset === 0 : false;\n }\n\n // ASP.NET json date format regex\n var aspNetRegex = /^(-|\\+)?(?:(\\d*)[. ])?(\\d+):(\\d+)(?::(\\d+)(\\.\\d*)?)?$/,\n // from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html\n // somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere\n // and further modified to allow for strings containing both week and day\n isoRegex = /^(-|\\+)?P(?:([-+]?[0-9,.]*)Y)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)W)?(?:([-+]?[0-9,.]*)D)?(?:T(?:([-+]?[0-9,.]*)H)?(?:([-+]?[0-9,.]*)M)?(?:([-+]?[0-9,.]*)S)?)?$/;\n\n function createDuration(input, key) {\n var duration = input,\n // matching against regexp is expensive, do it on demand\n match = null,\n sign,\n ret,\n diffRes;\n\n if (isDuration(input)) {\n duration = {\n ms: input._milliseconds,\n d: input._days,\n M: input._months,\n };\n } else if (isNumber(input) || !isNaN(+input)) {\n duration = {};\n if (key) {\n duration[key] = +input;\n } else {\n duration.milliseconds = +input;\n }\n } else if ((match = aspNetRegex.exec(input))) {\n sign = match[1] === '-' ? -1 : 1;\n duration = {\n y: 0,\n d: toInt(match[DATE]) * sign,\n h: toInt(match[HOUR]) * sign,\n m: toInt(match[MINUTE]) * sign,\n s: toInt(match[SECOND]) * sign,\n ms: toInt(absRound(match[MILLISECOND] * 1000)) * sign, // the millisecond decimal point is included in the match\n };\n } else if ((match = isoRegex.exec(input))) {\n sign = match[1] === '-' ? -1 : 1;\n duration = {\n y: parseIso(match[2], sign),\n M: parseIso(match[3], sign),\n w: parseIso(match[4], sign),\n d: parseIso(match[5], sign),\n h: parseIso(match[6], sign),\n m: parseIso(match[7], sign),\n s: parseIso(match[8], sign),\n };\n } else if (duration == null) {\n // checks for null or undefined\n duration = {};\n } else if (\n typeof duration === 'object' &&\n ('from' in duration || 'to' in duration)\n ) {\n diffRes = momentsDifference(\n createLocal(duration.from),\n createLocal(duration.to)\n );\n\n duration = {};\n duration.ms = diffRes.milliseconds;\n duration.M = diffRes.months;\n }\n\n ret = new Duration(duration);\n\n if (isDuration(input) && hasOwnProp(input, '_locale')) {\n ret._locale = input._locale;\n }\n\n if (isDuration(input) && hasOwnProp(input, '_isValid')) {\n ret._isValid = input._isValid;\n }\n\n return ret;\n }\n\n createDuration.fn = Duration.prototype;\n createDuration.invalid = createInvalid$1;\n\n function parseIso(inp, sign) {\n // We'd normally use ~~inp for this, but unfortunately it also\n // converts floats to ints.\n // inp may be undefined, so careful calling replace on it.\n var res = inp && parseFloat(inp.replace(',', '.'));\n // apply sign while we're at it\n return (isNaN(res) ? 0 : res) * sign;\n }\n\n function positiveMomentsDifference(base, other) {\n var res = {};\n\n res.months =\n other.month() - base.month() + (other.year() - base.year()) * 12;\n if (base.clone().add(res.months, 'M').isAfter(other)) {\n --res.months;\n }\n\n res.milliseconds = +other - +base.clone().add(res.months, 'M');\n\n return res;\n }\n\n function momentsDifference(base, other) {\n var res;\n if (!(base.isValid() && other.isValid())) {\n return { milliseconds: 0, months: 0 };\n }\n\n other = cloneWithOffset(other, base);\n if (base.isBefore(other)) {\n res = positiveMomentsDifference(base, other);\n } else {\n res = positiveMomentsDifference(other, base);\n res.milliseconds = -res.milliseconds;\n res.months = -res.months;\n }\n\n return res;\n }\n\n // TODO: remove 'name' arg after deprecation is removed\n function createAdder(direction, name) {\n return function (val, period) {\n var dur, tmp;\n //invert the arguments, but complain about it\n if (period !== null && !isNaN(+period)) {\n deprecateSimple(\n name,\n 'moment().' +\n name +\n '(period, number) is deprecated. Please use moment().' +\n name +\n '(number, period). ' +\n 'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.'\n );\n tmp = val;\n val = period;\n period = tmp;\n }\n\n dur = createDuration(val, period);\n addSubtract(this, dur, direction);\n return this;\n };\n }\n\n function addSubtract(mom, duration, isAdding, updateOffset) {\n var milliseconds = duration._milliseconds,\n days = absRound(duration._days),\n months = absRound(duration._months);\n\n if (!mom.isValid()) {\n // No op\n return;\n }\n\n updateOffset = updateOffset == null ? true : updateOffset;\n\n if (months) {\n setMonth(mom, get(mom, 'Month') + months * isAdding);\n }\n if (days) {\n set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);\n }\n if (milliseconds) {\n mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);\n }\n if (updateOffset) {\n hooks.updateOffset(mom, days || months);\n }\n }\n\n var add = createAdder(1, 'add'),\n subtract = createAdder(-1, 'subtract');\n\n function isString(input) {\n return typeof input === 'string' || input instanceof String;\n }\n\n // type MomentInput = Moment | Date | string | number | (number | string)[] | MomentInputObject | void; // null | undefined\n function isMomentInput(input) {\n return (\n isMoment(input) ||\n isDate(input) ||\n isString(input) ||\n isNumber(input) ||\n isNumberOrStringArray(input) ||\n isMomentInputObject(input) ||\n input === null ||\n input === undefined\n );\n }\n\n function isMomentInputObject(input) {\n var objectTest = isObject(input) && !isObjectEmpty(input),\n propertyTest = false,\n properties = [\n 'years',\n 'year',\n 'y',\n 'months',\n 'month',\n 'M',\n 'days',\n 'day',\n 'd',\n 'dates',\n 'date',\n 'D',\n 'hours',\n 'hour',\n 'h',\n 'minutes',\n 'minute',\n 'm',\n 'seconds',\n 'second',\n 's',\n 'milliseconds',\n 'millisecond',\n 'ms',\n ],\n i,\n property;\n\n for (i = 0; i < properties.length; i += 1) {\n property = properties[i];\n propertyTest = propertyTest || hasOwnProp(input, property);\n }\n\n return objectTest && propertyTest;\n }\n\n function isNumberOrStringArray(input) {\n var arrayTest = isArray(input),\n dataTypeTest = false;\n if (arrayTest) {\n dataTypeTest =\n input.filter(function (item) {\n return !isNumber(item) && isString(input);\n }).length === 0;\n }\n return arrayTest && dataTypeTest;\n }\n\n function isCalendarSpec(input) {\n var objectTest = isObject(input) && !isObjectEmpty(input),\n propertyTest = false,\n properties = [\n 'sameDay',\n 'nextDay',\n 'lastDay',\n 'nextWeek',\n 'lastWeek',\n 'sameElse',\n ],\n i,\n property;\n\n for (i = 0; i < properties.length; i += 1) {\n property = properties[i];\n propertyTest = propertyTest || hasOwnProp(input, property);\n }\n\n return objectTest && propertyTest;\n }\n\n function getCalendarFormat(myMoment, now) {\n var diff = myMoment.diff(now, 'days', true);\n return diff < -6\n ? 'sameElse'\n : diff < -1\n ? 'lastWeek'\n : diff < 0\n ? 'lastDay'\n : diff < 1\n ? 'sameDay'\n : diff < 2\n ? 'nextDay'\n : diff < 7\n ? 'nextWeek'\n : 'sameElse';\n }\n\n function calendar$1(time, formats) {\n // Support for single parameter, formats only overload to the calendar function\n if (arguments.length === 1) {\n if (!arguments[0]) {\n time = undefined;\n formats = undefined;\n } else if (isMomentInput(arguments[0])) {\n time = arguments[0];\n formats = undefined;\n } else if (isCalendarSpec(arguments[0])) {\n formats = arguments[0];\n time = undefined;\n }\n }\n // We want to compare the start of today, vs this.\n // Getting start-of-today depends on whether we're local/utc/offset or not.\n var now = time || createLocal(),\n sod = cloneWithOffset(now, this).startOf('day'),\n format = hooks.calendarFormat(this, sod) || 'sameElse',\n output =\n formats &&\n (isFunction(formats[format])\n ? formats[format].call(this, now)\n : formats[format]);\n\n return this.format(\n output || this.localeData().calendar(format, this, createLocal(now))\n );\n }\n\n function clone() {\n return new Moment(this);\n }\n\n function isAfter(input, units) {\n var localInput = isMoment(input) ? input : createLocal(input);\n if (!(this.isValid() && localInput.isValid())) {\n return false;\n }\n units = normalizeUnits(units) || 'millisecond';\n if (units === 'millisecond') {\n return this.valueOf() > localInput.valueOf();\n } else {\n return localInput.valueOf() < this.clone().startOf(units).valueOf();\n }\n }\n\n function isBefore(input, units) {\n var localInput = isMoment(input) ? input : createLocal(input);\n if (!(this.isValid() && localInput.isValid())) {\n return false;\n }\n units = normalizeUnits(units) || 'millisecond';\n if (units === 'millisecond') {\n return this.valueOf() < localInput.valueOf();\n } else {\n return this.clone().endOf(units).valueOf() < localInput.valueOf();\n }\n }\n\n function isBetween(from, to, units, inclusivity) {\n var localFrom = isMoment(from) ? from : createLocal(from),\n localTo = isMoment(to) ? to : createLocal(to);\n if (!(this.isValid() && localFrom.isValid() && localTo.isValid())) {\n return false;\n }\n inclusivity = inclusivity || '()';\n return (\n (inclusivity[0] === '('\n ? this.isAfter(localFrom, units)\n : !this.isBefore(localFrom, units)) &&\n (inclusivity[1] === ')'\n ? this.isBefore(localTo, units)\n : !this.isAfter(localTo, units))\n );\n }\n\n function isSame(input, units) {\n var localInput = isMoment(input) ? input : createLocal(input),\n inputMs;\n if (!(this.isValid() && localInput.isValid())) {\n return false;\n }\n units = normalizeUnits(units) || 'millisecond';\n if (units === 'millisecond') {\n return this.valueOf() === localInput.valueOf();\n } else {\n inputMs = localInput.valueOf();\n return (\n this.clone().startOf(units).valueOf() <= inputMs &&\n inputMs <= this.clone().endOf(units).valueOf()\n );\n }\n }\n\n function isSameOrAfter(input, units) {\n return this.isSame(input, units) || this.isAfter(input, units);\n }\n\n function isSameOrBefore(input, units) {\n return this.isSame(input, units) || this.isBefore(input, units);\n }\n\n function diff(input, units, asFloat) {\n var that, zoneDelta, output;\n\n if (!this.isValid()) {\n return NaN;\n }\n\n that = cloneWithOffset(input, this);\n\n if (!that.isValid()) {\n return NaN;\n }\n\n zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;\n\n units = normalizeUnits(units);\n\n switch (units) {\n case 'year':\n output = monthDiff(this, that) / 12;\n break;\n case 'month':\n output = monthDiff(this, that);\n break;\n case 'quarter':\n output = monthDiff(this, that) / 3;\n break;\n case 'second':\n output = (this - that) / 1e3;\n break; // 1000\n case 'minute':\n output = (this - that) / 6e4;\n break; // 1000 * 60\n case 'hour':\n output = (this - that) / 36e5;\n break; // 1000 * 60 * 60\n case 'day':\n output = (this - that - zoneDelta) / 864e5;\n break; // 1000 * 60 * 60 * 24, negate dst\n case 'week':\n output = (this - that - zoneDelta) / 6048e5;\n break; // 1000 * 60 * 60 * 24 * 7, negate dst\n default:\n output = this - that;\n }\n\n return asFloat ? output : absFloor(output);\n }\n\n function monthDiff(a, b) {\n if (a.date() < b.date()) {\n // end-of-month calculations work correct when the start month has more\n // days than the end month.\n return -monthDiff(b, a);\n }\n // difference in months\n var wholeMonthDiff = (b.year() - a.year()) * 12 + (b.month() - a.month()),\n // b is in (anchor - 1 month, anchor + 1 month)\n anchor = a.clone().add(wholeMonthDiff, 'months'),\n anchor2,\n adjust;\n\n if (b - anchor < 0) {\n anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');\n // linear across the month\n adjust = (b - anchor) / (anchor - anchor2);\n } else {\n anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');\n // linear across the month\n adjust = (b - anchor) / (anchor2 - anchor);\n }\n\n //check for negative zero, return zero if negative zero\n return -(wholeMonthDiff + adjust) || 0;\n }\n\n hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';\n hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';\n\n function toString() {\n return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');\n }\n\n function toISOString(keepOffset) {\n if (!this.isValid()) {\n return null;\n }\n var utc = keepOffset !== true,\n m = utc ? this.clone().utc() : this;\n if (m.year() < 0 || m.year() > 9999) {\n return formatMoment(\n m,\n utc\n ? 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]'\n : 'YYYYYY-MM-DD[T]HH:mm:ss.SSSZ'\n );\n }\n if (isFunction(Date.prototype.toISOString)) {\n // native implementation is ~50x faster, use it when we can\n if (utc) {\n return this.toDate().toISOString();\n } else {\n return new Date(this.valueOf() + this.utcOffset() * 60 * 1000)\n .toISOString()\n .replace('Z', formatMoment(m, 'Z'));\n }\n }\n return formatMoment(\n m,\n utc ? 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]' : 'YYYY-MM-DD[T]HH:mm:ss.SSSZ'\n );\n }\n\n /**\n * Return a human readable representation of a moment that can\n * also be evaluated to get a new moment which is the same\n *\n * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects\n */\n function inspect() {\n if (!this.isValid()) {\n return 'moment.invalid(/* ' + this._i + ' */)';\n }\n var func = 'moment',\n zone = '',\n prefix,\n year,\n datetime,\n suffix;\n if (!this.isLocal()) {\n func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';\n zone = 'Z';\n }\n prefix = '[' + func + '(\"]';\n year = 0 <= this.year() && this.year() <= 9999 ? 'YYYY' : 'YYYYYY';\n datetime = '-MM-DD[T]HH:mm:ss.SSS';\n suffix = zone + '[\")]';\n\n return this.format(prefix + year + datetime + suffix);\n }\n\n function format(inputString) {\n if (!inputString) {\n inputString = this.isUtc()\n ? hooks.defaultFormatUtc\n : hooks.defaultFormat;\n }\n var output = formatMoment(this, inputString);\n return this.localeData().postformat(output);\n }\n\n function from(time, withoutSuffix) {\n if (\n this.isValid() &&\n ((isMoment(time) && time.isValid()) || createLocal(time).isValid())\n ) {\n return createDuration({ to: this, from: time })\n .locale(this.locale())\n .humanize(!withoutSuffix);\n } else {\n return this.localeData().invalidDate();\n }\n }\n\n function fromNow(withoutSuffix) {\n return this.from(createLocal(), withoutSuffix);\n }\n\n function to(time, withoutSuffix) {\n if (\n this.isValid() &&\n ((isMoment(time) && time.isValid()) || createLocal(time).isValid())\n ) {\n return createDuration({ from: this, to: time })\n .locale(this.locale())\n .humanize(!withoutSuffix);\n } else {\n return this.localeData().invalidDate();\n }\n }\n\n function toNow(withoutSuffix) {\n return this.to(createLocal(), withoutSuffix);\n }\n\n // If passed a locale key, it will set the locale for this\n // instance. Otherwise, it will return the locale configuration\n // variables for this instance.\n function locale(key) {\n var newLocaleData;\n\n if (key === undefined) {\n return this._locale._abbr;\n } else {\n newLocaleData = getLocale(key);\n if (newLocaleData != null) {\n this._locale = newLocaleData;\n }\n return this;\n }\n }\n\n var lang = deprecate(\n 'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',\n function (key) {\n if (key === undefined) {\n return this.localeData();\n } else {\n return this.locale(key);\n }\n }\n );\n\n function localeData() {\n return this._locale;\n }\n\n var MS_PER_SECOND = 1000,\n MS_PER_MINUTE = 60 * MS_PER_SECOND,\n MS_PER_HOUR = 60 * MS_PER_MINUTE,\n MS_PER_400_YEARS = (365 * 400 + 97) * 24 * MS_PER_HOUR;\n\n // actual modulo - handles negative numbers (for dates before 1970):\n function mod$1(dividend, divisor) {\n return ((dividend % divisor) + divisor) % divisor;\n }\n\n function localStartOfDate(y, m, d) {\n // the date constructor remaps years 0-99 to 1900-1999\n if (y < 100 && y >= 0) {\n // preserve leap years using a full 400 year cycle, then reset\n return new Date(y + 400, m, d) - MS_PER_400_YEARS;\n } else {\n return new Date(y, m, d).valueOf();\n }\n }\n\n function utcStartOfDate(y, m, d) {\n // Date.UTC remaps years 0-99 to 1900-1999\n if (y < 100 && y >= 0) {\n // preserve leap years using a full 400 year cycle, then reset\n return Date.UTC(y + 400, m, d) - MS_PER_400_YEARS;\n } else {\n return Date.UTC(y, m, d);\n }\n }\n\n function startOf(units) {\n var time, startOfDate;\n units = normalizeUnits(units);\n if (units === undefined || units === 'millisecond' || !this.isValid()) {\n return this;\n }\n\n startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;\n\n switch (units) {\n case 'year':\n time = startOfDate(this.year(), 0, 1);\n break;\n case 'quarter':\n time = startOfDate(\n this.year(),\n this.month() - (this.month() % 3),\n 1\n );\n break;\n case 'month':\n time = startOfDate(this.year(), this.month(), 1);\n break;\n case 'week':\n time = startOfDate(\n this.year(),\n this.month(),\n this.date() - this.weekday()\n );\n break;\n case 'isoWeek':\n time = startOfDate(\n this.year(),\n this.month(),\n this.date() - (this.isoWeekday() - 1)\n );\n break;\n case 'day':\n case 'date':\n time = startOfDate(this.year(), this.month(), this.date());\n break;\n case 'hour':\n time = this._d.valueOf();\n time -= mod$1(\n time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE),\n MS_PER_HOUR\n );\n break;\n case 'minute':\n time = this._d.valueOf();\n time -= mod$1(time, MS_PER_MINUTE);\n break;\n case 'second':\n time = this._d.valueOf();\n time -= mod$1(time, MS_PER_SECOND);\n break;\n }\n\n this._d.setTime(time);\n hooks.updateOffset(this, true);\n return this;\n }\n\n function endOf(units) {\n var time, startOfDate;\n units = normalizeUnits(units);\n if (units === undefined || units === 'millisecond' || !this.isValid()) {\n return this;\n }\n\n startOfDate = this._isUTC ? utcStartOfDate : localStartOfDate;\n\n switch (units) {\n case 'year':\n time = startOfDate(this.year() + 1, 0, 1) - 1;\n break;\n case 'quarter':\n time =\n startOfDate(\n this.year(),\n this.month() - (this.month() % 3) + 3,\n 1\n ) - 1;\n break;\n case 'month':\n time = startOfDate(this.year(), this.month() + 1, 1) - 1;\n break;\n case 'week':\n time =\n startOfDate(\n this.year(),\n this.month(),\n this.date() - this.weekday() + 7\n ) - 1;\n break;\n case 'isoWeek':\n time =\n startOfDate(\n this.year(),\n this.month(),\n this.date() - (this.isoWeekday() - 1) + 7\n ) - 1;\n break;\n case 'day':\n case 'date':\n time = startOfDate(this.year(), this.month(), this.date() + 1) - 1;\n break;\n case 'hour':\n time = this._d.valueOf();\n time +=\n MS_PER_HOUR -\n mod$1(\n time + (this._isUTC ? 0 : this.utcOffset() * MS_PER_MINUTE),\n MS_PER_HOUR\n ) -\n 1;\n break;\n case 'minute':\n time = this._d.valueOf();\n time += MS_PER_MINUTE - mod$1(time, MS_PER_MINUTE) - 1;\n break;\n case 'second':\n time = this._d.valueOf();\n time += MS_PER_SECOND - mod$1(time, MS_PER_SECOND) - 1;\n break;\n }\n\n this._d.setTime(time);\n hooks.updateOffset(this, true);\n return this;\n }\n\n function valueOf() {\n return this._d.valueOf() - (this._offset || 0) * 60000;\n }\n\n function unix() {\n return Math.floor(this.valueOf() / 1000);\n }\n\n function toDate() {\n return new Date(this.valueOf());\n }\n\n function toArray() {\n var m = this;\n return [\n m.year(),\n m.month(),\n m.date(),\n m.hour(),\n m.minute(),\n m.second(),\n m.millisecond(),\n ];\n }\n\n function toObject() {\n var m = this;\n return {\n years: m.year(),\n months: m.month(),\n date: m.date(),\n hours: m.hours(),\n minutes: m.minutes(),\n seconds: m.seconds(),\n milliseconds: m.milliseconds(),\n };\n }\n\n function toJSON() {\n // new Date(NaN).toJSON() === null\n return this.isValid() ? this.toISOString() : null;\n }\n\n function isValid$2() {\n return isValid(this);\n }\n\n function parsingFlags() {\n return extend({}, getParsingFlags(this));\n }\n\n function invalidAt() {\n return getParsingFlags(this).overflow;\n }\n\n function creationData() {\n return {\n input: this._i,\n format: this._f,\n locale: this._locale,\n isUTC: this._isUTC,\n strict: this._strict,\n };\n }\n\n addFormatToken('N', 0, 0, 'eraAbbr');\n addFormatToken('NN', 0, 0, 'eraAbbr');\n addFormatToken('NNN', 0, 0, 'eraAbbr');\n addFormatToken('NNNN', 0, 0, 'eraName');\n addFormatToken('NNNNN', 0, 0, 'eraNarrow');\n\n addFormatToken('y', ['y', 1], 'yo', 'eraYear');\n addFormatToken('y', ['yy', 2], 0, 'eraYear');\n addFormatToken('y', ['yyy', 3], 0, 'eraYear');\n addFormatToken('y', ['yyyy', 4], 0, 'eraYear');\n\n addRegexToken('N', matchEraAbbr);\n addRegexToken('NN', matchEraAbbr);\n addRegexToken('NNN', matchEraAbbr);\n addRegexToken('NNNN', matchEraName);\n addRegexToken('NNNNN', matchEraNarrow);\n\n addParseToken(['N', 'NN', 'NNN', 'NNNN', 'NNNNN'], function (\n input,\n array,\n config,\n token\n ) {\n var era = config._locale.erasParse(input, token, config._strict);\n if (era) {\n getParsingFlags(config).era = era;\n } else {\n getParsingFlags(config).invalidEra = input;\n }\n });\n\n addRegexToken('y', matchUnsigned);\n addRegexToken('yy', matchUnsigned);\n addRegexToken('yyy', matchUnsigned);\n addRegexToken('yyyy', matchUnsigned);\n addRegexToken('yo', matchEraYearOrdinal);\n\n addParseToken(['y', 'yy', 'yyy', 'yyyy'], YEAR);\n addParseToken(['yo'], function (input, array, config, token) {\n var match;\n if (config._locale._eraYearOrdinalRegex) {\n match = input.match(config._locale._eraYearOrdinalRegex);\n }\n\n if (config._locale.eraYearOrdinalParse) {\n array[YEAR] = config._locale.eraYearOrdinalParse(input, match);\n } else {\n array[YEAR] = parseInt(input, 10);\n }\n });\n\n function localeEras(m, format) {\n var i,\n l,\n date,\n eras = this._eras || getLocale('en')._eras;\n for (i = 0, l = eras.length; i < l; ++i) {\n switch (typeof eras[i].since) {\n case 'string':\n // truncate time\n date = hooks(eras[i].since).startOf('day');\n eras[i].since = date.valueOf();\n break;\n }\n\n switch (typeof eras[i].until) {\n case 'undefined':\n eras[i].until = +Infinity;\n break;\n case 'string':\n // truncate time\n date = hooks(eras[i].until).startOf('day').valueOf();\n eras[i].until = date.valueOf();\n break;\n }\n }\n return eras;\n }\n\n function localeErasParse(eraName, format, strict) {\n var i,\n l,\n eras = this.eras(),\n name,\n abbr,\n narrow;\n eraName = eraName.toUpperCase();\n\n for (i = 0, l = eras.length; i < l; ++i) {\n name = eras[i].name.toUpperCase();\n abbr = eras[i].abbr.toUpperCase();\n narrow = eras[i].narrow.toUpperCase();\n\n if (strict) {\n switch (format) {\n case 'N':\n case 'NN':\n case 'NNN':\n if (abbr === eraName) {\n return eras[i];\n }\n break;\n\n case 'NNNN':\n if (name === eraName) {\n return eras[i];\n }\n break;\n\n case 'NNNNN':\n if (narrow === eraName) {\n return eras[i];\n }\n break;\n }\n } else if ([name, abbr, narrow].indexOf(eraName) >= 0) {\n return eras[i];\n }\n }\n }\n\n function localeErasConvertYear(era, year) {\n var dir = era.since <= era.until ? +1 : -1;\n if (year === undefined) {\n return hooks(era.since).year();\n } else {\n return hooks(era.since).year() + (year - era.offset) * dir;\n }\n }\n\n function getEraName() {\n var i,\n l,\n val,\n eras = this.localeData().eras();\n for (i = 0, l = eras.length; i < l; ++i) {\n // truncate time\n val = this.clone().startOf('day').valueOf();\n\n if (eras[i].since <= val && val <= eras[i].until) {\n return eras[i].name;\n }\n if (eras[i].until <= val && val <= eras[i].since) {\n return eras[i].name;\n }\n }\n\n return '';\n }\n\n function getEraNarrow() {\n var i,\n l,\n val,\n eras = this.localeData().eras();\n for (i = 0, l = eras.length; i < l; ++i) {\n // truncate time\n val = this.clone().startOf('day').valueOf();\n\n if (eras[i].since <= val && val <= eras[i].until) {\n return eras[i].narrow;\n }\n if (eras[i].until <= val && val <= eras[i].since) {\n return eras[i].narrow;\n }\n }\n\n return '';\n }\n\n function getEraAbbr() {\n var i,\n l,\n val,\n eras = this.localeData().eras();\n for (i = 0, l = eras.length; i < l; ++i) {\n // truncate time\n val = this.clone().startOf('day').valueOf();\n\n if (eras[i].since <= val && val <= eras[i].until) {\n return eras[i].abbr;\n }\n if (eras[i].until <= val && val <= eras[i].since) {\n return eras[i].abbr;\n }\n }\n\n return '';\n }\n\n function getEraYear() {\n var i,\n l,\n dir,\n val,\n eras = this.localeData().eras();\n for (i = 0, l = eras.length; i < l; ++i) {\n dir = eras[i].since <= eras[i].until ? +1 : -1;\n\n // truncate time\n val = this.clone().startOf('day').valueOf();\n\n if (\n (eras[i].since <= val && val <= eras[i].until) ||\n (eras[i].until <= val && val <= eras[i].since)\n ) {\n return (\n (this.year() - hooks(eras[i].since).year()) * dir +\n eras[i].offset\n );\n }\n }\n\n return this.year();\n }\n\n function erasNameRegex(isStrict) {\n if (!hasOwnProp(this, '_erasNameRegex')) {\n computeErasParse.call(this);\n }\n return isStrict ? this._erasNameRegex : this._erasRegex;\n }\n\n function erasAbbrRegex(isStrict) {\n if (!hasOwnProp(this, '_erasAbbrRegex')) {\n computeErasParse.call(this);\n }\n return isStrict ? this._erasAbbrRegex : this._erasRegex;\n }\n\n function erasNarrowRegex(isStrict) {\n if (!hasOwnProp(this, '_erasNarrowRegex')) {\n computeErasParse.call(this);\n }\n return isStrict ? this._erasNarrowRegex : this._erasRegex;\n }\n\n function matchEraAbbr(isStrict, locale) {\n return locale.erasAbbrRegex(isStrict);\n }\n\n function matchEraName(isStrict, locale) {\n return locale.erasNameRegex(isStrict);\n }\n\n function matchEraNarrow(isStrict, locale) {\n return locale.erasNarrowRegex(isStrict);\n }\n\n function matchEraYearOrdinal(isStrict, locale) {\n return locale._eraYearOrdinalRegex || matchUnsigned;\n }\n\n function computeErasParse() {\n var abbrPieces = [],\n namePieces = [],\n narrowPieces = [],\n mixedPieces = [],\n i,\n l,\n eras = this.eras();\n\n for (i = 0, l = eras.length; i < l; ++i) {\n namePieces.push(regexEscape(eras[i].name));\n abbrPieces.push(regexEscape(eras[i].abbr));\n narrowPieces.push(regexEscape(eras[i].narrow));\n\n mixedPieces.push(regexEscape(eras[i].name));\n mixedPieces.push(regexEscape(eras[i].abbr));\n mixedPieces.push(regexEscape(eras[i].narrow));\n }\n\n this._erasRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');\n this._erasNameRegex = new RegExp('^(' + namePieces.join('|') + ')', 'i');\n this._erasAbbrRegex = new RegExp('^(' + abbrPieces.join('|') + ')', 'i');\n this._erasNarrowRegex = new RegExp(\n '^(' + narrowPieces.join('|') + ')',\n 'i'\n );\n }\n\n // FORMATTING\n\n addFormatToken(0, ['gg', 2], 0, function () {\n return this.weekYear() % 100;\n });\n\n addFormatToken(0, ['GG', 2], 0, function () {\n return this.isoWeekYear() % 100;\n });\n\n function addWeekYearFormatToken(token, getter) {\n addFormatToken(0, [token, token.length], 0, getter);\n }\n\n addWeekYearFormatToken('gggg', 'weekYear');\n addWeekYearFormatToken('ggggg', 'weekYear');\n addWeekYearFormatToken('GGGG', 'isoWeekYear');\n addWeekYearFormatToken('GGGGG', 'isoWeekYear');\n\n // ALIASES\n\n addUnitAlias('weekYear', 'gg');\n addUnitAlias('isoWeekYear', 'GG');\n\n // PRIORITY\n\n addUnitPriority('weekYear', 1);\n addUnitPriority('isoWeekYear', 1);\n\n // PARSING\n\n addRegexToken('G', matchSigned);\n addRegexToken('g', matchSigned);\n addRegexToken('GG', match1to2, match2);\n addRegexToken('gg', match1to2, match2);\n addRegexToken('GGGG', match1to4, match4);\n addRegexToken('gggg', match1to4, match4);\n addRegexToken('GGGGG', match1to6, match6);\n addRegexToken('ggggg', match1to6, match6);\n\n addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (\n input,\n week,\n config,\n token\n ) {\n week[token.substr(0, 2)] = toInt(input);\n });\n\n addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {\n week[token] = hooks.parseTwoDigitYear(input);\n });\n\n // MOMENTS\n\n function getSetWeekYear(input) {\n return getSetWeekYearHelper.call(\n this,\n input,\n this.week(),\n this.weekday(),\n this.localeData()._week.dow,\n this.localeData()._week.doy\n );\n }\n\n function getSetISOWeekYear(input) {\n return getSetWeekYearHelper.call(\n this,\n input,\n this.isoWeek(),\n this.isoWeekday(),\n 1,\n 4\n );\n }\n\n function getISOWeeksInYear() {\n return weeksInYear(this.year(), 1, 4);\n }\n\n function getISOWeeksInISOWeekYear() {\n return weeksInYear(this.isoWeekYear(), 1, 4);\n }\n\n function getWeeksInYear() {\n var weekInfo = this.localeData()._week;\n return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);\n }\n\n function getWeeksInWeekYear() {\n var weekInfo = this.localeData()._week;\n return weeksInYear(this.weekYear(), weekInfo.dow, weekInfo.doy);\n }\n\n function getSetWeekYearHelper(input, week, weekday, dow, doy) {\n var weeksTarget;\n if (input == null) {\n return weekOfYear(this, dow, doy).year;\n } else {\n weeksTarget = weeksInYear(input, dow, doy);\n if (week > weeksTarget) {\n week = weeksTarget;\n }\n return setWeekAll.call(this, input, week, weekday, dow, doy);\n }\n }\n\n function setWeekAll(weekYear, week, weekday, dow, doy) {\n var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),\n date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);\n\n this.year(date.getUTCFullYear());\n this.month(date.getUTCMonth());\n this.date(date.getUTCDate());\n return this;\n }\n\n // FORMATTING\n\n addFormatToken('Q', 0, 'Qo', 'quarter');\n\n // ALIASES\n\n addUnitAlias('quarter', 'Q');\n\n // PRIORITY\n\n addUnitPriority('quarter', 7);\n\n // PARSING\n\n addRegexToken('Q', match1);\n addParseToken('Q', function (input, array) {\n array[MONTH] = (toInt(input) - 1) * 3;\n });\n\n // MOMENTS\n\n function getSetQuarter(input) {\n return input == null\n ? Math.ceil((this.month() + 1) / 3)\n : this.month((input - 1) * 3 + (this.month() % 3));\n }\n\n // FORMATTING\n\n addFormatToken('D', ['DD', 2], 'Do', 'date');\n\n // ALIASES\n\n addUnitAlias('date', 'D');\n\n // PRIORITY\n addUnitPriority('date', 9);\n\n // PARSING\n\n addRegexToken('D', match1to2);\n addRegexToken('DD', match1to2, match2);\n addRegexToken('Do', function (isStrict, locale) {\n // TODO: Remove \"ordinalParse\" fallback in next major release.\n return isStrict\n ? locale._dayOfMonthOrdinalParse || locale._ordinalParse\n : locale._dayOfMonthOrdinalParseLenient;\n });\n\n addParseToken(['D', 'DD'], DATE);\n addParseToken('Do', function (input, array) {\n array[DATE] = toInt(input.match(match1to2)[0]);\n });\n\n // MOMENTS\n\n var getSetDayOfMonth = makeGetSet('Date', true);\n\n // FORMATTING\n\n addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');\n\n // ALIASES\n\n addUnitAlias('dayOfYear', 'DDD');\n\n // PRIORITY\n addUnitPriority('dayOfYear', 4);\n\n // PARSING\n\n addRegexToken('DDD', match1to3);\n addRegexToken('DDDD', match3);\n addParseToken(['DDD', 'DDDD'], function (input, array, config) {\n config._dayOfYear = toInt(input);\n });\n\n // HELPERS\n\n // MOMENTS\n\n function getSetDayOfYear(input) {\n var dayOfYear =\n Math.round(\n (this.clone().startOf('day') - this.clone().startOf('year')) / 864e5\n ) + 1;\n return input == null ? dayOfYear : this.add(input - dayOfYear, 'd');\n }\n\n // FORMATTING\n\n addFormatToken('m', ['mm', 2], 0, 'minute');\n\n // ALIASES\n\n addUnitAlias('minute', 'm');\n\n // PRIORITY\n\n addUnitPriority('minute', 14);\n\n // PARSING\n\n addRegexToken('m', match1to2);\n addRegexToken('mm', match1to2, match2);\n addParseToken(['m', 'mm'], MINUTE);\n\n // MOMENTS\n\n var getSetMinute = makeGetSet('Minutes', false);\n\n // FORMATTING\n\n addFormatToken('s', ['ss', 2], 0, 'second');\n\n // ALIASES\n\n addUnitAlias('second', 's');\n\n // PRIORITY\n\n addUnitPriority('second', 15);\n\n // PARSING\n\n addRegexToken('s', match1to2);\n addRegexToken('ss', match1to2, match2);\n addParseToken(['s', 'ss'], SECOND);\n\n // MOMENTS\n\n var getSetSecond = makeGetSet('Seconds', false);\n\n // FORMATTING\n\n addFormatToken('S', 0, 0, function () {\n return ~~(this.millisecond() / 100);\n });\n\n addFormatToken(0, ['SS', 2], 0, function () {\n return ~~(this.millisecond() / 10);\n });\n\n addFormatToken(0, ['SSS', 3], 0, 'millisecond');\n addFormatToken(0, ['SSSS', 4], 0, function () {\n return this.millisecond() * 10;\n });\n addFormatToken(0, ['SSSSS', 5], 0, function () {\n return this.millisecond() * 100;\n });\n addFormatToken(0, ['SSSSSS', 6], 0, function () {\n return this.millisecond() * 1000;\n });\n addFormatToken(0, ['SSSSSSS', 7], 0, function () {\n return this.millisecond() * 10000;\n });\n addFormatToken(0, ['SSSSSSSS', 8], 0, function () {\n return this.millisecond() * 100000;\n });\n addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {\n return this.millisecond() * 1000000;\n });\n\n // ALIASES\n\n addUnitAlias('millisecond', 'ms');\n\n // PRIORITY\n\n addUnitPriority('millisecond', 16);\n\n // PARSING\n\n addRegexToken('S', match1to3, match1);\n addRegexToken('SS', match1to3, match2);\n addRegexToken('SSS', match1to3, match3);\n\n var token, getSetMillisecond;\n for (token = 'SSSS'; token.length <= 9; token += 'S') {\n addRegexToken(token, matchUnsigned);\n }\n\n function parseMs(input, array) {\n array[MILLISECOND] = toInt(('0.' + input) * 1000);\n }\n\n for (token = 'S'; token.length <= 9; token += 'S') {\n addParseToken(token, parseMs);\n }\n\n getSetMillisecond = makeGetSet('Milliseconds', false);\n\n // FORMATTING\n\n addFormatToken('z', 0, 0, 'zoneAbbr');\n addFormatToken('zz', 0, 0, 'zoneName');\n\n // MOMENTS\n\n function getZoneAbbr() {\n return this._isUTC ? 'UTC' : '';\n }\n\n function getZoneName() {\n return this._isUTC ? 'Coordinated Universal Time' : '';\n }\n\n var proto = Moment.prototype;\n\n proto.add = add;\n proto.calendar = calendar$1;\n proto.clone = clone;\n proto.diff = diff;\n proto.endOf = endOf;\n proto.format = format;\n proto.from = from;\n proto.fromNow = fromNow;\n proto.to = to;\n proto.toNow = toNow;\n proto.get = stringGet;\n proto.invalidAt = invalidAt;\n proto.isAfter = isAfter;\n proto.isBefore = isBefore;\n proto.isBetween = isBetween;\n proto.isSame = isSame;\n proto.isSameOrAfter = isSameOrAfter;\n proto.isSameOrBefore = isSameOrBefore;\n proto.isValid = isValid$2;\n proto.lang = lang;\n proto.locale = locale;\n proto.localeData = localeData;\n proto.max = prototypeMax;\n proto.min = prototypeMin;\n proto.parsingFlags = parsingFlags;\n proto.set = stringSet;\n proto.startOf = startOf;\n proto.subtract = subtract;\n proto.toArray = toArray;\n proto.toObject = toObject;\n proto.toDate = toDate;\n proto.toISOString = toISOString;\n proto.inspect = inspect;\n if (typeof Symbol !== 'undefined' && Symbol.for != null) {\n proto[Symbol.for('nodejs.util.inspect.custom')] = function () {\n return 'Moment<' + this.format() + '>';\n };\n }\n proto.toJSON = toJSON;\n proto.toString = toString;\n proto.unix = unix;\n proto.valueOf = valueOf;\n proto.creationData = creationData;\n proto.eraName = getEraName;\n proto.eraNarrow = getEraNarrow;\n proto.eraAbbr = getEraAbbr;\n proto.eraYear = getEraYear;\n proto.year = getSetYear;\n proto.isLeapYear = getIsLeapYear;\n proto.weekYear = getSetWeekYear;\n proto.isoWeekYear = getSetISOWeekYear;\n proto.quarter = proto.quarters = getSetQuarter;\n proto.month = getSetMonth;\n proto.daysInMonth = getDaysInMonth;\n proto.week = proto.weeks = getSetWeek;\n proto.isoWeek = proto.isoWeeks = getSetISOWeek;\n proto.weeksInYear = getWeeksInYear;\n proto.weeksInWeekYear = getWeeksInWeekYear;\n proto.isoWeeksInYear = getISOWeeksInYear;\n proto.isoWeeksInISOWeekYear = getISOWeeksInISOWeekYear;\n proto.date = getSetDayOfMonth;\n proto.day = proto.days = getSetDayOfWeek;\n proto.weekday = getSetLocaleDayOfWeek;\n proto.isoWeekday = getSetISODayOfWeek;\n proto.dayOfYear = getSetDayOfYear;\n proto.hour = proto.hours = getSetHour;\n proto.minute = proto.minutes = getSetMinute;\n proto.second = proto.seconds = getSetSecond;\n proto.millisecond = proto.milliseconds = getSetMillisecond;\n proto.utcOffset = getSetOffset;\n proto.utc = setOffsetToUTC;\n proto.local = setOffsetToLocal;\n proto.parseZone = setOffsetToParsedOffset;\n proto.hasAlignedHourOffset = hasAlignedHourOffset;\n proto.isDST = isDaylightSavingTime;\n proto.isLocal = isLocal;\n proto.isUtcOffset = isUtcOffset;\n proto.isUtc = isUtc;\n proto.isUTC = isUtc;\n proto.zoneAbbr = getZoneAbbr;\n proto.zoneName = getZoneName;\n proto.dates = deprecate(\n 'dates accessor is deprecated. Use date instead.',\n getSetDayOfMonth\n );\n proto.months = deprecate(\n 'months accessor is deprecated. Use month instead',\n getSetMonth\n );\n proto.years = deprecate(\n 'years accessor is deprecated. Use year instead',\n getSetYear\n );\n proto.zone = deprecate(\n 'moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/',\n getSetZone\n );\n proto.isDSTShifted = deprecate(\n 'isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information',\n isDaylightSavingTimeShifted\n );\n\n function createUnix(input) {\n return createLocal(input * 1000);\n }\n\n function createInZone() {\n return createLocal.apply(null, arguments).parseZone();\n }\n\n function preParsePostFormat(string) {\n return string;\n }\n\n var proto$1 = Locale.prototype;\n\n proto$1.calendar = calendar;\n proto$1.longDateFormat = longDateFormat;\n proto$1.invalidDate = invalidDate;\n proto$1.ordinal = ordinal;\n proto$1.preparse = preParsePostFormat;\n proto$1.postformat = preParsePostFormat;\n proto$1.relativeTime = relativeTime;\n proto$1.pastFuture = pastFuture;\n proto$1.set = set;\n proto$1.eras = localeEras;\n proto$1.erasParse = localeErasParse;\n proto$1.erasConvertYear = localeErasConvertYear;\n proto$1.erasAbbrRegex = erasAbbrRegex;\n proto$1.erasNameRegex = erasNameRegex;\n proto$1.erasNarrowRegex = erasNarrowRegex;\n\n proto$1.months = localeMonths;\n proto$1.monthsShort = localeMonthsShort;\n proto$1.monthsParse = localeMonthsParse;\n proto$1.monthsRegex = monthsRegex;\n proto$1.monthsShortRegex = monthsShortRegex;\n proto$1.week = localeWeek;\n proto$1.firstDayOfYear = localeFirstDayOfYear;\n proto$1.firstDayOfWeek = localeFirstDayOfWeek;\n\n proto$1.weekdays = localeWeekdays;\n proto$1.weekdaysMin = localeWeekdaysMin;\n proto$1.weekdaysShort = localeWeekdaysShort;\n proto$1.weekdaysParse = localeWeekdaysParse;\n\n proto$1.weekdaysRegex = weekdaysRegex;\n proto$1.weekdaysShortRegex = weekdaysShortRegex;\n proto$1.weekdaysMinRegex = weekdaysMinRegex;\n\n proto$1.isPM = localeIsPM;\n proto$1.meridiem = localeMeridiem;\n\n function get$1(format, index, field, setter) {\n var locale = getLocale(),\n utc = createUTC().set(setter, index);\n return locale[field](utc, format);\n }\n\n function listMonthsImpl(format, index, field) {\n if (isNumber(format)) {\n index = format;\n format = undefined;\n }\n\n format = format || '';\n\n if (index != null) {\n return get$1(format, index, field, 'month');\n }\n\n var i,\n out = [];\n for (i = 0; i < 12; i++) {\n out[i] = get$1(format, i, field, 'month');\n }\n return out;\n }\n\n // ()\n // (5)\n // (fmt, 5)\n // (fmt)\n // (true)\n // (true, 5)\n // (true, fmt, 5)\n // (true, fmt)\n function listWeekdaysImpl(localeSorted, format, index, field) {\n if (typeof localeSorted === 'boolean') {\n if (isNumber(format)) {\n index = format;\n format = undefined;\n }\n\n format = format || '';\n } else {\n format = localeSorted;\n index = format;\n localeSorted = false;\n\n if (isNumber(format)) {\n index = format;\n format = undefined;\n }\n\n format = format || '';\n }\n\n var locale = getLocale(),\n shift = localeSorted ? locale._week.dow : 0,\n i,\n out = [];\n\n if (index != null) {\n return get$1(format, (index + shift) % 7, field, 'day');\n }\n\n for (i = 0; i < 7; i++) {\n out[i] = get$1(format, (i + shift) % 7, field, 'day');\n }\n return out;\n }\n\n function listMonths(format, index) {\n return listMonthsImpl(format, index, 'months');\n }\n\n function listMonthsShort(format, index) {\n return listMonthsImpl(format, index, 'monthsShort');\n }\n\n function listWeekdays(localeSorted, format, index) {\n return listWeekdaysImpl(localeSorted, format, index, 'weekdays');\n }\n\n function listWeekdaysShort(localeSorted, format, index) {\n return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');\n }\n\n function listWeekdaysMin(localeSorted, format, index) {\n return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');\n }\n\n getSetGlobalLocale('en', {\n eras: [\n {\n since: '0001-01-01',\n until: +Infinity,\n offset: 1,\n name: 'Anno Domini',\n narrow: 'AD',\n abbr: 'AD',\n },\n {\n since: '0000-12-31',\n until: -Infinity,\n offset: 1,\n name: 'Before Christ',\n narrow: 'BC',\n abbr: 'BC',\n },\n ],\n dayOfMonthOrdinalParse: /\\d{1,2}(th|st|nd|rd)/,\n ordinal: function (number) {\n var b = number % 10,\n output =\n toInt((number % 100) / 10) === 1\n ? 'th'\n : b === 1\n ? 'st'\n : b === 2\n ? 'nd'\n : b === 3\n ? 'rd'\n : 'th';\n return number + output;\n },\n });\n\n // Side effect imports\n\n hooks.lang = deprecate(\n 'moment.lang is deprecated. Use moment.locale instead.',\n getSetGlobalLocale\n );\n hooks.langData = deprecate(\n 'moment.langData is deprecated. Use moment.localeData instead.',\n getLocale\n );\n\n var mathAbs = Math.abs;\n\n function abs() {\n var data = this._data;\n\n this._milliseconds = mathAbs(this._milliseconds);\n this._days = mathAbs(this._days);\n this._months = mathAbs(this._months);\n\n data.milliseconds = mathAbs(data.milliseconds);\n data.seconds = mathAbs(data.seconds);\n data.minutes = mathAbs(data.minutes);\n data.hours = mathAbs(data.hours);\n data.months = mathAbs(data.months);\n data.years = mathAbs(data.years);\n\n return this;\n }\n\n function addSubtract$1(duration, input, value, direction) {\n var other = createDuration(input, value);\n\n duration._milliseconds += direction * other._milliseconds;\n duration._days += direction * other._days;\n duration._months += direction * other._months;\n\n return duration._bubble();\n }\n\n // supports only 2.0-style add(1, 's') or add(duration)\n function add$1(input, value) {\n return addSubtract$1(this, input, value, 1);\n }\n\n // supports only 2.0-style subtract(1, 's') or subtract(duration)\n function subtract$1(input, value) {\n return addSubtract$1(this, input, value, -1);\n }\n\n function absCeil(number) {\n if (number < 0) {\n return Math.floor(number);\n } else {\n return Math.ceil(number);\n }\n }\n\n function bubble() {\n var milliseconds = this._milliseconds,\n days = this._days,\n months = this._months,\n data = this._data,\n seconds,\n minutes,\n hours,\n years,\n monthsFromDays;\n\n // if we have a mix of positive and negative values, bubble down first\n // check: https://github.com/moment/moment/issues/2166\n if (\n !(\n (milliseconds >= 0 && days >= 0 && months >= 0) ||\n (milliseconds <= 0 && days <= 0 && months <= 0)\n )\n ) {\n milliseconds += absCeil(monthsToDays(months) + days) * 864e5;\n days = 0;\n months = 0;\n }\n\n // The following code bubbles up values, see the tests for\n // examples of what that means.\n data.milliseconds = milliseconds % 1000;\n\n seconds = absFloor(milliseconds / 1000);\n data.seconds = seconds % 60;\n\n minutes = absFloor(seconds / 60);\n data.minutes = minutes % 60;\n\n hours = absFloor(minutes / 60);\n data.hours = hours % 24;\n\n days += absFloor(hours / 24);\n\n // convert days to months\n monthsFromDays = absFloor(daysToMonths(days));\n months += monthsFromDays;\n days -= absCeil(monthsToDays(monthsFromDays));\n\n // 12 months -> 1 year\n years = absFloor(months / 12);\n months %= 12;\n\n data.days = days;\n data.months = months;\n data.years = years;\n\n return this;\n }\n\n function daysToMonths(days) {\n // 400 years have 146097 days (taking into account leap year rules)\n // 400 years have 12 months === 4800\n return (days * 4800) / 146097;\n }\n\n function monthsToDays(months) {\n // the reverse of daysToMonths\n return (months * 146097) / 4800;\n }\n\n function as(units) {\n if (!this.isValid()) {\n return NaN;\n }\n var days,\n months,\n milliseconds = this._milliseconds;\n\n units = normalizeUnits(units);\n\n if (units === 'month' || units === 'quarter' || units === 'year') {\n days = this._days + milliseconds / 864e5;\n months = this._months + daysToMonths(days);\n switch (units) {\n case 'month':\n return months;\n case 'quarter':\n return months / 3;\n case 'year':\n return months / 12;\n }\n } else {\n // handle milliseconds separately because of floating point math errors (issue #1867)\n days = this._days + Math.round(monthsToDays(this._months));\n switch (units) {\n case 'week':\n return days / 7 + milliseconds / 6048e5;\n case 'day':\n return days + milliseconds / 864e5;\n case 'hour':\n return days * 24 + milliseconds / 36e5;\n case 'minute':\n return days * 1440 + milliseconds / 6e4;\n case 'second':\n return days * 86400 + milliseconds / 1000;\n // Math.floor prevents floating point math errors here\n case 'millisecond':\n return Math.floor(days * 864e5) + milliseconds;\n default:\n throw new Error('Unknown unit ' + units);\n }\n }\n }\n\n // TODO: Use this.as('ms')?\n function valueOf$1() {\n if (!this.isValid()) {\n return NaN;\n }\n return (\n this._milliseconds +\n this._days * 864e5 +\n (this._months % 12) * 2592e6 +\n toInt(this._months / 12) * 31536e6\n );\n }\n\n function makeAs(alias) {\n return function () {\n return this.as(alias);\n };\n }\n\n var asMilliseconds = makeAs('ms'),\n asSeconds = makeAs('s'),\n asMinutes = makeAs('m'),\n asHours = makeAs('h'),\n asDays = makeAs('d'),\n asWeeks = makeAs('w'),\n asMonths = makeAs('M'),\n asQuarters = makeAs('Q'),\n asYears = makeAs('y');\n\n function clone$1() {\n return createDuration(this);\n }\n\n function get$2(units) {\n units = normalizeUnits(units);\n return this.isValid() ? this[units + 's']() : NaN;\n }\n\n function makeGetter(name) {\n return function () {\n return this.isValid() ? this._data[name] : NaN;\n };\n }\n\n var milliseconds = makeGetter('milliseconds'),\n seconds = makeGetter('seconds'),\n minutes = makeGetter('minutes'),\n hours = makeGetter('hours'),\n days = makeGetter('days'),\n months = makeGetter('months'),\n years = makeGetter('years');\n\n function weeks() {\n return absFloor(this.days() / 7);\n }\n\n var round = Math.round,\n thresholds = {\n ss: 44, // a few seconds to seconds\n s: 45, // seconds to minute\n m: 45, // minutes to hour\n h: 22, // hours to day\n d: 26, // days to month/week\n w: null, // weeks to month\n M: 11, // months to year\n };\n\n // helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize\n function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {\n return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);\n }\n\n function relativeTime$1(posNegDuration, withoutSuffix, thresholds, locale) {\n var duration = createDuration(posNegDuration).abs(),\n seconds = round(duration.as('s')),\n minutes = round(duration.as('m')),\n hours = round(duration.as('h')),\n days = round(duration.as('d')),\n months = round(duration.as('M')),\n weeks = round(duration.as('w')),\n years = round(duration.as('y')),\n a =\n (seconds <= thresholds.ss && ['s', seconds]) ||\n (seconds < thresholds.s && ['ss', seconds]) ||\n (minutes <= 1 && ['m']) ||\n (minutes < thresholds.m && ['mm', minutes]) ||\n (hours <= 1 && ['h']) ||\n (hours < thresholds.h && ['hh', hours]) ||\n (days <= 1 && ['d']) ||\n (days < thresholds.d && ['dd', days]);\n\n if (thresholds.w != null) {\n a =\n a ||\n (weeks <= 1 && ['w']) ||\n (weeks < thresholds.w && ['ww', weeks]);\n }\n a = a ||\n (months <= 1 && ['M']) ||\n (months < thresholds.M && ['MM', months]) ||\n (years <= 1 && ['y']) || ['yy', years];\n\n a[2] = withoutSuffix;\n a[3] = +posNegDuration > 0;\n a[4] = locale;\n return substituteTimeAgo.apply(null, a);\n }\n\n // This function allows you to set the rounding function for relative time strings\n function getSetRelativeTimeRounding(roundingFunction) {\n if (roundingFunction === undefined) {\n return round;\n }\n if (typeof roundingFunction === 'function') {\n round = roundingFunction;\n return true;\n }\n return false;\n }\n\n // This function allows you to set a threshold for relative time strings\n function getSetRelativeTimeThreshold(threshold, limit) {\n if (thresholds[threshold] === undefined) {\n return false;\n }\n if (limit === undefined) {\n return thresholds[threshold];\n }\n thresholds[threshold] = limit;\n if (threshold === 's') {\n thresholds.ss = limit - 1;\n }\n return true;\n }\n\n function humanize(argWithSuffix, argThresholds) {\n if (!this.isValid()) {\n return this.localeData().invalidDate();\n }\n\n var withSuffix = false,\n th = thresholds,\n locale,\n output;\n\n if (typeof argWithSuffix === 'object') {\n argThresholds = argWithSuffix;\n argWithSuffix = false;\n }\n if (typeof argWithSuffix === 'boolean') {\n withSuffix = argWithSuffix;\n }\n if (typeof argThresholds === 'object') {\n th = Object.assign({}, thresholds, argThresholds);\n if (argThresholds.s != null && argThresholds.ss == null) {\n th.ss = argThresholds.s - 1;\n }\n }\n\n locale = this.localeData();\n output = relativeTime$1(this, !withSuffix, th, locale);\n\n if (withSuffix) {\n output = locale.pastFuture(+this, output);\n }\n\n return locale.postformat(output);\n }\n\n var abs$1 = Math.abs;\n\n function sign(x) {\n return (x > 0) - (x < 0) || +x;\n }\n\n function toISOString$1() {\n // for ISO strings we do not use the normal bubbling rules:\n // * milliseconds bubble up until they become hours\n // * days do not bubble at all\n // * months bubble up until they become years\n // This is because there is no context-free conversion between hours and days\n // (think of clock changes)\n // and also not between days and months (28-31 days per month)\n if (!this.isValid()) {\n return this.localeData().invalidDate();\n }\n\n var seconds = abs$1(this._milliseconds) / 1000,\n days = abs$1(this._days),\n months = abs$1(this._months),\n minutes,\n hours,\n years,\n s,\n total = this.asSeconds(),\n totalSign,\n ymSign,\n daysSign,\n hmsSign;\n\n if (!total) {\n // this is the same as C#'s (Noda) and python (isodate)...\n // but not other JS (goog.date)\n return 'P0D';\n }\n\n // 3600 seconds -> 60 minutes -> 1 hour\n minutes = absFloor(seconds / 60);\n hours = absFloor(minutes / 60);\n seconds %= 60;\n minutes %= 60;\n\n // 12 months -> 1 year\n years = absFloor(months / 12);\n months %= 12;\n\n // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js\n s = seconds ? seconds.toFixed(3).replace(/\\.?0+$/, '') : '';\n\n totalSign = total < 0 ? '-' : '';\n ymSign = sign(this._months) !== sign(total) ? '-' : '';\n daysSign = sign(this._days) !== sign(total) ? '-' : '';\n hmsSign = sign(this._milliseconds) !== sign(total) ? '-' : '';\n\n return (\n totalSign +\n 'P' +\n (years ? ymSign + years + 'Y' : '') +\n (months ? ymSign + months + 'M' : '') +\n (days ? daysSign + days + 'D' : '') +\n (hours || minutes || seconds ? 'T' : '') +\n (hours ? hmsSign + hours + 'H' : '') +\n (minutes ? hmsSign + minutes + 'M' : '') +\n (seconds ? hmsSign + s + 'S' : '')\n );\n }\n\n var proto$2 = Duration.prototype;\n\n proto$2.isValid = isValid$1;\n proto$2.abs = abs;\n proto$2.add = add$1;\n proto$2.subtract = subtract$1;\n proto$2.as = as;\n proto$2.asMilliseconds = asMilliseconds;\n proto$2.asSeconds = asSeconds;\n proto$2.asMinutes = asMinutes;\n proto$2.asHours = asHours;\n proto$2.asDays = asDays;\n proto$2.asWeeks = asWeeks;\n proto$2.asMonths = asMonths;\n proto$2.asQuarters = asQuarters;\n proto$2.asYears = asYears;\n proto$2.valueOf = valueOf$1;\n proto$2._bubble = bubble;\n proto$2.clone = clone$1;\n proto$2.get = get$2;\n proto$2.milliseconds = milliseconds;\n proto$2.seconds = seconds;\n proto$2.minutes = minutes;\n proto$2.hours = hours;\n proto$2.days = days;\n proto$2.weeks = weeks;\n proto$2.months = months;\n proto$2.years = years;\n proto$2.humanize = humanize;\n proto$2.toISOString = toISOString$1;\n proto$2.toString = toISOString$1;\n proto$2.toJSON = toISOString$1;\n proto$2.locale = locale;\n proto$2.localeData = localeData;\n\n proto$2.toIsoString = deprecate(\n 'toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)',\n toISOString$1\n );\n proto$2.lang = lang;\n\n // FORMATTING\n\n addFormatToken('X', 0, 0, 'unix');\n addFormatToken('x', 0, 0, 'valueOf');\n\n // PARSING\n\n addRegexToken('x', matchSigned);\n addRegexToken('X', matchTimestamp);\n addParseToken('X', function (input, array, config) {\n config._d = new Date(parseFloat(input) * 1000);\n });\n addParseToken('x', function (input, array, config) {\n config._d = new Date(toInt(input));\n });\n\n //! moment.js\n\n hooks.version = '2.29.1';\n\n setHookCallback(createLocal);\n\n hooks.fn = proto;\n hooks.min = min;\n hooks.max = max;\n hooks.now = now;\n hooks.utc = createUTC;\n hooks.unix = createUnix;\n hooks.months = listMonths;\n hooks.isDate = isDate;\n hooks.locale = getSetGlobalLocale;\n hooks.invalid = createInvalid;\n hooks.duration = createDuration;\n hooks.isMoment = isMoment;\n hooks.weekdays = listWeekdays;\n hooks.parseZone = createInZone;\n hooks.localeData = getLocale;\n hooks.isDuration = isDuration;\n hooks.monthsShort = listMonthsShort;\n hooks.weekdaysMin = listWeekdaysMin;\n hooks.defineLocale = defineLocale;\n hooks.updateLocale = updateLocale;\n hooks.locales = listLocales;\n hooks.weekdaysShort = listWeekdaysShort;\n hooks.normalizeUnits = normalizeUnits;\n hooks.relativeTimeRounding = getSetRelativeTimeRounding;\n hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;\n hooks.calendarFormat = getCalendarFormat;\n hooks.prototype = proto;\n\n // currently HTML5 input type only supports 24-hour formats\n hooks.HTML5_FMT = {\n DATETIME_LOCAL: 'YYYY-MM-DDTHH:mm', // \n DATETIME_LOCAL_SECONDS: 'YYYY-MM-DDTHH:mm:ss', // \n DATETIME_LOCAL_MS: 'YYYY-MM-DDTHH:mm:ss.SSS', // \n DATE: 'YYYY-MM-DD', // \n TIME: 'HH:mm', // \n TIME_SECONDS: 'HH:mm:ss', // \n TIME_MS: 'HH:mm:ss.SSS', // \n WEEK: 'GGGG-[W]WW', // \n MONTH: 'YYYY-MM', // \n };\n\n return hooks;\n\n})));\n","function areInputsEqual(newInputs, lastInputs) {\n if (newInputs.length !== lastInputs.length) {\n return false;\n }\n for (var i = 0; i < newInputs.length; i++) {\n if (newInputs[i] !== lastInputs[i]) {\n return false;\n }\n }\n return true;\n}\n\nfunction memoizeOne(resultFn, isEqual) {\n if (isEqual === void 0) { isEqual = areInputsEqual; }\n var lastThis;\n var lastArgs = [];\n var lastResult;\n var calledOnce = false;\n function memoized() {\n var newArgs = [];\n for (var _i = 0; _i < arguments.length; _i++) {\n newArgs[_i] = arguments[_i];\n }\n if (calledOnce && lastThis === this && isEqual(newArgs, lastArgs)) {\n return lastResult;\n }\n lastResult = resultFn.apply(this, newArgs);\n calledOnce = true;\n lastThis = this;\n lastArgs = newArgs;\n return lastResult;\n }\n return memoized;\n}\n\nexport default memoizeOne;\n","import freeGlobal from './_freeGlobal.js';\n\n/** Detect free variable `self`. */\nvar freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n/** Used as a reference to the global object. */\nvar root = freeGlobal || freeSelf || Function('return this')();\n\nexport default root;\n","export var max = Math.max;\nexport var min = Math.min;\nexport var round = Math.round;","export default function _taggedTemplateLiteral(strings, raw) {\n if (!raw) {\n raw = strings.slice(0);\n }\n\n return Object.freeze(Object.defineProperties(strings, {\n raw: {\n value: Object.freeze(raw)\n }\n }));\n}","/*\nobject-assign\n(c) Sindre Sorhus\n@license MIT\n*/\n\n'use strict';\n/* eslint-disable no-unused-vars */\nvar getOwnPropertySymbols = Object.getOwnPropertySymbols;\nvar hasOwnProperty = Object.prototype.hasOwnProperty;\nvar propIsEnumerable = Object.prototype.propertyIsEnumerable;\n\nfunction toObject(val) {\n\tif (val === null || val === undefined) {\n\t\tthrow new TypeError('Object.assign cannot be called with null or undefined');\n\t}\n\n\treturn Object(val);\n}\n\nfunction shouldUseNative() {\n\ttry {\n\t\tif (!Object.assign) {\n\t\t\treturn false;\n\t\t}\n\n\t\t// Detect buggy property enumeration order in older V8 versions.\n\n\t\t// https://bugs.chromium.org/p/v8/issues/detail?id=4118\n\t\tvar test1 = new String('abc'); // eslint-disable-line no-new-wrappers\n\t\ttest1[5] = 'de';\n\t\tif (Object.getOwnPropertyNames(test1)[0] === '5') {\n\t\t\treturn false;\n\t\t}\n\n\t\t// https://bugs.chromium.org/p/v8/issues/detail?id=3056\n\t\tvar test2 = {};\n\t\tfor (var i = 0; i < 10; i++) {\n\t\t\ttest2['_' + String.fromCharCode(i)] = i;\n\t\t}\n\t\tvar order2 = Object.getOwnPropertyNames(test2).map(function (n) {\n\t\t\treturn test2[n];\n\t\t});\n\t\tif (order2.join('') !== '0123456789') {\n\t\t\treturn false;\n\t\t}\n\n\t\t// https://bugs.chromium.org/p/v8/issues/detail?id=3056\n\t\tvar test3 = {};\n\t\t'abcdefghijklmnopqrst'.split('').forEach(function (letter) {\n\t\t\ttest3[letter] = letter;\n\t\t});\n\t\tif (Object.keys(Object.assign({}, test3)).join('') !==\n\t\t\t\t'abcdefghijklmnopqrst') {\n\t\t\treturn false;\n\t\t}\n\n\t\treturn true;\n\t} catch (err) {\n\t\t// We don't expect any of the above to throw, but better to be safe.\n\t\treturn false;\n\t}\n}\n\nmodule.exports = shouldUseNative() ? Object.assign : function (target, source) {\n\tvar from;\n\tvar to = toObject(target);\n\tvar symbols;\n\n\tfor (var s = 1; s < arguments.length; s++) {\n\t\tfrom = Object(arguments[s]);\n\n\t\tfor (var key in from) {\n\t\t\tif (hasOwnProperty.call(from, key)) {\n\t\t\t\tto[key] = from[key];\n\t\t\t}\n\t\t}\n\n\t\tif (getOwnPropertySymbols) {\n\t\t\tsymbols = getOwnPropertySymbols(from);\n\t\t\tfor (var i = 0; i < symbols.length; i++) {\n\t\t\t\tif (propIsEnumerable.call(from, symbols[i])) {\n\t\t\t\t\tto[symbols[i]] = from[symbols[i]];\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\t}\n\n\treturn to;\n};\n","/**\n * @license\n * Lodash \n * Based on Underscore.js 1.8.3 \n * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors\n */\n;(function() {\n\n /** Used as a safe reference for `undefined` in pre-ES5 environments. */\n var undefined;\n\n /** Used as the semantic version number. */\n var VERSION = '4.17.21';\n\n /** Used as the size to enable large array optimizations. */\n var LARGE_ARRAY_SIZE = 200;\n\n /** Error message constants. */\n var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',\n FUNC_ERROR_TEXT = 'Expected a function',\n INVALID_TEMPL_VAR_ERROR_TEXT = 'Invalid `variable` option passed into `_.template`';\n\n /** Used to stand-in for `undefined` hash values. */\n var HASH_UNDEFINED = '__lodash_hash_undefined__';\n\n /** Used as the maximum memoize cache size. */\n var MAX_MEMOIZE_SIZE = 500;\n\n /** Used as the internal argument placeholder. */\n var PLACEHOLDER = '__lodash_placeholder__';\n\n /** Used to compose bitmasks for cloning. */\n var CLONE_DEEP_FLAG = 1,\n CLONE_FLAT_FLAG = 2,\n CLONE_SYMBOLS_FLAG = 4;\n\n /** Used to compose bitmasks for value comparisons. */\n var COMPARE_PARTIAL_FLAG = 1,\n COMPARE_UNORDERED_FLAG = 2;\n\n /** Used to compose bitmasks for function metadata. */\n var WRAP_BIND_FLAG = 1,\n WRAP_BIND_KEY_FLAG = 2,\n WRAP_CURRY_BOUND_FLAG = 4,\n WRAP_CURRY_FLAG = 8,\n WRAP_CURRY_RIGHT_FLAG = 16,\n WRAP_PARTIAL_FLAG = 32,\n WRAP_PARTIAL_RIGHT_FLAG = 64,\n WRAP_ARY_FLAG = 128,\n WRAP_REARG_FLAG = 256,\n WRAP_FLIP_FLAG = 512;\n\n /** Used as default options for `_.truncate`. */\n var DEFAULT_TRUNC_LENGTH = 30,\n DEFAULT_TRUNC_OMISSION = '...';\n\n /** Used to detect hot functions by number of calls within a span of milliseconds. */\n var HOT_COUNT = 800,\n HOT_SPAN = 16;\n\n /** Used to indicate the type of lazy iteratees. */\n var LAZY_FILTER_FLAG = 1,\n LAZY_MAP_FLAG = 2,\n LAZY_WHILE_FLAG = 3;\n\n /** Used as references for various `Number` constants. */\n var INFINITY = 1 / 0,\n MAX_SAFE_INTEGER = 9007199254740991,\n MAX_INTEGER = 1.7976931348623157e+308,\n NAN = 0 / 0;\n\n /** Used as references for the maximum length and index of an array. */\n var MAX_ARRAY_LENGTH = 4294967295,\n MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,\n HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;\n\n /** Used to associate wrap methods with their bit flags. */\n var wrapFlags = [\n ['ary', WRAP_ARY_FLAG],\n ['bind', WRAP_BIND_FLAG],\n ['bindKey', WRAP_BIND_KEY_FLAG],\n ['curry', WRAP_CURRY_FLAG],\n ['curryRight', WRAP_CURRY_RIGHT_FLAG],\n ['flip', WRAP_FLIP_FLAG],\n ['partial', WRAP_PARTIAL_FLAG],\n ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],\n ['rearg', WRAP_REARG_FLAG]\n ];\n\n /** `Object#toString` result references. */\n var argsTag = '[object Arguments]',\n arrayTag = '[object Array]',\n asyncTag = '[object AsyncFunction]',\n boolTag = '[object Boolean]',\n dateTag = '[object Date]',\n domExcTag = '[object DOMException]',\n errorTag = '[object Error]',\n funcTag = '[object Function]',\n genTag = '[object GeneratorFunction]',\n mapTag = '[object Map]',\n numberTag = '[object Number]',\n nullTag = '[object Null]',\n objectTag = '[object Object]',\n promiseTag = '[object Promise]',\n proxyTag = '[object Proxy]',\n regexpTag = '[object RegExp]',\n setTag = '[object Set]',\n stringTag = '[object String]',\n symbolTag = '[object Symbol]',\n undefinedTag = '[object Undefined]',\n weakMapTag = '[object WeakMap]',\n weakSetTag = '[object WeakSet]';\n\n var arrayBufferTag = '[object ArrayBuffer]',\n dataViewTag = '[object DataView]',\n float32Tag = '[object Float32Array]',\n float64Tag = '[object Float64Array]',\n int8Tag = '[object Int8Array]',\n int16Tag = '[object Int16Array]',\n int32Tag = '[object Int32Array]',\n uint8Tag = '[object Uint8Array]',\n uint8ClampedTag = '[object Uint8ClampedArray]',\n uint16Tag = '[object Uint16Array]',\n uint32Tag = '[object Uint32Array]';\n\n /** Used to match empty string literals in compiled template source. */\n var reEmptyStringLeading = /\\b__p \\+= '';/g,\n reEmptyStringMiddle = /\\b(__p \\+=) '' \\+/g,\n reEmptyStringTrailing = /(__e\\(.*?\\)|\\b__t\\)) \\+\\n'';/g;\n\n /** Used to match HTML entities and HTML characters. */\n var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,\n reUnescapedHtml = /[&<>\"']/g,\n reHasEscapedHtml = RegExp(reEscapedHtml.source),\n reHasUnescapedHtml = RegExp(reUnescapedHtml.source);\n\n /** Used to match template delimiters. */\n var reEscape = /<%-([\\s\\S]+?)%>/g,\n reEvaluate = /<%([\\s\\S]+?)%>/g,\n reInterpolate = /<%=([\\s\\S]+?)%>/g;\n\n /** Used to match property names within property paths. */\n var reIsDeepProp = /\\.|\\[(?:[^[\\]]*|([\"'])(?:(?!\\1)[^\\\\]|\\\\.)*?\\1)\\]/,\n reIsPlainProp = /^\\w*$/,\n rePropName = /[^.[\\]]+|\\[(?:(-?\\d+(?:\\.\\d+)?)|([\"'])((?:(?!\\2)[^\\\\]|\\\\.)*?)\\2)\\]|(?=(?:\\.|\\[\\])(?:\\.|\\[\\]|$))/g;\n\n /**\n * Used to match `RegExp`\n * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).\n */\n var reRegExpChar = /[\\\\^$.*+?()[\\]{}|]/g,\n reHasRegExpChar = RegExp(reRegExpChar.source);\n\n /** Used to match leading whitespace. */\n var reTrimStart = /^\\s+/;\n\n /** Used to match a single whitespace character. */\n var reWhitespace = /\\s/;\n\n /** Used to match wrap detail comments. */\n var reWrapComment = /\\{(?:\\n\\/\\* \\[wrapped with .+\\] \\*\\/)?\\n?/,\n reWrapDetails = /\\{\\n\\/\\* \\[wrapped with (.+)\\] \\*/,\n reSplitDetails = /,? & /;\n\n /** Used to match words composed of alphanumeric characters. */\n var reAsciiWord = /[^\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\x7f]+/g;\n\n /**\n * Used to validate the `validate` option in `_.template` variable.\n *\n * Forbids characters which could potentially change the meaning of the function argument definition:\n * - \"(),\" (modification of function parameters)\n * - \"=\" (default value)\n * - \"[]{}\" (destructuring of function parameters)\n * - \"/\" (beginning of a comment)\n * - whitespace\n */\n var reForbiddenIdentifierChars = /[()=,{}\\[\\]\\/\\s]/;\n\n /** Used to match backslashes in property paths. */\n var reEscapeChar = /\\\\(\\\\)?/g;\n\n /**\n * Used to match\n * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).\n */\n var reEsTemplate = /\\$\\{([^\\\\}]*(?:\\\\.[^\\\\}]*)*)\\}/g;\n\n /** Used to match `RegExp` flags from their coerced string values. */\n var reFlags = /\\w*$/;\n\n /** Used to detect bad signed hexadecimal string values. */\n var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n /** Used to detect binary string values. */\n var reIsBinary = /^0b[01]+$/i;\n\n /** Used to detect host constructors (Safari). */\n var reIsHostCtor = /^\\[object .+?Constructor\\]$/;\n\n /** Used to detect octal string values. */\n var reIsOctal = /^0o[0-7]+$/i;\n\n /** Used to detect unsigned integer values. */\n var reIsUint = /^(?:0|[1-9]\\d*)$/;\n\n /** Used to match Latin Unicode letters (excluding mathematical operators). */\n var reLatin = /[\\xc0-\\xd6\\xd8-\\xf6\\xf8-\\xff\\u0100-\\u017f]/g;\n\n /** Used to ensure capturing order of template delimiters. */\n var reNoMatch = /($^)/;\n\n /** Used to match unescaped characters in compiled string literals. */\n var reUnescapedString = /['\\n\\r\\u2028\\u2029\\\\]/g;\n\n /** Used to compose unicode character classes. */\n var rsAstralRange = '\\\\ud800-\\\\udfff',\n rsComboMarksRange = '\\\\u0300-\\\\u036f',\n reComboHalfMarksRange = '\\\\ufe20-\\\\ufe2f',\n rsComboSymbolsRange = '\\\\u20d0-\\\\u20ff',\n rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,\n rsDingbatRange = '\\\\u2700-\\\\u27bf',\n rsLowerRange = 'a-z\\\\xdf-\\\\xf6\\\\xf8-\\\\xff',\n rsMathOpRange = '\\\\xac\\\\xb1\\\\xd7\\\\xf7',\n rsNonCharRange = '\\\\x00-\\\\x2f\\\\x3a-\\\\x40\\\\x5b-\\\\x60\\\\x7b-\\\\xbf',\n rsPunctuationRange = '\\\\u2000-\\\\u206f',\n rsSpaceRange = ' \\\\t\\\\x0b\\\\f\\\\xa0\\\\ufeff\\\\n\\\\r\\\\u2028\\\\u2029\\\\u1680\\\\u180e\\\\u2000\\\\u2001\\\\u2002\\\\u2003\\\\u2004\\\\u2005\\\\u2006\\\\u2007\\\\u2008\\\\u2009\\\\u200a\\\\u202f\\\\u205f\\\\u3000',\n rsUpperRange = 'A-Z\\\\xc0-\\\\xd6\\\\xd8-\\\\xde',\n rsVarRange = '\\\\ufe0e\\\\ufe0f',\n rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;\n\n /** Used to compose unicode capture groups. */\n var rsApos = \"['\\u2019]\",\n rsAstral = '[' + rsAstralRange + ']',\n rsBreak = '[' + rsBreakRange + ']',\n rsCombo = '[' + rsComboRange + ']',\n rsDigits = '\\\\d+',\n rsDingbat = '[' + rsDingbatRange + ']',\n rsLower = '[' + rsLowerRange + ']',\n rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',\n rsFitz = '\\\\ud83c[\\\\udffb-\\\\udfff]',\n rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',\n rsNonAstral = '[^' + rsAstralRange + ']',\n rsRegional = '(?:\\\\ud83c[\\\\udde6-\\\\uddff]){2}',\n rsSurrPair = '[\\\\ud800-\\\\udbff][\\\\udc00-\\\\udfff]',\n rsUpper = '[' + rsUpperRange + ']',\n rsZWJ = '\\\\u200d';\n\n /** Used to compose unicode regexes. */\n var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',\n rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',\n rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',\n rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',\n reOptMod = rsModifier + '?',\n rsOptVar = '[' + rsVarRange + ']?',\n rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',\n rsOrdLower = '\\\\d*(?:1st|2nd|3rd|(?![123])\\\\dth)(?=\\\\b|[A-Z_])',\n rsOrdUpper = '\\\\d*(?:1ST|2ND|3RD|(?![123])\\\\dTH)(?=\\\\b|[a-z_])',\n rsSeq = rsOptVar + reOptMod + rsOptJoin,\n rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,\n rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';\n\n /** Used to match apostrophes. */\n var reApos = RegExp(rsApos, 'g');\n\n /**\n * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and\n * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).\n */\n var reComboMark = RegExp(rsCombo, 'g');\n\n /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */\n var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');\n\n /** Used to match complex or compound words. */\n var reUnicodeWord = RegExp([\n rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',\n rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',\n rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,\n rsUpper + '+' + rsOptContrUpper,\n rsOrdUpper,\n rsOrdLower,\n rsDigits,\n rsEmoji\n ].join('|'), 'g');\n\n /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */\n var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']');\n\n /** Used to detect strings that need a more robust regexp to match words. */\n var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;\n\n /** Used to assign default `context` object properties. */\n var contextProps = [\n 'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',\n 'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',\n 'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',\n 'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',\n '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'\n ];\n\n /** Used to make template sourceURLs easier to identify. */\n var templateCounter = -1;\n\n /** Used to identify `toStringTag` values of typed arrays. */\n var typedArrayTags = {};\n typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =\n typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =\n typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =\n typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =\n typedArrayTags[uint32Tag] = true;\n typedArrayTags[argsTag] = typedArrayTags[arrayTag] =\n typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =\n typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =\n typedArrayTags[errorTag] = typedArrayTags[funcTag] =\n typedArrayTags[mapTag] = typedArrayTags[numberTag] =\n typedArrayTags[objectTag] = typedArrayTags[regexpTag] =\n typedArrayTags[setTag] = typedArrayTags[stringTag] =\n typedArrayTags[weakMapTag] = false;\n\n /** Used to identify `toStringTag` values supported by `_.clone`. */\n var cloneableTags = {};\n cloneableTags[argsTag] = cloneableTags[arrayTag] =\n cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =\n cloneableTags[boolTag] = cloneableTags[dateTag] =\n cloneableTags[float32Tag] = cloneableTags[float64Tag] =\n cloneableTags[int8Tag] = cloneableTags[int16Tag] =\n cloneableTags[int32Tag] = cloneableTags[mapTag] =\n cloneableTags[numberTag] = cloneableTags[objectTag] =\n cloneableTags[regexpTag] = cloneableTags[setTag] =\n cloneableTags[stringTag] = cloneableTags[symbolTag] =\n cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =\n cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;\n cloneableTags[errorTag] = cloneableTags[funcTag] =\n cloneableTags[weakMapTag] = false;\n\n /** Used to map Latin Unicode letters to basic Latin letters. */\n var deburredLetters = {\n // Latin-1 Supplement block.\n '\\xc0': 'A', '\\xc1': 'A', '\\xc2': 'A', '\\xc3': 'A', '\\xc4': 'A', '\\xc5': 'A',\n '\\xe0': 'a', '\\xe1': 'a', '\\xe2': 'a', '\\xe3': 'a', '\\xe4': 'a', '\\xe5': 'a',\n '\\xc7': 'C', '\\xe7': 'c',\n '\\xd0': 'D', '\\xf0': 'd',\n '\\xc8': 'E', '\\xc9': 'E', '\\xca': 'E', '\\xcb': 'E',\n '\\xe8': 'e', '\\xe9': 'e', '\\xea': 'e', '\\xeb': 'e',\n '\\xcc': 'I', '\\xcd': 'I', '\\xce': 'I', '\\xcf': 'I',\n '\\xec': 'i', '\\xed': 'i', '\\xee': 'i', '\\xef': 'i',\n '\\xd1': 'N', '\\xf1': 'n',\n '\\xd2': 'O', '\\xd3': 'O', '\\xd4': 'O', '\\xd5': 'O', '\\xd6': 'O', '\\xd8': 'O',\n '\\xf2': 'o', '\\xf3': 'o', '\\xf4': 'o', '\\xf5': 'o', '\\xf6': 'o', '\\xf8': 'o',\n '\\xd9': 'U', '\\xda': 'U', '\\xdb': 'U', '\\xdc': 'U',\n '\\xf9': 'u', '\\xfa': 'u', '\\xfb': 'u', '\\xfc': 'u',\n '\\xdd': 'Y', '\\xfd': 'y', '\\xff': 'y',\n '\\xc6': 'Ae', '\\xe6': 'ae',\n '\\xde': 'Th', '\\xfe': 'th',\n '\\xdf': 'ss',\n // Latin Extended-A block.\n '\\u0100': 'A', '\\u0102': 'A', '\\u0104': 'A',\n '\\u0101': 'a', '\\u0103': 'a', '\\u0105': 'a',\n '\\u0106': 'C', '\\u0108': 'C', '\\u010a': 'C', '\\u010c': 'C',\n '\\u0107': 'c', '\\u0109': 'c', '\\u010b': 'c', '\\u010d': 'c',\n '\\u010e': 'D', '\\u0110': 'D', '\\u010f': 'd', '\\u0111': 'd',\n '\\u0112': 'E', '\\u0114': 'E', '\\u0116': 'E', '\\u0118': 'E', '\\u011a': 'E',\n '\\u0113': 'e', '\\u0115': 'e', '\\u0117': 'e', '\\u0119': 'e', '\\u011b': 'e',\n '\\u011c': 'G', '\\u011e': 'G', '\\u0120': 'G', '\\u0122': 'G',\n '\\u011d': 'g', '\\u011f': 'g', '\\u0121': 'g', '\\u0123': 'g',\n '\\u0124': 'H', '\\u0126': 'H', '\\u0125': 'h', '\\u0127': 'h',\n '\\u0128': 'I', '\\u012a': 'I', '\\u012c': 'I', '\\u012e': 'I', '\\u0130': 'I',\n '\\u0129': 'i', '\\u012b': 'i', '\\u012d': 'i', '\\u012f': 'i', '\\u0131': 'i',\n '\\u0134': 'J', '\\u0135': 'j',\n '\\u0136': 'K', '\\u0137': 'k', '\\u0138': 'k',\n '\\u0139': 'L', '\\u013b': 'L', '\\u013d': 'L', '\\u013f': 'L', '\\u0141': 'L',\n '\\u013a': 'l', '\\u013c': 'l', '\\u013e': 'l', '\\u0140': 'l', '\\u0142': 'l',\n '\\u0143': 'N', '\\u0145': 'N', '\\u0147': 'N', '\\u014a': 'N',\n '\\u0144': 'n', '\\u0146': 'n', '\\u0148': 'n', '\\u014b': 'n',\n '\\u014c': 'O', '\\u014e': 'O', '\\u0150': 'O',\n '\\u014d': 'o', '\\u014f': 'o', '\\u0151': 'o',\n '\\u0154': 'R', '\\u0156': 'R', '\\u0158': 'R',\n '\\u0155': 'r', '\\u0157': 'r', '\\u0159': 'r',\n '\\u015a': 'S', '\\u015c': 'S', '\\u015e': 'S', '\\u0160': 'S',\n '\\u015b': 's', '\\u015d': 's', '\\u015f': 's', '\\u0161': 's',\n '\\u0162': 'T', '\\u0164': 'T', '\\u0166': 'T',\n '\\u0163': 't', '\\u0165': 't', '\\u0167': 't',\n '\\u0168': 'U', '\\u016a': 'U', '\\u016c': 'U', '\\u016e': 'U', '\\u0170': 'U', '\\u0172': 'U',\n '\\u0169': 'u', '\\u016b': 'u', '\\u016d': 'u', '\\u016f': 'u', '\\u0171': 'u', '\\u0173': 'u',\n '\\u0174': 'W', '\\u0175': 'w',\n '\\u0176': 'Y', '\\u0177': 'y', '\\u0178': 'Y',\n '\\u0179': 'Z', '\\u017b': 'Z', '\\u017d': 'Z',\n '\\u017a': 'z', '\\u017c': 'z', '\\u017e': 'z',\n '\\u0132': 'IJ', '\\u0133': 'ij',\n '\\u0152': 'Oe', '\\u0153': 'oe',\n '\\u0149': \"'n\", '\\u017f': 's'\n };\n\n /** Used to map characters to HTML entities. */\n var htmlEscapes = {\n '&': '&',\n '<': '<',\n '>': '>',\n '\"': '"',\n \"'\": '''\n };\n\n /** Used to map HTML entities to characters. */\n var htmlUnescapes = {\n '&': '&',\n '<': '<',\n '>': '>',\n '"': '\"',\n ''': \"'\"\n };\n\n /** Used to escape characters for inclusion in compiled string literals. */\n var stringEscapes = {\n '\\\\': '\\\\',\n \"'\": \"'\",\n '\\n': 'n',\n '\\r': 'r',\n '\\u2028': 'u2028',\n '\\u2029': 'u2029'\n };\n\n /** Built-in method references without a dependency on `root`. */\n var freeParseFloat = parseFloat,\n freeParseInt = parseInt;\n\n /** Detect free variable `global` from Node.js. */\n var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\n /** Detect free variable `self`. */\n var freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n /** Used as a reference to the global object. */\n var root = freeGlobal || freeSelf || Function('return this')();\n\n /** Detect free variable `exports`. */\n var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;\n\n /** Detect free variable `module`. */\n var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;\n\n /** Detect the popular CommonJS extension `module.exports`. */\n var moduleExports = freeModule && freeModule.exports === freeExports;\n\n /** Detect free variable `process` from Node.js. */\n var freeProcess = moduleExports && freeGlobal.process;\n\n /** Used to access faster Node.js helpers. */\n var nodeUtil = (function() {\n try {\n // Use `util.types` for Node.js 10+.\n var types = freeModule && freeModule.require && freeModule.require('util').types;\n\n if (types) {\n return types;\n }\n\n // Legacy `process.binding('util')` for Node.js < 10.\n return freeProcess && freeProcess.binding && freeProcess.binding('util');\n } catch (e) {}\n }());\n\n /* Node.js helper references. */\n var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,\n nodeIsDate = nodeUtil && nodeUtil.isDate,\n nodeIsMap = nodeUtil && nodeUtil.isMap,\n nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,\n nodeIsSet = nodeUtil && nodeUtil.isSet,\n nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;\n\n /*--------------------------------------------------------------------------*/\n\n /**\n * A faster alternative to `Function#apply`, this function invokes `func`\n * with the `this` binding of `thisArg` and the arguments of `args`.\n *\n * @private\n * @param {Function} func The function to invoke.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} args The arguments to invoke `func` with.\n * @returns {*} Returns the result of `func`.\n */\n function apply(func, thisArg, args) {\n switch (args.length) {\n case 0: return func.call(thisArg);\n case 1: return func.call(thisArg, args[0]);\n case 2: return func.call(thisArg, args[0], args[1]);\n case 3: return func.call(thisArg, args[0], args[1], args[2]);\n }\n return func.apply(thisArg, args);\n }\n\n /**\n * A specialized version of `baseAggregator` for arrays.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform keys.\n * @param {Object} accumulator The initial aggregated object.\n * @returns {Function} Returns `accumulator`.\n */\n function arrayAggregator(array, setter, iteratee, accumulator) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n var value = array[index];\n setter(accumulator, value, iteratee(value), array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.forEach` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\n function arrayEach(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (iteratee(array[index], index, array) === false) {\n break;\n }\n }\n return array;\n }\n\n /**\n * A specialized version of `_.forEachRight` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns `array`.\n */\n function arrayEachRight(array, iteratee) {\n var length = array == null ? 0 : array.length;\n\n while (length--) {\n if (iteratee(array[length], length, array) === false) {\n break;\n }\n }\n return array;\n }\n\n /**\n * A specialized version of `_.every` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`.\n */\n function arrayEvery(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (!predicate(array[index], index, array)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * A specialized version of `_.filter` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\n function arrayFilter(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result[resIndex++] = value;\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `_.includes` for arrays without support for\n * specifying an index to search from.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\n function arrayIncludes(array, value) {\n var length = array == null ? 0 : array.length;\n return !!length && baseIndexOf(array, value, 0) > -1;\n }\n\n /**\n * This function is like `arrayIncludes` except that it accepts a comparator.\n *\n * @private\n * @param {Array} [array] The array to inspect.\n * @param {*} target The value to search for.\n * @param {Function} comparator The comparator invoked per element.\n * @returns {boolean} Returns `true` if `target` is found, else `false`.\n */\n function arrayIncludesWith(array, value, comparator) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (comparator(value, array[index])) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * A specialized version of `_.map` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\n function arrayMap(array, iteratee) {\n var index = -1,\n length = array == null ? 0 : array.length,\n result = Array(length);\n\n while (++index < length) {\n result[index] = iteratee(array[index], index, array);\n }\n return result;\n }\n\n /**\n * Appends the elements of `values` to `array`.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to append.\n * @returns {Array} Returns `array`.\n */\n function arrayPush(array, values) {\n var index = -1,\n length = values.length,\n offset = array.length;\n\n while (++index < length) {\n array[offset + index] = values[index];\n }\n return array;\n }\n\n /**\n * A specialized version of `_.reduce` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the first element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\n function arrayReduce(array, iteratee, accumulator, initAccum) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n if (initAccum && length) {\n accumulator = array[++index];\n }\n while (++index < length) {\n accumulator = iteratee(accumulator, array[index], index, array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.reduceRight` for arrays without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @param {boolean} [initAccum] Specify using the last element of `array` as\n * the initial value.\n * @returns {*} Returns the accumulated value.\n */\n function arrayReduceRight(array, iteratee, accumulator, initAccum) {\n var length = array == null ? 0 : array.length;\n if (initAccum && length) {\n accumulator = array[--length];\n }\n while (length--) {\n accumulator = iteratee(accumulator, array[length], length, array);\n }\n return accumulator;\n }\n\n /**\n * A specialized version of `_.some` for arrays without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} [array] The array to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\n function arraySome(array, predicate) {\n var index = -1,\n length = array == null ? 0 : array.length;\n\n while (++index < length) {\n if (predicate(array[index], index, array)) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * Gets the size of an ASCII `string`.\n *\n * @private\n * @param {string} string The string inspect.\n * @returns {number} Returns the string size.\n */\n var asciiSize = baseProperty('length');\n\n /**\n * Converts an ASCII `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function asciiToArray(string) {\n return string.split('');\n }\n\n /**\n * Splits an ASCII `string` into an array of its words.\n *\n * @private\n * @param {string} The string to inspect.\n * @returns {Array} Returns the words of `string`.\n */\n function asciiWords(string) {\n return string.match(reAsciiWord) || [];\n }\n\n /**\n * The base implementation of methods like `_.findKey` and `_.findLastKey`,\n * without support for iteratee shorthands, which iterates over `collection`\n * using `eachFunc`.\n *\n * @private\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {Function} eachFunc The function to iterate over `collection`.\n * @returns {*} Returns the found element or its key, else `undefined`.\n */\n function baseFindKey(collection, predicate, eachFunc) {\n var result;\n eachFunc(collection, function(value, key, collection) {\n if (predicate(value, key, collection)) {\n result = key;\n return false;\n }\n });\n return result;\n }\n\n /**\n * The base implementation of `_.findIndex` and `_.findLastIndex` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} predicate The function invoked per iteration.\n * @param {number} fromIndex The index to search from.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseFindIndex(array, predicate, fromIndex, fromRight) {\n var length = array.length,\n index = fromIndex + (fromRight ? 1 : -1);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (predicate(array[index], index, array)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * The base implementation of `_.indexOf` without `fromIndex` bounds checks.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseIndexOf(array, value, fromIndex) {\n return value === value\n ? strictIndexOf(array, value, fromIndex)\n : baseFindIndex(array, baseIsNaN, fromIndex);\n }\n\n /**\n * This function is like `baseIndexOf` except that it accepts a comparator.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @param {Function} comparator The comparator invoked per element.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function baseIndexOfWith(array, value, fromIndex, comparator) {\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (comparator(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * The base implementation of `_.isNaN` without support for number objects.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n */\n function baseIsNaN(value) {\n return value !== value;\n }\n\n /**\n * The base implementation of `_.mean` and `_.meanBy` without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {number} Returns the mean.\n */\n function baseMean(array, iteratee) {\n var length = array == null ? 0 : array.length;\n return length ? (baseSum(array, iteratee) / length) : NAN;\n }\n\n /**\n * The base implementation of `_.property` without support for deep paths.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\n function baseProperty(key) {\n return function(object) {\n return object == null ? undefined : object[key];\n };\n }\n\n /**\n * The base implementation of `_.propertyOf` without support for deep paths.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Function} Returns the new accessor function.\n */\n function basePropertyOf(object) {\n return function(key) {\n return object == null ? undefined : object[key];\n };\n }\n\n /**\n * The base implementation of `_.reduce` and `_.reduceRight`, without support\n * for iteratee shorthands, which iterates over `collection` using `eachFunc`.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {*} accumulator The initial value.\n * @param {boolean} initAccum Specify using the first or last element of\n * `collection` as the initial value.\n * @param {Function} eachFunc The function to iterate over `collection`.\n * @returns {*} Returns the accumulated value.\n */\n function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {\n eachFunc(collection, function(value, index, collection) {\n accumulator = initAccum\n ? (initAccum = false, value)\n : iteratee(accumulator, value, index, collection);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.sortBy` which uses `comparer` to define the\n * sort order of `array` and replaces criteria objects with their corresponding\n * values.\n *\n * @private\n * @param {Array} array The array to sort.\n * @param {Function} comparer The function to define sort order.\n * @returns {Array} Returns `array`.\n */\n function baseSortBy(array, comparer) {\n var length = array.length;\n\n array.sort(comparer);\n while (length--) {\n array[length] = array[length].value;\n }\n return array;\n }\n\n /**\n * The base implementation of `_.sum` and `_.sumBy` without support for\n * iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {number} Returns the sum.\n */\n function baseSum(array, iteratee) {\n var result,\n index = -1,\n length = array.length;\n\n while (++index < length) {\n var current = iteratee(array[index]);\n if (current !== undefined) {\n result = result === undefined ? current : (result + current);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.times` without support for iteratee shorthands\n * or max array length checks.\n *\n * @private\n * @param {number} n The number of times to invoke `iteratee`.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the array of results.\n */\n function baseTimes(n, iteratee) {\n var index = -1,\n result = Array(n);\n\n while (++index < n) {\n result[index] = iteratee(index);\n }\n return result;\n }\n\n /**\n * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array\n * of key-value pairs for `object` corresponding to the property names of `props`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} props The property names to get values for.\n * @returns {Object} Returns the key-value pairs.\n */\n function baseToPairs(object, props) {\n return arrayMap(props, function(key) {\n return [key, object[key]];\n });\n }\n\n /**\n * The base implementation of `_.trim`.\n *\n * @private\n * @param {string} string The string to trim.\n * @returns {string} Returns the trimmed string.\n */\n function baseTrim(string) {\n return string\n ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')\n : string;\n }\n\n /**\n * The base implementation of `_.unary` without support for storing metadata.\n *\n * @private\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n */\n function baseUnary(func) {\n return function(value) {\n return func(value);\n };\n }\n\n /**\n * The base implementation of `_.values` and `_.valuesIn` which creates an\n * array of `object` property values corresponding to the property names\n * of `props`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} props The property names to get values for.\n * @returns {Object} Returns the array of property values.\n */\n function baseValues(object, props) {\n return arrayMap(props, function(key) {\n return object[key];\n });\n }\n\n /**\n * Checks if a `cache` value for `key` exists.\n *\n * @private\n * @param {Object} cache The cache to query.\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function cacheHas(cache, key) {\n return cache.has(key);\n }\n\n /**\n * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol\n * that is not found in the character symbols.\n *\n * @private\n * @param {Array} strSymbols The string symbols to inspect.\n * @param {Array} chrSymbols The character symbols to find.\n * @returns {number} Returns the index of the first unmatched string symbol.\n */\n function charsStartIndex(strSymbols, chrSymbols) {\n var index = -1,\n length = strSymbols.length;\n\n while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n return index;\n }\n\n /**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol\n * that is not found in the character symbols.\n *\n * @private\n * @param {Array} strSymbols The string symbols to inspect.\n * @param {Array} chrSymbols The character symbols to find.\n * @returns {number} Returns the index of the last unmatched string symbol.\n */\n function charsEndIndex(strSymbols, chrSymbols) {\n var index = strSymbols.length;\n\n while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}\n return index;\n }\n\n /**\n * Gets the number of `placeholder` occurrences in `array`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} placeholder The placeholder to search for.\n * @returns {number} Returns the placeholder count.\n */\n function countHolders(array, placeholder) {\n var length = array.length,\n result = 0;\n\n while (length--) {\n if (array[length] === placeholder) {\n ++result;\n }\n }\n return result;\n }\n\n /**\n * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A\n * letters to basic Latin letters.\n *\n * @private\n * @param {string} letter The matched letter to deburr.\n * @returns {string} Returns the deburred letter.\n */\n var deburrLetter = basePropertyOf(deburredLetters);\n\n /**\n * Used by `_.escape` to convert characters to HTML entities.\n *\n * @private\n * @param {string} chr The matched character to escape.\n * @returns {string} Returns the escaped character.\n */\n var escapeHtmlChar = basePropertyOf(htmlEscapes);\n\n /**\n * Used by `_.template` to escape characters for inclusion in compiled string literals.\n *\n * @private\n * @param {string} chr The matched character to escape.\n * @returns {string} Returns the escaped character.\n */\n function escapeStringChar(chr) {\n return '\\\\' + stringEscapes[chr];\n }\n\n /**\n * Gets the value at `key` of `object`.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\n function getValue(object, key) {\n return object == null ? undefined : object[key];\n }\n\n /**\n * Checks if `string` contains Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a symbol is found, else `false`.\n */\n function hasUnicode(string) {\n return reHasUnicode.test(string);\n }\n\n /**\n * Checks if `string` contains a word composed of Unicode symbols.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {boolean} Returns `true` if a word is found, else `false`.\n */\n function hasUnicodeWord(string) {\n return reHasUnicodeWord.test(string);\n }\n\n /**\n * Converts `iterator` to an array.\n *\n * @private\n * @param {Object} iterator The iterator to convert.\n * @returns {Array} Returns the converted array.\n */\n function iteratorToArray(iterator) {\n var data,\n result = [];\n\n while (!(data = iterator.next()).done) {\n result.push(data.value);\n }\n return result;\n }\n\n /**\n * Converts `map` to its key-value pairs.\n *\n * @private\n * @param {Object} map The map to convert.\n * @returns {Array} Returns the key-value pairs.\n */\n function mapToArray(map) {\n var index = -1,\n result = Array(map.size);\n\n map.forEach(function(value, key) {\n result[++index] = [key, value];\n });\n return result;\n }\n\n /**\n * Creates a unary function that invokes `func` with its argument transformed.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {Function} transform The argument transform.\n * @returns {Function} Returns the new function.\n */\n function overArg(func, transform) {\n return function(arg) {\n return func(transform(arg));\n };\n }\n\n /**\n * Replaces all `placeholder` elements in `array` with an internal placeholder\n * and returns an array of their indexes.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {*} placeholder The placeholder to replace.\n * @returns {Array} Returns the new array of placeholder indexes.\n */\n function replaceHolders(array, placeholder) {\n var index = -1,\n length = array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value === placeholder || value === PLACEHOLDER) {\n array[index] = PLACEHOLDER;\n result[resIndex++] = index;\n }\n }\n return result;\n }\n\n /**\n * Converts `set` to an array of its values.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the values.\n */\n function setToArray(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = value;\n });\n return result;\n }\n\n /**\n * Converts `set` to its value-value pairs.\n *\n * @private\n * @param {Object} set The set to convert.\n * @returns {Array} Returns the value-value pairs.\n */\n function setToPairs(set) {\n var index = -1,\n result = Array(set.size);\n\n set.forEach(function(value) {\n result[++index] = [value, value];\n });\n return result;\n }\n\n /**\n * A specialized version of `_.indexOf` which performs strict equality\n * comparisons of values, i.e. `===`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function strictIndexOf(array, value, fromIndex) {\n var index = fromIndex - 1,\n length = array.length;\n\n while (++index < length) {\n if (array[index] === value) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * A specialized version of `_.lastIndexOf` which performs strict equality\n * comparisons of values, i.e. `===`.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} fromIndex The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function strictLastIndexOf(array, value, fromIndex) {\n var index = fromIndex + 1;\n while (index--) {\n if (array[index] === value) {\n return index;\n }\n }\n return index;\n }\n\n /**\n * Gets the number of symbols in `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the string size.\n */\n function stringSize(string) {\n return hasUnicode(string)\n ? unicodeSize(string)\n : asciiSize(string);\n }\n\n /**\n * Converts `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function stringToArray(string) {\n return hasUnicode(string)\n ? unicodeToArray(string)\n : asciiToArray(string);\n }\n\n /**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace\n * character of `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the index of the last non-whitespace character.\n */\n function trimmedEndIndex(string) {\n var index = string.length;\n\n while (index-- && reWhitespace.test(string.charAt(index))) {}\n return index;\n }\n\n /**\n * Used by `_.unescape` to convert HTML entities to characters.\n *\n * @private\n * @param {string} chr The matched character to unescape.\n * @returns {string} Returns the unescaped character.\n */\n var unescapeHtmlChar = basePropertyOf(htmlUnescapes);\n\n /**\n * Gets the size of a Unicode `string`.\n *\n * @private\n * @param {string} string The string inspect.\n * @returns {number} Returns the string size.\n */\n function unicodeSize(string) {\n var result = reUnicode.lastIndex = 0;\n while (reUnicode.test(string)) {\n ++result;\n }\n return result;\n }\n\n /**\n * Converts a Unicode `string` to an array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the converted array.\n */\n function unicodeToArray(string) {\n return string.match(reUnicode) || [];\n }\n\n /**\n * Splits a Unicode `string` into an array of its words.\n *\n * @private\n * @param {string} The string to inspect.\n * @returns {Array} Returns the words of `string`.\n */\n function unicodeWords(string) {\n return string.match(reUnicodeWord) || [];\n }\n\n /*--------------------------------------------------------------------------*/\n\n /**\n * Create a new pristine `lodash` function using the `context` object.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Util\n * @param {Object} [context=root] The context object.\n * @returns {Function} Returns a new `lodash` function.\n * @example\n *\n * _.mixin({ 'foo': _.constant('foo') });\n *\n * var lodash = _.runInContext();\n * lodash.mixin({ 'bar': lodash.constant('bar') });\n *\n * _.isFunction(_.foo);\n * // => true\n * _.isFunction(_.bar);\n * // => false\n *\n * lodash.isFunction(lodash.foo);\n * // => false\n * lodash.isFunction(lodash.bar);\n * // => true\n *\n * // Create a suped-up `defer` in Node.js.\n * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;\n */\n var runInContext = (function runInContext(context) {\n context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));\n\n /** Built-in constructor references. */\n var Array = context.Array,\n Date = context.Date,\n Error = context.Error,\n Function = context.Function,\n Math = context.Math,\n Object = context.Object,\n RegExp = context.RegExp,\n String = context.String,\n TypeError = context.TypeError;\n\n /** Used for built-in method references. */\n var arrayProto = Array.prototype,\n funcProto = Function.prototype,\n objectProto = Object.prototype;\n\n /** Used to detect overreaching core-js shims. */\n var coreJsData = context['__core-js_shared__'];\n\n /** Used to resolve the decompiled source of functions. */\n var funcToString = funcProto.toString;\n\n /** Used to check objects for own properties. */\n var hasOwnProperty = objectProto.hasOwnProperty;\n\n /** Used to generate unique IDs. */\n var idCounter = 0;\n\n /** Used to detect methods masquerading as native. */\n var maskSrcKey = (function() {\n var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');\n return uid ? ('Symbol(src)_1.' + uid) : '';\n }());\n\n /**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\n var nativeObjectToString = objectProto.toString;\n\n /** Used to infer the `Object` constructor. */\n var objectCtorString = funcToString.call(Object);\n\n /** Used to restore the original `_` reference in `_.noConflict`. */\n var oldDash = root._;\n\n /** Used to detect if a method is native. */\n var reIsNative = RegExp('^' +\n funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\\\$&')\n .replace(/hasOwnProperty|(function).*?(?=\\\\\\()| for .+?(?=\\\\\\])/g, '$1.*?') + '$'\n );\n\n /** Built-in value references. */\n var Buffer = moduleExports ? context.Buffer : undefined,\n Symbol = context.Symbol,\n Uint8Array = context.Uint8Array,\n allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,\n getPrototype = overArg(Object.getPrototypeOf, Object),\n objectCreate = Object.create,\n propertyIsEnumerable = objectProto.propertyIsEnumerable,\n splice = arrayProto.splice,\n spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,\n symIterator = Symbol ? Symbol.iterator : undefined,\n symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n var defineProperty = (function() {\n try {\n var func = getNative(Object, 'defineProperty');\n func({}, '', {});\n return func;\n } catch (e) {}\n }());\n\n /** Mocked built-ins. */\n var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,\n ctxNow = Date && Date.now !== root.Date.now && Date.now,\n ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;\n\n /* Built-in method references for those with the same name as other `lodash` methods. */\n var nativeCeil = Math.ceil,\n nativeFloor = Math.floor,\n nativeGetSymbols = Object.getOwnPropertySymbols,\n nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,\n nativeIsFinite = context.isFinite,\n nativeJoin = arrayProto.join,\n nativeKeys = overArg(Object.keys, Object),\n nativeMax = Math.max,\n nativeMin = Math.min,\n nativeNow = Date.now,\n nativeParseInt = context.parseInt,\n nativeRandom = Math.random,\n nativeReverse = arrayProto.reverse;\n\n /* Built-in method references that are verified to be native. */\n var DataView = getNative(context, 'DataView'),\n Map = getNative(context, 'Map'),\n Promise = getNative(context, 'Promise'),\n Set = getNative(context, 'Set'),\n WeakMap = getNative(context, 'WeakMap'),\n nativeCreate = getNative(Object, 'create');\n\n /** Used to store function metadata. */\n var metaMap = WeakMap && new WeakMap;\n\n /** Used to lookup unminified function names. */\n var realNames = {};\n\n /** Used to detect maps, sets, and weakmaps. */\n var dataViewCtorString = toSource(DataView),\n mapCtorString = toSource(Map),\n promiseCtorString = toSource(Promise),\n setCtorString = toSource(Set),\n weakMapCtorString = toSource(WeakMap);\n\n /** Used to convert symbols to primitives and strings. */\n var symbolProto = Symbol ? Symbol.prototype : undefined,\n symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,\n symbolToString = symbolProto ? symbolProto.toString : undefined;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a `lodash` object which wraps `value` to enable implicit method\n * chain sequences. Methods that operate on and return arrays, collections,\n * and functions can be chained together. Methods that retrieve a single value\n * or may return a primitive value will automatically end the chain sequence\n * and return the unwrapped value. Otherwise, the value must be unwrapped\n * with `_#value`.\n *\n * Explicit chain sequences, which must be unwrapped with `_#value`, may be\n * enabled using `_.chain`.\n *\n * The execution of chained methods is lazy, that is, it's deferred until\n * `_#value` is implicitly or explicitly called.\n *\n * Lazy evaluation allows several methods to support shortcut fusion.\n * Shortcut fusion is an optimization to merge iteratee calls; this avoids\n * the creation of intermediate arrays and can greatly reduce the number of\n * iteratee executions. Sections of a chain sequence qualify for shortcut\n * fusion if the section is applied to an array and iteratees accept only\n * one argument. The heuristic for whether a section qualifies for shortcut\n * fusion is subject to change.\n *\n * Chaining is supported in custom builds as long as the `_#value` method is\n * directly or indirectly included in the build.\n *\n * In addition to lodash methods, wrappers have `Array` and `String` methods.\n *\n * The wrapper `Array` methods are:\n * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`\n *\n * The wrapper `String` methods are:\n * `replace` and `split`\n *\n * The wrapper methods that support shortcut fusion are:\n * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,\n * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,\n * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`\n *\n * The chainable wrapper methods are:\n * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,\n * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,\n * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,\n * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,\n * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,\n * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,\n * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,\n * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,\n * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,\n * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,\n * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,\n * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,\n * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,\n * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,\n * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,\n * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,\n * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,\n * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,\n * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,\n * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,\n * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,\n * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,\n * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,\n * `zipObject`, `zipObjectDeep`, and `zipWith`\n *\n * The wrapper methods that are **not** chainable by default are:\n * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,\n * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,\n * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,\n * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,\n * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,\n * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,\n * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,\n * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,\n * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,\n * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,\n * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,\n * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,\n * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,\n * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,\n * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,\n * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,\n * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,\n * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,\n * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,\n * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,\n * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,\n * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,\n * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,\n * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,\n * `upperFirst`, `value`, and `words`\n *\n * @name _\n * @constructor\n * @category Seq\n * @param {*} value The value to wrap in a `lodash` instance.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var wrapped = _([1, 2, 3]);\n *\n * // Returns an unwrapped value.\n * wrapped.reduce(_.add);\n * // => 6\n *\n * // Returns a wrapped value.\n * var squares = wrapped.map(square);\n *\n * _.isArray(squares);\n * // => false\n *\n * _.isArray(squares.value());\n * // => true\n */\n function lodash(value) {\n if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {\n if (value instanceof LodashWrapper) {\n return value;\n }\n if (hasOwnProperty.call(value, '__wrapped__')) {\n return wrapperClone(value);\n }\n }\n return new LodashWrapper(value);\n }\n\n /**\n * The base implementation of `_.create` without support for assigning\n * properties to the created object.\n *\n * @private\n * @param {Object} proto The object to inherit from.\n * @returns {Object} Returns the new object.\n */\n var baseCreate = (function() {\n function object() {}\n return function(proto) {\n if (!isObject(proto)) {\n return {};\n }\n if (objectCreate) {\n return objectCreate(proto);\n }\n object.prototype = proto;\n var result = new object;\n object.prototype = undefined;\n return result;\n };\n }());\n\n /**\n * The function whose prototype chain sequence wrappers inherit from.\n *\n * @private\n */\n function baseLodash() {\n // No operation performed.\n }\n\n /**\n * The base constructor for creating `lodash` wrapper objects.\n *\n * @private\n * @param {*} value The value to wrap.\n * @param {boolean} [chainAll] Enable explicit method chain sequences.\n */\n function LodashWrapper(value, chainAll) {\n this.__wrapped__ = value;\n this.__actions__ = [];\n this.__chain__ = !!chainAll;\n this.__index__ = 0;\n this.__values__ = undefined;\n }\n\n /**\n * By default, the template delimiters used by lodash are like those in\n * embedded Ruby (ERB) as well as ES2015 template strings. Change the\n * following template settings to use alternative delimiters.\n *\n * @static\n * @memberOf _\n * @type {Object}\n */\n lodash.templateSettings = {\n\n /**\n * Used to detect `data` property values to be HTML-escaped.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'escape': reEscape,\n\n /**\n * Used to detect code to be evaluated.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'evaluate': reEvaluate,\n\n /**\n * Used to detect `data` property values to inject.\n *\n * @memberOf _.templateSettings\n * @type {RegExp}\n */\n 'interpolate': reInterpolate,\n\n /**\n * Used to reference the data object in the template text.\n *\n * @memberOf _.templateSettings\n * @type {string}\n */\n 'variable': '',\n\n /**\n * Used to import variables into the compiled template.\n *\n * @memberOf _.templateSettings\n * @type {Object}\n */\n 'imports': {\n\n /**\n * A reference to the `lodash` function.\n *\n * @memberOf _.templateSettings.imports\n * @type {Function}\n */\n '_': lodash\n }\n };\n\n // Ensure wrappers are instances of `baseLodash`.\n lodash.prototype = baseLodash.prototype;\n lodash.prototype.constructor = lodash;\n\n LodashWrapper.prototype = baseCreate(baseLodash.prototype);\n LodashWrapper.prototype.constructor = LodashWrapper;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.\n *\n * @private\n * @constructor\n * @param {*} value The value to wrap.\n */\n function LazyWrapper(value) {\n this.__wrapped__ = value;\n this.__actions__ = [];\n this.__dir__ = 1;\n this.__filtered__ = false;\n this.__iteratees__ = [];\n this.__takeCount__ = MAX_ARRAY_LENGTH;\n this.__views__ = [];\n }\n\n /**\n * Creates a clone of the lazy wrapper object.\n *\n * @private\n * @name clone\n * @memberOf LazyWrapper\n * @returns {Object} Returns the cloned `LazyWrapper` object.\n */\n function lazyClone() {\n var result = new LazyWrapper(this.__wrapped__);\n result.__actions__ = copyArray(this.__actions__);\n result.__dir__ = this.__dir__;\n result.__filtered__ = this.__filtered__;\n result.__iteratees__ = copyArray(this.__iteratees__);\n result.__takeCount__ = this.__takeCount__;\n result.__views__ = copyArray(this.__views__);\n return result;\n }\n\n /**\n * Reverses the direction of lazy iteration.\n *\n * @private\n * @name reverse\n * @memberOf LazyWrapper\n * @returns {Object} Returns the new reversed `LazyWrapper` object.\n */\n function lazyReverse() {\n if (this.__filtered__) {\n var result = new LazyWrapper(this);\n result.__dir__ = -1;\n result.__filtered__ = true;\n } else {\n result = this.clone();\n result.__dir__ *= -1;\n }\n return result;\n }\n\n /**\n * Extracts the unwrapped value from its lazy wrapper.\n *\n * @private\n * @name value\n * @memberOf LazyWrapper\n * @returns {*} Returns the unwrapped value.\n */\n function lazyValue() {\n var array = this.__wrapped__.value(),\n dir = this.__dir__,\n isArr = isArray(array),\n isRight = dir < 0,\n arrLength = isArr ? array.length : 0,\n view = getView(0, arrLength, this.__views__),\n start = view.start,\n end = view.end,\n length = end - start,\n index = isRight ? end : (start - 1),\n iteratees = this.__iteratees__,\n iterLength = iteratees.length,\n resIndex = 0,\n takeCount = nativeMin(length, this.__takeCount__);\n\n if (!isArr || (!isRight && arrLength == length && takeCount == length)) {\n return baseWrapperValue(array, this.__actions__);\n }\n var result = [];\n\n outer:\n while (length-- && resIndex < takeCount) {\n index += dir;\n\n var iterIndex = -1,\n value = array[index];\n\n while (++iterIndex < iterLength) {\n var data = iteratees[iterIndex],\n iteratee = data.iteratee,\n type = data.type,\n computed = iteratee(value);\n\n if (type == LAZY_MAP_FLAG) {\n value = computed;\n } else if (!computed) {\n if (type == LAZY_FILTER_FLAG) {\n continue outer;\n } else {\n break outer;\n }\n }\n }\n result[resIndex++] = value;\n }\n return result;\n }\n\n // Ensure `LazyWrapper` is an instance of `baseLodash`.\n LazyWrapper.prototype = baseCreate(baseLodash.prototype);\n LazyWrapper.prototype.constructor = LazyWrapper;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a hash object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function Hash(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the hash.\n *\n * @private\n * @name clear\n * @memberOf Hash\n */\n function hashClear() {\n this.__data__ = nativeCreate ? nativeCreate(null) : {};\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the hash.\n *\n * @private\n * @name delete\n * @memberOf Hash\n * @param {Object} hash The hash to modify.\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function hashDelete(key) {\n var result = this.has(key) && delete this.__data__[key];\n this.size -= result ? 1 : 0;\n return result;\n }\n\n /**\n * Gets the hash value for `key`.\n *\n * @private\n * @name get\n * @memberOf Hash\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function hashGet(key) {\n var data = this.__data__;\n if (nativeCreate) {\n var result = data[key];\n return result === HASH_UNDEFINED ? undefined : result;\n }\n return hasOwnProperty.call(data, key) ? data[key] : undefined;\n }\n\n /**\n * Checks if a hash value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Hash\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function hashHas(key) {\n var data = this.__data__;\n return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);\n }\n\n /**\n * Sets the hash `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Hash\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the hash instance.\n */\n function hashSet(key, value) {\n var data = this.__data__;\n this.size += this.has(key) ? 0 : 1;\n data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;\n return this;\n }\n\n // Add methods to `Hash`.\n Hash.prototype.clear = hashClear;\n Hash.prototype['delete'] = hashDelete;\n Hash.prototype.get = hashGet;\n Hash.prototype.has = hashHas;\n Hash.prototype.set = hashSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an list cache object.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function ListCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the list cache.\n *\n * @private\n * @name clear\n * @memberOf ListCache\n */\n function listCacheClear() {\n this.__data__ = [];\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the list cache.\n *\n * @private\n * @name delete\n * @memberOf ListCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function listCacheDelete(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n return false;\n }\n var lastIndex = data.length - 1;\n if (index == lastIndex) {\n data.pop();\n } else {\n splice.call(data, index, 1);\n }\n --this.size;\n return true;\n }\n\n /**\n * Gets the list cache value for `key`.\n *\n * @private\n * @name get\n * @memberOf ListCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function listCacheGet(key) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n return index < 0 ? undefined : data[index][1];\n }\n\n /**\n * Checks if a list cache value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf ListCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function listCacheHas(key) {\n return assocIndexOf(this.__data__, key) > -1;\n }\n\n /**\n * Sets the list cache `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf ListCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the list cache instance.\n */\n function listCacheSet(key, value) {\n var data = this.__data__,\n index = assocIndexOf(data, key);\n\n if (index < 0) {\n ++this.size;\n data.push([key, value]);\n } else {\n data[index][1] = value;\n }\n return this;\n }\n\n // Add methods to `ListCache`.\n ListCache.prototype.clear = listCacheClear;\n ListCache.prototype['delete'] = listCacheDelete;\n ListCache.prototype.get = listCacheGet;\n ListCache.prototype.has = listCacheHas;\n ListCache.prototype.set = listCacheSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a map cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function MapCache(entries) {\n var index = -1,\n length = entries == null ? 0 : entries.length;\n\n this.clear();\n while (++index < length) {\n var entry = entries[index];\n this.set(entry[0], entry[1]);\n }\n }\n\n /**\n * Removes all key-value entries from the map.\n *\n * @private\n * @name clear\n * @memberOf MapCache\n */\n function mapCacheClear() {\n this.size = 0;\n this.__data__ = {\n 'hash': new Hash,\n 'map': new (Map || ListCache),\n 'string': new Hash\n };\n }\n\n /**\n * Removes `key` and its value from the map.\n *\n * @private\n * @name delete\n * @memberOf MapCache\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function mapCacheDelete(key) {\n var result = getMapData(this, key)['delete'](key);\n this.size -= result ? 1 : 0;\n return result;\n }\n\n /**\n * Gets the map value for `key`.\n *\n * @private\n * @name get\n * @memberOf MapCache\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function mapCacheGet(key) {\n return getMapData(this, key).get(key);\n }\n\n /**\n * Checks if a map value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf MapCache\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function mapCacheHas(key) {\n return getMapData(this, key).has(key);\n }\n\n /**\n * Sets the map `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf MapCache\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the map cache instance.\n */\n function mapCacheSet(key, value) {\n var data = getMapData(this, key),\n size = data.size;\n\n data.set(key, value);\n this.size += data.size == size ? 0 : 1;\n return this;\n }\n\n // Add methods to `MapCache`.\n MapCache.prototype.clear = mapCacheClear;\n MapCache.prototype['delete'] = mapCacheDelete;\n MapCache.prototype.get = mapCacheGet;\n MapCache.prototype.has = mapCacheHas;\n MapCache.prototype.set = mapCacheSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n *\n * Creates an array cache object to store unique values.\n *\n * @private\n * @constructor\n * @param {Array} [values] The values to cache.\n */\n function SetCache(values) {\n var index = -1,\n length = values == null ? 0 : values.length;\n\n this.__data__ = new MapCache;\n while (++index < length) {\n this.add(values[index]);\n }\n }\n\n /**\n * Adds `value` to the array cache.\n *\n * @private\n * @name add\n * @memberOf SetCache\n * @alias push\n * @param {*} value The value to cache.\n * @returns {Object} Returns the cache instance.\n */\n function setCacheAdd(value) {\n this.__data__.set(value, HASH_UNDEFINED);\n return this;\n }\n\n /**\n * Checks if `value` is in the array cache.\n *\n * @private\n * @name has\n * @memberOf SetCache\n * @param {*} value The value to search for.\n * @returns {number} Returns `true` if `value` is found, else `false`.\n */\n function setCacheHas(value) {\n return this.__data__.has(value);\n }\n\n // Add methods to `SetCache`.\n SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;\n SetCache.prototype.has = setCacheHas;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a stack cache object to store key-value pairs.\n *\n * @private\n * @constructor\n * @param {Array} [entries] The key-value pairs to cache.\n */\n function Stack(entries) {\n var data = this.__data__ = new ListCache(entries);\n this.size = data.size;\n }\n\n /**\n * Removes all key-value entries from the stack.\n *\n * @private\n * @name clear\n * @memberOf Stack\n */\n function stackClear() {\n this.__data__ = new ListCache;\n this.size = 0;\n }\n\n /**\n * Removes `key` and its value from the stack.\n *\n * @private\n * @name delete\n * @memberOf Stack\n * @param {string} key The key of the value to remove.\n * @returns {boolean} Returns `true` if the entry was removed, else `false`.\n */\n function stackDelete(key) {\n var data = this.__data__,\n result = data['delete'](key);\n\n this.size = data.size;\n return result;\n }\n\n /**\n * Gets the stack value for `key`.\n *\n * @private\n * @name get\n * @memberOf Stack\n * @param {string} key The key of the value to get.\n * @returns {*} Returns the entry value.\n */\n function stackGet(key) {\n return this.__data__.get(key);\n }\n\n /**\n * Checks if a stack value for `key` exists.\n *\n * @private\n * @name has\n * @memberOf Stack\n * @param {string} key The key of the entry to check.\n * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.\n */\n function stackHas(key) {\n return this.__data__.has(key);\n }\n\n /**\n * Sets the stack `key` to `value`.\n *\n * @private\n * @name set\n * @memberOf Stack\n * @param {string} key The key of the value to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns the stack cache instance.\n */\n function stackSet(key, value) {\n var data = this.__data__;\n if (data instanceof ListCache) {\n var pairs = data.__data__;\n if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {\n pairs.push([key, value]);\n this.size = ++data.size;\n return this;\n }\n data = this.__data__ = new MapCache(pairs);\n }\n data.set(key, value);\n this.size = data.size;\n return this;\n }\n\n // Add methods to `Stack`.\n Stack.prototype.clear = stackClear;\n Stack.prototype['delete'] = stackDelete;\n Stack.prototype.get = stackGet;\n Stack.prototype.has = stackHas;\n Stack.prototype.set = stackSet;\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an array of the enumerable property names of the array-like `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @param {boolean} inherited Specify returning inherited property names.\n * @returns {Array} Returns the array of property names.\n */\n function arrayLikeKeys(value, inherited) {\n var isArr = isArray(value),\n isArg = !isArr && isArguments(value),\n isBuff = !isArr && !isArg && isBuffer(value),\n isType = !isArr && !isArg && !isBuff && isTypedArray(value),\n skipIndexes = isArr || isArg || isBuff || isType,\n result = skipIndexes ? baseTimes(value.length, String) : [],\n length = result.length;\n\n for (var key in value) {\n if ((inherited || hasOwnProperty.call(value, key)) &&\n !(skipIndexes && (\n // Safari 9 has enumerable `arguments.length` in strict mode.\n key == 'length' ||\n // Node.js 0.10 has enumerable non-index properties on buffers.\n (isBuff && (key == 'offset' || key == 'parent')) ||\n // PhantomJS 2 has enumerable non-index properties on typed arrays.\n (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||\n // Skip index properties.\n isIndex(key, length)\n ))) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `_.sample` for arrays.\n *\n * @private\n * @param {Array} array The array to sample.\n * @returns {*} Returns the random element.\n */\n function arraySample(array) {\n var length = array.length;\n return length ? array[baseRandom(0, length - 1)] : undefined;\n }\n\n /**\n * A specialized version of `_.sampleSize` for arrays.\n *\n * @private\n * @param {Array} array The array to sample.\n * @param {number} n The number of elements to sample.\n * @returns {Array} Returns the random elements.\n */\n function arraySampleSize(array, n) {\n return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));\n }\n\n /**\n * A specialized version of `_.shuffle` for arrays.\n *\n * @private\n * @param {Array} array The array to shuffle.\n * @returns {Array} Returns the new shuffled array.\n */\n function arrayShuffle(array) {\n return shuffleSelf(copyArray(array));\n }\n\n /**\n * This function is like `assignValue` except that it doesn't assign\n * `undefined` values.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function assignMergeValue(object, key, value) {\n if ((value !== undefined && !eq(object[key], value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n }\n\n /**\n * Assigns `value` to `key` of `object` if the existing value is not equivalent\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function assignValue(object, key, value) {\n var objValue = object[key];\n if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||\n (value === undefined && !(key in object))) {\n baseAssignValue(object, key, value);\n }\n }\n\n /**\n * Gets the index at which the `key` is found in `array` of key-value pairs.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {*} key The key to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n */\n function assocIndexOf(array, key) {\n var length = array.length;\n while (length--) {\n if (eq(array[length][0], key)) {\n return length;\n }\n }\n return -1;\n }\n\n /**\n * Aggregates elements of `collection` on `accumulator` with keys transformed\n * by `iteratee` and values set by `setter`.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform keys.\n * @param {Object} accumulator The initial aggregated object.\n * @returns {Function} Returns `accumulator`.\n */\n function baseAggregator(collection, setter, iteratee, accumulator) {\n baseEach(collection, function(value, key, collection) {\n setter(accumulator, value, iteratee(value), collection);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.assign` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\n function baseAssign(object, source) {\n return object && copyObject(source, keys(source), object);\n }\n\n /**\n * The base implementation of `_.assignIn` without support for multiple sources\n * or `customizer` functions.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @returns {Object} Returns `object`.\n */\n function baseAssignIn(object, source) {\n return object && copyObject(source, keysIn(source), object);\n }\n\n /**\n * The base implementation of `assignValue` and `assignMergeValue` without\n * value checks.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {string} key The key of the property to assign.\n * @param {*} value The value to assign.\n */\n function baseAssignValue(object, key, value) {\n if (key == '__proto__' && defineProperty) {\n defineProperty(object, key, {\n 'configurable': true,\n 'enumerable': true,\n 'value': value,\n 'writable': true\n });\n } else {\n object[key] = value;\n }\n }\n\n /**\n * The base implementation of `_.at` without support for individual paths.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {string[]} paths The property paths to pick.\n * @returns {Array} Returns the picked elements.\n */\n function baseAt(object, paths) {\n var index = -1,\n length = paths.length,\n result = Array(length),\n skip = object == null;\n\n while (++index < length) {\n result[index] = skip ? undefined : get(object, paths[index]);\n }\n return result;\n }\n\n /**\n * The base implementation of `_.clamp` which doesn't coerce arguments.\n *\n * @private\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n */\n function baseClamp(number, lower, upper) {\n if (number === number) {\n if (upper !== undefined) {\n number = number <= upper ? number : upper;\n }\n if (lower !== undefined) {\n number = number >= lower ? number : lower;\n }\n }\n return number;\n }\n\n /**\n * The base implementation of `_.clone` and `_.cloneDeep` which tracks\n * traversed objects.\n *\n * @private\n * @param {*} value The value to clone.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Deep clone\n * 2 - Flatten inherited properties\n * 4 - Clone symbols\n * @param {Function} [customizer] The function to customize cloning.\n * @param {string} [key] The key of `value`.\n * @param {Object} [object] The parent object of `value`.\n * @param {Object} [stack] Tracks traversed objects and their clone counterparts.\n * @returns {*} Returns the cloned value.\n */\n function baseClone(value, bitmask, customizer, key, object, stack) {\n var result,\n isDeep = bitmask & CLONE_DEEP_FLAG,\n isFlat = bitmask & CLONE_FLAT_FLAG,\n isFull = bitmask & CLONE_SYMBOLS_FLAG;\n\n if (customizer) {\n result = object ? customizer(value, key, object, stack) : customizer(value);\n }\n if (result !== undefined) {\n return result;\n }\n if (!isObject(value)) {\n return value;\n }\n var isArr = isArray(value);\n if (isArr) {\n result = initCloneArray(value);\n if (!isDeep) {\n return copyArray(value, result);\n }\n } else {\n var tag = getTag(value),\n isFunc = tag == funcTag || tag == genTag;\n\n if (isBuffer(value)) {\n return cloneBuffer(value, isDeep);\n }\n if (tag == objectTag || tag == argsTag || (isFunc && !object)) {\n result = (isFlat || isFunc) ? {} : initCloneObject(value);\n if (!isDeep) {\n return isFlat\n ? copySymbolsIn(value, baseAssignIn(result, value))\n : copySymbols(value, baseAssign(result, value));\n }\n } else {\n if (!cloneableTags[tag]) {\n return object ? value : {};\n }\n result = initCloneByTag(value, tag, isDeep);\n }\n }\n // Check for circular references and return its corresponding clone.\n stack || (stack = new Stack);\n var stacked = stack.get(value);\n if (stacked) {\n return stacked;\n }\n stack.set(value, result);\n\n if (isSet(value)) {\n value.forEach(function(subValue) {\n result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));\n });\n } else if (isMap(value)) {\n value.forEach(function(subValue, key) {\n result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n }\n\n var keysFunc = isFull\n ? (isFlat ? getAllKeysIn : getAllKeys)\n : (isFlat ? keysIn : keys);\n\n var props = isArr ? undefined : keysFunc(value);\n arrayEach(props || value, function(subValue, key) {\n if (props) {\n key = subValue;\n subValue = value[key];\n }\n // Recursively populate clone (susceptible to call stack limits).\n assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));\n });\n return result;\n }\n\n /**\n * The base implementation of `_.conforms` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property predicates to conform to.\n * @returns {Function} Returns the new spec function.\n */\n function baseConforms(source) {\n var props = keys(source);\n return function(object) {\n return baseConformsTo(object, source, props);\n };\n }\n\n /**\n * The base implementation of `_.conformsTo` which accepts `props` to check.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property predicates to conform to.\n * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n */\n function baseConformsTo(object, source, props) {\n var length = props.length;\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (length--) {\n var key = props[length],\n predicate = source[key],\n value = object[key];\n\n if ((value === undefined && !(key in object)) || !predicate(value)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * The base implementation of `_.delay` and `_.defer` which accepts `args`\n * to provide to `func`.\n *\n * @private\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @param {Array} args The arguments to provide to `func`.\n * @returns {number|Object} Returns the timer id or timeout object.\n */\n function baseDelay(func, wait, args) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n return setTimeout(function() { func.apply(undefined, args); }, wait);\n }\n\n /**\n * The base implementation of methods like `_.difference` without support\n * for excluding multiple arrays or iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Array} values The values to exclude.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n */\n function baseDifference(array, values, iteratee, comparator) {\n var index = -1,\n includes = arrayIncludes,\n isCommon = true,\n length = array.length,\n result = [],\n valuesLength = values.length;\n\n if (!length) {\n return result;\n }\n if (iteratee) {\n values = arrayMap(values, baseUnary(iteratee));\n }\n if (comparator) {\n includes = arrayIncludesWith;\n isCommon = false;\n }\n else if (values.length >= LARGE_ARRAY_SIZE) {\n includes = cacheHas;\n isCommon = false;\n values = new SetCache(values);\n }\n outer:\n while (++index < length) {\n var value = array[index],\n computed = iteratee == null ? value : iteratee(value);\n\n value = (comparator || value !== 0) ? value : 0;\n if (isCommon && computed === computed) {\n var valuesIndex = valuesLength;\n while (valuesIndex--) {\n if (values[valuesIndex] === computed) {\n continue outer;\n }\n }\n result.push(value);\n }\n else if (!includes(values, computed, comparator)) {\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.forEach` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\n var baseEach = createBaseEach(baseForOwn);\n\n /**\n * The base implementation of `_.forEachRight` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n */\n var baseEachRight = createBaseEach(baseForOwnRight, true);\n\n /**\n * The base implementation of `_.every` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`\n */\n function baseEvery(collection, predicate) {\n var result = true;\n baseEach(collection, function(value, index, collection) {\n result = !!predicate(value, index, collection);\n return result;\n });\n return result;\n }\n\n /**\n * The base implementation of methods like `_.max` and `_.min` which accepts a\n * `comparator` to determine the extremum value.\n *\n * @private\n * @param {Array} array The array to iterate over.\n * @param {Function} iteratee The iteratee invoked per iteration.\n * @param {Function} comparator The comparator used to compare values.\n * @returns {*} Returns the extremum value.\n */\n function baseExtremum(array, iteratee, comparator) {\n var index = -1,\n length = array.length;\n\n while (++index < length) {\n var value = array[index],\n current = iteratee(value);\n\n if (current != null && (computed === undefined\n ? (current === current && !isSymbol(current))\n : comparator(current, computed)\n )) {\n var computed = current,\n result = value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.fill` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to fill.\n * @param {*} value The value to fill `array` with.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns `array`.\n */\n function baseFill(array, value, start, end) {\n var length = array.length;\n\n start = toInteger(start);\n if (start < 0) {\n start = -start > length ? 0 : (length + start);\n }\n end = (end === undefined || end > length) ? length : toInteger(end);\n if (end < 0) {\n end += length;\n }\n end = start > end ? 0 : toLength(end);\n while (start < end) {\n array[start++] = value;\n }\n return array;\n }\n\n /**\n * The base implementation of `_.filter` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n */\n function baseFilter(collection, predicate) {\n var result = [];\n baseEach(collection, function(value, index, collection) {\n if (predicate(value, index, collection)) {\n result.push(value);\n }\n });\n return result;\n }\n\n /**\n * The base implementation of `_.flatten` with support for restricting flattening.\n *\n * @private\n * @param {Array} array The array to flatten.\n * @param {number} depth The maximum recursion depth.\n * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.\n * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.\n * @param {Array} [result=[]] The initial result value.\n * @returns {Array} Returns the new flattened array.\n */\n function baseFlatten(array, depth, predicate, isStrict, result) {\n var index = -1,\n length = array.length;\n\n predicate || (predicate = isFlattenable);\n result || (result = []);\n\n while (++index < length) {\n var value = array[index];\n if (depth > 0 && predicate(value)) {\n if (depth > 1) {\n // Recursively flatten arrays (susceptible to call stack limits).\n baseFlatten(value, depth - 1, predicate, isStrict, result);\n } else {\n arrayPush(result, value);\n }\n } else if (!isStrict) {\n result[result.length] = value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `baseForOwn` which iterates over `object`\n * properties returned by `keysFunc` and invokes `iteratee` for each property.\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\n var baseFor = createBaseFor();\n\n /**\n * This function is like `baseFor` except that it iterates over properties\n * in the opposite order.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @returns {Object} Returns `object`.\n */\n var baseForRight = createBaseFor(true);\n\n /**\n * The base implementation of `_.forOwn` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\n function baseForOwn(object, iteratee) {\n return object && baseFor(object, iteratee, keys);\n }\n\n /**\n * The base implementation of `_.forOwnRight` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Object} Returns `object`.\n */\n function baseForOwnRight(object, iteratee) {\n return object && baseForRight(object, iteratee, keys);\n }\n\n /**\n * The base implementation of `_.functions` which creates an array of\n * `object` function property names filtered from `props`.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Array} props The property names to filter.\n * @returns {Array} Returns the function names.\n */\n function baseFunctions(object, props) {\n return arrayFilter(props, function(key) {\n return isFunction(object[key]);\n });\n }\n\n /**\n * The base implementation of `_.get` without support for default values.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @returns {*} Returns the resolved value.\n */\n function baseGet(object, path) {\n path = castPath(path, object);\n\n var index = 0,\n length = path.length;\n\n while (object != null && index < length) {\n object = object[toKey(path[index++])];\n }\n return (index && index == length) ? object : undefined;\n }\n\n /**\n * The base implementation of `getAllKeys` and `getAllKeysIn` which uses\n * `keysFunc` and `symbolsFunc` to get the enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Function} keysFunc The function to get the keys of `object`.\n * @param {Function} symbolsFunc The function to get the symbols of `object`.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function baseGetAllKeys(object, keysFunc, symbolsFunc) {\n var result = keysFunc(object);\n return isArray(object) ? result : arrayPush(result, symbolsFunc(object));\n }\n\n /**\n * The base implementation of `getTag` without fallbacks for buggy environments.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\n function baseGetTag(value) {\n if (value == null) {\n return value === undefined ? undefinedTag : nullTag;\n }\n return (symToStringTag && symToStringTag in Object(value))\n ? getRawTag(value)\n : objectToString(value);\n }\n\n /**\n * The base implementation of `_.gt` which doesn't coerce arguments.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than `other`,\n * else `false`.\n */\n function baseGt(value, other) {\n return value > other;\n }\n\n /**\n * The base implementation of `_.has` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\n function baseHas(object, key) {\n return object != null && hasOwnProperty.call(object, key);\n }\n\n /**\n * The base implementation of `_.hasIn` without support for deep paths.\n *\n * @private\n * @param {Object} [object] The object to query.\n * @param {Array|string} key The key to check.\n * @returns {boolean} Returns `true` if `key` exists, else `false`.\n */\n function baseHasIn(object, key) {\n return object != null && key in Object(object);\n }\n\n /**\n * The base implementation of `_.inRange` which doesn't coerce arguments.\n *\n * @private\n * @param {number} number The number to check.\n * @param {number} start The start of the range.\n * @param {number} end The end of the range.\n * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n */\n function baseInRange(number, start, end) {\n return number >= nativeMin(start, end) && number < nativeMax(start, end);\n }\n\n /**\n * The base implementation of methods like `_.intersection`, without support\n * for iteratee shorthands, that accepts an array of arrays to inspect.\n *\n * @private\n * @param {Array} arrays The arrays to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of shared values.\n */\n function baseIntersection(arrays, iteratee, comparator) {\n var includes = comparator ? arrayIncludesWith : arrayIncludes,\n length = arrays[0].length,\n othLength = arrays.length,\n othIndex = othLength,\n caches = Array(othLength),\n maxLength = Infinity,\n result = [];\n\n while (othIndex--) {\n var array = arrays[othIndex];\n if (othIndex && iteratee) {\n array = arrayMap(array, baseUnary(iteratee));\n }\n maxLength = nativeMin(array.length, maxLength);\n caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))\n ? new SetCache(othIndex && array)\n : undefined;\n }\n array = arrays[0];\n\n var index = -1,\n seen = caches[0];\n\n outer:\n while (++index < length && result.length < maxLength) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n value = (comparator || value !== 0) ? value : 0;\n if (!(seen\n ? cacheHas(seen, computed)\n : includes(result, computed, comparator)\n )) {\n othIndex = othLength;\n while (--othIndex) {\n var cache = caches[othIndex];\n if (!(cache\n ? cacheHas(cache, computed)\n : includes(arrays[othIndex], computed, comparator))\n ) {\n continue outer;\n }\n }\n if (seen) {\n seen.push(computed);\n }\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.invert` and `_.invertBy` which inverts\n * `object` with values transformed by `iteratee` and set by `setter`.\n *\n * @private\n * @param {Object} object The object to iterate over.\n * @param {Function} setter The function to set `accumulator` values.\n * @param {Function} iteratee The iteratee to transform values.\n * @param {Object} accumulator The initial inverted object.\n * @returns {Function} Returns `accumulator`.\n */\n function baseInverter(object, setter, iteratee, accumulator) {\n baseForOwn(object, function(value, key, object) {\n setter(accumulator, iteratee(value), key, object);\n });\n return accumulator;\n }\n\n /**\n * The base implementation of `_.invoke` without support for individual\n * method arguments.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the method to invoke.\n * @param {Array} args The arguments to invoke the method with.\n * @returns {*} Returns the result of the invoked method.\n */\n function baseInvoke(object, path, args) {\n path = castPath(path, object);\n object = parent(object, path);\n var func = object == null ? object : object[toKey(last(path))];\n return func == null ? undefined : apply(func, object, args);\n }\n\n /**\n * The base implementation of `_.isArguments`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n */\n function baseIsArguments(value) {\n return isObjectLike(value) && baseGetTag(value) == argsTag;\n }\n\n /**\n * The base implementation of `_.isArrayBuffer` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n */\n function baseIsArrayBuffer(value) {\n return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;\n }\n\n /**\n * The base implementation of `_.isDate` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n */\n function baseIsDate(value) {\n return isObjectLike(value) && baseGetTag(value) == dateTag;\n }\n\n /**\n * The base implementation of `_.isEqual` which supports partial comparisons\n * and tracks traversed objects.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {boolean} bitmask The bitmask flags.\n * 1 - Unordered comparison\n * 2 - Partial comparison\n * @param {Function} [customizer] The function to customize comparisons.\n * @param {Object} [stack] Tracks traversed `value` and `other` objects.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n */\n function baseIsEqual(value, other, bitmask, customizer, stack) {\n if (value === other) {\n return true;\n }\n if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {\n return value !== value && other !== other;\n }\n return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);\n }\n\n /**\n * A specialized version of `baseIsEqual` for arrays and objects which performs\n * deep comparisons and tracks traversed objects enabling objects with circular\n * references to be compared.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} [stack] Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {\n var objIsArr = isArray(object),\n othIsArr = isArray(other),\n objTag = objIsArr ? arrayTag : getTag(object),\n othTag = othIsArr ? arrayTag : getTag(other);\n\n objTag = objTag == argsTag ? objectTag : objTag;\n othTag = othTag == argsTag ? objectTag : othTag;\n\n var objIsObj = objTag == objectTag,\n othIsObj = othTag == objectTag,\n isSameTag = objTag == othTag;\n\n if (isSameTag && isBuffer(object)) {\n if (!isBuffer(other)) {\n return false;\n }\n objIsArr = true;\n objIsObj = false;\n }\n if (isSameTag && !objIsObj) {\n stack || (stack = new Stack);\n return (objIsArr || isTypedArray(object))\n ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)\n : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);\n }\n if (!(bitmask & COMPARE_PARTIAL_FLAG)) {\n var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),\n othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');\n\n if (objIsWrapped || othIsWrapped) {\n var objUnwrapped = objIsWrapped ? object.value() : object,\n othUnwrapped = othIsWrapped ? other.value() : other;\n\n stack || (stack = new Stack);\n return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);\n }\n }\n if (!isSameTag) {\n return false;\n }\n stack || (stack = new Stack);\n return equalObjects(object, other, bitmask, customizer, equalFunc, stack);\n }\n\n /**\n * The base implementation of `_.isMap` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n */\n function baseIsMap(value) {\n return isObjectLike(value) && getTag(value) == mapTag;\n }\n\n /**\n * The base implementation of `_.isMatch` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Array} matchData The property names, values, and compare flags to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n */\n function baseIsMatch(object, source, matchData, customizer) {\n var index = matchData.length,\n length = index,\n noCustomizer = !customizer;\n\n if (object == null) {\n return !length;\n }\n object = Object(object);\n while (index--) {\n var data = matchData[index];\n if ((noCustomizer && data[2])\n ? data[1] !== object[data[0]]\n : !(data[0] in object)\n ) {\n return false;\n }\n }\n while (++index < length) {\n data = matchData[index];\n var key = data[0],\n objValue = object[key],\n srcValue = data[1];\n\n if (noCustomizer && data[2]) {\n if (objValue === undefined && !(key in object)) {\n return false;\n }\n } else {\n var stack = new Stack;\n if (customizer) {\n var result = customizer(objValue, srcValue, key, object, source, stack);\n }\n if (!(result === undefined\n ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)\n : result\n )) {\n return false;\n }\n }\n }\n return true;\n }\n\n /**\n * The base implementation of `_.isNative` without bad shim checks.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n */\n function baseIsNative(value) {\n if (!isObject(value) || isMasked(value)) {\n return false;\n }\n var pattern = isFunction(value) ? reIsNative : reIsHostCtor;\n return pattern.test(toSource(value));\n }\n\n /**\n * The base implementation of `_.isRegExp` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n */\n function baseIsRegExp(value) {\n return isObjectLike(value) && baseGetTag(value) == regexpTag;\n }\n\n /**\n * The base implementation of `_.isSet` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n */\n function baseIsSet(value) {\n return isObjectLike(value) && getTag(value) == setTag;\n }\n\n /**\n * The base implementation of `_.isTypedArray` without Node.js optimizations.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n */\n function baseIsTypedArray(value) {\n return isObjectLike(value) &&\n isLength(value.length) && !!typedArrayTags[baseGetTag(value)];\n }\n\n /**\n * The base implementation of `_.iteratee`.\n *\n * @private\n * @param {*} [value=_.identity] The value to convert to an iteratee.\n * @returns {Function} Returns the iteratee.\n */\n function baseIteratee(value) {\n // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.\n // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.\n if (typeof value == 'function') {\n return value;\n }\n if (value == null) {\n return identity;\n }\n if (typeof value == 'object') {\n return isArray(value)\n ? baseMatchesProperty(value[0], value[1])\n : baseMatches(value);\n }\n return property(value);\n }\n\n /**\n * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function baseKeys(object) {\n if (!isPrototype(object)) {\n return nativeKeys(object);\n }\n var result = [];\n for (var key in Object(object)) {\n if (hasOwnProperty.call(object, key) && key != 'constructor') {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function baseKeysIn(object) {\n if (!isObject(object)) {\n return nativeKeysIn(object);\n }\n var isProto = isPrototype(object),\n result = [];\n\n for (var key in object) {\n if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.lt` which doesn't coerce arguments.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than `other`,\n * else `false`.\n */\n function baseLt(value, other) {\n return value < other;\n }\n\n /**\n * The base implementation of `_.map` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} iteratee The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n */\n function baseMap(collection, iteratee) {\n var index = -1,\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value, key, collection) {\n result[++index] = iteratee(value, key, collection);\n });\n return result;\n }\n\n /**\n * The base implementation of `_.matches` which doesn't clone `source`.\n *\n * @private\n * @param {Object} source The object of property values to match.\n * @returns {Function} Returns the new spec function.\n */\n function baseMatches(source) {\n var matchData = getMatchData(source);\n if (matchData.length == 1 && matchData[0][2]) {\n return matchesStrictComparable(matchData[0][0], matchData[0][1]);\n }\n return function(object) {\n return object === source || baseIsMatch(object, source, matchData);\n };\n }\n\n /**\n * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.\n *\n * @private\n * @param {string} path The path of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\n function baseMatchesProperty(path, srcValue) {\n if (isKey(path) && isStrictComparable(srcValue)) {\n return matchesStrictComparable(toKey(path), srcValue);\n }\n return function(object) {\n var objValue = get(object, path);\n return (objValue === undefined && objValue === srcValue)\n ? hasIn(object, path)\n : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);\n };\n }\n\n /**\n * The base implementation of `_.merge` without support for multiple sources.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} [customizer] The function to customize merged values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\n function baseMerge(object, source, srcIndex, customizer, stack) {\n if (object === source) {\n return;\n }\n baseFor(source, function(srcValue, key) {\n stack || (stack = new Stack);\n if (isObject(srcValue)) {\n baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);\n }\n else {\n var newValue = customizer\n ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)\n : undefined;\n\n if (newValue === undefined) {\n newValue = srcValue;\n }\n assignMergeValue(object, key, newValue);\n }\n }, keysIn);\n }\n\n /**\n * A specialized version of `baseMerge` for arrays and objects which performs\n * deep merges and tracks traversed objects enabling objects with circular\n * references to be merged.\n *\n * @private\n * @param {Object} object The destination object.\n * @param {Object} source The source object.\n * @param {string} key The key of the value to merge.\n * @param {number} srcIndex The index of `source`.\n * @param {Function} mergeFunc The function to merge values.\n * @param {Function} [customizer] The function to customize assigned values.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n */\n function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {\n var objValue = safeGet(object, key),\n srcValue = safeGet(source, key),\n stacked = stack.get(srcValue);\n\n if (stacked) {\n assignMergeValue(object, key, stacked);\n return;\n }\n var newValue = customizer\n ? customizer(objValue, srcValue, (key + ''), object, source, stack)\n : undefined;\n\n var isCommon = newValue === undefined;\n\n if (isCommon) {\n var isArr = isArray(srcValue),\n isBuff = !isArr && isBuffer(srcValue),\n isTyped = !isArr && !isBuff && isTypedArray(srcValue);\n\n newValue = srcValue;\n if (isArr || isBuff || isTyped) {\n if (isArray(objValue)) {\n newValue = objValue;\n }\n else if (isArrayLikeObject(objValue)) {\n newValue = copyArray(objValue);\n }\n else if (isBuff) {\n isCommon = false;\n newValue = cloneBuffer(srcValue, true);\n }\n else if (isTyped) {\n isCommon = false;\n newValue = cloneTypedArray(srcValue, true);\n }\n else {\n newValue = [];\n }\n }\n else if (isPlainObject(srcValue) || isArguments(srcValue)) {\n newValue = objValue;\n if (isArguments(objValue)) {\n newValue = toPlainObject(objValue);\n }\n else if (!isObject(objValue) || isFunction(objValue)) {\n newValue = initCloneObject(srcValue);\n }\n }\n else {\n isCommon = false;\n }\n }\n if (isCommon) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n stack.set(srcValue, newValue);\n mergeFunc(newValue, srcValue, srcIndex, customizer, stack);\n stack['delete'](srcValue);\n }\n assignMergeValue(object, key, newValue);\n }\n\n /**\n * The base implementation of `_.nth` which doesn't coerce arguments.\n *\n * @private\n * @param {Array} array The array to query.\n * @param {number} n The index of the element to return.\n * @returns {*} Returns the nth element of `array`.\n */\n function baseNth(array, n) {\n var length = array.length;\n if (!length) {\n return;\n }\n n += n < 0 ? length : 0;\n return isIndex(n, length) ? array[n] : undefined;\n }\n\n /**\n * The base implementation of `_.orderBy` without param guards.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.\n * @param {string[]} orders The sort orders of `iteratees`.\n * @returns {Array} Returns the new sorted array.\n */\n function baseOrderBy(collection, iteratees, orders) {\n if (iteratees.length) {\n iteratees = arrayMap(iteratees, function(iteratee) {\n if (isArray(iteratee)) {\n return function(value) {\n return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee);\n }\n }\n return iteratee;\n });\n } else {\n iteratees = [identity];\n }\n\n var index = -1;\n iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n\n var result = baseMap(collection, function(value, key, collection) {\n var criteria = arrayMap(iteratees, function(iteratee) {\n return iteratee(value);\n });\n return { 'criteria': criteria, 'index': ++index, 'value': value };\n });\n\n return baseSortBy(result, function(object, other) {\n return compareMultiple(object, other, orders);\n });\n }\n\n /**\n * The base implementation of `_.pick` without support for individual\n * property identifiers.\n *\n * @private\n * @param {Object} object The source object.\n * @param {string[]} paths The property paths to pick.\n * @returns {Object} Returns the new object.\n */\n function basePick(object, paths) {\n return basePickBy(object, paths, function(value, path) {\n return hasIn(object, path);\n });\n }\n\n /**\n * The base implementation of `_.pickBy` without support for iteratee shorthands.\n *\n * @private\n * @param {Object} object The source object.\n * @param {string[]} paths The property paths to pick.\n * @param {Function} predicate The function invoked per property.\n * @returns {Object} Returns the new object.\n */\n function basePickBy(object, paths, predicate) {\n var index = -1,\n length = paths.length,\n result = {};\n\n while (++index < length) {\n var path = paths[index],\n value = baseGet(object, path);\n\n if (predicate(value, path)) {\n baseSet(result, castPath(path, object), value);\n }\n }\n return result;\n }\n\n /**\n * A specialized version of `baseProperty` which supports deep paths.\n *\n * @private\n * @param {Array|string} path The path of the property to get.\n * @returns {Function} Returns the new accessor function.\n */\n function basePropertyDeep(path) {\n return function(object) {\n return baseGet(object, path);\n };\n }\n\n /**\n * The base implementation of `_.pullAllBy` without support for iteratee\n * shorthands.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns `array`.\n */\n function basePullAll(array, values, iteratee, comparator) {\n var indexOf = comparator ? baseIndexOfWith : baseIndexOf,\n index = -1,\n length = values.length,\n seen = array;\n\n if (array === values) {\n values = copyArray(values);\n }\n if (iteratee) {\n seen = arrayMap(array, baseUnary(iteratee));\n }\n while (++index < length) {\n var fromIndex = 0,\n value = values[index],\n computed = iteratee ? iteratee(value) : value;\n\n while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {\n if (seen !== array) {\n splice.call(seen, fromIndex, 1);\n }\n splice.call(array, fromIndex, 1);\n }\n }\n return array;\n }\n\n /**\n * The base implementation of `_.pullAt` without support for individual\n * indexes or capturing the removed elements.\n *\n * @private\n * @param {Array} array The array to modify.\n * @param {number[]} indexes The indexes of elements to remove.\n * @returns {Array} Returns `array`.\n */\n function basePullAt(array, indexes) {\n var length = array ? indexes.length : 0,\n lastIndex = length - 1;\n\n while (length--) {\n var index = indexes[length];\n if (length == lastIndex || index !== previous) {\n var previous = index;\n if (isIndex(index)) {\n splice.call(array, index, 1);\n } else {\n baseUnset(array, index);\n }\n }\n }\n return array;\n }\n\n /**\n * The base implementation of `_.random` without support for returning\n * floating-point numbers.\n *\n * @private\n * @param {number} lower The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the random number.\n */\n function baseRandom(lower, upper) {\n return lower + nativeFloor(nativeRandom() * (upper - lower + 1));\n }\n\n /**\n * The base implementation of `_.range` and `_.rangeRight` which doesn't\n * coerce arguments.\n *\n * @private\n * @param {number} start The start of the range.\n * @param {number} end The end of the range.\n * @param {number} step The value to increment or decrement by.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Array} Returns the range of numbers.\n */\n function baseRange(start, end, step, fromRight) {\n var index = -1,\n length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),\n result = Array(length);\n\n while (length--) {\n result[fromRight ? length : ++index] = start;\n start += step;\n }\n return result;\n }\n\n /**\n * The base implementation of `_.repeat` which doesn't coerce arguments.\n *\n * @private\n * @param {string} string The string to repeat.\n * @param {number} n The number of times to repeat the string.\n * @returns {string} Returns the repeated string.\n */\n function baseRepeat(string, n) {\n var result = '';\n if (!string || n < 1 || n > MAX_SAFE_INTEGER) {\n return result;\n }\n // Leverage the exponentiation by squaring algorithm for a faster repeat.\n // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.\n do {\n if (n % 2) {\n result += string;\n }\n n = nativeFloor(n / 2);\n if (n) {\n string += string;\n }\n } while (n);\n\n return result;\n }\n\n /**\n * The base implementation of `_.rest` which doesn't validate or coerce arguments.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n */\n function baseRest(func, start) {\n return setToString(overRest(func, start, identity), func + '');\n }\n\n /**\n * The base implementation of `_.sample`.\n *\n * @private\n * @param {Array|Object} collection The collection to sample.\n * @returns {*} Returns the random element.\n */\n function baseSample(collection) {\n return arraySample(values(collection));\n }\n\n /**\n * The base implementation of `_.sampleSize` without param guards.\n *\n * @private\n * @param {Array|Object} collection The collection to sample.\n * @param {number} n The number of elements to sample.\n * @returns {Array} Returns the random elements.\n */\n function baseSampleSize(collection, n) {\n var array = values(collection);\n return shuffleSelf(array, baseClamp(n, 0, array.length));\n }\n\n /**\n * The base implementation of `_.set`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize path creation.\n * @returns {Object} Returns `object`.\n */\n function baseSet(object, path, value, customizer) {\n if (!isObject(object)) {\n return object;\n }\n path = castPath(path, object);\n\n var index = -1,\n length = path.length,\n lastIndex = length - 1,\n nested = object;\n\n while (nested != null && ++index < length) {\n var key = toKey(path[index]),\n newValue = value;\n\n if (key === '__proto__' || key === 'constructor' || key === 'prototype') {\n return object;\n }\n\n if (index != lastIndex) {\n var objValue = nested[key];\n newValue = customizer ? customizer(objValue, key, nested) : undefined;\n if (newValue === undefined) {\n newValue = isObject(objValue)\n ? objValue\n : (isIndex(path[index + 1]) ? [] : {});\n }\n }\n assignValue(nested, key, newValue);\n nested = nested[key];\n }\n return object;\n }\n\n /**\n * The base implementation of `setData` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to associate metadata with.\n * @param {*} data The metadata.\n * @returns {Function} Returns `func`.\n */\n var baseSetData = !metaMap ? identity : function(func, data) {\n metaMap.set(func, data);\n return func;\n };\n\n /**\n * The base implementation of `setToString` without support for hot loop shorting.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\n var baseSetToString = !defineProperty ? identity : function(func, string) {\n return defineProperty(func, 'toString', {\n 'configurable': true,\n 'enumerable': false,\n 'value': constant(string),\n 'writable': true\n });\n };\n\n /**\n * The base implementation of `_.shuffle`.\n *\n * @private\n * @param {Array|Object} collection The collection to shuffle.\n * @returns {Array} Returns the new shuffled array.\n */\n function baseShuffle(collection) {\n return shuffleSelf(values(collection));\n }\n\n /**\n * The base implementation of `_.slice` without an iteratee call guard.\n *\n * @private\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\n function baseSlice(array, start, end) {\n var index = -1,\n length = array.length;\n\n if (start < 0) {\n start = -start > length ? 0 : (length + start);\n }\n end = end > length ? length : end;\n if (end < 0) {\n end += length;\n }\n length = start > end ? 0 : ((end - start) >>> 0);\n start >>>= 0;\n\n var result = Array(length);\n while (++index < length) {\n result[index] = array[index + start];\n }\n return result;\n }\n\n /**\n * The base implementation of `_.some` without support for iteratee shorthands.\n *\n * @private\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} predicate The function invoked per iteration.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n */\n function baseSome(collection, predicate) {\n var result;\n\n baseEach(collection, function(value, index, collection) {\n result = predicate(value, index, collection);\n return !result;\n });\n return !!result;\n }\n\n /**\n * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which\n * performs a binary search of `array` to determine the index at which `value`\n * should be inserted into `array` in order to maintain its sort order.\n *\n * @private\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {boolean} [retHighest] Specify returning the highest qualified index.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n */\n function baseSortedIndex(array, value, retHighest) {\n var low = 0,\n high = array == null ? low : array.length;\n\n if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {\n while (low < high) {\n var mid = (low + high) >>> 1,\n computed = array[mid];\n\n if (computed !== null && !isSymbol(computed) &&\n (retHighest ? (computed <= value) : (computed < value))) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return high;\n }\n return baseSortedIndexBy(array, value, identity, retHighest);\n }\n\n /**\n * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`\n * which invokes `iteratee` for `value` and each element of `array` to compute\n * their sort ranking. The iteratee is invoked with one argument; (value).\n *\n * @private\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} iteratee The iteratee invoked per element.\n * @param {boolean} [retHighest] Specify returning the highest qualified index.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n */\n function baseSortedIndexBy(array, value, iteratee, retHighest) {\n var low = 0,\n high = array == null ? 0 : array.length;\n if (high === 0) {\n return 0;\n }\n\n value = iteratee(value);\n var valIsNaN = value !== value,\n valIsNull = value === null,\n valIsSymbol = isSymbol(value),\n valIsUndefined = value === undefined;\n\n while (low < high) {\n var mid = nativeFloor((low + high) / 2),\n computed = iteratee(array[mid]),\n othIsDefined = computed !== undefined,\n othIsNull = computed === null,\n othIsReflexive = computed === computed,\n othIsSymbol = isSymbol(computed);\n\n if (valIsNaN) {\n var setLow = retHighest || othIsReflexive;\n } else if (valIsUndefined) {\n setLow = othIsReflexive && (retHighest || othIsDefined);\n } else if (valIsNull) {\n setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);\n } else if (valIsSymbol) {\n setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);\n } else if (othIsNull || othIsSymbol) {\n setLow = false;\n } else {\n setLow = retHighest ? (computed <= value) : (computed < value);\n }\n if (setLow) {\n low = mid + 1;\n } else {\n high = mid;\n }\n }\n return nativeMin(high, MAX_ARRAY_INDEX);\n }\n\n /**\n * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without\n * support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n */\n function baseSortedUniq(array, iteratee) {\n var index = -1,\n length = array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n if (!index || !eq(computed, seen)) {\n var seen = computed;\n result[resIndex++] = value === 0 ? 0 : value;\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.toNumber` which doesn't ensure correct\n * conversions of binary, hexadecimal, or octal string values.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n */\n function baseToNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n return +value;\n }\n\n /**\n * The base implementation of `_.toString` which doesn't convert nullish\n * values to empty strings.\n *\n * @private\n * @param {*} value The value to process.\n * @returns {string} Returns the string.\n */\n function baseToString(value) {\n // Exit early for strings to avoid a performance hit in some environments.\n if (typeof value == 'string') {\n return value;\n }\n if (isArray(value)) {\n // Recursively convert values (susceptible to call stack limits).\n return arrayMap(value, baseToString) + '';\n }\n if (isSymbol(value)) {\n return symbolToString ? symbolToString.call(value) : '';\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n }\n\n /**\n * The base implementation of `_.uniqBy` without support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n */\n function baseUniq(array, iteratee, comparator) {\n var index = -1,\n includes = arrayIncludes,\n length = array.length,\n isCommon = true,\n result = [],\n seen = result;\n\n if (comparator) {\n isCommon = false;\n includes = arrayIncludesWith;\n }\n else if (length >= LARGE_ARRAY_SIZE) {\n var set = iteratee ? null : createSet(array);\n if (set) {\n return setToArray(set);\n }\n isCommon = false;\n includes = cacheHas;\n seen = new SetCache;\n }\n else {\n seen = iteratee ? [] : result;\n }\n outer:\n while (++index < length) {\n var value = array[index],\n computed = iteratee ? iteratee(value) : value;\n\n value = (comparator || value !== 0) ? value : 0;\n if (isCommon && computed === computed) {\n var seenIndex = seen.length;\n while (seenIndex--) {\n if (seen[seenIndex] === computed) {\n continue outer;\n }\n }\n if (iteratee) {\n seen.push(computed);\n }\n result.push(value);\n }\n else if (!includes(seen, computed, comparator)) {\n if (seen !== result) {\n seen.push(computed);\n }\n result.push(value);\n }\n }\n return result;\n }\n\n /**\n * The base implementation of `_.unset`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The property path to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n */\n function baseUnset(object, path) {\n path = castPath(path, object);\n object = parent(object, path);\n return object == null || delete object[toKey(last(path))];\n }\n\n /**\n * The base implementation of `_.update`.\n *\n * @private\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to update.\n * @param {Function} updater The function to produce the updated value.\n * @param {Function} [customizer] The function to customize path creation.\n * @returns {Object} Returns `object`.\n */\n function baseUpdate(object, path, updater, customizer) {\n return baseSet(object, path, updater(baseGet(object, path)), customizer);\n }\n\n /**\n * The base implementation of methods like `_.dropWhile` and `_.takeWhile`\n * without support for iteratee shorthands.\n *\n * @private\n * @param {Array} array The array to query.\n * @param {Function} predicate The function invoked per iteration.\n * @param {boolean} [isDrop] Specify dropping elements instead of taking them.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Array} Returns the slice of `array`.\n */\n function baseWhile(array, predicate, isDrop, fromRight) {\n var length = array.length,\n index = fromRight ? length : -1;\n\n while ((fromRight ? index-- : ++index < length) &&\n predicate(array[index], index, array)) {}\n\n return isDrop\n ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))\n : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));\n }\n\n /**\n * The base implementation of `wrapperValue` which returns the result of\n * performing a sequence of actions on the unwrapped `value`, where each\n * successive action is supplied the return value of the previous.\n *\n * @private\n * @param {*} value The unwrapped value.\n * @param {Array} actions Actions to perform to resolve the unwrapped value.\n * @returns {*} Returns the resolved value.\n */\n function baseWrapperValue(value, actions) {\n var result = value;\n if (result instanceof LazyWrapper) {\n result = result.value();\n }\n return arrayReduce(actions, function(result, action) {\n return action.func.apply(action.thisArg, arrayPush([result], action.args));\n }, result);\n }\n\n /**\n * The base implementation of methods like `_.xor`, without support for\n * iteratee shorthands, that accepts an array of arrays to inspect.\n *\n * @private\n * @param {Array} arrays The arrays to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of values.\n */\n function baseXor(arrays, iteratee, comparator) {\n var length = arrays.length;\n if (length < 2) {\n return length ? baseUniq(arrays[0]) : [];\n }\n var index = -1,\n result = Array(length);\n\n while (++index < length) {\n var array = arrays[index],\n othIndex = -1;\n\n while (++othIndex < length) {\n if (othIndex != index) {\n result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);\n }\n }\n }\n return baseUniq(baseFlatten(result, 1), iteratee, comparator);\n }\n\n /**\n * This base implementation of `_.zipObject` which assigns values using `assignFunc`.\n *\n * @private\n * @param {Array} props The property identifiers.\n * @param {Array} values The property values.\n * @param {Function} assignFunc The function to assign values.\n * @returns {Object} Returns the new object.\n */\n function baseZipObject(props, values, assignFunc) {\n var index = -1,\n length = props.length,\n valsLength = values.length,\n result = {};\n\n while (++index < length) {\n var value = index < valsLength ? values[index] : undefined;\n assignFunc(result, props[index], value);\n }\n return result;\n }\n\n /**\n * Casts `value` to an empty array if it's not an array like object.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {Array|Object} Returns the cast array-like object.\n */\n function castArrayLikeObject(value) {\n return isArrayLikeObject(value) ? value : [];\n }\n\n /**\n * Casts `value` to `identity` if it's not a function.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {Function} Returns cast function.\n */\n function castFunction(value) {\n return typeof value == 'function' ? value : identity;\n }\n\n /**\n * Casts `value` to a path array if it's not one.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {Object} [object] The object to query keys on.\n * @returns {Array} Returns the cast property path array.\n */\n function castPath(value, object) {\n if (isArray(value)) {\n return value;\n }\n return isKey(value, object) ? [value] : stringToPath(toString(value));\n }\n\n /**\n * A `baseRest` alias which can be replaced with `identity` by module\n * replacement plugins.\n *\n * @private\n * @type {Function}\n * @param {Function} func The function to apply a rest parameter to.\n * @returns {Function} Returns the new function.\n */\n var castRest = baseRest;\n\n /**\n * Casts `array` to a slice if it's needed.\n *\n * @private\n * @param {Array} array The array to inspect.\n * @param {number} start The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the cast slice.\n */\n function castSlice(array, start, end) {\n var length = array.length;\n end = end === undefined ? length : end;\n return (!start && end >= length) ? array : baseSlice(array, start, end);\n }\n\n /**\n * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).\n *\n * @private\n * @param {number|Object} id The timer id or timeout object of the timer to clear.\n */\n var clearTimeout = ctxClearTimeout || function(id) {\n return root.clearTimeout(id);\n };\n\n /**\n * Creates a clone of `buffer`.\n *\n * @private\n * @param {Buffer} buffer The buffer to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Buffer} Returns the cloned buffer.\n */\n function cloneBuffer(buffer, isDeep) {\n if (isDeep) {\n return buffer.slice();\n }\n var length = buffer.length,\n result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);\n\n buffer.copy(result);\n return result;\n }\n\n /**\n * Creates a clone of `arrayBuffer`.\n *\n * @private\n * @param {ArrayBuffer} arrayBuffer The array buffer to clone.\n * @returns {ArrayBuffer} Returns the cloned array buffer.\n */\n function cloneArrayBuffer(arrayBuffer) {\n var result = new arrayBuffer.constructor(arrayBuffer.byteLength);\n new Uint8Array(result).set(new Uint8Array(arrayBuffer));\n return result;\n }\n\n /**\n * Creates a clone of `dataView`.\n *\n * @private\n * @param {Object} dataView The data view to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned data view.\n */\n function cloneDataView(dataView, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;\n return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);\n }\n\n /**\n * Creates a clone of `regexp`.\n *\n * @private\n * @param {Object} regexp The regexp to clone.\n * @returns {Object} Returns the cloned regexp.\n */\n function cloneRegExp(regexp) {\n var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));\n result.lastIndex = regexp.lastIndex;\n return result;\n }\n\n /**\n * Creates a clone of the `symbol` object.\n *\n * @private\n * @param {Object} symbol The symbol object to clone.\n * @returns {Object} Returns the cloned symbol object.\n */\n function cloneSymbol(symbol) {\n return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};\n }\n\n /**\n * Creates a clone of `typedArray`.\n *\n * @private\n * @param {Object} typedArray The typed array to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the cloned typed array.\n */\n function cloneTypedArray(typedArray, isDeep) {\n var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;\n return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);\n }\n\n /**\n * Compares values to sort them in ascending order.\n *\n * @private\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {number} Returns the sort order indicator for `value`.\n */\n function compareAscending(value, other) {\n if (value !== other) {\n var valIsDefined = value !== undefined,\n valIsNull = value === null,\n valIsReflexive = value === value,\n valIsSymbol = isSymbol(value);\n\n var othIsDefined = other !== undefined,\n othIsNull = other === null,\n othIsReflexive = other === other,\n othIsSymbol = isSymbol(other);\n\n if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||\n (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||\n (valIsNull && othIsDefined && othIsReflexive) ||\n (!valIsDefined && othIsReflexive) ||\n !valIsReflexive) {\n return 1;\n }\n if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||\n (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||\n (othIsNull && valIsDefined && valIsReflexive) ||\n (!othIsDefined && valIsReflexive) ||\n !othIsReflexive) {\n return -1;\n }\n }\n return 0;\n }\n\n /**\n * Used by `_.orderBy` to compare multiple properties of a value to another\n * and stable sort them.\n *\n * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,\n * specify an order of \"desc\" for descending or \"asc\" for ascending sort order\n * of corresponding values.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {boolean[]|string[]} orders The order to sort by for each property.\n * @returns {number} Returns the sort order indicator for `object`.\n */\n function compareMultiple(object, other, orders) {\n var index = -1,\n objCriteria = object.criteria,\n othCriteria = other.criteria,\n length = objCriteria.length,\n ordersLength = orders.length;\n\n while (++index < length) {\n var result = compareAscending(objCriteria[index], othCriteria[index]);\n if (result) {\n if (index >= ordersLength) {\n return result;\n }\n var order = orders[index];\n return result * (order == 'desc' ? -1 : 1);\n }\n }\n // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications\n // that causes it, under certain circumstances, to provide the same value for\n // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247\n // for more details.\n //\n // This also ensures a stable sort in V8 and other engines.\n // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.\n return object.index - other.index;\n }\n\n /**\n * Creates an array that is the composition of partially applied arguments,\n * placeholders, and provided arguments into a single array of arguments.\n *\n * @private\n * @param {Array} args The provided arguments.\n * @param {Array} partials The arguments to prepend to those provided.\n * @param {Array} holders The `partials` placeholder indexes.\n * @params {boolean} [isCurried] Specify composing for a curried function.\n * @returns {Array} Returns the new array of composed arguments.\n */\n function composeArgs(args, partials, holders, isCurried) {\n var argsIndex = -1,\n argsLength = args.length,\n holdersLength = holders.length,\n leftIndex = -1,\n leftLength = partials.length,\n rangeLength = nativeMax(argsLength - holdersLength, 0),\n result = Array(leftLength + rangeLength),\n isUncurried = !isCurried;\n\n while (++leftIndex < leftLength) {\n result[leftIndex] = partials[leftIndex];\n }\n while (++argsIndex < holdersLength) {\n if (isUncurried || argsIndex < argsLength) {\n result[holders[argsIndex]] = args[argsIndex];\n }\n }\n while (rangeLength--) {\n result[leftIndex++] = args[argsIndex++];\n }\n return result;\n }\n\n /**\n * This function is like `composeArgs` except that the arguments composition\n * is tailored for `_.partialRight`.\n *\n * @private\n * @param {Array} args The provided arguments.\n * @param {Array} partials The arguments to append to those provided.\n * @param {Array} holders The `partials` placeholder indexes.\n * @params {boolean} [isCurried] Specify composing for a curried function.\n * @returns {Array} Returns the new array of composed arguments.\n */\n function composeArgsRight(args, partials, holders, isCurried) {\n var argsIndex = -1,\n argsLength = args.length,\n holdersIndex = -1,\n holdersLength = holders.length,\n rightIndex = -1,\n rightLength = partials.length,\n rangeLength = nativeMax(argsLength - holdersLength, 0),\n result = Array(rangeLength + rightLength),\n isUncurried = !isCurried;\n\n while (++argsIndex < rangeLength) {\n result[argsIndex] = args[argsIndex];\n }\n var offset = argsIndex;\n while (++rightIndex < rightLength) {\n result[offset + rightIndex] = partials[rightIndex];\n }\n while (++holdersIndex < holdersLength) {\n if (isUncurried || argsIndex < argsLength) {\n result[offset + holders[holdersIndex]] = args[argsIndex++];\n }\n }\n return result;\n }\n\n /**\n * Copies the values of `source` to `array`.\n *\n * @private\n * @param {Array} source The array to copy values from.\n * @param {Array} [array=[]] The array to copy values to.\n * @returns {Array} Returns `array`.\n */\n function copyArray(source, array) {\n var index = -1,\n length = source.length;\n\n array || (array = Array(length));\n while (++index < length) {\n array[index] = source[index];\n }\n return array;\n }\n\n /**\n * Copies properties of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy properties from.\n * @param {Array} props The property identifiers to copy.\n * @param {Object} [object={}] The object to copy properties to.\n * @param {Function} [customizer] The function to customize copied values.\n * @returns {Object} Returns `object`.\n */\n function copyObject(source, props, object, customizer) {\n var isNew = !object;\n object || (object = {});\n\n var index = -1,\n length = props.length;\n\n while (++index < length) {\n var key = props[index];\n\n var newValue = customizer\n ? customizer(object[key], source[key], key, object, source)\n : undefined;\n\n if (newValue === undefined) {\n newValue = source[key];\n }\n if (isNew) {\n baseAssignValue(object, key, newValue);\n } else {\n assignValue(object, key, newValue);\n }\n }\n return object;\n }\n\n /**\n * Copies own symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\n function copySymbols(source, object) {\n return copyObject(source, getSymbols(source), object);\n }\n\n /**\n * Copies own and inherited symbols of `source` to `object`.\n *\n * @private\n * @param {Object} source The object to copy symbols from.\n * @param {Object} [object={}] The object to copy symbols to.\n * @returns {Object} Returns `object`.\n */\n function copySymbolsIn(source, object) {\n return copyObject(source, getSymbolsIn(source), object);\n }\n\n /**\n * Creates a function like `_.groupBy`.\n *\n * @private\n * @param {Function} setter The function to set accumulator values.\n * @param {Function} [initializer] The accumulator object initializer.\n * @returns {Function} Returns the new aggregator function.\n */\n function createAggregator(setter, initializer) {\n return function(collection, iteratee) {\n var func = isArray(collection) ? arrayAggregator : baseAggregator,\n accumulator = initializer ? initializer() : {};\n\n return func(collection, setter, getIteratee(iteratee, 2), accumulator);\n };\n }\n\n /**\n * Creates a function like `_.assign`.\n *\n * @private\n * @param {Function} assigner The function to assign values.\n * @returns {Function} Returns the new assigner function.\n */\n function createAssigner(assigner) {\n return baseRest(function(object, sources) {\n var index = -1,\n length = sources.length,\n customizer = length > 1 ? sources[length - 1] : undefined,\n guard = length > 2 ? sources[2] : undefined;\n\n customizer = (assigner.length > 3 && typeof customizer == 'function')\n ? (length--, customizer)\n : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n customizer = length < 3 ? undefined : customizer;\n length = 1;\n }\n object = Object(object);\n while (++index < length) {\n var source = sources[index];\n if (source) {\n assigner(object, source, index, customizer);\n }\n }\n return object;\n });\n }\n\n /**\n * Creates a `baseEach` or `baseEachRight` function.\n *\n * @private\n * @param {Function} eachFunc The function to iterate over a collection.\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\n function createBaseEach(eachFunc, fromRight) {\n return function(collection, iteratee) {\n if (collection == null) {\n return collection;\n }\n if (!isArrayLike(collection)) {\n return eachFunc(collection, iteratee);\n }\n var length = collection.length,\n index = fromRight ? length : -1,\n iterable = Object(collection);\n\n while ((fromRight ? index-- : ++index < length)) {\n if (iteratee(iterable[index], index, iterable) === false) {\n break;\n }\n }\n return collection;\n };\n }\n\n /**\n * Creates a base function for methods like `_.forIn` and `_.forOwn`.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new base function.\n */\n function createBaseFor(fromRight) {\n return function(object, iteratee, keysFunc) {\n var index = -1,\n iterable = Object(object),\n props = keysFunc(object),\n length = props.length;\n\n while (length--) {\n var key = props[fromRight ? length : ++index];\n if (iteratee(iterable[key], key, iterable) === false) {\n break;\n }\n }\n return object;\n };\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with the optional `this`\n * binding of `thisArg`.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createBind(func, bitmask, thisArg) {\n var isBind = bitmask & WRAP_BIND_FLAG,\n Ctor = createCtor(func);\n\n function wrapper() {\n var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n return fn.apply(isBind ? thisArg : this, arguments);\n }\n return wrapper;\n }\n\n /**\n * Creates a function like `_.lowerFirst`.\n *\n * @private\n * @param {string} methodName The name of the `String` case method to use.\n * @returns {Function} Returns the new case function.\n */\n function createCaseFirst(methodName) {\n return function(string) {\n string = toString(string);\n\n var strSymbols = hasUnicode(string)\n ? stringToArray(string)\n : undefined;\n\n var chr = strSymbols\n ? strSymbols[0]\n : string.charAt(0);\n\n var trailing = strSymbols\n ? castSlice(strSymbols, 1).join('')\n : string.slice(1);\n\n return chr[methodName]() + trailing;\n };\n }\n\n /**\n * Creates a function like `_.camelCase`.\n *\n * @private\n * @param {Function} callback The function to combine each word.\n * @returns {Function} Returns the new compounder function.\n */\n function createCompounder(callback) {\n return function(string) {\n return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');\n };\n }\n\n /**\n * Creates a function that produces an instance of `Ctor` regardless of\n * whether it was invoked as part of a `new` expression or by `call` or `apply`.\n *\n * @private\n * @param {Function} Ctor The constructor to wrap.\n * @returns {Function} Returns the new wrapped function.\n */\n function createCtor(Ctor) {\n return function() {\n // Use a `switch` statement to work with class constructors. See\n // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist\n // for more details.\n var args = arguments;\n switch (args.length) {\n case 0: return new Ctor;\n case 1: return new Ctor(args[0]);\n case 2: return new Ctor(args[0], args[1]);\n case 3: return new Ctor(args[0], args[1], args[2]);\n case 4: return new Ctor(args[0], args[1], args[2], args[3]);\n case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);\n case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);\n case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);\n }\n var thisBinding = baseCreate(Ctor.prototype),\n result = Ctor.apply(thisBinding, args);\n\n // Mimic the constructor's `return` behavior.\n // See https://es5.github.io/#x13.2.2 for more details.\n return isObject(result) ? result : thisBinding;\n };\n }\n\n /**\n * Creates a function that wraps `func` to enable currying.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {number} arity The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createCurry(func, bitmask, arity) {\n var Ctor = createCtor(func);\n\n function wrapper() {\n var length = arguments.length,\n args = Array(length),\n index = length,\n placeholder = getHolder(wrapper);\n\n while (index--) {\n args[index] = arguments[index];\n }\n var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)\n ? []\n : replaceHolders(args, placeholder);\n\n length -= holders.length;\n if (length < arity) {\n return createRecurry(\n func, bitmask, createHybrid, wrapper.placeholder, undefined,\n args, holders, undefined, undefined, arity - length);\n }\n var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n return apply(fn, this, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a `_.find` or `_.findLast` function.\n *\n * @private\n * @param {Function} findIndexFunc The function to find the collection index.\n * @returns {Function} Returns the new find function.\n */\n function createFind(findIndexFunc) {\n return function(collection, predicate, fromIndex) {\n var iterable = Object(collection);\n if (!isArrayLike(collection)) {\n var iteratee = getIteratee(predicate, 3);\n collection = keys(collection);\n predicate = function(key) { return iteratee(iterable[key], key, iterable); };\n }\n var index = findIndexFunc(collection, predicate, fromIndex);\n return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;\n };\n }\n\n /**\n * Creates a `_.flow` or `_.flowRight` function.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new flow function.\n */\n function createFlow(fromRight) {\n return flatRest(function(funcs) {\n var length = funcs.length,\n index = length,\n prereq = LodashWrapper.prototype.thru;\n\n if (fromRight) {\n funcs.reverse();\n }\n while (index--) {\n var func = funcs[index];\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n if (prereq && !wrapper && getFuncName(func) == 'wrapper') {\n var wrapper = new LodashWrapper([], true);\n }\n }\n index = wrapper ? index : length;\n while (++index < length) {\n func = funcs[index];\n\n var funcName = getFuncName(func),\n data = funcName == 'wrapper' ? getData(func) : undefined;\n\n if (data && isLaziable(data[0]) &&\n data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&\n !data[4].length && data[9] == 1\n ) {\n wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);\n } else {\n wrapper = (func.length == 1 && isLaziable(func))\n ? wrapper[funcName]()\n : wrapper.thru(func);\n }\n }\n return function() {\n var args = arguments,\n value = args[0];\n\n if (wrapper && args.length == 1 && isArray(value)) {\n return wrapper.plant(value).value();\n }\n var index = 0,\n result = length ? funcs[index].apply(this, args) : value;\n\n while (++index < length) {\n result = funcs[index].call(this, result);\n }\n return result;\n };\n });\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with optional `this`\n * binding of `thisArg`, partial application, and currying.\n *\n * @private\n * @param {Function|string} func The function or method name to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to prepend to those provided to\n * the new function.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [partialsRight] The arguments to append to those provided\n * to the new function.\n * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {\n var isAry = bitmask & WRAP_ARY_FLAG,\n isBind = bitmask & WRAP_BIND_FLAG,\n isBindKey = bitmask & WRAP_BIND_KEY_FLAG,\n isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),\n isFlip = bitmask & WRAP_FLIP_FLAG,\n Ctor = isBindKey ? undefined : createCtor(func);\n\n function wrapper() {\n var length = arguments.length,\n args = Array(length),\n index = length;\n\n while (index--) {\n args[index] = arguments[index];\n }\n if (isCurried) {\n var placeholder = getHolder(wrapper),\n holdersCount = countHolders(args, placeholder);\n }\n if (partials) {\n args = composeArgs(args, partials, holders, isCurried);\n }\n if (partialsRight) {\n args = composeArgsRight(args, partialsRight, holdersRight, isCurried);\n }\n length -= holdersCount;\n if (isCurried && length < arity) {\n var newHolders = replaceHolders(args, placeholder);\n return createRecurry(\n func, bitmask, createHybrid, wrapper.placeholder, thisArg,\n args, newHolders, argPos, ary, arity - length\n );\n }\n var thisBinding = isBind ? thisArg : this,\n fn = isBindKey ? thisBinding[func] : func;\n\n length = args.length;\n if (argPos) {\n args = reorder(args, argPos);\n } else if (isFlip && length > 1) {\n args.reverse();\n }\n if (isAry && ary < length) {\n args.length = ary;\n }\n if (this && this !== root && this instanceof wrapper) {\n fn = Ctor || createCtor(fn);\n }\n return fn.apply(thisBinding, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a function like `_.invertBy`.\n *\n * @private\n * @param {Function} setter The function to set accumulator values.\n * @param {Function} toIteratee The function to resolve iteratees.\n * @returns {Function} Returns the new inverter function.\n */\n function createInverter(setter, toIteratee) {\n return function(object, iteratee) {\n return baseInverter(object, setter, toIteratee(iteratee), {});\n };\n }\n\n /**\n * Creates a function that performs a mathematical operation on two values.\n *\n * @private\n * @param {Function} operator The function to perform the operation.\n * @param {number} [defaultValue] The value used for `undefined` arguments.\n * @returns {Function} Returns the new mathematical operation function.\n */\n function createMathOperation(operator, defaultValue) {\n return function(value, other) {\n var result;\n if (value === undefined && other === undefined) {\n return defaultValue;\n }\n if (value !== undefined) {\n result = value;\n }\n if (other !== undefined) {\n if (result === undefined) {\n return other;\n }\n if (typeof value == 'string' || typeof other == 'string') {\n value = baseToString(value);\n other = baseToString(other);\n } else {\n value = baseToNumber(value);\n other = baseToNumber(other);\n }\n result = operator(value, other);\n }\n return result;\n };\n }\n\n /**\n * Creates a function like `_.over`.\n *\n * @private\n * @param {Function} arrayFunc The function to iterate over iteratees.\n * @returns {Function} Returns the new over function.\n */\n function createOver(arrayFunc) {\n return flatRest(function(iteratees) {\n iteratees = arrayMap(iteratees, baseUnary(getIteratee()));\n return baseRest(function(args) {\n var thisArg = this;\n return arrayFunc(iteratees, function(iteratee) {\n return apply(iteratee, thisArg, args);\n });\n });\n });\n }\n\n /**\n * Creates the padding for `string` based on `length`. The `chars` string\n * is truncated if the number of characters exceeds `length`.\n *\n * @private\n * @param {number} length The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padding for `string`.\n */\n function createPadding(length, chars) {\n chars = chars === undefined ? ' ' : baseToString(chars);\n\n var charsLength = chars.length;\n if (charsLength < 2) {\n return charsLength ? baseRepeat(chars, length) : chars;\n }\n var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));\n return hasUnicode(chars)\n ? castSlice(stringToArray(result), 0, length).join('')\n : result.slice(0, length);\n }\n\n /**\n * Creates a function that wraps `func` to invoke it with the `this` binding\n * of `thisArg` and `partials` prepended to the arguments it receives.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {Array} partials The arguments to prepend to those provided to\n * the new function.\n * @returns {Function} Returns the new wrapped function.\n */\n function createPartial(func, bitmask, thisArg, partials) {\n var isBind = bitmask & WRAP_BIND_FLAG,\n Ctor = createCtor(func);\n\n function wrapper() {\n var argsIndex = -1,\n argsLength = arguments.length,\n leftIndex = -1,\n leftLength = partials.length,\n args = Array(leftLength + argsLength),\n fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;\n\n while (++leftIndex < leftLength) {\n args[leftIndex] = partials[leftIndex];\n }\n while (argsLength--) {\n args[leftIndex++] = arguments[++argsIndex];\n }\n return apply(fn, isBind ? thisArg : this, args);\n }\n return wrapper;\n }\n\n /**\n * Creates a `_.range` or `_.rangeRight` function.\n *\n * @private\n * @param {boolean} [fromRight] Specify iterating from right to left.\n * @returns {Function} Returns the new range function.\n */\n function createRange(fromRight) {\n return function(start, end, step) {\n if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {\n end = step = undefined;\n }\n // Ensure the sign of `-0` is preserved.\n start = toFinite(start);\n if (end === undefined) {\n end = start;\n start = 0;\n } else {\n end = toFinite(end);\n }\n step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);\n return baseRange(start, end, step, fromRight);\n };\n }\n\n /**\n * Creates a function that performs a relational operation on two values.\n *\n * @private\n * @param {Function} operator The function to perform the operation.\n * @returns {Function} Returns the new relational operation function.\n */\n function createRelationalOperation(operator) {\n return function(value, other) {\n if (!(typeof value == 'string' && typeof other == 'string')) {\n value = toNumber(value);\n other = toNumber(other);\n }\n return operator(value, other);\n };\n }\n\n /**\n * Creates a function that wraps `func` to continue currying.\n *\n * @private\n * @param {Function} func The function to wrap.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @param {Function} wrapFunc The function to create the `func` wrapper.\n * @param {*} placeholder The placeholder value.\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to prepend to those provided to\n * the new function.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {\n var isCurry = bitmask & WRAP_CURRY_FLAG,\n newHolders = isCurry ? holders : undefined,\n newHoldersRight = isCurry ? undefined : holders,\n newPartials = isCurry ? partials : undefined,\n newPartialsRight = isCurry ? undefined : partials;\n\n bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);\n bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);\n\n if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {\n bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);\n }\n var newData = [\n func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,\n newHoldersRight, argPos, ary, arity\n ];\n\n var result = wrapFunc.apply(undefined, newData);\n if (isLaziable(func)) {\n setData(result, newData);\n }\n result.placeholder = placeholder;\n return setWrapToString(result, func, bitmask);\n }\n\n /**\n * Creates a function like `_.round`.\n *\n * @private\n * @param {string} methodName The name of the `Math` method to use when rounding.\n * @returns {Function} Returns the new round function.\n */\n function createRound(methodName) {\n var func = Math[methodName];\n return function(number, precision) {\n number = toNumber(number);\n precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);\n if (precision && nativeIsFinite(number)) {\n // Shift with exponential notation to avoid floating-point issues.\n // See [MDN](https://mdn.io/round#Examples) for more details.\n var pair = (toString(number) + 'e').split('e'),\n value = func(pair[0] + 'e' + (+pair[1] + precision));\n\n pair = (toString(value) + 'e').split('e');\n return +(pair[0] + 'e' + (+pair[1] - precision));\n }\n return func(number);\n };\n }\n\n /**\n * Creates a set object of `values`.\n *\n * @private\n * @param {Array} values The values to add to the set.\n * @returns {Object} Returns the new set.\n */\n var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {\n return new Set(values);\n };\n\n /**\n * Creates a `_.toPairs` or `_.toPairsIn` function.\n *\n * @private\n * @param {Function} keysFunc The function to get the keys of a given object.\n * @returns {Function} Returns the new pairs function.\n */\n function createToPairs(keysFunc) {\n return function(object) {\n var tag = getTag(object);\n if (tag == mapTag) {\n return mapToArray(object);\n }\n if (tag == setTag) {\n return setToPairs(object);\n }\n return baseToPairs(object, keysFunc(object));\n };\n }\n\n /**\n * Creates a function that either curries or invokes `func` with optional\n * `this` binding and partially applied arguments.\n *\n * @private\n * @param {Function|string} func The function or method name to wrap.\n * @param {number} bitmask The bitmask flags.\n * 1 - `_.bind`\n * 2 - `_.bindKey`\n * 4 - `_.curry` or `_.curryRight` of a bound function\n * 8 - `_.curry`\n * 16 - `_.curryRight`\n * 32 - `_.partial`\n * 64 - `_.partialRight`\n * 128 - `_.rearg`\n * 256 - `_.ary`\n * 512 - `_.flip`\n * @param {*} [thisArg] The `this` binding of `func`.\n * @param {Array} [partials] The arguments to be partially applied.\n * @param {Array} [holders] The `partials` placeholder indexes.\n * @param {Array} [argPos] The argument positions of the new function.\n * @param {number} [ary] The arity cap of `func`.\n * @param {number} [arity] The arity of `func`.\n * @returns {Function} Returns the new wrapped function.\n */\n function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {\n var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;\n if (!isBindKey && typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var length = partials ? partials.length : 0;\n if (!length) {\n bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);\n partials = holders = undefined;\n }\n ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);\n arity = arity === undefined ? arity : toInteger(arity);\n length -= holders ? holders.length : 0;\n\n if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {\n var partialsRight = partials,\n holdersRight = holders;\n\n partials = holders = undefined;\n }\n var data = isBindKey ? undefined : getData(func);\n\n var newData = [\n func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,\n argPos, ary, arity\n ];\n\n if (data) {\n mergeData(newData, data);\n }\n func = newData[0];\n bitmask = newData[1];\n thisArg = newData[2];\n partials = newData[3];\n holders = newData[4];\n arity = newData[9] = newData[9] === undefined\n ? (isBindKey ? 0 : func.length)\n : nativeMax(newData[9] - length, 0);\n\n if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {\n bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);\n }\n if (!bitmask || bitmask == WRAP_BIND_FLAG) {\n var result = createBind(func, bitmask, thisArg);\n } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {\n result = createCurry(func, bitmask, arity);\n } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {\n result = createPartial(func, bitmask, thisArg, partials);\n } else {\n result = createHybrid.apply(undefined, newData);\n }\n var setter = data ? baseSetData : setData;\n return setWrapToString(setter(result, newData), func, bitmask);\n }\n\n /**\n * Used by `_.defaults` to customize its `_.assignIn` use to assign properties\n * of source objects to the destination object for all destination properties\n * that resolve to `undefined`.\n *\n * @private\n * @param {*} objValue The destination value.\n * @param {*} srcValue The source value.\n * @param {string} key The key of the property to assign.\n * @param {Object} object The parent object of `objValue`.\n * @returns {*} Returns the value to assign.\n */\n function customDefaultsAssignIn(objValue, srcValue, key, object) {\n if (objValue === undefined ||\n (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n return srcValue;\n }\n return objValue;\n }\n\n /**\n * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source\n * objects into destination objects that are passed thru.\n *\n * @private\n * @param {*} objValue The destination value.\n * @param {*} srcValue The source value.\n * @param {string} key The key of the property to merge.\n * @param {Object} object The parent object of `objValue`.\n * @param {Object} source The parent object of `srcValue`.\n * @param {Object} [stack] Tracks traversed source values and their merged\n * counterparts.\n * @returns {*} Returns the value to assign.\n */\n function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {\n if (isObject(objValue) && isObject(srcValue)) {\n // Recursively merge objects and arrays (susceptible to call stack limits).\n stack.set(srcValue, objValue);\n baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);\n stack['delete'](srcValue);\n }\n return objValue;\n }\n\n /**\n * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain\n * objects.\n *\n * @private\n * @param {*} value The value to inspect.\n * @param {string} key The key of the property to inspect.\n * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.\n */\n function customOmitClone(value) {\n return isPlainObject(value) ? undefined : value;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for arrays with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Array} array The array to compare.\n * @param {Array} other The other array to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `array` and `other` objects.\n * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.\n */\n function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n arrLength = array.length,\n othLength = other.length;\n\n if (arrLength != othLength && !(isPartial && othLength > arrLength)) {\n return false;\n }\n // Check that cyclic values are equal.\n var arrStacked = stack.get(array);\n var othStacked = stack.get(other);\n if (arrStacked && othStacked) {\n return arrStacked == other && othStacked == array;\n }\n var index = -1,\n result = true,\n seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;\n\n stack.set(array, other);\n stack.set(other, array);\n\n // Ignore non-index properties.\n while (++index < arrLength) {\n var arrValue = array[index],\n othValue = other[index];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, arrValue, index, other, array, stack)\n : customizer(arrValue, othValue, index, array, other, stack);\n }\n if (compared !== undefined) {\n if (compared) {\n continue;\n }\n result = false;\n break;\n }\n // Recursively compare arrays (susceptible to call stack limits).\n if (seen) {\n if (!arraySome(other, function(othValue, othIndex) {\n if (!cacheHas(seen, othIndex) &&\n (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {\n return seen.push(othIndex);\n }\n })) {\n result = false;\n break;\n }\n } else if (!(\n arrValue === othValue ||\n equalFunc(arrValue, othValue, bitmask, customizer, stack)\n )) {\n result = false;\n break;\n }\n }\n stack['delete'](array);\n stack['delete'](other);\n return result;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for comparing objects of\n * the same `toStringTag`.\n *\n * **Note:** This function only supports comparing values with tags of\n * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {string} tag The `toStringTag` of the objects to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {\n switch (tag) {\n case dataViewTag:\n if ((object.byteLength != other.byteLength) ||\n (object.byteOffset != other.byteOffset)) {\n return false;\n }\n object = object.buffer;\n other = other.buffer;\n\n case arrayBufferTag:\n if ((object.byteLength != other.byteLength) ||\n !equalFunc(new Uint8Array(object), new Uint8Array(other))) {\n return false;\n }\n return true;\n\n case boolTag:\n case dateTag:\n case numberTag:\n // Coerce booleans to `1` or `0` and dates to milliseconds.\n // Invalid dates are coerced to `NaN`.\n return eq(+object, +other);\n\n case errorTag:\n return object.name == other.name && object.message == other.message;\n\n case regexpTag:\n case stringTag:\n // Coerce regexes to strings and treat strings, primitives and objects,\n // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring\n // for more details.\n return object == (other + '');\n\n case mapTag:\n var convert = mapToArray;\n\n case setTag:\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG;\n convert || (convert = setToArray);\n\n if (object.size != other.size && !isPartial) {\n return false;\n }\n // Assume cyclic values are equal.\n var stacked = stack.get(object);\n if (stacked) {\n return stacked == other;\n }\n bitmask |= COMPARE_UNORDERED_FLAG;\n\n // Recursively compare objects (susceptible to call stack limits).\n stack.set(object, other);\n var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);\n stack['delete'](object);\n return result;\n\n case symbolTag:\n if (symbolValueOf) {\n return symbolValueOf.call(object) == symbolValueOf.call(other);\n }\n }\n return false;\n }\n\n /**\n * A specialized version of `baseIsEqualDeep` for objects with support for\n * partial deep comparisons.\n *\n * @private\n * @param {Object} object The object to compare.\n * @param {Object} other The other object to compare.\n * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.\n * @param {Function} customizer The function to customize comparisons.\n * @param {Function} equalFunc The function to determine equivalents of values.\n * @param {Object} stack Tracks traversed `object` and `other` objects.\n * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.\n */\n function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {\n var isPartial = bitmask & COMPARE_PARTIAL_FLAG,\n objProps = getAllKeys(object),\n objLength = objProps.length,\n othProps = getAllKeys(other),\n othLength = othProps.length;\n\n if (objLength != othLength && !isPartial) {\n return false;\n }\n var index = objLength;\n while (index--) {\n var key = objProps[index];\n if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {\n return false;\n }\n }\n // Check that cyclic values are equal.\n var objStacked = stack.get(object);\n var othStacked = stack.get(other);\n if (objStacked && othStacked) {\n return objStacked == other && othStacked == object;\n }\n var result = true;\n stack.set(object, other);\n stack.set(other, object);\n\n var skipCtor = isPartial;\n while (++index < objLength) {\n key = objProps[index];\n var objValue = object[key],\n othValue = other[key];\n\n if (customizer) {\n var compared = isPartial\n ? customizer(othValue, objValue, key, other, object, stack)\n : customizer(objValue, othValue, key, object, other, stack);\n }\n // Recursively compare objects (susceptible to call stack limits).\n if (!(compared === undefined\n ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))\n : compared\n )) {\n result = false;\n break;\n }\n skipCtor || (skipCtor = key == 'constructor');\n }\n if (result && !skipCtor) {\n var objCtor = object.constructor,\n othCtor = other.constructor;\n\n // Non `Object` object instances with different constructors are not equal.\n if (objCtor != othCtor &&\n ('constructor' in object && 'constructor' in other) &&\n !(typeof objCtor == 'function' && objCtor instanceof objCtor &&\n typeof othCtor == 'function' && othCtor instanceof othCtor)) {\n result = false;\n }\n }\n stack['delete'](object);\n stack['delete'](other);\n return result;\n }\n\n /**\n * A specialized version of `baseRest` which flattens the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @returns {Function} Returns the new function.\n */\n function flatRest(func) {\n return setToString(overRest(func, undefined, flatten), func + '');\n }\n\n /**\n * Creates an array of own enumerable property names and symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function getAllKeys(object) {\n return baseGetAllKeys(object, keys, getSymbols);\n }\n\n /**\n * Creates an array of own and inherited enumerable property names and\n * symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names and symbols.\n */\n function getAllKeysIn(object) {\n return baseGetAllKeys(object, keysIn, getSymbolsIn);\n }\n\n /**\n * Gets metadata for `func`.\n *\n * @private\n * @param {Function} func The function to query.\n * @returns {*} Returns the metadata for `func`.\n */\n var getData = !metaMap ? noop : function(func) {\n return metaMap.get(func);\n };\n\n /**\n * Gets the name of `func`.\n *\n * @private\n * @param {Function} func The function to query.\n * @returns {string} Returns the function name.\n */\n function getFuncName(func) {\n var result = (func.name + ''),\n array = realNames[result],\n length = hasOwnProperty.call(realNames, result) ? array.length : 0;\n\n while (length--) {\n var data = array[length],\n otherFunc = data.func;\n if (otherFunc == null || otherFunc == func) {\n return data.name;\n }\n }\n return result;\n }\n\n /**\n * Gets the argument placeholder value for `func`.\n *\n * @private\n * @param {Function} func The function to inspect.\n * @returns {*} Returns the placeholder value.\n */\n function getHolder(func) {\n var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;\n return object.placeholder;\n }\n\n /**\n * Gets the appropriate \"iteratee\" function. If `_.iteratee` is customized,\n * this function returns the custom method, otherwise it returns `baseIteratee`.\n * If arguments are provided, the chosen function is invoked with them and\n * its result is returned.\n *\n * @private\n * @param {*} [value] The value to convert to an iteratee.\n * @param {number} [arity] The arity of the created iteratee.\n * @returns {Function} Returns the chosen function or its result.\n */\n function getIteratee() {\n var result = lodash.iteratee || iteratee;\n result = result === iteratee ? baseIteratee : result;\n return arguments.length ? result(arguments[0], arguments[1]) : result;\n }\n\n /**\n * Gets the data for `map`.\n *\n * @private\n * @param {Object} map The map to query.\n * @param {string} key The reference key.\n * @returns {*} Returns the map data.\n */\n function getMapData(map, key) {\n var data = map.__data__;\n return isKeyable(key)\n ? data[typeof key == 'string' ? 'string' : 'hash']\n : data.map;\n }\n\n /**\n * Gets the property names, values, and compare flags of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the match data of `object`.\n */\n function getMatchData(object) {\n var result = keys(object),\n length = result.length;\n\n while (length--) {\n var key = result[length],\n value = object[key];\n\n result[length] = [key, value, isStrictComparable(value)];\n }\n return result;\n }\n\n /**\n * Gets the native function at `key` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the method to get.\n * @returns {*} Returns the function if it's native, else `undefined`.\n */\n function getNative(object, key) {\n var value = getValue(object, key);\n return baseIsNative(value) ? value : undefined;\n }\n\n /**\n * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the raw `toStringTag`.\n */\n function getRawTag(value) {\n var isOwn = hasOwnProperty.call(value, symToStringTag),\n tag = value[symToStringTag];\n\n try {\n value[symToStringTag] = undefined;\n var unmasked = true;\n } catch (e) {}\n\n var result = nativeObjectToString.call(value);\n if (unmasked) {\n if (isOwn) {\n value[symToStringTag] = tag;\n } else {\n delete value[symToStringTag];\n }\n }\n return result;\n }\n\n /**\n * Creates an array of the own enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\n var getSymbols = !nativeGetSymbols ? stubArray : function(object) {\n if (object == null) {\n return [];\n }\n object = Object(object);\n return arrayFilter(nativeGetSymbols(object), function(symbol) {\n return propertyIsEnumerable.call(object, symbol);\n });\n };\n\n /**\n * Creates an array of the own and inherited enumerable symbols of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of symbols.\n */\n var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {\n var result = [];\n while (object) {\n arrayPush(result, getSymbols(object));\n object = getPrototype(object);\n }\n return result;\n };\n\n /**\n * Gets the `toStringTag` of `value`.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\n var getTag = baseGetTag;\n\n // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.\n if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||\n (Map && getTag(new Map) != mapTag) ||\n (Promise && getTag(Promise.resolve()) != promiseTag) ||\n (Set && getTag(new Set) != setTag) ||\n (WeakMap && getTag(new WeakMap) != weakMapTag)) {\n getTag = function(value) {\n var result = baseGetTag(value),\n Ctor = result == objectTag ? value.constructor : undefined,\n ctorString = Ctor ? toSource(Ctor) : '';\n\n if (ctorString) {\n switch (ctorString) {\n case dataViewCtorString: return dataViewTag;\n case mapCtorString: return mapTag;\n case promiseCtorString: return promiseTag;\n case setCtorString: return setTag;\n case weakMapCtorString: return weakMapTag;\n }\n }\n return result;\n };\n }\n\n /**\n * Gets the view, applying any `transforms` to the `start` and `end` positions.\n *\n * @private\n * @param {number} start The start of the view.\n * @param {number} end The end of the view.\n * @param {Array} transforms The transformations to apply to the view.\n * @returns {Object} Returns an object containing the `start` and `end`\n * positions of the view.\n */\n function getView(start, end, transforms) {\n var index = -1,\n length = transforms.length;\n\n while (++index < length) {\n var data = transforms[index],\n size = data.size;\n\n switch (data.type) {\n case 'drop': start += size; break;\n case 'dropRight': end -= size; break;\n case 'take': end = nativeMin(end, start + size); break;\n case 'takeRight': start = nativeMax(start, end - size); break;\n }\n }\n return { 'start': start, 'end': end };\n }\n\n /**\n * Extracts wrapper details from the `source` body comment.\n *\n * @private\n * @param {string} source The source to inspect.\n * @returns {Array} Returns the wrapper details.\n */\n function getWrapDetails(source) {\n var match = source.match(reWrapDetails);\n return match ? match[1].split(reSplitDetails) : [];\n }\n\n /**\n * Checks if `path` exists on `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @param {Function} hasFunc The function to check properties.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n */\n function hasPath(object, path, hasFunc) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length,\n result = false;\n\n while (++index < length) {\n var key = toKey(path[index]);\n if (!(result = object != null && hasFunc(object, key))) {\n break;\n }\n object = object[key];\n }\n if (result || ++index != length) {\n return result;\n }\n length = object == null ? 0 : object.length;\n return !!length && isLength(length) && isIndex(key, length) &&\n (isArray(object) || isArguments(object));\n }\n\n /**\n * Initializes an array clone.\n *\n * @private\n * @param {Array} array The array to clone.\n * @returns {Array} Returns the initialized clone.\n */\n function initCloneArray(array) {\n var length = array.length,\n result = new array.constructor(length);\n\n // Add properties assigned by `RegExp#exec`.\n if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {\n result.index = array.index;\n result.input = array.input;\n }\n return result;\n }\n\n /**\n * Initializes an object clone.\n *\n * @private\n * @param {Object} object The object to clone.\n * @returns {Object} Returns the initialized clone.\n */\n function initCloneObject(object) {\n return (typeof object.constructor == 'function' && !isPrototype(object))\n ? baseCreate(getPrototype(object))\n : {};\n }\n\n /**\n * Initializes an object clone based on its `toStringTag`.\n *\n * **Note:** This function only supports cloning values with tags of\n * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.\n *\n * @private\n * @param {Object} object The object to clone.\n * @param {string} tag The `toStringTag` of the object to clone.\n * @param {boolean} [isDeep] Specify a deep clone.\n * @returns {Object} Returns the initialized clone.\n */\n function initCloneByTag(object, tag, isDeep) {\n var Ctor = object.constructor;\n switch (tag) {\n case arrayBufferTag:\n return cloneArrayBuffer(object);\n\n case boolTag:\n case dateTag:\n return new Ctor(+object);\n\n case dataViewTag:\n return cloneDataView(object, isDeep);\n\n case float32Tag: case float64Tag:\n case int8Tag: case int16Tag: case int32Tag:\n case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:\n return cloneTypedArray(object, isDeep);\n\n case mapTag:\n return new Ctor;\n\n case numberTag:\n case stringTag:\n return new Ctor(object);\n\n case regexpTag:\n return cloneRegExp(object);\n\n case setTag:\n return new Ctor;\n\n case symbolTag:\n return cloneSymbol(object);\n }\n }\n\n /**\n * Inserts wrapper `details` in a comment at the top of the `source` body.\n *\n * @private\n * @param {string} source The source to modify.\n * @returns {Array} details The details to insert.\n * @returns {string} Returns the modified source.\n */\n function insertWrapDetails(source, details) {\n var length = details.length;\n if (!length) {\n return source;\n }\n var lastIndex = length - 1;\n details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];\n details = details.join(length > 2 ? ', ' : ' ');\n return source.replace(reWrapComment, '{\\n/* [wrapped with ' + details + '] */\\n');\n }\n\n /**\n * Checks if `value` is a flattenable `arguments` object or array.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.\n */\n function isFlattenable(value) {\n return isArray(value) || isArguments(value) ||\n !!(spreadableSymbol && value && value[spreadableSymbol]);\n }\n\n /**\n * Checks if `value` is a valid array-like index.\n *\n * @private\n * @param {*} value The value to check.\n * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.\n * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.\n */\n function isIndex(value, length) {\n var type = typeof value;\n length = length == null ? MAX_SAFE_INTEGER : length;\n\n return !!length &&\n (type == 'number' ||\n (type != 'symbol' && reIsUint.test(value))) &&\n (value > -1 && value % 1 == 0 && value < length);\n }\n\n /**\n * Checks if the given arguments are from an iteratee call.\n *\n * @private\n * @param {*} value The potential iteratee value argument.\n * @param {*} index The potential iteratee index or key argument.\n * @param {*} object The potential iteratee object argument.\n * @returns {boolean} Returns `true` if the arguments are from an iteratee call,\n * else `false`.\n */\n function isIterateeCall(value, index, object) {\n if (!isObject(object)) {\n return false;\n }\n var type = typeof index;\n if (type == 'number'\n ? (isArrayLike(object) && isIndex(index, object.length))\n : (type == 'string' && index in object)\n ) {\n return eq(object[index], value);\n }\n return false;\n }\n\n /**\n * Checks if `value` is a property name and not a property path.\n *\n * @private\n * @param {*} value The value to check.\n * @param {Object} [object] The object to query keys on.\n * @returns {boolean} Returns `true` if `value` is a property name, else `false`.\n */\n function isKey(value, object) {\n if (isArray(value)) {\n return false;\n }\n var type = typeof value;\n if (type == 'number' || type == 'symbol' || type == 'boolean' ||\n value == null || isSymbol(value)) {\n return true;\n }\n return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||\n (object != null && value in Object(object));\n }\n\n /**\n * Checks if `value` is suitable for use as unique object key.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is suitable, else `false`.\n */\n function isKeyable(value) {\n var type = typeof value;\n return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')\n ? (value !== '__proto__')\n : (value === null);\n }\n\n /**\n * Checks if `func` has a lazy counterpart.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` has a lazy counterpart,\n * else `false`.\n */\n function isLaziable(func) {\n var funcName = getFuncName(func),\n other = lodash[funcName];\n\n if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {\n return false;\n }\n if (func === other) {\n return true;\n }\n var data = getData(other);\n return !!data && func === data[0];\n }\n\n /**\n * Checks if `func` has its source masked.\n *\n * @private\n * @param {Function} func The function to check.\n * @returns {boolean} Returns `true` if `func` is masked, else `false`.\n */\n function isMasked(func) {\n return !!maskSrcKey && (maskSrcKey in func);\n }\n\n /**\n * Checks if `func` is capable of being masked.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `func` is maskable, else `false`.\n */\n var isMaskable = coreJsData ? isFunction : stubFalse;\n\n /**\n * Checks if `value` is likely a prototype object.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.\n */\n function isPrototype(value) {\n var Ctor = value && value.constructor,\n proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;\n\n return value === proto;\n }\n\n /**\n * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` if suitable for strict\n * equality comparisons, else `false`.\n */\n function isStrictComparable(value) {\n return value === value && !isObject(value);\n }\n\n /**\n * A specialized version of `matchesProperty` for source values suitable\n * for strict equality comparisons, i.e. `===`.\n *\n * @private\n * @param {string} key The key of the property to get.\n * @param {*} srcValue The value to match.\n * @returns {Function} Returns the new spec function.\n */\n function matchesStrictComparable(key, srcValue) {\n return function(object) {\n if (object == null) {\n return false;\n }\n return object[key] === srcValue &&\n (srcValue !== undefined || (key in Object(object)));\n };\n }\n\n /**\n * A specialized version of `_.memoize` which clears the memoized function's\n * cache when it exceeds `MAX_MEMOIZE_SIZE`.\n *\n * @private\n * @param {Function} func The function to have its output memoized.\n * @returns {Function} Returns the new memoized function.\n */\n function memoizeCapped(func) {\n var result = memoize(func, function(key) {\n if (cache.size === MAX_MEMOIZE_SIZE) {\n cache.clear();\n }\n return key;\n });\n\n var cache = result.cache;\n return result;\n }\n\n /**\n * Merges the function metadata of `source` into `data`.\n *\n * Merging metadata reduces the number of wrappers used to invoke a function.\n * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`\n * may be applied regardless of execution order. Methods like `_.ary` and\n * `_.rearg` modify function arguments, making the order in which they are\n * executed important, preventing the merging of metadata. However, we make\n * an exception for a safe combined case where curried functions have `_.ary`\n * and or `_.rearg` applied.\n *\n * @private\n * @param {Array} data The destination metadata.\n * @param {Array} source The source metadata.\n * @returns {Array} Returns `data`.\n */\n function mergeData(data, source) {\n var bitmask = data[1],\n srcBitmask = source[1],\n newBitmask = bitmask | srcBitmask,\n isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);\n\n var isCombo =\n ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||\n ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||\n ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));\n\n // Exit early if metadata can't be merged.\n if (!(isCommon || isCombo)) {\n return data;\n }\n // Use source `thisArg` if available.\n if (srcBitmask & WRAP_BIND_FLAG) {\n data[2] = source[2];\n // Set when currying a bound function.\n newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;\n }\n // Compose partial arguments.\n var value = source[3];\n if (value) {\n var partials = data[3];\n data[3] = partials ? composeArgs(partials, value, source[4]) : value;\n data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];\n }\n // Compose partial right arguments.\n value = source[5];\n if (value) {\n partials = data[5];\n data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;\n data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];\n }\n // Use source `argPos` if available.\n value = source[7];\n if (value) {\n data[7] = value;\n }\n // Use source `ary` if it's smaller.\n if (srcBitmask & WRAP_ARY_FLAG) {\n data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);\n }\n // Use source `arity` if one is not provided.\n if (data[9] == null) {\n data[9] = source[9];\n }\n // Use source `func` and merge bitmasks.\n data[0] = source[0];\n data[1] = newBitmask;\n\n return data;\n }\n\n /**\n * This function is like\n * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * except that it includes inherited enumerable properties.\n *\n * @private\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n */\n function nativeKeysIn(object) {\n var result = [];\n if (object != null) {\n for (var key in Object(object)) {\n result.push(key);\n }\n }\n return result;\n }\n\n /**\n * Converts `value` to a string using `Object.prototype.toString`.\n *\n * @private\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n */\n function objectToString(value) {\n return nativeObjectToString.call(value);\n }\n\n /**\n * A specialized version of `baseRest` which transforms the rest array.\n *\n * @private\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @param {Function} transform The rest array transform.\n * @returns {Function} Returns the new function.\n */\n function overRest(func, start, transform) {\n start = nativeMax(start === undefined ? (func.length - 1) : start, 0);\n return function() {\n var args = arguments,\n index = -1,\n length = nativeMax(args.length - start, 0),\n array = Array(length);\n\n while (++index < length) {\n array[index] = args[start + index];\n }\n index = -1;\n var otherArgs = Array(start + 1);\n while (++index < start) {\n otherArgs[index] = args[index];\n }\n otherArgs[start] = transform(array);\n return apply(func, this, otherArgs);\n };\n }\n\n /**\n * Gets the parent value at `path` of `object`.\n *\n * @private\n * @param {Object} object The object to query.\n * @param {Array} path The path to get the parent value of.\n * @returns {*} Returns the parent value.\n */\n function parent(object, path) {\n return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));\n }\n\n /**\n * Reorder `array` according to the specified indexes where the element at\n * the first index is assigned as the first element, the element at\n * the second index is assigned as the second element, and so on.\n *\n * @private\n * @param {Array} array The array to reorder.\n * @param {Array} indexes The arranged array indexes.\n * @returns {Array} Returns `array`.\n */\n function reorder(array, indexes) {\n var arrLength = array.length,\n length = nativeMin(indexes.length, arrLength),\n oldArray = copyArray(array);\n\n while (length--) {\n var index = indexes[length];\n array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;\n }\n return array;\n }\n\n /**\n * Gets the value at `key`, unless `key` is \"__proto__\" or \"constructor\".\n *\n * @private\n * @param {Object} object The object to query.\n * @param {string} key The key of the property to get.\n * @returns {*} Returns the property value.\n */\n function safeGet(object, key) {\n if (key === 'constructor' && typeof object[key] === 'function') {\n return;\n }\n\n if (key == '__proto__') {\n return;\n }\n\n return object[key];\n }\n\n /**\n * Sets metadata for `func`.\n *\n * **Note:** If this function becomes hot, i.e. is invoked a lot in a short\n * period of time, it will trip its breaker and transition to an identity\n * function to avoid garbage collection pauses in V8. See\n * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)\n * for more details.\n *\n * @private\n * @param {Function} func The function to associate metadata with.\n * @param {*} data The metadata.\n * @returns {Function} Returns `func`.\n */\n var setData = shortOut(baseSetData);\n\n /**\n * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).\n *\n * @private\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @returns {number|Object} Returns the timer id or timeout object.\n */\n var setTimeout = ctxSetTimeout || function(func, wait) {\n return root.setTimeout(func, wait);\n };\n\n /**\n * Sets the `toString` method of `func` to return `string`.\n *\n * @private\n * @param {Function} func The function to modify.\n * @param {Function} string The `toString` result.\n * @returns {Function} Returns `func`.\n */\n var setToString = shortOut(baseSetToString);\n\n /**\n * Sets the `toString` method of `wrapper` to mimic the source of `reference`\n * with wrapper details in a comment at the top of the source body.\n *\n * @private\n * @param {Function} wrapper The function to modify.\n * @param {Function} reference The reference function.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @returns {Function} Returns `wrapper`.\n */\n function setWrapToString(wrapper, reference, bitmask) {\n var source = (reference + '');\n return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));\n }\n\n /**\n * Creates a function that'll short out and invoke `identity` instead\n * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`\n * milliseconds.\n *\n * @private\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new shortable function.\n */\n function shortOut(func) {\n var count = 0,\n lastCalled = 0;\n\n return function() {\n var stamp = nativeNow(),\n remaining = HOT_SPAN - (stamp - lastCalled);\n\n lastCalled = stamp;\n if (remaining > 0) {\n if (++count >= HOT_COUNT) {\n return arguments[0];\n }\n } else {\n count = 0;\n }\n return func.apply(undefined, arguments);\n };\n }\n\n /**\n * A specialized version of `_.shuffle` which mutates and sets the size of `array`.\n *\n * @private\n * @param {Array} array The array to shuffle.\n * @param {number} [size=array.length] The size of `array`.\n * @returns {Array} Returns `array`.\n */\n function shuffleSelf(array, size) {\n var index = -1,\n length = array.length,\n lastIndex = length - 1;\n\n size = size === undefined ? length : size;\n while (++index < size) {\n var rand = baseRandom(index, lastIndex),\n value = array[rand];\n\n array[rand] = array[index];\n array[index] = value;\n }\n array.length = size;\n return array;\n }\n\n /**\n * Converts `string` to a property path array.\n *\n * @private\n * @param {string} string The string to convert.\n * @returns {Array} Returns the property path array.\n */\n var stringToPath = memoizeCapped(function(string) {\n var result = [];\n if (string.charCodeAt(0) === 46 /* . */) {\n result.push('');\n }\n string.replace(rePropName, function(match, number, quote, subString) {\n result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));\n });\n return result;\n });\n\n /**\n * Converts `value` to a string key if it's not a string or symbol.\n *\n * @private\n * @param {*} value The value to inspect.\n * @returns {string|symbol} Returns the key.\n */\n function toKey(value) {\n if (typeof value == 'string' || isSymbol(value)) {\n return value;\n }\n var result = (value + '');\n return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;\n }\n\n /**\n * Converts `func` to its source code.\n *\n * @private\n * @param {Function} func The function to convert.\n * @returns {string} Returns the source code.\n */\n function toSource(func) {\n if (func != null) {\n try {\n return funcToString.call(func);\n } catch (e) {}\n try {\n return (func + '');\n } catch (e) {}\n }\n return '';\n }\n\n /**\n * Updates wrapper `details` based on `bitmask` flags.\n *\n * @private\n * @returns {Array} details The details to modify.\n * @param {number} bitmask The bitmask flags. See `createWrap` for more details.\n * @returns {Array} Returns `details`.\n */\n function updateWrapDetails(details, bitmask) {\n arrayEach(wrapFlags, function(pair) {\n var value = '_.' + pair[0];\n if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {\n details.push(value);\n }\n });\n return details.sort();\n }\n\n /**\n * Creates a clone of `wrapper`.\n *\n * @private\n * @param {Object} wrapper The wrapper to clone.\n * @returns {Object} Returns the cloned wrapper.\n */\n function wrapperClone(wrapper) {\n if (wrapper instanceof LazyWrapper) {\n return wrapper.clone();\n }\n var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);\n result.__actions__ = copyArray(wrapper.__actions__);\n result.__index__ = wrapper.__index__;\n result.__values__ = wrapper.__values__;\n return result;\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an array of elements split into groups the length of `size`.\n * If `array` can't be split evenly, the final chunk will be the remaining\n * elements.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to process.\n * @param {number} [size=1] The length of each chunk\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the new array of chunks.\n * @example\n *\n * _.chunk(['a', 'b', 'c', 'd'], 2);\n * // => [['a', 'b'], ['c', 'd']]\n *\n * _.chunk(['a', 'b', 'c', 'd'], 3);\n * // => [['a', 'b', 'c'], ['d']]\n */\n function chunk(array, size, guard) {\n if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {\n size = 1;\n } else {\n size = nativeMax(toInteger(size), 0);\n }\n var length = array == null ? 0 : array.length;\n if (!length || size < 1) {\n return [];\n }\n var index = 0,\n resIndex = 0,\n result = Array(nativeCeil(length / size));\n\n while (index < length) {\n result[resIndex++] = baseSlice(array, index, (index += size));\n }\n return result;\n }\n\n /**\n * Creates an array with all falsey values removed. The values `false`, `null`,\n * `0`, `\"\"`, `undefined`, and `NaN` are falsey.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to compact.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.compact([0, 1, false, 2, '', 3]);\n * // => [1, 2, 3]\n */\n function compact(array) {\n var index = -1,\n length = array == null ? 0 : array.length,\n resIndex = 0,\n result = [];\n\n while (++index < length) {\n var value = array[index];\n if (value) {\n result[resIndex++] = value;\n }\n }\n return result;\n }\n\n /**\n * Creates a new array concatenating `array` with any additional arrays\n * and/or values.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to concatenate.\n * @param {...*} [values] The values to concatenate.\n * @returns {Array} Returns the new concatenated array.\n * @example\n *\n * var array = [1];\n * var other = _.concat(array, 2, [3], [[4]]);\n *\n * console.log(other);\n * // => [1, 2, 3, [4]]\n *\n * console.log(array);\n * // => [1]\n */\n function concat() {\n var length = arguments.length;\n if (!length) {\n return [];\n }\n var args = Array(length - 1),\n array = arguments[0],\n index = length;\n\n while (index--) {\n args[index - 1] = arguments[index];\n }\n return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));\n }\n\n /**\n * Creates an array of `array` values not included in the other given arrays\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. The order and references of result values are\n * determined by the first array.\n *\n * **Note:** Unlike `_.pullAll`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.without, _.xor\n * @example\n *\n * _.difference([2, 1], [2, 3]);\n * // => [1]\n */\n var difference = baseRest(function(array, values) {\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))\n : [];\n });\n\n /**\n * This method is like `_.difference` except that it accepts `iteratee` which\n * is invoked for each element of `array` and `values` to generate the criterion\n * by which they're compared. The order and references of result values are\n * determined by the first array. The iteratee is invoked with one argument:\n * (value).\n *\n * **Note:** Unlike `_.pullAllBy`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');\n * // => [{ 'x': 2 }]\n */\n var differenceBy = baseRest(function(array, values) {\n var iteratee = last(values);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))\n : [];\n });\n\n /**\n * This method is like `_.difference` except that it accepts `comparator`\n * which is invoked to compare elements of `array` to `values`. The order and\n * references of result values are determined by the first array. The comparator\n * is invoked with two arguments: (arrVal, othVal).\n *\n * **Note:** Unlike `_.pullAllWith`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...Array} [values] The values to exclude.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n *\n * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);\n * // => [{ 'x': 2, 'y': 1 }]\n */\n var differenceWith = baseRest(function(array, values) {\n var comparator = last(values);\n if (isArrayLikeObject(comparator)) {\n comparator = undefined;\n }\n return isArrayLikeObject(array)\n ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)\n : [];\n });\n\n /**\n * Creates a slice of `array` with `n` elements dropped from the beginning.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to drop.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.drop([1, 2, 3]);\n * // => [2, 3]\n *\n * _.drop([1, 2, 3], 2);\n * // => [3]\n *\n * _.drop([1, 2, 3], 5);\n * // => []\n *\n * _.drop([1, 2, 3], 0);\n * // => [1, 2, 3]\n */\n function drop(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n return baseSlice(array, n < 0 ? 0 : n, length);\n }\n\n /**\n * Creates a slice of `array` with `n` elements dropped from the end.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to drop.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.dropRight([1, 2, 3]);\n * // => [1, 2]\n *\n * _.dropRight([1, 2, 3], 2);\n * // => [1]\n *\n * _.dropRight([1, 2, 3], 5);\n * // => []\n *\n * _.dropRight([1, 2, 3], 0);\n * // => [1, 2, 3]\n */\n function dropRight(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n n = length - n;\n return baseSlice(array, 0, n < 0 ? 0 : n);\n }\n\n /**\n * Creates a slice of `array` excluding elements dropped from the end.\n * Elements are dropped until `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.dropRightWhile(users, function(o) { return !o.active; });\n * // => objects for ['barney']\n *\n * // The `_.matches` iteratee shorthand.\n * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });\n * // => objects for ['barney', 'fred']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.dropRightWhile(users, ['active', false]);\n * // => objects for ['barney']\n *\n * // The `_.property` iteratee shorthand.\n * _.dropRightWhile(users, 'active');\n * // => objects for ['barney', 'fred', 'pebbles']\n */\n function dropRightWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), true, true)\n : [];\n }\n\n /**\n * Creates a slice of `array` excluding elements dropped from the beginning.\n * Elements are dropped until `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.dropWhile(users, function(o) { return !o.active; });\n * // => objects for ['pebbles']\n *\n * // The `_.matches` iteratee shorthand.\n * _.dropWhile(users, { 'user': 'barney', 'active': false });\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.dropWhile(users, ['active', false]);\n * // => objects for ['pebbles']\n *\n * // The `_.property` iteratee shorthand.\n * _.dropWhile(users, 'active');\n * // => objects for ['barney', 'fred', 'pebbles']\n */\n function dropWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), true)\n : [];\n }\n\n /**\n * Fills elements of `array` with `value` from `start` up to, but not\n * including, `end`.\n *\n * **Note:** This method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 3.2.0\n * @category Array\n * @param {Array} array The array to fill.\n * @param {*} value The value to fill `array` with.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _.fill(array, 'a');\n * console.log(array);\n * // => ['a', 'a', 'a']\n *\n * _.fill(Array(3), 2);\n * // => [2, 2, 2]\n *\n * _.fill([4, 6, 8, 10], '*', 1, 3);\n * // => [4, '*', '*', 10]\n */\n function fill(array, value, start, end) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {\n start = 0;\n end = length;\n }\n return baseFill(array, value, start, end);\n }\n\n /**\n * This method is like `_.find` except that it returns the index of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {number} Returns the index of the found element, else `-1`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.findIndex(users, function(o) { return o.user == 'barney'; });\n * // => 0\n *\n * // The `_.matches` iteratee shorthand.\n * _.findIndex(users, { 'user': 'fred', 'active': false });\n * // => 1\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findIndex(users, ['active', false]);\n * // => 0\n *\n * // The `_.property` iteratee shorthand.\n * _.findIndex(users, 'active');\n * // => 2\n */\n function findIndex(array, predicate, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = fromIndex == null ? 0 : toInteger(fromIndex);\n if (index < 0) {\n index = nativeMax(length + index, 0);\n }\n return baseFindIndex(array, getIteratee(predicate, 3), index);\n }\n\n /**\n * This method is like `_.findIndex` except that it iterates over elements\n * of `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=array.length-1] The index to search from.\n * @returns {number} Returns the index of the found element, else `-1`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });\n * // => 2\n *\n * // The `_.matches` iteratee shorthand.\n * _.findLastIndex(users, { 'user': 'barney', 'active': true });\n * // => 0\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findLastIndex(users, ['active', false]);\n * // => 2\n *\n * // The `_.property` iteratee shorthand.\n * _.findLastIndex(users, 'active');\n * // => 0\n */\n function findLastIndex(array, predicate, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = length - 1;\n if (fromIndex !== undefined) {\n index = toInteger(fromIndex);\n index = fromIndex < 0\n ? nativeMax(length + index, 0)\n : nativeMin(index, length - 1);\n }\n return baseFindIndex(array, getIteratee(predicate, 3), index, true);\n }\n\n /**\n * Flattens `array` a single level deep.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * _.flatten([1, [2, [3, [4]], 5]]);\n * // => [1, 2, [3, [4]], 5]\n */\n function flatten(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, 1) : [];\n }\n\n /**\n * Recursively flattens `array`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * _.flattenDeep([1, [2, [3, [4]], 5]]);\n * // => [1, 2, 3, 4, 5]\n */\n function flattenDeep(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseFlatten(array, INFINITY) : [];\n }\n\n /**\n * Recursively flatten `array` up to `depth` times.\n *\n * @static\n * @memberOf _\n * @since 4.4.0\n * @category Array\n * @param {Array} array The array to flatten.\n * @param {number} [depth=1] The maximum recursion depth.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * var array = [1, [2, [3, [4]], 5]];\n *\n * _.flattenDepth(array, 1);\n * // => [1, 2, [3, [4]], 5]\n *\n * _.flattenDepth(array, 2);\n * // => [1, 2, 3, [4], 5]\n */\n function flattenDepth(array, depth) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n depth = depth === undefined ? 1 : toInteger(depth);\n return baseFlatten(array, depth);\n }\n\n /**\n * The inverse of `_.toPairs`; this method returns an object composed\n * from key-value `pairs`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} pairs The key-value pairs.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.fromPairs([['a', 1], ['b', 2]]);\n * // => { 'a': 1, 'b': 2 }\n */\n function fromPairs(pairs) {\n var index = -1,\n length = pairs == null ? 0 : pairs.length,\n result = {};\n\n while (++index < length) {\n var pair = pairs[index];\n result[pair[0]] = pair[1];\n }\n return result;\n }\n\n /**\n * Gets the first element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @alias first\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the first element of `array`.\n * @example\n *\n * _.head([1, 2, 3]);\n * // => 1\n *\n * _.head([]);\n * // => undefined\n */\n function head(array) {\n return (array && array.length) ? array[0] : undefined;\n }\n\n /**\n * Gets the index at which the first occurrence of `value` is found in `array`\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. If `fromIndex` is negative, it's used as the\n * offset from the end of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.indexOf([1, 2, 1, 2], 2);\n * // => 1\n *\n * // Search from the `fromIndex`.\n * _.indexOf([1, 2, 1, 2], 2, 2);\n * // => 3\n */\n function indexOf(array, value, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = fromIndex == null ? 0 : toInteger(fromIndex);\n if (index < 0) {\n index = nativeMax(length + index, 0);\n }\n return baseIndexOf(array, value, index);\n }\n\n /**\n * Gets all but the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.initial([1, 2, 3]);\n * // => [1, 2]\n */\n function initial(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseSlice(array, 0, -1) : [];\n }\n\n /**\n * Creates an array of unique values that are included in all given arrays\n * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons. The order and references of result values are\n * determined by the first array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * _.intersection([2, 1], [2, 3]);\n * // => [2]\n */\n var intersection = baseRest(function(arrays) {\n var mapped = arrayMap(arrays, castArrayLikeObject);\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped)\n : [];\n });\n\n /**\n * This method is like `_.intersection` except that it accepts `iteratee`\n * which is invoked for each element of each `arrays` to generate the criterion\n * by which they're compared. The order and references of result values are\n * determined by the first array. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [2.1]\n *\n * // The `_.property` iteratee shorthand.\n * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }]\n */\n var intersectionBy = baseRest(function(arrays) {\n var iteratee = last(arrays),\n mapped = arrayMap(arrays, castArrayLikeObject);\n\n if (iteratee === last(mapped)) {\n iteratee = undefined;\n } else {\n mapped.pop();\n }\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped, getIteratee(iteratee, 2))\n : [];\n });\n\n /**\n * This method is like `_.intersection` except that it accepts `comparator`\n * which is invoked to compare elements of `arrays`. The order and references\n * of result values are determined by the first array. The comparator is\n * invoked with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of intersecting values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.intersectionWith(objects, others, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }]\n */\n var intersectionWith = baseRest(function(arrays) {\n var comparator = last(arrays),\n mapped = arrayMap(arrays, castArrayLikeObject);\n\n comparator = typeof comparator == 'function' ? comparator : undefined;\n if (comparator) {\n mapped.pop();\n }\n return (mapped.length && mapped[0] === arrays[0])\n ? baseIntersection(mapped, undefined, comparator)\n : [];\n });\n\n /**\n * Converts all elements in `array` into a string separated by `separator`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to convert.\n * @param {string} [separator=','] The element separator.\n * @returns {string} Returns the joined string.\n * @example\n *\n * _.join(['a', 'b', 'c'], '~');\n * // => 'a~b~c'\n */\n function join(array, separator) {\n return array == null ? '' : nativeJoin.call(array, separator);\n }\n\n /**\n * Gets the last element of `array`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {*} Returns the last element of `array`.\n * @example\n *\n * _.last([1, 2, 3]);\n * // => 3\n */\n function last(array) {\n var length = array == null ? 0 : array.length;\n return length ? array[length - 1] : undefined;\n }\n\n /**\n * This method is like `_.indexOf` except that it iterates over elements of\n * `array` from right to left.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=array.length-1] The index to search from.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.lastIndexOf([1, 2, 1, 2], 2);\n * // => 3\n *\n * // Search from the `fromIndex`.\n * _.lastIndexOf([1, 2, 1, 2], 2, 2);\n * // => 1\n */\n function lastIndexOf(array, value, fromIndex) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return -1;\n }\n var index = length;\n if (fromIndex !== undefined) {\n index = toInteger(fromIndex);\n index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);\n }\n return value === value\n ? strictLastIndexOf(array, value, index)\n : baseFindIndex(array, baseIsNaN, index, true);\n }\n\n /**\n * Gets the element at index `n` of `array`. If `n` is negative, the nth\n * element from the end is returned.\n *\n * @static\n * @memberOf _\n * @since 4.11.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=0] The index of the element to return.\n * @returns {*} Returns the nth element of `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'd'];\n *\n * _.nth(array, 1);\n * // => 'b'\n *\n * _.nth(array, -2);\n * // => 'c';\n */\n function nth(array, n) {\n return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;\n }\n\n /**\n * Removes all given values from `array` using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`\n * to remove elements from an array by predicate.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {...*} [values] The values to remove.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n *\n * _.pull(array, 'a', 'c');\n * console.log(array);\n * // => ['b', 'b']\n */\n var pull = baseRest(pullAll);\n\n /**\n * This method is like `_.pull` except that it accepts an array of values to remove.\n *\n * **Note:** Unlike `_.difference`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = ['a', 'b', 'c', 'a', 'b', 'c'];\n *\n * _.pullAll(array, ['a', 'c']);\n * console.log(array);\n * // => ['b', 'b']\n */\n function pullAll(array, values) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values)\n : array;\n }\n\n /**\n * This method is like `_.pullAll` except that it accepts `iteratee` which is\n * invoked for each element of `array` and `values` to generate the criterion\n * by which they're compared. The iteratee is invoked with one argument: (value).\n *\n * **Note:** Unlike `_.differenceBy`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];\n *\n * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');\n * console.log(array);\n * // => [{ 'x': 2 }]\n */\n function pullAllBy(array, values, iteratee) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values, getIteratee(iteratee, 2))\n : array;\n }\n\n /**\n * This method is like `_.pullAll` except that it accepts `comparator` which\n * is invoked to compare elements of `array` to `values`. The comparator is\n * invoked with two arguments: (arrVal, othVal).\n *\n * **Note:** Unlike `_.differenceWith`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Array} values The values to remove.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];\n *\n * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);\n * console.log(array);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]\n */\n function pullAllWith(array, values, comparator) {\n return (array && array.length && values && values.length)\n ? basePullAll(array, values, undefined, comparator)\n : array;\n }\n\n /**\n * Removes elements from `array` corresponding to `indexes` and returns an\n * array of removed elements.\n *\n * **Note:** Unlike `_.at`, this method mutates `array`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {...(number|number[])} [indexes] The indexes of elements to remove.\n * @returns {Array} Returns the new array of removed elements.\n * @example\n *\n * var array = ['a', 'b', 'c', 'd'];\n * var pulled = _.pullAt(array, [1, 3]);\n *\n * console.log(array);\n * // => ['a', 'c']\n *\n * console.log(pulled);\n * // => ['b', 'd']\n */\n var pullAt = flatRest(function(array, indexes) {\n var length = array == null ? 0 : array.length,\n result = baseAt(array, indexes);\n\n basePullAt(array, arrayMap(indexes, function(index) {\n return isIndex(index, length) ? +index : index;\n }).sort(compareAscending));\n\n return result;\n });\n\n /**\n * Removes all elements from `array` that `predicate` returns truthy for\n * and returns an array of the removed elements. The predicate is invoked\n * with three arguments: (value, index, array).\n *\n * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`\n * to pull elements from an array by value.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new array of removed elements.\n * @example\n *\n * var array = [1, 2, 3, 4];\n * var evens = _.remove(array, function(n) {\n * return n % 2 == 0;\n * });\n *\n * console.log(array);\n * // => [1, 3]\n *\n * console.log(evens);\n * // => [2, 4]\n */\n function remove(array, predicate) {\n var result = [];\n if (!(array && array.length)) {\n return result;\n }\n var index = -1,\n indexes = [],\n length = array.length;\n\n predicate = getIteratee(predicate, 3);\n while (++index < length) {\n var value = array[index];\n if (predicate(value, index, array)) {\n result.push(value);\n indexes.push(index);\n }\n }\n basePullAt(array, indexes);\n return result;\n }\n\n /**\n * Reverses `array` so that the first element becomes the last, the second\n * element becomes the second to last, and so on.\n *\n * **Note:** This method mutates `array` and is based on\n * [`Array#reverse`](https://mdn.io/Array/reverse).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to modify.\n * @returns {Array} Returns `array`.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _.reverse(array);\n * // => [3, 2, 1]\n *\n * console.log(array);\n * // => [3, 2, 1]\n */\n function reverse(array) {\n return array == null ? array : nativeReverse.call(array);\n }\n\n /**\n * Creates a slice of `array` from `start` up to, but not including, `end`.\n *\n * **Note:** This method is used instead of\n * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are\n * returned.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to slice.\n * @param {number} [start=0] The start position.\n * @param {number} [end=array.length] The end position.\n * @returns {Array} Returns the slice of `array`.\n */\n function slice(array, start, end) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {\n start = 0;\n end = length;\n }\n else {\n start = start == null ? 0 : toInteger(start);\n end = end === undefined ? length : toInteger(end);\n }\n return baseSlice(array, start, end);\n }\n\n /**\n * Uses a binary search to determine the lowest index at which `value`\n * should be inserted into `array` in order to maintain its sort order.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * _.sortedIndex([30, 50], 40);\n * // => 1\n */\n function sortedIndex(array, value) {\n return baseSortedIndex(array, value);\n }\n\n /**\n * This method is like `_.sortedIndex` except that it accepts `iteratee`\n * which is invoked for `value` and each element of `array` to compute their\n * sort ranking. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * var objects = [{ 'x': 4 }, { 'x': 5 }];\n *\n * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n * // => 0\n *\n * // The `_.property` iteratee shorthand.\n * _.sortedIndexBy(objects, { 'x': 4 }, 'x');\n * // => 0\n */\n function sortedIndexBy(array, value, iteratee) {\n return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));\n }\n\n /**\n * This method is like `_.indexOf` except that it performs a binary\n * search on a sorted `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.sortedIndexOf([4, 5, 5, 5, 6], 5);\n * // => 1\n */\n function sortedIndexOf(array, value) {\n var length = array == null ? 0 : array.length;\n if (length) {\n var index = baseSortedIndex(array, value);\n if (index < length && eq(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * This method is like `_.sortedIndex` except that it returns the highest\n * index at which `value` should be inserted into `array` in order to\n * maintain its sort order.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * _.sortedLastIndex([4, 5, 5, 5, 6], 5);\n * // => 4\n */\n function sortedLastIndex(array, value) {\n return baseSortedIndex(array, value, true);\n }\n\n /**\n * This method is like `_.sortedLastIndex` except that it accepts `iteratee`\n * which is invoked for `value` and each element of `array` to compute their\n * sort ranking. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The sorted array to inspect.\n * @param {*} value The value to evaluate.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {number} Returns the index at which `value` should be inserted\n * into `array`.\n * @example\n *\n * var objects = [{ 'x': 4 }, { 'x': 5 }];\n *\n * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });\n * // => 1\n *\n * // The `_.property` iteratee shorthand.\n * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');\n * // => 1\n */\n function sortedLastIndexBy(array, value, iteratee) {\n return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);\n }\n\n /**\n * This method is like `_.lastIndexOf` except that it performs a binary\n * search on a sorted `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {*} value The value to search for.\n * @returns {number} Returns the index of the matched value, else `-1`.\n * @example\n *\n * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);\n * // => 3\n */\n function sortedLastIndexOf(array, value) {\n var length = array == null ? 0 : array.length;\n if (length) {\n var index = baseSortedIndex(array, value, true) - 1;\n if (eq(array[index], value)) {\n return index;\n }\n }\n return -1;\n }\n\n /**\n * This method is like `_.uniq` except that it's designed and optimized\n * for sorted arrays.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.sortedUniq([1, 1, 2]);\n * // => [1, 2]\n */\n function sortedUniq(array) {\n return (array && array.length)\n ? baseSortedUniq(array)\n : [];\n }\n\n /**\n * This method is like `_.uniqBy` except that it's designed and optimized\n * for sorted arrays.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);\n * // => [1.1, 2.3]\n */\n function sortedUniqBy(array, iteratee) {\n return (array && array.length)\n ? baseSortedUniq(array, getIteratee(iteratee, 2))\n : [];\n }\n\n /**\n * Gets all but the first element of `array`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.tail([1, 2, 3]);\n * // => [2, 3]\n */\n function tail(array) {\n var length = array == null ? 0 : array.length;\n return length ? baseSlice(array, 1, length) : [];\n }\n\n /**\n * Creates a slice of `array` with `n` elements taken from the beginning.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to take.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.take([1, 2, 3]);\n * // => [1]\n *\n * _.take([1, 2, 3], 2);\n * // => [1, 2]\n *\n * _.take([1, 2, 3], 5);\n * // => [1, 2, 3]\n *\n * _.take([1, 2, 3], 0);\n * // => []\n */\n function take(array, n, guard) {\n if (!(array && array.length)) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n return baseSlice(array, 0, n < 0 ? 0 : n);\n }\n\n /**\n * Creates a slice of `array` with `n` elements taken from the end.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {number} [n=1] The number of elements to take.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * _.takeRight([1, 2, 3]);\n * // => [3]\n *\n * _.takeRight([1, 2, 3], 2);\n * // => [2, 3]\n *\n * _.takeRight([1, 2, 3], 5);\n * // => [1, 2, 3]\n *\n * _.takeRight([1, 2, 3], 0);\n * // => []\n */\n function takeRight(array, n, guard) {\n var length = array == null ? 0 : array.length;\n if (!length) {\n return [];\n }\n n = (guard || n === undefined) ? 1 : toInteger(n);\n n = length - n;\n return baseSlice(array, n < 0 ? 0 : n, length);\n }\n\n /**\n * Creates a slice of `array` with elements taken from the end. Elements are\n * taken until `predicate` returns falsey. The predicate is invoked with\n * three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': false }\n * ];\n *\n * _.takeRightWhile(users, function(o) { return !o.active; });\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.matches` iteratee shorthand.\n * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });\n * // => objects for ['pebbles']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.takeRightWhile(users, ['active', false]);\n * // => objects for ['fred', 'pebbles']\n *\n * // The `_.property` iteratee shorthand.\n * _.takeRightWhile(users, 'active');\n * // => []\n */\n function takeRightWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3), false, true)\n : [];\n }\n\n /**\n * Creates a slice of `array` with elements taken from the beginning. Elements\n * are taken until `predicate` returns falsey. The predicate is invoked with\n * three arguments: (value, index, array).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Array\n * @param {Array} array The array to query.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the slice of `array`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'active': false },\n * { 'user': 'fred', 'active': false },\n * { 'user': 'pebbles', 'active': true }\n * ];\n *\n * _.takeWhile(users, function(o) { return !o.active; });\n * // => objects for ['barney', 'fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.takeWhile(users, { 'user': 'barney', 'active': false });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.takeWhile(users, ['active', false]);\n * // => objects for ['barney', 'fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.takeWhile(users, 'active');\n * // => []\n */\n function takeWhile(array, predicate) {\n return (array && array.length)\n ? baseWhile(array, getIteratee(predicate, 3))\n : [];\n }\n\n /**\n * Creates an array of unique values, in order, from all given arrays using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * _.union([2], [1, 2]);\n * // => [2, 1]\n */\n var union = baseRest(function(arrays) {\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));\n });\n\n /**\n * This method is like `_.union` except that it accepts `iteratee` which is\n * invoked for each element of each `arrays` to generate the criterion by\n * which uniqueness is computed. Result values are chosen from the first\n * array in which the value occurs. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * _.unionBy([2.1], [1.2, 2.3], Math.floor);\n * // => [2.1, 1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }, { 'x': 2 }]\n */\n var unionBy = baseRest(function(arrays) {\n var iteratee = last(arrays);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));\n });\n\n /**\n * This method is like `_.union` except that it accepts `comparator` which\n * is invoked to compare elements of `arrays`. Result values are chosen from\n * the first array in which the value occurs. The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of combined values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.unionWith(objects, others, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n */\n var unionWith = baseRest(function(arrays) {\n var comparator = last(arrays);\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);\n });\n\n /**\n * Creates a duplicate-free version of an array, using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons, in which only the first occurrence of each element\n * is kept. The order of result values is determined by the order they occur\n * in the array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.uniq([2, 1, 2]);\n * // => [2, 1]\n */\n function uniq(array) {\n return (array && array.length) ? baseUniq(array) : [];\n }\n\n /**\n * This method is like `_.uniq` except that it accepts `iteratee` which is\n * invoked for each element in `array` to generate the criterion by which\n * uniqueness is computed. The order of result values is determined by the\n * order they occur in the array. The iteratee is invoked with one argument:\n * (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * _.uniqBy([2.1, 1.2, 2.3], Math.floor);\n * // => [2.1, 1.2]\n *\n * // The `_.property` iteratee shorthand.\n * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 1 }, { 'x': 2 }]\n */\n function uniqBy(array, iteratee) {\n return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];\n }\n\n /**\n * This method is like `_.uniq` except that it accepts `comparator` which\n * is invoked to compare elements of `array`. The order of result values is\n * determined by the order they occur in the array.The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new duplicate free array.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.uniqWith(objects, _.isEqual);\n * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]\n */\n function uniqWith(array, comparator) {\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return (array && array.length) ? baseUniq(array, undefined, comparator) : [];\n }\n\n /**\n * This method is like `_.zip` except that it accepts an array of grouped\n * elements and creates an array regrouping the elements to their pre-zip\n * configuration.\n *\n * @static\n * @memberOf _\n * @since 1.2.0\n * @category Array\n * @param {Array} array The array of grouped elements to process.\n * @returns {Array} Returns the new array of regrouped elements.\n * @example\n *\n * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);\n * // => [['a', 1, true], ['b', 2, false]]\n *\n * _.unzip(zipped);\n * // => [['a', 'b'], [1, 2], [true, false]]\n */\n function unzip(array) {\n if (!(array && array.length)) {\n return [];\n }\n var length = 0;\n array = arrayFilter(array, function(group) {\n if (isArrayLikeObject(group)) {\n length = nativeMax(group.length, length);\n return true;\n }\n });\n return baseTimes(length, function(index) {\n return arrayMap(array, baseProperty(index));\n });\n }\n\n /**\n * This method is like `_.unzip` except that it accepts `iteratee` to specify\n * how regrouped values should be combined. The iteratee is invoked with the\n * elements of each group: (...group).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Array\n * @param {Array} array The array of grouped elements to process.\n * @param {Function} [iteratee=_.identity] The function to combine\n * regrouped values.\n * @returns {Array} Returns the new array of regrouped elements.\n * @example\n *\n * var zipped = _.zip([1, 2], [10, 20], [100, 200]);\n * // => [[1, 10, 100], [2, 20, 200]]\n *\n * _.unzipWith(zipped, _.add);\n * // => [3, 30, 300]\n */\n function unzipWith(array, iteratee) {\n if (!(array && array.length)) {\n return [];\n }\n var result = unzip(array);\n if (iteratee == null) {\n return result;\n }\n return arrayMap(result, function(group) {\n return apply(iteratee, undefined, group);\n });\n }\n\n /**\n * Creates an array excluding all given values using\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * for equality comparisons.\n *\n * **Note:** Unlike `_.pull`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {Array} array The array to inspect.\n * @param {...*} [values] The values to exclude.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.difference, _.xor\n * @example\n *\n * _.without([2, 1, 2, 3], 1, 2);\n * // => [3]\n */\n var without = baseRest(function(array, values) {\n return isArrayLikeObject(array)\n ? baseDifference(array, values)\n : [];\n });\n\n /**\n * Creates an array of unique values that is the\n * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)\n * of the given arrays. The order of result values is determined by the order\n * they occur in the arrays.\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @returns {Array} Returns the new array of filtered values.\n * @see _.difference, _.without\n * @example\n *\n * _.xor([2, 1], [2, 3]);\n * // => [1, 3]\n */\n var xor = baseRest(function(arrays) {\n return baseXor(arrayFilter(arrays, isArrayLikeObject));\n });\n\n /**\n * This method is like `_.xor` except that it accepts `iteratee` which is\n * invoked for each element of each `arrays` to generate the criterion by\n * which by which they're compared. The order of result values is determined\n * by the order they occur in the arrays. The iteratee is invoked with one\n * argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);\n * // => [1.2, 3.4]\n *\n * // The `_.property` iteratee shorthand.\n * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');\n * // => [{ 'x': 2 }]\n */\n var xorBy = baseRest(function(arrays) {\n var iteratee = last(arrays);\n if (isArrayLikeObject(iteratee)) {\n iteratee = undefined;\n }\n return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));\n });\n\n /**\n * This method is like `_.xor` except that it accepts `comparator` which is\n * invoked to compare elements of `arrays`. The order of result values is\n * determined by the order they occur in the arrays. The comparator is invoked\n * with two arguments: (arrVal, othVal).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Array\n * @param {...Array} [arrays] The arrays to inspect.\n * @param {Function} [comparator] The comparator invoked per element.\n * @returns {Array} Returns the new array of filtered values.\n * @example\n *\n * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];\n * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];\n *\n * _.xorWith(objects, others, _.isEqual);\n * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]\n */\n var xorWith = baseRest(function(arrays) {\n var comparator = last(arrays);\n comparator = typeof comparator == 'function' ? comparator : undefined;\n return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);\n });\n\n /**\n * Creates an array of grouped elements, the first of which contains the\n * first elements of the given arrays, the second of which contains the\n * second elements of the given arrays, and so on.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Array\n * @param {...Array} [arrays] The arrays to process.\n * @returns {Array} Returns the new array of grouped elements.\n * @example\n *\n * _.zip(['a', 'b'], [1, 2], [true, false]);\n * // => [['a', 1, true], ['b', 2, false]]\n */\n var zip = baseRest(unzip);\n\n /**\n * This method is like `_.fromPairs` except that it accepts two arrays,\n * one of property identifiers and one of corresponding values.\n *\n * @static\n * @memberOf _\n * @since 0.4.0\n * @category Array\n * @param {Array} [props=[]] The property identifiers.\n * @param {Array} [values=[]] The property values.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.zipObject(['a', 'b'], [1, 2]);\n * // => { 'a': 1, 'b': 2 }\n */\n function zipObject(props, values) {\n return baseZipObject(props || [], values || [], assignValue);\n }\n\n /**\n * This method is like `_.zipObject` except that it supports property paths.\n *\n * @static\n * @memberOf _\n * @since 4.1.0\n * @category Array\n * @param {Array} [props=[]] The property identifiers.\n * @param {Array} [values=[]] The property values.\n * @returns {Object} Returns the new object.\n * @example\n *\n * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);\n * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }\n */\n function zipObjectDeep(props, values) {\n return baseZipObject(props || [], values || [], baseSet);\n }\n\n /**\n * This method is like `_.zip` except that it accepts `iteratee` to specify\n * how grouped values should be combined. The iteratee is invoked with the\n * elements of each group: (...group).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Array\n * @param {...Array} [arrays] The arrays to process.\n * @param {Function} [iteratee=_.identity] The function to combine\n * grouped values.\n * @returns {Array} Returns the new array of grouped elements.\n * @example\n *\n * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {\n * return a + b + c;\n * });\n * // => [111, 222]\n */\n var zipWith = baseRest(function(arrays) {\n var length = arrays.length,\n iteratee = length > 1 ? arrays[length - 1] : undefined;\n\n iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;\n return unzipWith(arrays, iteratee);\n });\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates a `lodash` wrapper instance that wraps `value` with explicit method\n * chain sequences enabled. The result of such sequences must be unwrapped\n * with `_#value`.\n *\n * @static\n * @memberOf _\n * @since 1.3.0\n * @category Seq\n * @param {*} value The value to wrap.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 40 },\n * { 'user': 'pebbles', 'age': 1 }\n * ];\n *\n * var youngest = _\n * .chain(users)\n * .sortBy('age')\n * .map(function(o) {\n * return o.user + ' is ' + o.age;\n * })\n * .head()\n * .value();\n * // => 'pebbles is 1'\n */\n function chain(value) {\n var result = lodash(value);\n result.__chain__ = true;\n return result;\n }\n\n /**\n * This method invokes `interceptor` and returns `value`. The interceptor\n * is invoked with one argument; (value). The purpose of this method is to\n * \"tap into\" a method chain sequence in order to modify intermediate results.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @param {*} value The value to provide to `interceptor`.\n * @param {Function} interceptor The function to invoke.\n * @returns {*} Returns `value`.\n * @example\n *\n * _([1, 2, 3])\n * .tap(function(array) {\n * // Mutate input array.\n * array.pop();\n * })\n * .reverse()\n * .value();\n * // => [2, 1]\n */\n function tap(value, interceptor) {\n interceptor(value);\n return value;\n }\n\n /**\n * This method is like `_.tap` except that it returns the result of `interceptor`.\n * The purpose of this method is to \"pass thru\" values replacing intermediate\n * results in a method chain sequence.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Seq\n * @param {*} value The value to provide to `interceptor`.\n * @param {Function} interceptor The function to invoke.\n * @returns {*} Returns the result of `interceptor`.\n * @example\n *\n * _(' abc ')\n * .chain()\n * .trim()\n * .thru(function(value) {\n * return [value];\n * })\n * .value();\n * // => ['abc']\n */\n function thru(value, interceptor) {\n return interceptor(value);\n }\n\n /**\n * This method is the wrapper version of `_.at`.\n *\n * @name at\n * @memberOf _\n * @since 1.0.0\n * @category Seq\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _(object).at(['a[0].b.c', 'a[1]']).value();\n * // => [3, 4]\n */\n var wrapperAt = flatRest(function(paths) {\n var length = paths.length,\n start = length ? paths[0] : 0,\n value = this.__wrapped__,\n interceptor = function(object) { return baseAt(object, paths); };\n\n if (length > 1 || this.__actions__.length ||\n !(value instanceof LazyWrapper) || !isIndex(start)) {\n return this.thru(interceptor);\n }\n value = value.slice(start, +start + (length ? 1 : 0));\n value.__actions__.push({\n 'func': thru,\n 'args': [interceptor],\n 'thisArg': undefined\n });\n return new LodashWrapper(value, this.__chain__).thru(function(array) {\n if (length && !array.length) {\n array.push(undefined);\n }\n return array;\n });\n });\n\n /**\n * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.\n *\n * @name chain\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 40 }\n * ];\n *\n * // A sequence without explicit chaining.\n * _(users).head();\n * // => { 'user': 'barney', 'age': 36 }\n *\n * // A sequence with explicit chaining.\n * _(users)\n * .chain()\n * .head()\n * .pick('user')\n * .value();\n * // => { 'user': 'barney' }\n */\n function wrapperChain() {\n return chain(this);\n }\n\n /**\n * Executes the chain sequence and returns the wrapped result.\n *\n * @name commit\n * @memberOf _\n * @since 3.2.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var array = [1, 2];\n * var wrapped = _(array).push(3);\n *\n * console.log(array);\n * // => [1, 2]\n *\n * wrapped = wrapped.commit();\n * console.log(array);\n * // => [1, 2, 3]\n *\n * wrapped.last();\n * // => 3\n *\n * console.log(array);\n * // => [1, 2, 3]\n */\n function wrapperCommit() {\n return new LodashWrapper(this.value(), this.__chain__);\n }\n\n /**\n * Gets the next value on a wrapped object following the\n * [iterator protocol](https://mdn.io/iteration_protocols#iterator).\n *\n * @name next\n * @memberOf _\n * @since 4.0.0\n * @category Seq\n * @returns {Object} Returns the next iterator value.\n * @example\n *\n * var wrapped = _([1, 2]);\n *\n * wrapped.next();\n * // => { 'done': false, 'value': 1 }\n *\n * wrapped.next();\n * // => { 'done': false, 'value': 2 }\n *\n * wrapped.next();\n * // => { 'done': true, 'value': undefined }\n */\n function wrapperNext() {\n if (this.__values__ === undefined) {\n this.__values__ = toArray(this.value());\n }\n var done = this.__index__ >= this.__values__.length,\n value = done ? undefined : this.__values__[this.__index__++];\n\n return { 'done': done, 'value': value };\n }\n\n /**\n * Enables the wrapper to be iterable.\n *\n * @name Symbol.iterator\n * @memberOf _\n * @since 4.0.0\n * @category Seq\n * @returns {Object} Returns the wrapper object.\n * @example\n *\n * var wrapped = _([1, 2]);\n *\n * wrapped[Symbol.iterator]() === wrapped;\n * // => true\n *\n * Array.from(wrapped);\n * // => [1, 2]\n */\n function wrapperToIterator() {\n return this;\n }\n\n /**\n * Creates a clone of the chain sequence planting `value` as the wrapped value.\n *\n * @name plant\n * @memberOf _\n * @since 3.2.0\n * @category Seq\n * @param {*} value The value to plant.\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var wrapped = _([1, 2]).map(square);\n * var other = wrapped.plant([3, 4]);\n *\n * other.value();\n * // => [9, 16]\n *\n * wrapped.value();\n * // => [1, 4]\n */\n function wrapperPlant(value) {\n var result,\n parent = this;\n\n while (parent instanceof baseLodash) {\n var clone = wrapperClone(parent);\n clone.__index__ = 0;\n clone.__values__ = undefined;\n if (result) {\n previous.__wrapped__ = clone;\n } else {\n result = clone;\n }\n var previous = clone;\n parent = parent.__wrapped__;\n }\n previous.__wrapped__ = value;\n return result;\n }\n\n /**\n * This method is the wrapper version of `_.reverse`.\n *\n * **Note:** This method mutates the wrapped array.\n *\n * @name reverse\n * @memberOf _\n * @since 0.1.0\n * @category Seq\n * @returns {Object} Returns the new `lodash` wrapper instance.\n * @example\n *\n * var array = [1, 2, 3];\n *\n * _(array).reverse().value()\n * // => [3, 2, 1]\n *\n * console.log(array);\n * // => [3, 2, 1]\n */\n function wrapperReverse() {\n var value = this.__wrapped__;\n if (value instanceof LazyWrapper) {\n var wrapped = value;\n if (this.__actions__.length) {\n wrapped = new LazyWrapper(this);\n }\n wrapped = wrapped.reverse();\n wrapped.__actions__.push({\n 'func': thru,\n 'args': [reverse],\n 'thisArg': undefined\n });\n return new LodashWrapper(wrapped, this.__chain__);\n }\n return this.thru(reverse);\n }\n\n /**\n * Executes the chain sequence to resolve the unwrapped value.\n *\n * @name value\n * @memberOf _\n * @since 0.1.0\n * @alias toJSON, valueOf\n * @category Seq\n * @returns {*} Returns the resolved unwrapped value.\n * @example\n *\n * _([1, 2, 3]).value();\n * // => [1, 2, 3]\n */\n function wrapperValue() {\n return baseWrapperValue(this.__wrapped__, this.__actions__);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The corresponding value of\n * each key is the number of times the key was returned by `iteratee`. The\n * iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * _.countBy([6.1, 4.2, 6.3], Math.floor);\n * // => { '4': 1, '6': 2 }\n *\n * // The `_.property` iteratee shorthand.\n * _.countBy(['one', 'two', 'three'], 'length');\n * // => { '3': 2, '5': 1 }\n */\n var countBy = createAggregator(function(result, value, key) {\n if (hasOwnProperty.call(result, key)) {\n ++result[key];\n } else {\n baseAssignValue(result, key, 1);\n }\n });\n\n /**\n * Checks if `predicate` returns truthy for **all** elements of `collection`.\n * Iteration is stopped once `predicate` returns falsey. The predicate is\n * invoked with three arguments: (value, index|key, collection).\n *\n * **Note:** This method returns `true` for\n * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because\n * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of\n * elements of empty collections.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {boolean} Returns `true` if all elements pass the predicate check,\n * else `false`.\n * @example\n *\n * _.every([true, 1, null, 'yes'], Boolean);\n * // => false\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': false }\n * ];\n *\n * // The `_.matches` iteratee shorthand.\n * _.every(users, { 'user': 'barney', 'active': false });\n * // => false\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.every(users, ['active', false]);\n * // => true\n *\n * // The `_.property` iteratee shorthand.\n * _.every(users, 'active');\n * // => false\n */\n function every(collection, predicate, guard) {\n var func = isArray(collection) ? arrayEvery : baseEvery;\n if (guard && isIterateeCall(collection, predicate, guard)) {\n predicate = undefined;\n }\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Iterates over elements of `collection`, returning an array of all elements\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * **Note:** Unlike `_.remove`, this method returns a new array.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n * @see _.reject\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false }\n * ];\n *\n * _.filter(users, function(o) { return !o.active; });\n * // => objects for ['fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.filter(users, { 'age': 36, 'active': true });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.filter(users, ['active', false]);\n * // => objects for ['fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.filter(users, 'active');\n * // => objects for ['barney']\n *\n * // Combining several predicates using `_.overEvery` or `_.overSome`.\n * _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]]));\n * // => objects for ['fred', 'barney']\n */\n function filter(collection, predicate) {\n var func = isArray(collection) ? arrayFilter : baseFilter;\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Iterates over elements of `collection`, returning the first element\n * `predicate` returns truthy for. The predicate is invoked with three\n * arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=0] The index to search from.\n * @returns {*} Returns the matched element, else `undefined`.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': true },\n * { 'user': 'fred', 'age': 40, 'active': false },\n * { 'user': 'pebbles', 'age': 1, 'active': true }\n * ];\n *\n * _.find(users, function(o) { return o.age < 40; });\n * // => object for 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.find(users, { 'age': 1, 'active': true });\n * // => object for 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.find(users, ['active', false]);\n * // => object for 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.find(users, 'active');\n * // => object for 'barney'\n */\n var find = createFind(findIndex);\n\n /**\n * This method is like `_.find` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param {number} [fromIndex=collection.length-1] The index to search from.\n * @returns {*} Returns the matched element, else `undefined`.\n * @example\n *\n * _.findLast([1, 2, 3, 4], function(n) {\n * return n % 2 == 1;\n * });\n * // => 3\n */\n var findLast = createFind(findLastIndex);\n\n /**\n * Creates a flattened array of values by running each element in `collection`\n * thru `iteratee` and flattening the mapped results. The iteratee is invoked\n * with three arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [n, n];\n * }\n *\n * _.flatMap([1, 2], duplicate);\n * // => [1, 1, 2, 2]\n */\n function flatMap(collection, iteratee) {\n return baseFlatten(map(collection, iteratee), 1);\n }\n\n /**\n * This method is like `_.flatMap` except that it recursively flattens the\n * mapped results.\n *\n * @static\n * @memberOf _\n * @since 4.7.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [[[n, n]]];\n * }\n *\n * _.flatMapDeep([1, 2], duplicate);\n * // => [1, 1, 2, 2]\n */\n function flatMapDeep(collection, iteratee) {\n return baseFlatten(map(collection, iteratee), INFINITY);\n }\n\n /**\n * This method is like `_.flatMap` except that it recursively flattens the\n * mapped results up to `depth` times.\n *\n * @static\n * @memberOf _\n * @since 4.7.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {number} [depth=1] The maximum recursion depth.\n * @returns {Array} Returns the new flattened array.\n * @example\n *\n * function duplicate(n) {\n * return [[[n, n]]];\n * }\n *\n * _.flatMapDepth([1, 2], duplicate, 2);\n * // => [[1, 1], [2, 2]]\n */\n function flatMapDepth(collection, iteratee, depth) {\n depth = depth === undefined ? 1 : toInteger(depth);\n return baseFlatten(map(collection, iteratee), depth);\n }\n\n /**\n * Iterates over elements of `collection` and invokes `iteratee` for each element.\n * The iteratee is invoked with three arguments: (value, index|key, collection).\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * **Note:** As with other \"Collections\" methods, objects with a \"length\"\n * property are iterated like arrays. To avoid this behavior use `_.forIn`\n * or `_.forOwn` for object iteration.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @alias each\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n * @see _.forEachRight\n * @example\n *\n * _.forEach([1, 2], function(value) {\n * console.log(value);\n * });\n * // => Logs `1` then `2`.\n *\n * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n */\n function forEach(collection, iteratee) {\n var func = isArray(collection) ? arrayEach : baseEach;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.forEach` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @alias eachRight\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array|Object} Returns `collection`.\n * @see _.forEach\n * @example\n *\n * _.forEachRight([1, 2], function(value) {\n * console.log(value);\n * });\n * // => Logs `2` then `1`.\n */\n function forEachRight(collection, iteratee) {\n var func = isArray(collection) ? arrayEachRight : baseEachRight;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The order of grouped values\n * is determined by the order they occur in `collection`. The corresponding\n * value of each key is an array of elements responsible for generating the\n * key. The iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * _.groupBy([6.1, 4.2, 6.3], Math.floor);\n * // => { '4': [4.2], '6': [6.1, 6.3] }\n *\n * // The `_.property` iteratee shorthand.\n * _.groupBy(['one', 'two', 'three'], 'length');\n * // => { '3': ['one', 'two'], '5': ['three'] }\n */\n var groupBy = createAggregator(function(result, value, key) {\n if (hasOwnProperty.call(result, key)) {\n result[key].push(value);\n } else {\n baseAssignValue(result, key, [value]);\n }\n });\n\n /**\n * Checks if `value` is in `collection`. If `collection` is a string, it's\n * checked for a substring of `value`, otherwise\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * is used for equality comparisons. If `fromIndex` is negative, it's used as\n * the offset from the end of `collection`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object|string} collection The collection to inspect.\n * @param {*} value The value to search for.\n * @param {number} [fromIndex=0] The index to search from.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n * @returns {boolean} Returns `true` if `value` is found, else `false`.\n * @example\n *\n * _.includes([1, 2, 3], 1);\n * // => true\n *\n * _.includes([1, 2, 3], 1, 2);\n * // => false\n *\n * _.includes({ 'a': 1, 'b': 2 }, 1);\n * // => true\n *\n * _.includes('abcd', 'bc');\n * // => true\n */\n function includes(collection, value, fromIndex, guard) {\n collection = isArrayLike(collection) ? collection : values(collection);\n fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;\n\n var length = collection.length;\n if (fromIndex < 0) {\n fromIndex = nativeMax(length + fromIndex, 0);\n }\n return isString(collection)\n ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)\n : (!!length && baseIndexOf(collection, value, fromIndex) > -1);\n }\n\n /**\n * Invokes the method at `path` of each element in `collection`, returning\n * an array of the results of each invoked method. Any additional arguments\n * are provided to each invoked method. If `path` is a function, it's invoked\n * for, and `this` bound to, each element in `collection`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Array|Function|string} path The path of the method to invoke or\n * the function invoked per iteration.\n * @param {...*} [args] The arguments to invoke each method with.\n * @returns {Array} Returns the array of results.\n * @example\n *\n * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');\n * // => [[1, 5, 7], [1, 2, 3]]\n *\n * _.invokeMap([123, 456], String.prototype.split, '');\n * // => [['1', '2', '3'], ['4', '5', '6']]\n */\n var invokeMap = baseRest(function(collection, path, args) {\n var index = -1,\n isFunc = typeof path == 'function',\n result = isArrayLike(collection) ? Array(collection.length) : [];\n\n baseEach(collection, function(value) {\n result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);\n });\n return result;\n });\n\n /**\n * Creates an object composed of keys generated from the results of running\n * each element of `collection` thru `iteratee`. The corresponding value of\n * each key is the last element responsible for generating the key. The\n * iteratee is invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The iteratee to transform keys.\n * @returns {Object} Returns the composed aggregate object.\n * @example\n *\n * var array = [\n * { 'dir': 'left', 'code': 97 },\n * { 'dir': 'right', 'code': 100 }\n * ];\n *\n * _.keyBy(array, function(o) {\n * return String.fromCharCode(o.code);\n * });\n * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }\n *\n * _.keyBy(array, 'dir');\n * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }\n */\n var keyBy = createAggregator(function(result, value, key) {\n baseAssignValue(result, key, value);\n });\n\n /**\n * Creates an array of values by running each element in `collection` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, index|key, collection).\n *\n * Many lodash methods are guarded to work as iteratees for methods like\n * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.\n *\n * The guarded methods are:\n * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,\n * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,\n * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,\n * `template`, `trim`, `trimEnd`, `trimStart`, and `words`\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new mapped array.\n * @example\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * _.map([4, 8], square);\n * // => [16, 64]\n *\n * _.map({ 'a': 4, 'b': 8 }, square);\n * // => [16, 64] (iteration order is not guaranteed)\n *\n * var users = [\n * { 'user': 'barney' },\n * { 'user': 'fred' }\n * ];\n *\n * // The `_.property` iteratee shorthand.\n * _.map(users, 'user');\n * // => ['barney', 'fred']\n */\n function map(collection, iteratee) {\n var func = isArray(collection) ? arrayMap : baseMap;\n return func(collection, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.sortBy` except that it allows specifying the sort\n * orders of the iteratees to sort by. If `orders` is unspecified, all values\n * are sorted in ascending order. Otherwise, specify an order of \"desc\" for\n * descending or \"asc\" for ascending sort order of corresponding values.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]\n * The iteratees to sort by.\n * @param {string[]} [orders] The sort orders of `iteratees`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.\n * @returns {Array} Returns the new sorted array.\n * @example\n *\n * var users = [\n * { 'user': 'fred', 'age': 48 },\n * { 'user': 'barney', 'age': 34 },\n * { 'user': 'fred', 'age': 40 },\n * { 'user': 'barney', 'age': 36 }\n * ];\n *\n * // Sort by `user` in ascending order and by `age` in descending order.\n * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);\n * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]\n */\n function orderBy(collection, iteratees, orders, guard) {\n if (collection == null) {\n return [];\n }\n if (!isArray(iteratees)) {\n iteratees = iteratees == null ? [] : [iteratees];\n }\n orders = guard ? undefined : orders;\n if (!isArray(orders)) {\n orders = orders == null ? [] : [orders];\n }\n return baseOrderBy(collection, iteratees, orders);\n }\n\n /**\n * Creates an array of elements split into two groups, the first of which\n * contains elements `predicate` returns truthy for, the second of which\n * contains elements `predicate` returns falsey for. The predicate is\n * invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the array of grouped elements.\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': true },\n * { 'user': 'pebbles', 'age': 1, 'active': false }\n * ];\n *\n * _.partition(users, function(o) { return o.active; });\n * // => objects for [['fred'], ['barney', 'pebbles']]\n *\n * // The `_.matches` iteratee shorthand.\n * _.partition(users, { 'age': 1, 'active': false });\n * // => objects for [['pebbles'], ['barney', 'fred']]\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.partition(users, ['active', false]);\n * // => objects for [['barney', 'pebbles'], ['fred']]\n *\n * // The `_.property` iteratee shorthand.\n * _.partition(users, 'active');\n * // => objects for [['fred'], ['barney', 'pebbles']]\n */\n var partition = createAggregator(function(result, value, key) {\n result[key ? 0 : 1].push(value);\n }, function() { return [[], []]; });\n\n /**\n * Reduces `collection` to a value which is the accumulated result of running\n * each element in `collection` thru `iteratee`, where each successive\n * invocation is supplied the return value of the previous. If `accumulator`\n * is not given, the first element of `collection` is used as the initial\n * value. The iteratee is invoked with four arguments:\n * (accumulator, value, index|key, collection).\n *\n * Many lodash methods are guarded to work as iteratees for methods like\n * `_.reduce`, `_.reduceRight`, and `_.transform`.\n *\n * The guarded methods are:\n * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,\n * and `sortBy`\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @returns {*} Returns the accumulated value.\n * @see _.reduceRight\n * @example\n *\n * _.reduce([1, 2], function(sum, n) {\n * return sum + n;\n * }, 0);\n * // => 3\n *\n * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * return result;\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)\n */\n function reduce(collection, iteratee, accumulator) {\n var func = isArray(collection) ? arrayReduce : baseReduce,\n initAccum = arguments.length < 3;\n\n return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);\n }\n\n /**\n * This method is like `_.reduce` except that it iterates over elements of\n * `collection` from right to left.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The initial value.\n * @returns {*} Returns the accumulated value.\n * @see _.reduce\n * @example\n *\n * var array = [[0, 1], [2, 3], [4, 5]];\n *\n * _.reduceRight(array, function(flattened, other) {\n * return flattened.concat(other);\n * }, []);\n * // => [4, 5, 2, 3, 0, 1]\n */\n function reduceRight(collection, iteratee, accumulator) {\n var func = isArray(collection) ? arrayReduceRight : baseReduce,\n initAccum = arguments.length < 3;\n\n return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);\n }\n\n /**\n * The opposite of `_.filter`; this method returns the elements of `collection`\n * that `predicate` does **not** return truthy for.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {Array} Returns the new filtered array.\n * @see _.filter\n * @example\n *\n * var users = [\n * { 'user': 'barney', 'age': 36, 'active': false },\n * { 'user': 'fred', 'age': 40, 'active': true }\n * ];\n *\n * _.reject(users, function(o) { return !o.active; });\n * // => objects for ['fred']\n *\n * // The `_.matches` iteratee shorthand.\n * _.reject(users, { 'age': 40, 'active': true });\n * // => objects for ['barney']\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.reject(users, ['active', false]);\n * // => objects for ['fred']\n *\n * // The `_.property` iteratee shorthand.\n * _.reject(users, 'active');\n * // => objects for ['barney']\n */\n function reject(collection, predicate) {\n var func = isArray(collection) ? arrayFilter : baseFilter;\n return func(collection, negate(getIteratee(predicate, 3)));\n }\n\n /**\n * Gets a random element from `collection`.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to sample.\n * @returns {*} Returns the random element.\n * @example\n *\n * _.sample([1, 2, 3, 4]);\n * // => 2\n */\n function sample(collection) {\n var func = isArray(collection) ? arraySample : baseSample;\n return func(collection);\n }\n\n /**\n * Gets `n` random elements at unique keys from `collection` up to the\n * size of `collection`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Collection\n * @param {Array|Object} collection The collection to sample.\n * @param {number} [n=1] The number of elements to sample.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Array} Returns the random elements.\n * @example\n *\n * _.sampleSize([1, 2, 3], 2);\n * // => [3, 1]\n *\n * _.sampleSize([1, 2, 3], 4);\n * // => [2, 3, 1]\n */\n function sampleSize(collection, n, guard) {\n if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {\n n = 1;\n } else {\n n = toInteger(n);\n }\n var func = isArray(collection) ? arraySampleSize : baseSampleSize;\n return func(collection, n);\n }\n\n /**\n * Creates an array of shuffled values, using a version of the\n * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to shuffle.\n * @returns {Array} Returns the new shuffled array.\n * @example\n *\n * _.shuffle([1, 2, 3, 4]);\n * // => [4, 1, 3, 2]\n */\n function shuffle(collection) {\n var func = isArray(collection) ? arrayShuffle : baseShuffle;\n return func(collection);\n }\n\n /**\n * Gets the size of `collection` by returning its length for array-like\n * values or the number of own enumerable string keyed properties for objects.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object|string} collection The collection to inspect.\n * @returns {number} Returns the collection size.\n * @example\n *\n * _.size([1, 2, 3]);\n * // => 3\n *\n * _.size({ 'a': 1, 'b': 2 });\n * // => 2\n *\n * _.size('pebbles');\n * // => 7\n */\n function size(collection) {\n if (collection == null) {\n return 0;\n }\n if (isArrayLike(collection)) {\n return isString(collection) ? stringSize(collection) : collection.length;\n }\n var tag = getTag(collection);\n if (tag == mapTag || tag == setTag) {\n return collection.size;\n }\n return baseKeys(collection).length;\n }\n\n /**\n * Checks if `predicate` returns truthy for **any** element of `collection`.\n * Iteration is stopped once `predicate` returns truthy. The predicate is\n * invoked with three arguments: (value, index|key, collection).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {boolean} Returns `true` if any element passes the predicate check,\n * else `false`.\n * @example\n *\n * _.some([null, 0, 'yes', false], Boolean);\n * // => true\n *\n * var users = [\n * { 'user': 'barney', 'active': true },\n * { 'user': 'fred', 'active': false }\n * ];\n *\n * // The `_.matches` iteratee shorthand.\n * _.some(users, { 'user': 'barney', 'active': false });\n * // => false\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.some(users, ['active', false]);\n * // => true\n *\n * // The `_.property` iteratee shorthand.\n * _.some(users, 'active');\n * // => true\n */\n function some(collection, predicate, guard) {\n var func = isArray(collection) ? arraySome : baseSome;\n if (guard && isIterateeCall(collection, predicate, guard)) {\n predicate = undefined;\n }\n return func(collection, getIteratee(predicate, 3));\n }\n\n /**\n * Creates an array of elements, sorted in ascending order by the results of\n * running each element in a collection thru each iteratee. This method\n * performs a stable sort, that is, it preserves the original sort order of\n * equal elements. The iteratees are invoked with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Collection\n * @param {Array|Object} collection The collection to iterate over.\n * @param {...(Function|Function[])} [iteratees=[_.identity]]\n * The iteratees to sort by.\n * @returns {Array} Returns the new sorted array.\n * @example\n *\n * var users = [\n * { 'user': 'fred', 'age': 48 },\n * { 'user': 'barney', 'age': 36 },\n * { 'user': 'fred', 'age': 30 },\n * { 'user': 'barney', 'age': 34 }\n * ];\n *\n * _.sortBy(users, [function(o) { return o.user; }]);\n * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 30]]\n *\n * _.sortBy(users, ['user', 'age']);\n * // => objects for [['barney', 34], ['barney', 36], ['fred', 30], ['fred', 48]]\n */\n var sortBy = baseRest(function(collection, iteratees) {\n if (collection == null) {\n return [];\n }\n var length = iteratees.length;\n if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {\n iteratees = [];\n } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {\n iteratees = [iteratees[0]];\n }\n return baseOrderBy(collection, baseFlatten(iteratees, 1), []);\n });\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Gets the timestamp of the number of milliseconds that have elapsed since\n * the Unix epoch (1 January 1970 00:00:00 UTC).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Date\n * @returns {number} Returns the timestamp.\n * @example\n *\n * _.defer(function(stamp) {\n * console.log(_.now() - stamp);\n * }, _.now());\n * // => Logs the number of milliseconds it took for the deferred invocation.\n */\n var now = ctxNow || function() {\n return root.Date.now();\n };\n\n /*------------------------------------------------------------------------*/\n\n /**\n * The opposite of `_.before`; this method creates a function that invokes\n * `func` once it's called `n` or more times.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {number} n The number of calls before `func` is invoked.\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * var saves = ['profile', 'settings'];\n *\n * var done = _.after(saves.length, function() {\n * console.log('done saving!');\n * });\n *\n * _.forEach(saves, function(type) {\n * asyncSave({ 'type': type, 'complete': done });\n * });\n * // => Logs 'done saving!' after the two async saves have completed.\n */\n function after(n, func) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n n = toInteger(n);\n return function() {\n if (--n < 1) {\n return func.apply(this, arguments);\n }\n };\n }\n\n /**\n * Creates a function that invokes `func`, with up to `n` arguments,\n * ignoring any additional arguments.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to cap arguments for.\n * @param {number} [n=func.length] The arity cap.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new capped function.\n * @example\n *\n * _.map(['6', '8', '10'], _.ary(parseInt, 1));\n * // => [6, 8, 10]\n */\n function ary(func, n, guard) {\n n = guard ? undefined : n;\n n = (func && n == null) ? func.length : n;\n return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);\n }\n\n /**\n * Creates a function that invokes `func`, with the `this` binding and arguments\n * of the created function, while it's called less than `n` times. Subsequent\n * calls to the created function return the result of the last `func` invocation.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {number} n The number of calls at which `func` is no longer invoked.\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * jQuery(element).on('click', _.before(5, addContactToList));\n * // => Allows adding up to 4 contacts to the list.\n */\n function before(n, func) {\n var result;\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n n = toInteger(n);\n return function() {\n if (--n > 0) {\n result = func.apply(this, arguments);\n }\n if (n <= 1) {\n func = undefined;\n }\n return result;\n };\n }\n\n /**\n * Creates a function that invokes `func` with the `this` binding of `thisArg`\n * and `partials` prepended to the arguments it receives.\n *\n * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,\n * may be used as a placeholder for partially applied arguments.\n *\n * **Note:** Unlike native `Function#bind`, this method doesn't set the \"length\"\n * property of bound functions.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to bind.\n * @param {*} thisArg The `this` binding of `func`.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new bound function.\n * @example\n *\n * function greet(greeting, punctuation) {\n * return greeting + ' ' + this.user + punctuation;\n * }\n *\n * var object = { 'user': 'fred' };\n *\n * var bound = _.bind(greet, object, 'hi');\n * bound('!');\n * // => 'hi fred!'\n *\n * // Bound with placeholders.\n * var bound = _.bind(greet, object, _, '!');\n * bound('hi');\n * // => 'hi fred!'\n */\n var bind = baseRest(function(func, thisArg, partials) {\n var bitmask = WRAP_BIND_FLAG;\n if (partials.length) {\n var holders = replaceHolders(partials, getHolder(bind));\n bitmask |= WRAP_PARTIAL_FLAG;\n }\n return createWrap(func, bitmask, thisArg, partials, holders);\n });\n\n /**\n * Creates a function that invokes the method at `object[key]` with `partials`\n * prepended to the arguments it receives.\n *\n * This method differs from `_.bind` by allowing bound functions to reference\n * methods that may be redefined or don't yet exist. See\n * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)\n * for more details.\n *\n * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Function\n * @param {Object} object The object to invoke the method on.\n * @param {string} key The key of the method.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new bound function.\n * @example\n *\n * var object = {\n * 'user': 'fred',\n * 'greet': function(greeting, punctuation) {\n * return greeting + ' ' + this.user + punctuation;\n * }\n * };\n *\n * var bound = _.bindKey(object, 'greet', 'hi');\n * bound('!');\n * // => 'hi fred!'\n *\n * object.greet = function(greeting, punctuation) {\n * return greeting + 'ya ' + this.user + punctuation;\n * };\n *\n * bound('!');\n * // => 'hiya fred!'\n *\n * // Bound with placeholders.\n * var bound = _.bindKey(object, 'greet', _, '!');\n * bound('hi');\n * // => 'hiya fred!'\n */\n var bindKey = baseRest(function(object, key, partials) {\n var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;\n if (partials.length) {\n var holders = replaceHolders(partials, getHolder(bindKey));\n bitmask |= WRAP_PARTIAL_FLAG;\n }\n return createWrap(key, bitmask, object, partials, holders);\n });\n\n /**\n * Creates a function that accepts arguments of `func` and either invokes\n * `func` returning its result, if at least `arity` number of arguments have\n * been provided, or returns a function that accepts the remaining `func`\n * arguments, and so on. The arity of `func` may be specified if `func.length`\n * is not sufficient.\n *\n * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,\n * may be used as a placeholder for provided arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of curried functions.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Function\n * @param {Function} func The function to curry.\n * @param {number} [arity=func.length] The arity of `func`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new curried function.\n * @example\n *\n * var abc = function(a, b, c) {\n * return [a, b, c];\n * };\n *\n * var curried = _.curry(abc);\n *\n * curried(1)(2)(3);\n * // => [1, 2, 3]\n *\n * curried(1, 2)(3);\n * // => [1, 2, 3]\n *\n * curried(1, 2, 3);\n * // => [1, 2, 3]\n *\n * // Curried with placeholders.\n * curried(1)(_, 3)(2);\n * // => [1, 2, 3]\n */\n function curry(func, arity, guard) {\n arity = guard ? undefined : arity;\n var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n result.placeholder = curry.placeholder;\n return result;\n }\n\n /**\n * This method is like `_.curry` except that arguments are applied to `func`\n * in the manner of `_.partialRight` instead of `_.partial`.\n *\n * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for provided arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of curried functions.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to curry.\n * @param {number} [arity=func.length] The arity of `func`.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the new curried function.\n * @example\n *\n * var abc = function(a, b, c) {\n * return [a, b, c];\n * };\n *\n * var curried = _.curryRight(abc);\n *\n * curried(3)(2)(1);\n * // => [1, 2, 3]\n *\n * curried(2, 3)(1);\n * // => [1, 2, 3]\n *\n * curried(1, 2, 3);\n * // => [1, 2, 3]\n *\n * // Curried with placeholders.\n * curried(3)(1, _)(2);\n * // => [1, 2, 3]\n */\n function curryRight(func, arity, guard) {\n arity = guard ? undefined : arity;\n var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);\n result.placeholder = curryRight.placeholder;\n return result;\n }\n\n /**\n * Creates a debounced function that delays invoking `func` until after `wait`\n * milliseconds have elapsed since the last time the debounced function was\n * invoked. The debounced function comes with a `cancel` method to cancel\n * delayed `func` invocations and a `flush` method to immediately invoke them.\n * Provide `options` to indicate whether `func` should be invoked on the\n * leading and/or trailing edge of the `wait` timeout. The `func` is invoked\n * with the last arguments provided to the debounced function. Subsequent\n * calls to the debounced function return the result of the last `func`\n * invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the debounced function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.debounce` and `_.throttle`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to debounce.\n * @param {number} [wait=0] The number of milliseconds to delay.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=false]\n * Specify invoking on the leading edge of the timeout.\n * @param {number} [options.maxWait]\n * The maximum time `func` is allowed to be delayed before it's invoked.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new debounced function.\n * @example\n *\n * // Avoid costly calculations while the window size is in flux.\n * jQuery(window).on('resize', _.debounce(calculateLayout, 150));\n *\n * // Invoke `sendMail` when clicked, debouncing subsequent calls.\n * jQuery(element).on('click', _.debounce(sendMail, 300, {\n * 'leading': true,\n * 'trailing': false\n * }));\n *\n * // Ensure `batchLog` is invoked once after 1 second of debounced calls.\n * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });\n * var source = new EventSource('/stream');\n * jQuery(source).on('message', debounced);\n *\n * // Cancel the trailing debounced invocation.\n * jQuery(window).on('popstate', debounced.cancel);\n */\n function debounce(func, wait, options) {\n var lastArgs,\n lastThis,\n maxWait,\n result,\n timerId,\n lastCallTime,\n lastInvokeTime = 0,\n leading = false,\n maxing = false,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n wait = toNumber(wait) || 0;\n if (isObject(options)) {\n leading = !!options.leading;\n maxing = 'maxWait' in options;\n maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n\n function invokeFunc(time) {\n var args = lastArgs,\n thisArg = lastThis;\n\n lastArgs = lastThis = undefined;\n lastInvokeTime = time;\n result = func.apply(thisArg, args);\n return result;\n }\n\n function leadingEdge(time) {\n // Reset any `maxWait` timer.\n lastInvokeTime = time;\n // Start the timer for the trailing edge.\n timerId = setTimeout(timerExpired, wait);\n // Invoke the leading edge.\n return leading ? invokeFunc(time) : result;\n }\n\n function remainingWait(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime,\n timeWaiting = wait - timeSinceLastCall;\n\n return maxing\n ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)\n : timeWaiting;\n }\n\n function shouldInvoke(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime;\n\n // Either this is the first call, activity has stopped and we're at the\n // trailing edge, the system time has gone backwards and we're treating\n // it as the trailing edge, or we've hit the `maxWait` limit.\n return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||\n (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));\n }\n\n function timerExpired() {\n var time = now();\n if (shouldInvoke(time)) {\n return trailingEdge(time);\n }\n // Restart the timer.\n timerId = setTimeout(timerExpired, remainingWait(time));\n }\n\n function trailingEdge(time) {\n timerId = undefined;\n\n // Only invoke if we have `lastArgs` which means `func` has been\n // debounced at least once.\n if (trailing && lastArgs) {\n return invokeFunc(time);\n }\n lastArgs = lastThis = undefined;\n return result;\n }\n\n function cancel() {\n if (timerId !== undefined) {\n clearTimeout(timerId);\n }\n lastInvokeTime = 0;\n lastArgs = lastCallTime = lastThis = timerId = undefined;\n }\n\n function flush() {\n return timerId === undefined ? result : trailingEdge(now());\n }\n\n function debounced() {\n var time = now(),\n isInvoking = shouldInvoke(time);\n\n lastArgs = arguments;\n lastThis = this;\n lastCallTime = time;\n\n if (isInvoking) {\n if (timerId === undefined) {\n return leadingEdge(lastCallTime);\n }\n if (maxing) {\n // Handle invocations in a tight loop.\n clearTimeout(timerId);\n timerId = setTimeout(timerExpired, wait);\n return invokeFunc(lastCallTime);\n }\n }\n if (timerId === undefined) {\n timerId = setTimeout(timerExpired, wait);\n }\n return result;\n }\n debounced.cancel = cancel;\n debounced.flush = flush;\n return debounced;\n }\n\n /**\n * Defers invoking the `func` until the current call stack has cleared. Any\n * additional arguments are provided to `func` when it's invoked.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to defer.\n * @param {...*} [args] The arguments to invoke `func` with.\n * @returns {number} Returns the timer id.\n * @example\n *\n * _.defer(function(text) {\n * console.log(text);\n * }, 'deferred');\n * // => Logs 'deferred' after one millisecond.\n */\n var defer = baseRest(function(func, args) {\n return baseDelay(func, 1, args);\n });\n\n /**\n * Invokes `func` after `wait` milliseconds. Any additional arguments are\n * provided to `func` when it's invoked.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to delay.\n * @param {number} wait The number of milliseconds to delay invocation.\n * @param {...*} [args] The arguments to invoke `func` with.\n * @returns {number} Returns the timer id.\n * @example\n *\n * _.delay(function(text) {\n * console.log(text);\n * }, 1000, 'later');\n * // => Logs 'later' after one second.\n */\n var delay = baseRest(function(func, wait, args) {\n return baseDelay(func, toNumber(wait) || 0, args);\n });\n\n /**\n * Creates a function that invokes `func` with arguments reversed.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to flip arguments for.\n * @returns {Function} Returns the new flipped function.\n * @example\n *\n * var flipped = _.flip(function() {\n * return _.toArray(arguments);\n * });\n *\n * flipped('a', 'b', 'c', 'd');\n * // => ['d', 'c', 'b', 'a']\n */\n function flip(func) {\n return createWrap(func, WRAP_FLIP_FLAG);\n }\n\n /**\n * Creates a function that memoizes the result of `func`. If `resolver` is\n * provided, it determines the cache key for storing the result based on the\n * arguments provided to the memoized function. By default, the first argument\n * provided to the memoized function is used as the map cache key. The `func`\n * is invoked with the `this` binding of the memoized function.\n *\n * **Note:** The cache is exposed as the `cache` property on the memoized\n * function. Its creation may be customized by replacing the `_.memoize.Cache`\n * constructor with one whose instances implement the\n * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)\n * method interface of `clear`, `delete`, `get`, `has`, and `set`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to have its output memoized.\n * @param {Function} [resolver] The function to resolve the cache key.\n * @returns {Function} Returns the new memoized function.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n * var other = { 'c': 3, 'd': 4 };\n *\n * var values = _.memoize(_.values);\n * values(object);\n * // => [1, 2]\n *\n * values(other);\n * // => [3, 4]\n *\n * object.a = 2;\n * values(object);\n * // => [1, 2]\n *\n * // Modify the result cache.\n * values.cache.set(object, ['a', 'b']);\n * values(object);\n * // => ['a', 'b']\n *\n * // Replace `_.memoize.Cache`.\n * _.memoize.Cache = WeakMap;\n */\n function memoize(func, resolver) {\n if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n var memoized = function() {\n var args = arguments,\n key = resolver ? resolver.apply(this, args) : args[0],\n cache = memoized.cache;\n\n if (cache.has(key)) {\n return cache.get(key);\n }\n var result = func.apply(this, args);\n memoized.cache = cache.set(key, result) || cache;\n return result;\n };\n memoized.cache = new (memoize.Cache || MapCache);\n return memoized;\n }\n\n // Expose `MapCache`.\n memoize.Cache = MapCache;\n\n /**\n * Creates a function that negates the result of the predicate `func`. The\n * `func` predicate is invoked with the `this` binding and arguments of the\n * created function.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} predicate The predicate to negate.\n * @returns {Function} Returns the new negated function.\n * @example\n *\n * function isEven(n) {\n * return n % 2 == 0;\n * }\n *\n * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));\n * // => [1, 3, 5]\n */\n function negate(predicate) {\n if (typeof predicate != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n return function() {\n var args = arguments;\n switch (args.length) {\n case 0: return !predicate.call(this);\n case 1: return !predicate.call(this, args[0]);\n case 2: return !predicate.call(this, args[0], args[1]);\n case 3: return !predicate.call(this, args[0], args[1], args[2]);\n }\n return !predicate.apply(this, args);\n };\n }\n\n /**\n * Creates a function that is restricted to invoking `func` once. Repeat calls\n * to the function return the value of the first invocation. The `func` is\n * invoked with the `this` binding and arguments of the created function.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to restrict.\n * @returns {Function} Returns the new restricted function.\n * @example\n *\n * var initialize = _.once(createApplication);\n * initialize();\n * initialize();\n * // => `createApplication` is invoked once\n */\n function once(func) {\n return before(2, func);\n }\n\n /**\n * Creates a function that invokes `func` with its arguments transformed.\n *\n * @static\n * @since 4.0.0\n * @memberOf _\n * @category Function\n * @param {Function} func The function to wrap.\n * @param {...(Function|Function[])} [transforms=[_.identity]]\n * The argument transforms.\n * @returns {Function} Returns the new function.\n * @example\n *\n * function doubled(n) {\n * return n * 2;\n * }\n *\n * function square(n) {\n * return n * n;\n * }\n *\n * var func = _.overArgs(function(x, y) {\n * return [x, y];\n * }, [square, doubled]);\n *\n * func(9, 3);\n * // => [81, 6]\n *\n * func(10, 5);\n * // => [100, 10]\n */\n var overArgs = castRest(function(func, transforms) {\n transforms = (transforms.length == 1 && isArray(transforms[0]))\n ? arrayMap(transforms[0], baseUnary(getIteratee()))\n : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));\n\n var funcsLength = transforms.length;\n return baseRest(function(args) {\n var index = -1,\n length = nativeMin(args.length, funcsLength);\n\n while (++index < length) {\n args[index] = transforms[index].call(this, args[index]);\n }\n return apply(func, this, args);\n });\n });\n\n /**\n * Creates a function that invokes `func` with `partials` prepended to the\n * arguments it receives. This method is like `_.bind` except it does **not**\n * alter the `this` binding.\n *\n * The `_.partial.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of partially\n * applied functions.\n *\n * @static\n * @memberOf _\n * @since 0.2.0\n * @category Function\n * @param {Function} func The function to partially apply arguments to.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new partially applied function.\n * @example\n *\n * function greet(greeting, name) {\n * return greeting + ' ' + name;\n * }\n *\n * var sayHelloTo = _.partial(greet, 'hello');\n * sayHelloTo('fred');\n * // => 'hello fred'\n *\n * // Partially applied with placeholders.\n * var greetFred = _.partial(greet, _, 'fred');\n * greetFred('hi');\n * // => 'hi fred'\n */\n var partial = baseRest(function(func, partials) {\n var holders = replaceHolders(partials, getHolder(partial));\n return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);\n });\n\n /**\n * This method is like `_.partial` except that partially applied arguments\n * are appended to the arguments it receives.\n *\n * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic\n * builds, may be used as a placeholder for partially applied arguments.\n *\n * **Note:** This method doesn't set the \"length\" property of partially\n * applied functions.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Function\n * @param {Function} func The function to partially apply arguments to.\n * @param {...*} [partials] The arguments to be partially applied.\n * @returns {Function} Returns the new partially applied function.\n * @example\n *\n * function greet(greeting, name) {\n * return greeting + ' ' + name;\n * }\n *\n * var greetFred = _.partialRight(greet, 'fred');\n * greetFred('hi');\n * // => 'hi fred'\n *\n * // Partially applied with placeholders.\n * var sayHelloTo = _.partialRight(greet, 'hello', _);\n * sayHelloTo('fred');\n * // => 'hello fred'\n */\n var partialRight = baseRest(function(func, partials) {\n var holders = replaceHolders(partials, getHolder(partialRight));\n return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);\n });\n\n /**\n * Creates a function that invokes `func` with arguments arranged according\n * to the specified `indexes` where the argument value at the first index is\n * provided as the first argument, the argument value at the second index is\n * provided as the second argument, and so on.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Function\n * @param {Function} func The function to rearrange arguments for.\n * @param {...(number|number[])} indexes The arranged argument indexes.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var rearged = _.rearg(function(a, b, c) {\n * return [a, b, c];\n * }, [2, 0, 1]);\n *\n * rearged('b', 'c', 'a')\n * // => ['a', 'b', 'c']\n */\n var rearg = flatRest(function(func, indexes) {\n return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);\n });\n\n /**\n * Creates a function that invokes `func` with the `this` binding of the\n * created function and arguments from `start` and beyond provided as\n * an array.\n *\n * **Note:** This method is based on the\n * [rest parameter](https://mdn.io/rest_parameters).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to apply a rest parameter to.\n * @param {number} [start=func.length-1] The start position of the rest parameter.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.rest(function(what, names) {\n * return what + ' ' + _.initial(names).join(', ') +\n * (_.size(names) > 1 ? ', & ' : '') + _.last(names);\n * });\n *\n * say('hello', 'fred', 'barney', 'pebbles');\n * // => 'hello fred, barney, & pebbles'\n */\n function rest(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = start === undefined ? start : toInteger(start);\n return baseRest(func, start);\n }\n\n /**\n * Creates a function that invokes `func` with the `this` binding of the\n * create function and an array of arguments much like\n * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).\n *\n * **Note:** This method is based on the\n * [spread operator](https://mdn.io/spread_operator).\n *\n * @static\n * @memberOf _\n * @since 3.2.0\n * @category Function\n * @param {Function} func The function to spread arguments over.\n * @param {number} [start=0] The start position of the spread.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var say = _.spread(function(who, what) {\n * return who + ' says ' + what;\n * });\n *\n * say(['fred', 'hello']);\n * // => 'fred says hello'\n *\n * var numbers = Promise.all([\n * Promise.resolve(40),\n * Promise.resolve(36)\n * ]);\n *\n * numbers.then(_.spread(function(x, y) {\n * return x + y;\n * }));\n * // => a Promise of 76\n */\n function spread(func, start) {\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n start = start == null ? 0 : nativeMax(toInteger(start), 0);\n return baseRest(function(args) {\n var array = args[start],\n otherArgs = castSlice(args, 0, start);\n\n if (array) {\n arrayPush(otherArgs, array);\n }\n return apply(func, this, otherArgs);\n });\n }\n\n /**\n * Creates a throttled function that only invokes `func` at most once per\n * every `wait` milliseconds. The throttled function comes with a `cancel`\n * method to cancel delayed `func` invocations and a `flush` method to\n * immediately invoke them. Provide `options` to indicate whether `func`\n * should be invoked on the leading and/or trailing edge of the `wait`\n * timeout. The `func` is invoked with the last arguments provided to the\n * throttled function. Subsequent calls to the throttled function return the\n * result of the last `func` invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the throttled function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.throttle` and `_.debounce`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to throttle.\n * @param {number} [wait=0] The number of milliseconds to throttle invocations to.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=true]\n * Specify invoking on the leading edge of the timeout.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new throttled function.\n * @example\n *\n * // Avoid excessively updating the position while scrolling.\n * jQuery(window).on('scroll', _.throttle(updatePosition, 100));\n *\n * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.\n * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });\n * jQuery(element).on('click', throttled);\n *\n * // Cancel the trailing throttled invocation.\n * jQuery(window).on('popstate', throttled.cancel);\n */\n function throttle(func, wait, options) {\n var leading = true,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n if (isObject(options)) {\n leading = 'leading' in options ? !!options.leading : leading;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n return debounce(func, wait, {\n 'leading': leading,\n 'maxWait': wait,\n 'trailing': trailing\n });\n }\n\n /**\n * Creates a function that accepts up to one argument, ignoring any\n * additional arguments.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Function\n * @param {Function} func The function to cap arguments for.\n * @returns {Function} Returns the new capped function.\n * @example\n *\n * _.map(['6', '8', '10'], _.unary(parseInt));\n * // => [6, 8, 10]\n */\n function unary(func) {\n return ary(func, 1);\n }\n\n /**\n * Creates a function that provides `value` to `wrapper` as its first\n * argument. Any additional arguments provided to the function are appended\n * to those provided to the `wrapper`. The wrapper is invoked with the `this`\n * binding of the created function.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {*} value The value to wrap.\n * @param {Function} [wrapper=identity] The wrapper function.\n * @returns {Function} Returns the new function.\n * @example\n *\n * var p = _.wrap(_.escape, function(func, text) {\n * return '' + func(text) + '
';\n * });\n *\n * p('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles
'\n */\n function wrap(value, wrapper) {\n return partial(castFunction(wrapper), value);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Casts `value` as an array if it's not one.\n *\n * @static\n * @memberOf _\n * @since 4.4.0\n * @category Lang\n * @param {*} value The value to inspect.\n * @returns {Array} Returns the cast array.\n * @example\n *\n * _.castArray(1);\n * // => [1]\n *\n * _.castArray({ 'a': 1 });\n * // => [{ 'a': 1 }]\n *\n * _.castArray('abc');\n * // => ['abc']\n *\n * _.castArray(null);\n * // => [null]\n *\n * _.castArray(undefined);\n * // => [undefined]\n *\n * _.castArray();\n * // => []\n *\n * var array = [1, 2, 3];\n * console.log(_.castArray(array) === array);\n * // => true\n */\n function castArray() {\n if (!arguments.length) {\n return [];\n }\n var value = arguments[0];\n return isArray(value) ? value : [value];\n }\n\n /**\n * Creates a shallow clone of `value`.\n *\n * **Note:** This method is loosely based on the\n * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)\n * and supports cloning arrays, array buffers, booleans, date objects, maps,\n * numbers, `Object` objects, regexes, sets, strings, symbols, and typed\n * arrays. The own enumerable properties of `arguments` objects are cloned\n * as plain objects. An empty object is returned for uncloneable values such\n * as error objects, functions, DOM nodes, and WeakMaps.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to clone.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeep\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var shallow = _.clone(objects);\n * console.log(shallow[0] === objects[0]);\n * // => true\n */\n function clone(value) {\n return baseClone(value, CLONE_SYMBOLS_FLAG);\n }\n\n /**\n * This method is like `_.clone` except that it accepts `customizer` which\n * is invoked to produce the cloned value. If `customizer` returns `undefined`,\n * cloning is handled by the method instead. The `customizer` is invoked with\n * up to four arguments; (value [, index|key, object, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the cloned value.\n * @see _.cloneDeepWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(false);\n * }\n * }\n *\n * var el = _.cloneWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 0\n */\n function cloneWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);\n }\n\n /**\n * This method is like `_.clone` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @returns {*} Returns the deep cloned value.\n * @see _.clone\n * @example\n *\n * var objects = [{ 'a': 1 }, { 'b': 2 }];\n *\n * var deep = _.cloneDeep(objects);\n * console.log(deep[0] === objects[0]);\n * // => false\n */\n function cloneDeep(value) {\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);\n }\n\n /**\n * This method is like `_.cloneWith` except that it recursively clones `value`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to recursively clone.\n * @param {Function} [customizer] The function to customize cloning.\n * @returns {*} Returns the deep cloned value.\n * @see _.cloneWith\n * @example\n *\n * function customizer(value) {\n * if (_.isElement(value)) {\n * return value.cloneNode(true);\n * }\n * }\n *\n * var el = _.cloneDeepWith(document.body, customizer);\n *\n * console.log(el === document.body);\n * // => false\n * console.log(el.nodeName);\n * // => 'BODY'\n * console.log(el.childNodes.length);\n * // => 20\n */\n function cloneDeepWith(value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);\n }\n\n /**\n * Checks if `object` conforms to `source` by invoking the predicate\n * properties of `source` with the corresponding property values of `object`.\n *\n * **Note:** This method is equivalent to `_.conforms` when `source` is\n * partially applied.\n *\n * @static\n * @memberOf _\n * @since 4.14.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property predicates to conform to.\n * @returns {boolean} Returns `true` if `object` conforms, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 1; } });\n * // => true\n *\n * _.conformsTo(object, { 'b': function(n) { return n > 2; } });\n * // => false\n */\n function conformsTo(object, source) {\n return source == null || baseConformsTo(object, source, keys(source));\n }\n\n /**\n * Performs a\n * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)\n * comparison between two values to determine if they are equivalent.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.eq(object, object);\n * // => true\n *\n * _.eq(object, other);\n * // => false\n *\n * _.eq('a', 'a');\n * // => true\n *\n * _.eq('a', Object('a'));\n * // => false\n *\n * _.eq(NaN, NaN);\n * // => true\n */\n function eq(value, other) {\n return value === other || (value !== value && other !== other);\n }\n\n /**\n * Checks if `value` is greater than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than `other`,\n * else `false`.\n * @see _.lt\n * @example\n *\n * _.gt(3, 1);\n * // => true\n *\n * _.gt(3, 3);\n * // => false\n *\n * _.gt(1, 3);\n * // => false\n */\n var gt = createRelationalOperation(baseGt);\n\n /**\n * Checks if `value` is greater than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is greater than or equal to\n * `other`, else `false`.\n * @see _.lte\n * @example\n *\n * _.gte(3, 1);\n * // => true\n *\n * _.gte(3, 3);\n * // => true\n *\n * _.gte(1, 3);\n * // => false\n */\n var gte = createRelationalOperation(function(value, other) {\n return value >= other;\n });\n\n /**\n * Checks if `value` is likely an `arguments` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an `arguments` object,\n * else `false`.\n * @example\n *\n * _.isArguments(function() { return arguments; }());\n * // => true\n *\n * _.isArguments([1, 2, 3]);\n * // => false\n */\n var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {\n return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&\n !propertyIsEnumerable.call(value, 'callee');\n };\n\n /**\n * Checks if `value` is classified as an `Array` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array, else `false`.\n * @example\n *\n * _.isArray([1, 2, 3]);\n * // => true\n *\n * _.isArray(document.body.children);\n * // => false\n *\n * _.isArray('abc');\n * // => false\n *\n * _.isArray(_.noop);\n * // => false\n */\n var isArray = Array.isArray;\n\n /**\n * Checks if `value` is classified as an `ArrayBuffer` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.\n * @example\n *\n * _.isArrayBuffer(new ArrayBuffer(2));\n * // => true\n *\n * _.isArrayBuffer(new Array(2));\n * // => false\n */\n var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;\n\n /**\n * Checks if `value` is array-like. A value is considered array-like if it's\n * not a function and has a `value.length` that's an integer greater than or\n * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is array-like, else `false`.\n * @example\n *\n * _.isArrayLike([1, 2, 3]);\n * // => true\n *\n * _.isArrayLike(document.body.children);\n * // => true\n *\n * _.isArrayLike('abc');\n * // => true\n *\n * _.isArrayLike(_.noop);\n * // => false\n */\n function isArrayLike(value) {\n return value != null && isLength(value.length) && !isFunction(value);\n }\n\n /**\n * This method is like `_.isArrayLike` except that it also checks if `value`\n * is an object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an array-like object,\n * else `false`.\n * @example\n *\n * _.isArrayLikeObject([1, 2, 3]);\n * // => true\n *\n * _.isArrayLikeObject(document.body.children);\n * // => true\n *\n * _.isArrayLikeObject('abc');\n * // => false\n *\n * _.isArrayLikeObject(_.noop);\n * // => false\n */\n function isArrayLikeObject(value) {\n return isObjectLike(value) && isArrayLike(value);\n }\n\n /**\n * Checks if `value` is classified as a boolean primitive or object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.\n * @example\n *\n * _.isBoolean(false);\n * // => true\n *\n * _.isBoolean(null);\n * // => false\n */\n function isBoolean(value) {\n return value === true || value === false ||\n (isObjectLike(value) && baseGetTag(value) == boolTag);\n }\n\n /**\n * Checks if `value` is a buffer.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.\n * @example\n *\n * _.isBuffer(new Buffer(2));\n * // => true\n *\n * _.isBuffer(new Uint8Array(2));\n * // => false\n */\n var isBuffer = nativeIsBuffer || stubFalse;\n\n /**\n * Checks if `value` is classified as a `Date` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a date object, else `false`.\n * @example\n *\n * _.isDate(new Date);\n * // => true\n *\n * _.isDate('Mon April 23 2012');\n * // => false\n */\n var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;\n\n /**\n * Checks if `value` is likely a DOM element.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.\n * @example\n *\n * _.isElement(document.body);\n * // => true\n *\n * _.isElement('');\n * // => false\n */\n function isElement(value) {\n return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);\n }\n\n /**\n * Checks if `value` is an empty object, collection, map, or set.\n *\n * Objects are considered empty if they have no own enumerable string keyed\n * properties.\n *\n * Array-like values such as `arguments` objects, arrays, buffers, strings, or\n * jQuery-like collections are considered empty if they have a `length` of `0`.\n * Similarly, maps and sets are considered empty if they have a `size` of `0`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is empty, else `false`.\n * @example\n *\n * _.isEmpty(null);\n * // => true\n *\n * _.isEmpty(true);\n * // => true\n *\n * _.isEmpty(1);\n * // => true\n *\n * _.isEmpty([1, 2, 3]);\n * // => false\n *\n * _.isEmpty({ 'a': 1 });\n * // => false\n */\n function isEmpty(value) {\n if (value == null) {\n return true;\n }\n if (isArrayLike(value) &&\n (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||\n isBuffer(value) || isTypedArray(value) || isArguments(value))) {\n return !value.length;\n }\n var tag = getTag(value);\n if (tag == mapTag || tag == setTag) {\n return !value.size;\n }\n if (isPrototype(value)) {\n return !baseKeys(value).length;\n }\n for (var key in value) {\n if (hasOwnProperty.call(value, key)) {\n return false;\n }\n }\n return true;\n }\n\n /**\n * Performs a deep comparison between two values to determine if they are\n * equivalent.\n *\n * **Note:** This method supports comparing arrays, array buffers, booleans,\n * date objects, error objects, maps, numbers, `Object` objects, regexes,\n * sets, strings, symbols, and typed arrays. `Object` objects are compared\n * by their own, not inherited, enumerable properties. Functions and DOM\n * nodes are compared by strict equality, i.e. `===`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * var object = { 'a': 1 };\n * var other = { 'a': 1 };\n *\n * _.isEqual(object, other);\n * // => true\n *\n * object === other;\n * // => false\n */\n function isEqual(value, other) {\n return baseIsEqual(value, other);\n }\n\n /**\n * This method is like `_.isEqual` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with up to\n * six arguments: (objValue, othValue [, index|key, object, other, stack]).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if the values are equivalent, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, othValue) {\n * if (isGreeting(objValue) && isGreeting(othValue)) {\n * return true;\n * }\n * }\n *\n * var array = ['hello', 'goodbye'];\n * var other = ['hi', 'goodbye'];\n *\n * _.isEqualWith(array, other, customizer);\n * // => true\n */\n function isEqualWith(value, other, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n var result = customizer ? customizer(value, other) : undefined;\n return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;\n }\n\n /**\n * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,\n * `SyntaxError`, `TypeError`, or `URIError` object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an error object, else `false`.\n * @example\n *\n * _.isError(new Error);\n * // => true\n *\n * _.isError(Error);\n * // => false\n */\n function isError(value) {\n if (!isObjectLike(value)) {\n return false;\n }\n var tag = baseGetTag(value);\n return tag == errorTag || tag == domExcTag ||\n (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));\n }\n\n /**\n * Checks if `value` is a finite primitive number.\n *\n * **Note:** This method is based on\n * [`Number.isFinite`](https://mdn.io/Number/isFinite).\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.\n * @example\n *\n * _.isFinite(3);\n * // => true\n *\n * _.isFinite(Number.MIN_VALUE);\n * // => true\n *\n * _.isFinite(Infinity);\n * // => false\n *\n * _.isFinite('3');\n * // => false\n */\n function isFinite(value) {\n return typeof value == 'number' && nativeIsFinite(value);\n }\n\n /**\n * Checks if `value` is classified as a `Function` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a function, else `false`.\n * @example\n *\n * _.isFunction(_);\n * // => true\n *\n * _.isFunction(/abc/);\n * // => false\n */\n function isFunction(value) {\n if (!isObject(value)) {\n return false;\n }\n // The use of `Object#toString` avoids issues with the `typeof` operator\n // in Safari 9 which returns 'object' for typed arrays and other constructors.\n var tag = baseGetTag(value);\n return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;\n }\n\n /**\n * Checks if `value` is an integer.\n *\n * **Note:** This method is based on\n * [`Number.isInteger`](https://mdn.io/Number/isInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an integer, else `false`.\n * @example\n *\n * _.isInteger(3);\n * // => true\n *\n * _.isInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isInteger(Infinity);\n * // => false\n *\n * _.isInteger('3');\n * // => false\n */\n function isInteger(value) {\n return typeof value == 'number' && value == toInteger(value);\n }\n\n /**\n * Checks if `value` is a valid array-like length.\n *\n * **Note:** This method is loosely based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.\n * @example\n *\n * _.isLength(3);\n * // => true\n *\n * _.isLength(Number.MIN_VALUE);\n * // => false\n *\n * _.isLength(Infinity);\n * // => false\n *\n * _.isLength('3');\n * // => false\n */\n function isLength(value) {\n return typeof value == 'number' &&\n value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;\n }\n\n /**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\n function isObject(value) {\n var type = typeof value;\n return value != null && (type == 'object' || type == 'function');\n }\n\n /**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\n function isObjectLike(value) {\n return value != null && typeof value == 'object';\n }\n\n /**\n * Checks if `value` is classified as a `Map` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a map, else `false`.\n * @example\n *\n * _.isMap(new Map);\n * // => true\n *\n * _.isMap(new WeakMap);\n * // => false\n */\n var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;\n\n /**\n * Performs a partial deep comparison between `object` and `source` to\n * determine if `object` contains equivalent property values.\n *\n * **Note:** This method is equivalent to `_.matches` when `source` is\n * partially applied.\n *\n * Partial comparisons will match empty array and empty object `source`\n * values against any array or object value, respectively. See `_.isEqual`\n * for a list of supported value comparisons.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * var object = { 'a': 1, 'b': 2 };\n *\n * _.isMatch(object, { 'b': 2 });\n * // => true\n *\n * _.isMatch(object, { 'b': 1 });\n * // => false\n */\n function isMatch(object, source) {\n return object === source || baseIsMatch(object, source, getMatchData(source));\n }\n\n /**\n * This method is like `_.isMatch` except that it accepts `customizer` which\n * is invoked to compare values. If `customizer` returns `undefined`, comparisons\n * are handled by the method instead. The `customizer` is invoked with five\n * arguments: (objValue, srcValue, index|key, object, source).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {Object} object The object to inspect.\n * @param {Object} source The object of property values to match.\n * @param {Function} [customizer] The function to customize comparisons.\n * @returns {boolean} Returns `true` if `object` is a match, else `false`.\n * @example\n *\n * function isGreeting(value) {\n * return /^h(?:i|ello)$/.test(value);\n * }\n *\n * function customizer(objValue, srcValue) {\n * if (isGreeting(objValue) && isGreeting(srcValue)) {\n * return true;\n * }\n * }\n *\n * var object = { 'greeting': 'hello' };\n * var source = { 'greeting': 'hi' };\n *\n * _.isMatchWith(object, source, customizer);\n * // => true\n */\n function isMatchWith(object, source, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return baseIsMatch(object, source, getMatchData(source), customizer);\n }\n\n /**\n * Checks if `value` is `NaN`.\n *\n * **Note:** This method is based on\n * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as\n * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for\n * `undefined` and other non-number values.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.\n * @example\n *\n * _.isNaN(NaN);\n * // => true\n *\n * _.isNaN(new Number(NaN));\n * // => true\n *\n * isNaN(undefined);\n * // => true\n *\n * _.isNaN(undefined);\n * // => false\n */\n function isNaN(value) {\n // An `NaN` primitive is the only value that is not equal to itself.\n // Perform the `toStringTag` check first to avoid errors with some\n // ActiveX objects in IE.\n return isNumber(value) && value != +value;\n }\n\n /**\n * Checks if `value` is a pristine native function.\n *\n * **Note:** This method can't reliably detect native functions in the presence\n * of the core-js package because core-js circumvents this kind of detection.\n * Despite multiple requests, the core-js maintainer has made it clear: any\n * attempt to fix the detection will be obstructed. As a result, we're left\n * with little choice but to throw an error. Unfortunately, this also affects\n * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),\n * which rely on core-js.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a native function,\n * else `false`.\n * @example\n *\n * _.isNative(Array.prototype.push);\n * // => true\n *\n * _.isNative(_);\n * // => false\n */\n function isNative(value) {\n if (isMaskable(value)) {\n throw new Error(CORE_ERROR_TEXT);\n }\n return baseIsNative(value);\n }\n\n /**\n * Checks if `value` is `null`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `null`, else `false`.\n * @example\n *\n * _.isNull(null);\n * // => true\n *\n * _.isNull(void 0);\n * // => false\n */\n function isNull(value) {\n return value === null;\n }\n\n /**\n * Checks if `value` is `null` or `undefined`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is nullish, else `false`.\n * @example\n *\n * _.isNil(null);\n * // => true\n *\n * _.isNil(void 0);\n * // => true\n *\n * _.isNil(NaN);\n * // => false\n */\n function isNil(value) {\n return value == null;\n }\n\n /**\n * Checks if `value` is classified as a `Number` primitive or object.\n *\n * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are\n * classified as numbers, use the `_.isFinite` method.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a number, else `false`.\n * @example\n *\n * _.isNumber(3);\n * // => true\n *\n * _.isNumber(Number.MIN_VALUE);\n * // => true\n *\n * _.isNumber(Infinity);\n * // => true\n *\n * _.isNumber('3');\n * // => false\n */\n function isNumber(value) {\n return typeof value == 'number' ||\n (isObjectLike(value) && baseGetTag(value) == numberTag);\n }\n\n /**\n * Checks if `value` is a plain object, that is, an object created by the\n * `Object` constructor or one with a `[[Prototype]]` of `null`.\n *\n * @static\n * @memberOf _\n * @since 0.8.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * _.isPlainObject(new Foo);\n * // => false\n *\n * _.isPlainObject([1, 2, 3]);\n * // => false\n *\n * _.isPlainObject({ 'x': 0, 'y': 0 });\n * // => true\n *\n * _.isPlainObject(Object.create(null));\n * // => true\n */\n function isPlainObject(value) {\n if (!isObjectLike(value) || baseGetTag(value) != objectTag) {\n return false;\n }\n var proto = getPrototype(value);\n if (proto === null) {\n return true;\n }\n var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;\n return typeof Ctor == 'function' && Ctor instanceof Ctor &&\n funcToString.call(Ctor) == objectCtorString;\n }\n\n /**\n * Checks if `value` is classified as a `RegExp` object.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.\n * @example\n *\n * _.isRegExp(/abc/);\n * // => true\n *\n * _.isRegExp('/abc/');\n * // => false\n */\n var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;\n\n /**\n * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754\n * double precision number which isn't the result of a rounded unsafe integer.\n *\n * **Note:** This method is based on\n * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.\n * @example\n *\n * _.isSafeInteger(3);\n * // => true\n *\n * _.isSafeInteger(Number.MIN_VALUE);\n * // => false\n *\n * _.isSafeInteger(Infinity);\n * // => false\n *\n * _.isSafeInteger('3');\n * // => false\n */\n function isSafeInteger(value) {\n return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;\n }\n\n /**\n * Checks if `value` is classified as a `Set` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a set, else `false`.\n * @example\n *\n * _.isSet(new Set);\n * // => true\n *\n * _.isSet(new WeakSet);\n * // => false\n */\n var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;\n\n /**\n * Checks if `value` is classified as a `String` primitive or object.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a string, else `false`.\n * @example\n *\n * _.isString('abc');\n * // => true\n *\n * _.isString(1);\n * // => false\n */\n function isString(value) {\n return typeof value == 'string' ||\n (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);\n }\n\n /**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\n function isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && baseGetTag(value) == symbolTag);\n }\n\n /**\n * Checks if `value` is classified as a typed array.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.\n * @example\n *\n * _.isTypedArray(new Uint8Array);\n * // => true\n *\n * _.isTypedArray([]);\n * // => false\n */\n var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;\n\n /**\n * Checks if `value` is `undefined`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.\n * @example\n *\n * _.isUndefined(void 0);\n * // => true\n *\n * _.isUndefined(null);\n * // => false\n */\n function isUndefined(value) {\n return value === undefined;\n }\n\n /**\n * Checks if `value` is classified as a `WeakMap` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.\n * @example\n *\n * _.isWeakMap(new WeakMap);\n * // => true\n *\n * _.isWeakMap(new Map);\n * // => false\n */\n function isWeakMap(value) {\n return isObjectLike(value) && getTag(value) == weakMapTag;\n }\n\n /**\n * Checks if `value` is classified as a `WeakSet` object.\n *\n * @static\n * @memberOf _\n * @since 4.3.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.\n * @example\n *\n * _.isWeakSet(new WeakSet);\n * // => true\n *\n * _.isWeakSet(new Set);\n * // => false\n */\n function isWeakSet(value) {\n return isObjectLike(value) && baseGetTag(value) == weakSetTag;\n }\n\n /**\n * Checks if `value` is less than `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than `other`,\n * else `false`.\n * @see _.gt\n * @example\n *\n * _.lt(1, 3);\n * // => true\n *\n * _.lt(3, 3);\n * // => false\n *\n * _.lt(3, 1);\n * // => false\n */\n var lt = createRelationalOperation(baseLt);\n\n /**\n * Checks if `value` is less than or equal to `other`.\n *\n * @static\n * @memberOf _\n * @since 3.9.0\n * @category Lang\n * @param {*} value The value to compare.\n * @param {*} other The other value to compare.\n * @returns {boolean} Returns `true` if `value` is less than or equal to\n * `other`, else `false`.\n * @see _.gte\n * @example\n *\n * _.lte(1, 3);\n * // => true\n *\n * _.lte(3, 3);\n * // => true\n *\n * _.lte(3, 1);\n * // => false\n */\n var lte = createRelationalOperation(function(value, other) {\n return value <= other;\n });\n\n /**\n * Converts `value` to an array.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Array} Returns the converted array.\n * @example\n *\n * _.toArray({ 'a': 1, 'b': 2 });\n * // => [1, 2]\n *\n * _.toArray('abc');\n * // => ['a', 'b', 'c']\n *\n * _.toArray(1);\n * // => []\n *\n * _.toArray(null);\n * // => []\n */\n function toArray(value) {\n if (!value) {\n return [];\n }\n if (isArrayLike(value)) {\n return isString(value) ? stringToArray(value) : copyArray(value);\n }\n if (symIterator && value[symIterator]) {\n return iteratorToArray(value[symIterator]());\n }\n var tag = getTag(value),\n func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);\n\n return func(value);\n }\n\n /**\n * Converts `value` to a finite number.\n *\n * @static\n * @memberOf _\n * @since 4.12.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted number.\n * @example\n *\n * _.toFinite(3.2);\n * // => 3.2\n *\n * _.toFinite(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toFinite(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toFinite('3.2');\n * // => 3.2\n */\n function toFinite(value) {\n if (!value) {\n return value === 0 ? value : 0;\n }\n value = toNumber(value);\n if (value === INFINITY || value === -INFINITY) {\n var sign = (value < 0 ? -1 : 1);\n return sign * MAX_INTEGER;\n }\n return value === value ? value : 0;\n }\n\n /**\n * Converts `value` to an integer.\n *\n * **Note:** This method is loosely based on\n * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toInteger(3.2);\n * // => 3\n *\n * _.toInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toInteger(Infinity);\n * // => 1.7976931348623157e+308\n *\n * _.toInteger('3.2');\n * // => 3\n */\n function toInteger(value) {\n var result = toFinite(value),\n remainder = result % 1;\n\n return result === result ? (remainder ? result - remainder : result) : 0;\n }\n\n /**\n * Converts `value` to an integer suitable for use as the length of an\n * array-like object.\n *\n * **Note:** This method is based on\n * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toLength(3.2);\n * // => 3\n *\n * _.toLength(Number.MIN_VALUE);\n * // => 0\n *\n * _.toLength(Infinity);\n * // => 4294967295\n *\n * _.toLength('3.2');\n * // => 3\n */\n function toLength(value) {\n return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;\n }\n\n /**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\n function toNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n if (isObject(value)) {\n var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n value = isObject(other) ? (other + '') : other;\n }\n if (typeof value != 'string') {\n return value === 0 ? value : +value;\n }\n value = baseTrim(value);\n var isBinary = reIsBinary.test(value);\n return (isBinary || reIsOctal.test(value))\n ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n : (reIsBadHex.test(value) ? NAN : +value);\n }\n\n /**\n * Converts `value` to a plain object flattening inherited enumerable string\n * keyed properties of `value` to own properties of the plain object.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {Object} Returns the converted plain object.\n * @example\n *\n * function Foo() {\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.assign({ 'a': 1 }, new Foo);\n * // => { 'a': 1, 'b': 2 }\n *\n * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));\n * // => { 'a': 1, 'b': 2, 'c': 3 }\n */\n function toPlainObject(value) {\n return copyObject(value, keysIn(value));\n }\n\n /**\n * Converts `value` to a safe integer. A safe integer can be compared and\n * represented correctly.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.toSafeInteger(3.2);\n * // => 3\n *\n * _.toSafeInteger(Number.MIN_VALUE);\n * // => 0\n *\n * _.toSafeInteger(Infinity);\n * // => 9007199254740991\n *\n * _.toSafeInteger('3.2');\n * // => 3\n */\n function toSafeInteger(value) {\n return value\n ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)\n : (value === 0 ? value : 0);\n }\n\n /**\n * Converts `value` to a string. An empty string is returned for `null`\n * and `undefined` values. The sign of `-0` is preserved.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.toString(null);\n * // => ''\n *\n * _.toString(-0);\n * // => '-0'\n *\n * _.toString([1, 2, 3]);\n * // => '1,2,3'\n */\n function toString(value) {\n return value == null ? '' : baseToString(value);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Assigns own enumerable string keyed properties of source objects to the\n * destination object. Source objects are applied from left to right.\n * Subsequent sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object` and is loosely based on\n * [`Object.assign`](https://mdn.io/Object/assign).\n *\n * @static\n * @memberOf _\n * @since 0.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assignIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assign({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'c': 3 }\n */\n var assign = createAssigner(function(object, source) {\n if (isPrototype(source) || isArrayLike(source)) {\n copyObject(source, keys(source), object);\n return;\n }\n for (var key in source) {\n if (hasOwnProperty.call(source, key)) {\n assignValue(object, key, source[key]);\n }\n }\n });\n\n /**\n * This method is like `_.assign` except that it iterates over own and\n * inherited source properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extend\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.assign\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * }\n *\n * function Bar() {\n * this.c = 3;\n * }\n *\n * Foo.prototype.b = 2;\n * Bar.prototype.d = 4;\n *\n * _.assignIn({ 'a': 0 }, new Foo, new Bar);\n * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }\n */\n var assignIn = createAssigner(function(object, source) {\n copyObject(source, keysIn(source), object);\n });\n\n /**\n * This method is like `_.assignIn` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias extendWith\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignInWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keysIn(source), object, customizer);\n });\n\n /**\n * This method is like `_.assign` except that it accepts `customizer`\n * which is invoked to produce the assigned values. If `customizer` returns\n * `undefined`, assignment is handled by the method instead. The `customizer`\n * is invoked with five arguments: (objValue, srcValue, key, object, source).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @see _.assignInWith\n * @example\n *\n * function customizer(objValue, srcValue) {\n * return _.isUndefined(objValue) ? srcValue : objValue;\n * }\n *\n * var defaults = _.partialRight(_.assignWith, customizer);\n *\n * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var assignWith = createAssigner(function(object, source, srcIndex, customizer) {\n copyObject(source, keys(source), object, customizer);\n });\n\n /**\n * Creates an array of values corresponding to `paths` of `object`.\n *\n * @static\n * @memberOf _\n * @since 1.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Array} Returns the picked values.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };\n *\n * _.at(object, ['a[0].b.c', 'a[1]']);\n * // => [3, 4]\n */\n var at = flatRest(baseAt);\n\n /**\n * Creates an object that inherits from the `prototype` object. If a\n * `properties` object is given, its own enumerable string keyed properties\n * are assigned to the created object.\n *\n * @static\n * @memberOf _\n * @since 2.3.0\n * @category Object\n * @param {Object} prototype The object to inherit from.\n * @param {Object} [properties] The properties to assign to the object.\n * @returns {Object} Returns the new object.\n * @example\n *\n * function Shape() {\n * this.x = 0;\n * this.y = 0;\n * }\n *\n * function Circle() {\n * Shape.call(this);\n * }\n *\n * Circle.prototype = _.create(Shape.prototype, {\n * 'constructor': Circle\n * });\n *\n * var circle = new Circle;\n * circle instanceof Circle;\n * // => true\n *\n * circle instanceof Shape;\n * // => true\n */\n function create(prototype, properties) {\n var result = baseCreate(prototype);\n return properties == null ? result : baseAssign(result, properties);\n }\n\n /**\n * Assigns own and inherited enumerable string keyed properties of source\n * objects to the destination object for all destination properties that\n * resolve to `undefined`. Source objects are applied from left to right.\n * Once a property is set, additional values of the same property are ignored.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaultsDeep\n * @example\n *\n * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });\n * // => { 'a': 1, 'b': 2 }\n */\n var defaults = baseRest(function(object, sources) {\n object = Object(object);\n\n var index = -1;\n var length = sources.length;\n var guard = length > 2 ? sources[2] : undefined;\n\n if (guard && isIterateeCall(sources[0], sources[1], guard)) {\n length = 1;\n }\n\n while (++index < length) {\n var source = sources[index];\n var props = keysIn(source);\n var propsIndex = -1;\n var propsLength = props.length;\n\n while (++propsIndex < propsLength) {\n var key = props[propsIndex];\n var value = object[key];\n\n if (value === undefined ||\n (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {\n object[key] = source[key];\n }\n }\n }\n\n return object;\n });\n\n /**\n * This method is like `_.defaults` except that it recursively assigns\n * default properties.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.10.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @see _.defaults\n * @example\n *\n * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });\n * // => { 'a': { 'b': 2, 'c': 3 } }\n */\n var defaultsDeep = baseRest(function(args) {\n args.push(undefined, customDefaultsMerge);\n return apply(mergeWith, undefined, args);\n });\n\n /**\n * This method is like `_.find` except that it returns the key of the first\n * element `predicate` returns truthy for instead of the element itself.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findKey(users, function(o) { return o.age < 40; });\n * // => 'barney' (iteration order is not guaranteed)\n *\n * // The `_.matches` iteratee shorthand.\n * _.findKey(users, { 'age': 1, 'active': true });\n * // => 'pebbles'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findKey(users, 'active');\n * // => 'barney'\n */\n function findKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);\n }\n\n /**\n * This method is like `_.findKey` except that it iterates over elements of\n * a collection in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @param {Function} [predicate=_.identity] The function invoked per iteration.\n * @returns {string|undefined} Returns the key of the matched element,\n * else `undefined`.\n * @example\n *\n * var users = {\n * 'barney': { 'age': 36, 'active': true },\n * 'fred': { 'age': 40, 'active': false },\n * 'pebbles': { 'age': 1, 'active': true }\n * };\n *\n * _.findLastKey(users, function(o) { return o.age < 40; });\n * // => returns 'pebbles' assuming `_.findKey` returns 'barney'\n *\n * // The `_.matches` iteratee shorthand.\n * _.findLastKey(users, { 'age': 36, 'active': true });\n * // => 'barney'\n *\n * // The `_.matchesProperty` iteratee shorthand.\n * _.findLastKey(users, ['active', false]);\n * // => 'fred'\n *\n * // The `_.property` iteratee shorthand.\n * _.findLastKey(users, 'active');\n * // => 'pebbles'\n */\n function findLastKey(object, predicate) {\n return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);\n }\n\n /**\n * Iterates over own and inherited enumerable string keyed properties of an\n * object and invokes `iteratee` for each property. The iteratee is invoked\n * with three arguments: (value, key, object). Iteratee functions may exit\n * iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forInRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forIn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).\n */\n function forIn(object, iteratee) {\n return object == null\n ? object\n : baseFor(object, getIteratee(iteratee, 3), keysIn);\n }\n\n /**\n * This method is like `_.forIn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forIn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forInRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.\n */\n function forInRight(object, iteratee) {\n return object == null\n ? object\n : baseForRight(object, getIteratee(iteratee, 3), keysIn);\n }\n\n /**\n * Iterates over own enumerable string keyed properties of an object and\n * invokes `iteratee` for each property. The iteratee is invoked with three\n * arguments: (value, key, object). Iteratee functions may exit iteration\n * early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 0.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwnRight\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwn(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\n */\n function forOwn(object, iteratee) {\n return object && baseForOwn(object, getIteratee(iteratee, 3));\n }\n\n /**\n * This method is like `_.forOwn` except that it iterates over properties of\n * `object` in the opposite order.\n *\n * @static\n * @memberOf _\n * @since 2.0.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns `object`.\n * @see _.forOwn\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.forOwnRight(new Foo, function(value, key) {\n * console.log(key);\n * });\n * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.\n */\n function forOwnRight(object, iteratee) {\n return object && baseForOwnRight(object, getIteratee(iteratee, 3));\n }\n\n /**\n * Creates an array of function property names from own enumerable properties\n * of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functionsIn\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functions(new Foo);\n * // => ['a', 'b']\n */\n function functions(object) {\n return object == null ? [] : baseFunctions(object, keys(object));\n }\n\n /**\n * Creates an array of function property names from own and inherited\n * enumerable properties of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to inspect.\n * @returns {Array} Returns the function names.\n * @see _.functions\n * @example\n *\n * function Foo() {\n * this.a = _.constant('a');\n * this.b = _.constant('b');\n * }\n *\n * Foo.prototype.c = _.constant('c');\n *\n * _.functionsIn(new Foo);\n * // => ['a', 'b', 'c']\n */\n function functionsIn(object) {\n return object == null ? [] : baseFunctions(object, keysIn(object));\n }\n\n /**\n * Gets the value at `path` of `object`. If the resolved value is\n * `undefined`, the `defaultValue` is returned in its place.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to get.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.get(object, 'a[0].b.c');\n * // => 3\n *\n * _.get(object, ['a', '0', 'b', 'c']);\n * // => 3\n *\n * _.get(object, 'a.b.c', 'default');\n * // => 'default'\n */\n function get(object, path, defaultValue) {\n var result = object == null ? undefined : baseGet(object, path);\n return result === undefined ? defaultValue : result;\n }\n\n /**\n * Checks if `path` is a direct property of `object`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = { 'a': { 'b': 2 } };\n * var other = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.has(object, 'a');\n * // => true\n *\n * _.has(object, 'a.b');\n * // => true\n *\n * _.has(object, ['a', 'b']);\n * // => true\n *\n * _.has(other, 'a');\n * // => false\n */\n function has(object, path) {\n return object != null && hasPath(object, path, baseHas);\n }\n\n /**\n * Checks if `path` is a direct or inherited property of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path to check.\n * @returns {boolean} Returns `true` if `path` exists, else `false`.\n * @example\n *\n * var object = _.create({ 'a': _.create({ 'b': 2 }) });\n *\n * _.hasIn(object, 'a');\n * // => true\n *\n * _.hasIn(object, 'a.b');\n * // => true\n *\n * _.hasIn(object, ['a', 'b']);\n * // => true\n *\n * _.hasIn(object, 'b');\n * // => false\n */\n function hasIn(object, path) {\n return object != null && hasPath(object, path, baseHasIn);\n }\n\n /**\n * Creates an object composed of the inverted keys and values of `object`.\n * If `object` contains duplicate values, subsequent values overwrite\n * property assignments of previous values.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Object\n * @param {Object} object The object to invert.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invert(object);\n * // => { '1': 'c', '2': 'b' }\n */\n var invert = createInverter(function(result, value, key) {\n if (value != null &&\n typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n result[value] = key;\n }, constant(identity));\n\n /**\n * This method is like `_.invert` except that the inverted object is generated\n * from the results of running each element of `object` thru `iteratee`. The\n * corresponding inverted value of each inverted key is an array of keys\n * responsible for generating the inverted value. The iteratee is invoked\n * with one argument: (value).\n *\n * @static\n * @memberOf _\n * @since 4.1.0\n * @category Object\n * @param {Object} object The object to invert.\n * @param {Function} [iteratee=_.identity] The iteratee invoked per element.\n * @returns {Object} Returns the new inverted object.\n * @example\n *\n * var object = { 'a': 1, 'b': 2, 'c': 1 };\n *\n * _.invertBy(object);\n * // => { '1': ['a', 'c'], '2': ['b'] }\n *\n * _.invertBy(object, function(value) {\n * return 'group' + value;\n * });\n * // => { 'group1': ['a', 'c'], 'group2': ['b'] }\n */\n var invertBy = createInverter(function(result, value, key) {\n if (value != null &&\n typeof value.toString != 'function') {\n value = nativeObjectToString.call(value);\n }\n\n if (hasOwnProperty.call(result, value)) {\n result[value].push(key);\n } else {\n result[value] = [key];\n }\n }, getIteratee);\n\n /**\n * Invokes the method at `path` of `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the method to invoke.\n * @param {...*} [args] The arguments to invoke the method with.\n * @returns {*} Returns the result of the invoked method.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };\n *\n * _.invoke(object, 'a[0].b.c.slice', 1, 3);\n * // => [2, 3]\n */\n var invoke = baseRest(baseInvoke);\n\n /**\n * Creates an array of the own enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects. See the\n * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)\n * for more details.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keys(new Foo);\n * // => ['a', 'b'] (iteration order is not guaranteed)\n *\n * _.keys('hi');\n * // => ['0', '1']\n */\n function keys(object) {\n return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);\n }\n\n /**\n * Creates an array of the own and inherited enumerable property names of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property names.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.keysIn(new Foo);\n * // => ['a', 'b', 'c'] (iteration order is not guaranteed)\n */\n function keysIn(object) {\n return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);\n }\n\n /**\n * The opposite of `_.mapValues`; this method creates an object with the\n * same values as `object` and keys generated by running each own enumerable\n * string keyed property of `object` thru `iteratee`. The iteratee is invoked\n * with three arguments: (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 3.8.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapValues\n * @example\n *\n * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {\n * return key + value;\n * });\n * // => { 'a1': 1, 'b2': 2 }\n */\n function mapKeys(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n\n baseForOwn(object, function(value, key, object) {\n baseAssignValue(result, iteratee(value, key, object), value);\n });\n return result;\n }\n\n /**\n * Creates an object with the same keys as `object` and values generated\n * by running each own enumerable string keyed property of `object` thru\n * `iteratee`. The iteratee is invoked with three arguments:\n * (value, key, object).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @returns {Object} Returns the new mapped object.\n * @see _.mapKeys\n * @example\n *\n * var users = {\n * 'fred': { 'user': 'fred', 'age': 40 },\n * 'pebbles': { 'user': 'pebbles', 'age': 1 }\n * };\n *\n * _.mapValues(users, function(o) { return o.age; });\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n *\n * // The `_.property` iteratee shorthand.\n * _.mapValues(users, 'age');\n * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)\n */\n function mapValues(object, iteratee) {\n var result = {};\n iteratee = getIteratee(iteratee, 3);\n\n baseForOwn(object, function(value, key, object) {\n baseAssignValue(result, key, iteratee(value, key, object));\n });\n return result;\n }\n\n /**\n * This method is like `_.assign` except that it recursively merges own and\n * inherited enumerable string keyed properties of source objects into the\n * destination object. Source properties that resolve to `undefined` are\n * skipped if a destination value exists. Array and plain object properties\n * are merged recursively. Other objects and value types are overridden by\n * assignment. Source objects are applied from left to right. Subsequent\n * sources overwrite property assignments of previous sources.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 0.5.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} [sources] The source objects.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {\n * 'a': [{ 'b': 2 }, { 'd': 4 }]\n * };\n *\n * var other = {\n * 'a': [{ 'c': 3 }, { 'e': 5 }]\n * };\n *\n * _.merge(object, other);\n * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }\n */\n var merge = createAssigner(function(object, source, srcIndex) {\n baseMerge(object, source, srcIndex);\n });\n\n /**\n * This method is like `_.merge` except that it accepts `customizer` which\n * is invoked to produce the merged values of the destination and source\n * properties. If `customizer` returns `undefined`, merging is handled by the\n * method instead. The `customizer` is invoked with six arguments:\n * (objValue, srcValue, key, object, source, stack).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The destination object.\n * @param {...Object} sources The source objects.\n * @param {Function} customizer The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * function customizer(objValue, srcValue) {\n * if (_.isArray(objValue)) {\n * return objValue.concat(srcValue);\n * }\n * }\n *\n * var object = { 'a': [1], 'b': [2] };\n * var other = { 'a': [3], 'b': [4] };\n *\n * _.mergeWith(object, other, customizer);\n * // => { 'a': [1, 3], 'b': [2, 4] }\n */\n var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {\n baseMerge(object, source, srcIndex, customizer);\n });\n\n /**\n * The opposite of `_.pick`; this method creates an object composed of the\n * own and inherited enumerable property paths of `object` that are not omitted.\n *\n * **Note:** This method is considerably slower than `_.pick`.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to omit.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omit(object, ['a', 'c']);\n * // => { 'b': '2' }\n */\n var omit = flatRest(function(object, paths) {\n var result = {};\n if (object == null) {\n return result;\n }\n var isDeep = false;\n paths = arrayMap(paths, function(path) {\n path = castPath(path, object);\n isDeep || (isDeep = path.length > 1);\n return path;\n });\n copyObject(object, getAllKeysIn(object), result);\n if (isDeep) {\n result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);\n }\n var length = paths.length;\n while (length--) {\n baseUnset(result, paths[length]);\n }\n return result;\n });\n\n /**\n * The opposite of `_.pickBy`; this method creates an object composed of\n * the own and inherited enumerable string keyed properties of `object` that\n * `predicate` doesn't return truthy for. The predicate is invoked with two\n * arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.omitBy(object, _.isNumber);\n * // => { 'b': '2' }\n */\n function omitBy(object, predicate) {\n return pickBy(object, negate(getIteratee(predicate)));\n }\n\n /**\n * Creates an object composed of the picked `object` properties.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The source object.\n * @param {...(string|string[])} [paths] The property paths to pick.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pick(object, ['a', 'c']);\n * // => { 'a': 1, 'c': 3 }\n */\n var pick = flatRest(function(object, paths) {\n return object == null ? {} : basePick(object, paths);\n });\n\n /**\n * Creates an object composed of the `object` properties `predicate` returns\n * truthy for. The predicate is invoked with two arguments: (value, key).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The source object.\n * @param {Function} [predicate=_.identity] The function invoked per property.\n * @returns {Object} Returns the new object.\n * @example\n *\n * var object = { 'a': 1, 'b': '2', 'c': 3 };\n *\n * _.pickBy(object, _.isNumber);\n * // => { 'a': 1, 'c': 3 }\n */\n function pickBy(object, predicate) {\n if (object == null) {\n return {};\n }\n var props = arrayMap(getAllKeysIn(object), function(prop) {\n return [prop];\n });\n predicate = getIteratee(predicate);\n return basePickBy(object, props, function(value, path) {\n return predicate(value, path[0]);\n });\n }\n\n /**\n * This method is like `_.get` except that if the resolved value is a\n * function it's invoked with the `this` binding of its parent object and\n * its result is returned.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @param {Array|string} path The path of the property to resolve.\n * @param {*} [defaultValue] The value returned for `undefined` resolved values.\n * @returns {*} Returns the resolved value.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };\n *\n * _.result(object, 'a[0].b.c1');\n * // => 3\n *\n * _.result(object, 'a[0].b.c2');\n * // => 4\n *\n * _.result(object, 'a[0].b.c3', 'default');\n * // => 'default'\n *\n * _.result(object, 'a[0].b.c3', _.constant('default'));\n * // => 'default'\n */\n function result(object, path, defaultValue) {\n path = castPath(path, object);\n\n var index = -1,\n length = path.length;\n\n // Ensure the loop is entered when path is empty.\n if (!length) {\n length = 1;\n object = undefined;\n }\n while (++index < length) {\n var value = object == null ? undefined : object[toKey(path[index])];\n if (value === undefined) {\n index = length;\n value = defaultValue;\n }\n object = isFunction(value) ? value.call(object) : value;\n }\n return object;\n }\n\n /**\n * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,\n * it's created. Arrays are created for missing index properties while objects\n * are created for all other missing properties. Use `_.setWith` to customize\n * `path` creation.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 3.7.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.set(object, 'a[0].b.c', 4);\n * console.log(object.a[0].b.c);\n * // => 4\n *\n * _.set(object, ['x', '0', 'y', 'z'], 5);\n * console.log(object.x[0].y.z);\n * // => 5\n */\n function set(object, path, value) {\n return object == null ? object : baseSet(object, path, value);\n }\n\n /**\n * This method is like `_.set` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {*} value The value to set.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.setWith(object, '[0][1]', 'a', Object);\n * // => { '0': { '1': 'a' } }\n */\n function setWith(object, path, value, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseSet(object, path, value, customizer);\n }\n\n /**\n * Creates an array of own enumerable string keyed-value pairs for `object`\n * which can be consumed by `_.fromPairs`. If `object` is a map or set, its\n * entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entries\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairs(new Foo);\n * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)\n */\n var toPairs = createToPairs(keys);\n\n /**\n * Creates an array of own and inherited enumerable string keyed-value pairs\n * for `object` which can be consumed by `_.fromPairs`. If `object` is a map\n * or set, its entries are returned.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @alias entriesIn\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the key-value pairs.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.toPairsIn(new Foo);\n * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)\n */\n var toPairsIn = createToPairs(keysIn);\n\n /**\n * An alternative to `_.reduce`; this method transforms `object` to a new\n * `accumulator` object which is the result of running each of its own\n * enumerable string keyed properties thru `iteratee`, with each invocation\n * potentially mutating the `accumulator` object. If `accumulator` is not\n * provided, a new object with the same `[[Prototype]]` will be used. The\n * iteratee is invoked with four arguments: (accumulator, value, key, object).\n * Iteratee functions may exit iteration early by explicitly returning `false`.\n *\n * @static\n * @memberOf _\n * @since 1.3.0\n * @category Object\n * @param {Object} object The object to iterate over.\n * @param {Function} [iteratee=_.identity] The function invoked per iteration.\n * @param {*} [accumulator] The custom accumulator value.\n * @returns {*} Returns the accumulated value.\n * @example\n *\n * _.transform([2, 3, 4], function(result, n) {\n * result.push(n *= n);\n * return n % 2 == 0;\n * }, []);\n * // => [4, 9]\n *\n * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {\n * (result[value] || (result[value] = [])).push(key);\n * }, {});\n * // => { '1': ['a', 'c'], '2': ['b'] }\n */\n function transform(object, iteratee, accumulator) {\n var isArr = isArray(object),\n isArrLike = isArr || isBuffer(object) || isTypedArray(object);\n\n iteratee = getIteratee(iteratee, 4);\n if (accumulator == null) {\n var Ctor = object && object.constructor;\n if (isArrLike) {\n accumulator = isArr ? new Ctor : [];\n }\n else if (isObject(object)) {\n accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};\n }\n else {\n accumulator = {};\n }\n }\n (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {\n return iteratee(accumulator, value, index, object);\n });\n return accumulator;\n }\n\n /**\n * Removes the property at `path` of `object`.\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to unset.\n * @returns {boolean} Returns `true` if the property is deleted, else `false`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 7 } }] };\n * _.unset(object, 'a[0].b.c');\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n *\n * _.unset(object, ['a', '0', 'b', 'c']);\n * // => true\n *\n * console.log(object);\n * // => { 'a': [{ 'b': {} }] };\n */\n function unset(object, path) {\n return object == null ? true : baseUnset(object, path);\n }\n\n /**\n * This method is like `_.set` except that accepts `updater` to produce the\n * value to set. Use `_.updateWith` to customize `path` creation. The `updater`\n * is invoked with one argument: (value).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = { 'a': [{ 'b': { 'c': 3 } }] };\n *\n * _.update(object, 'a[0].b.c', function(n) { return n * n; });\n * console.log(object.a[0].b.c);\n * // => 9\n *\n * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });\n * console.log(object.x[0].y.z);\n * // => 0\n */\n function update(object, path, updater) {\n return object == null ? object : baseUpdate(object, path, castFunction(updater));\n }\n\n /**\n * This method is like `_.update` except that it accepts `customizer` which is\n * invoked to produce the objects of `path`. If `customizer` returns `undefined`\n * path creation is handled by the method instead. The `customizer` is invoked\n * with three arguments: (nsValue, key, nsObject).\n *\n * **Note:** This method mutates `object`.\n *\n * @static\n * @memberOf _\n * @since 4.6.0\n * @category Object\n * @param {Object} object The object to modify.\n * @param {Array|string} path The path of the property to set.\n * @param {Function} updater The function to produce the updated value.\n * @param {Function} [customizer] The function to customize assigned values.\n * @returns {Object} Returns `object`.\n * @example\n *\n * var object = {};\n *\n * _.updateWith(object, '[0][1]', _.constant('a'), Object);\n * // => { '0': { '1': 'a' } }\n */\n function updateWith(object, path, updater, customizer) {\n customizer = typeof customizer == 'function' ? customizer : undefined;\n return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);\n }\n\n /**\n * Creates an array of the own enumerable string keyed property values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.values(new Foo);\n * // => [1, 2] (iteration order is not guaranteed)\n *\n * _.values('hi');\n * // => ['h', 'i']\n */\n function values(object) {\n return object == null ? [] : baseValues(object, keys(object));\n }\n\n /**\n * Creates an array of the own and inherited enumerable string keyed property\n * values of `object`.\n *\n * **Note:** Non-object values are coerced to objects.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category Object\n * @param {Object} object The object to query.\n * @returns {Array} Returns the array of property values.\n * @example\n *\n * function Foo() {\n * this.a = 1;\n * this.b = 2;\n * }\n *\n * Foo.prototype.c = 3;\n *\n * _.valuesIn(new Foo);\n * // => [1, 2, 3] (iteration order is not guaranteed)\n */\n function valuesIn(object) {\n return object == null ? [] : baseValues(object, keysIn(object));\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Clamps `number` within the inclusive `lower` and `upper` bounds.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Number\n * @param {number} number The number to clamp.\n * @param {number} [lower] The lower bound.\n * @param {number} upper The upper bound.\n * @returns {number} Returns the clamped number.\n * @example\n *\n * _.clamp(-10, -5, 5);\n * // => -5\n *\n * _.clamp(10, -5, 5);\n * // => 5\n */\n function clamp(number, lower, upper) {\n if (upper === undefined) {\n upper = lower;\n lower = undefined;\n }\n if (upper !== undefined) {\n upper = toNumber(upper);\n upper = upper === upper ? upper : 0;\n }\n if (lower !== undefined) {\n lower = toNumber(lower);\n lower = lower === lower ? lower : 0;\n }\n return baseClamp(toNumber(number), lower, upper);\n }\n\n /**\n * Checks if `n` is between `start` and up to, but not including, `end`. If\n * `end` is not specified, it's set to `start` with `start` then set to `0`.\n * If `start` is greater than `end` the params are swapped to support\n * negative ranges.\n *\n * @static\n * @memberOf _\n * @since 3.3.0\n * @category Number\n * @param {number} number The number to check.\n * @param {number} [start=0] The start of the range.\n * @param {number} end The end of the range.\n * @returns {boolean} Returns `true` if `number` is in the range, else `false`.\n * @see _.range, _.rangeRight\n * @example\n *\n * _.inRange(3, 2, 4);\n * // => true\n *\n * _.inRange(4, 8);\n * // => true\n *\n * _.inRange(4, 2);\n * // => false\n *\n * _.inRange(2, 2);\n * // => false\n *\n * _.inRange(1.2, 2);\n * // => true\n *\n * _.inRange(5.2, 4);\n * // => false\n *\n * _.inRange(-3, -2, -6);\n * // => true\n */\n function inRange(number, start, end) {\n start = toFinite(start);\n if (end === undefined) {\n end = start;\n start = 0;\n } else {\n end = toFinite(end);\n }\n number = toNumber(number);\n return baseInRange(number, start, end);\n }\n\n /**\n * Produces a random number between the inclusive `lower` and `upper` bounds.\n * If only one argument is provided a number between `0` and the given number\n * is returned. If `floating` is `true`, or either `lower` or `upper` are\n * floats, a floating-point number is returned instead of an integer.\n *\n * **Note:** JavaScript follows the IEEE-754 standard for resolving\n * floating-point values which can produce unexpected results.\n *\n * @static\n * @memberOf _\n * @since 0.7.0\n * @category Number\n * @param {number} [lower=0] The lower bound.\n * @param {number} [upper=1] The upper bound.\n * @param {boolean} [floating] Specify returning a floating-point number.\n * @returns {number} Returns the random number.\n * @example\n *\n * _.random(0, 5);\n * // => an integer between 0 and 5\n *\n * _.random(5);\n * // => also an integer between 0 and 5\n *\n * _.random(5, true);\n * // => a floating-point number between 0 and 5\n *\n * _.random(1.2, 5.2);\n * // => a floating-point number between 1.2 and 5.2\n */\n function random(lower, upper, floating) {\n if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {\n upper = floating = undefined;\n }\n if (floating === undefined) {\n if (typeof upper == 'boolean') {\n floating = upper;\n upper = undefined;\n }\n else if (typeof lower == 'boolean') {\n floating = lower;\n lower = undefined;\n }\n }\n if (lower === undefined && upper === undefined) {\n lower = 0;\n upper = 1;\n }\n else {\n lower = toFinite(lower);\n if (upper === undefined) {\n upper = lower;\n lower = 0;\n } else {\n upper = toFinite(upper);\n }\n }\n if (lower > upper) {\n var temp = lower;\n lower = upper;\n upper = temp;\n }\n if (floating || lower % 1 || upper % 1) {\n var rand = nativeRandom();\n return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);\n }\n return baseRandom(lower, upper);\n }\n\n /*------------------------------------------------------------------------*/\n\n /**\n * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the camel cased string.\n * @example\n *\n * _.camelCase('Foo Bar');\n * // => 'fooBar'\n *\n * _.camelCase('--foo-bar--');\n * // => 'fooBar'\n *\n * _.camelCase('__FOO_BAR__');\n * // => 'fooBar'\n */\n var camelCase = createCompounder(function(result, word, index) {\n word = word.toLowerCase();\n return result + (index ? capitalize(word) : word);\n });\n\n /**\n * Converts the first character of `string` to upper case and the remaining\n * to lower case.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to capitalize.\n * @returns {string} Returns the capitalized string.\n * @example\n *\n * _.capitalize('FRED');\n * // => 'Fred'\n */\n function capitalize(string) {\n return upperFirst(toString(string).toLowerCase());\n }\n\n /**\n * Deburrs `string` by converting\n * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)\n * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)\n * letters to basic Latin letters and removing\n * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to deburr.\n * @returns {string} Returns the deburred string.\n * @example\n *\n * _.deburr('déjà vu');\n * // => 'deja vu'\n */\n function deburr(string) {\n string = toString(string);\n return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');\n }\n\n /**\n * Checks if `string` ends with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=string.length] The position to search up to.\n * @returns {boolean} Returns `true` if `string` ends with `target`,\n * else `false`.\n * @example\n *\n * _.endsWith('abc', 'c');\n * // => true\n *\n * _.endsWith('abc', 'b');\n * // => false\n *\n * _.endsWith('abc', 'b', 2);\n * // => true\n */\n function endsWith(string, target, position) {\n string = toString(string);\n target = baseToString(target);\n\n var length = string.length;\n position = position === undefined\n ? length\n : baseClamp(toInteger(position), 0, length);\n\n var end = position;\n position -= target.length;\n return position >= 0 && string.slice(position, end) == target;\n }\n\n /**\n * Converts the characters \"&\", \"<\", \">\", '\"', and \"'\" in `string` to their\n * corresponding HTML entities.\n *\n * **Note:** No other characters are escaped. To escape additional\n * characters use a third-party library like [_he_](https://mths.be/he).\n *\n * Though the \">\" character is escaped for symmetry, characters like\n * \">\" and \"/\" don't need escaping in HTML and have no special meaning\n * unless they're part of a tag or unquoted attribute value. See\n * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)\n * (under \"semi-related fun fact\") for more details.\n *\n * When working with HTML you should always\n * [quote attribute values](http://wonko.com/post/html-escaping) to reduce\n * XSS vectors.\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escape('fred, barney, & pebbles');\n * // => 'fred, barney, & pebbles'\n */\n function escape(string) {\n string = toString(string);\n return (string && reHasUnescapedHtml.test(string))\n ? string.replace(reUnescapedHtml, escapeHtmlChar)\n : string;\n }\n\n /**\n * Escapes the `RegExp` special characters \"^\", \"$\", \"\\\", \".\", \"*\", \"+\",\n * \"?\", \"(\", \")\", \"[\", \"]\", \"{\", \"}\", and \"|\" in `string`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to escape.\n * @returns {string} Returns the escaped string.\n * @example\n *\n * _.escapeRegExp('[lodash](https://lodash.com/)');\n * // => '\\[lodash\\]\\(https://lodash\\.com/\\)'\n */\n function escapeRegExp(string) {\n string = toString(string);\n return (string && reHasRegExpChar.test(string))\n ? string.replace(reRegExpChar, '\\\\$&')\n : string;\n }\n\n /**\n * Converts `string` to\n * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the kebab cased string.\n * @example\n *\n * _.kebabCase('Foo Bar');\n * // => 'foo-bar'\n *\n * _.kebabCase('fooBar');\n * // => 'foo-bar'\n *\n * _.kebabCase('__FOO_BAR__');\n * // => 'foo-bar'\n */\n var kebabCase = createCompounder(function(result, word, index) {\n return result + (index ? '-' : '') + word.toLowerCase();\n });\n\n /**\n * Converts `string`, as space separated words, to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the lower cased string.\n * @example\n *\n * _.lowerCase('--Foo-Bar--');\n * // => 'foo bar'\n *\n * _.lowerCase('fooBar');\n * // => 'foo bar'\n *\n * _.lowerCase('__FOO_BAR__');\n * // => 'foo bar'\n */\n var lowerCase = createCompounder(function(result, word, index) {\n return result + (index ? ' ' : '') + word.toLowerCase();\n });\n\n /**\n * Converts the first character of `string` to lower case.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the converted string.\n * @example\n *\n * _.lowerFirst('Fred');\n * // => 'fred'\n *\n * _.lowerFirst('FRED');\n * // => 'fRED'\n */\n var lowerFirst = createCaseFirst('toLowerCase');\n\n /**\n * Pads `string` on the left and right sides if it's shorter than `length`.\n * Padding characters are truncated if they can't be evenly divided by `length`.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.pad('abc', 8);\n * // => ' abc '\n *\n * _.pad('abc', 8, '_-');\n * // => '_-abc_-_'\n *\n * _.pad('abc', 3);\n * // => 'abc'\n */\n function pad(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n if (!length || strLength >= length) {\n return string;\n }\n var mid = (length - strLength) / 2;\n return (\n createPadding(nativeFloor(mid), chars) +\n string +\n createPadding(nativeCeil(mid), chars)\n );\n }\n\n /**\n * Pads `string` on the right side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padEnd('abc', 6);\n * // => 'abc '\n *\n * _.padEnd('abc', 6, '_-');\n * // => 'abc_-_'\n *\n * _.padEnd('abc', 3);\n * // => 'abc'\n */\n function padEnd(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n return (length && strLength < length)\n ? (string + createPadding(length - strLength, chars))\n : string;\n }\n\n /**\n * Pads `string` on the left side if it's shorter than `length`. Padding\n * characters are truncated if they exceed `length`.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to pad.\n * @param {number} [length=0] The padding length.\n * @param {string} [chars=' '] The string used as padding.\n * @returns {string} Returns the padded string.\n * @example\n *\n * _.padStart('abc', 6);\n * // => ' abc'\n *\n * _.padStart('abc', 6, '_-');\n * // => '_-_abc'\n *\n * _.padStart('abc', 3);\n * // => 'abc'\n */\n function padStart(string, length, chars) {\n string = toString(string);\n length = toInteger(length);\n\n var strLength = length ? stringSize(string) : 0;\n return (length && strLength < length)\n ? (createPadding(length - strLength, chars) + string)\n : string;\n }\n\n /**\n * Converts `string` to an integer of the specified radix. If `radix` is\n * `undefined` or `0`, a `radix` of `10` is used unless `value` is a\n * hexadecimal, in which case a `radix` of `16` is used.\n *\n * **Note:** This method aligns with the\n * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.\n *\n * @static\n * @memberOf _\n * @since 1.1.0\n * @category String\n * @param {string} string The string to convert.\n * @param {number} [radix=10] The radix to interpret `value` by.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {number} Returns the converted integer.\n * @example\n *\n * _.parseInt('08');\n * // => 8\n *\n * _.map(['6', '08', '10'], _.parseInt);\n * // => [6, 8, 10]\n */\n function parseInt(string, radix, guard) {\n if (guard || radix == null) {\n radix = 0;\n } else if (radix) {\n radix = +radix;\n }\n return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);\n }\n\n /**\n * Repeats the given string `n` times.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to repeat.\n * @param {number} [n=1] The number of times to repeat the string.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {string} Returns the repeated string.\n * @example\n *\n * _.repeat('*', 3);\n * // => '***'\n *\n * _.repeat('abc', 2);\n * // => 'abcabc'\n *\n * _.repeat('abc', 0);\n * // => ''\n */\n function repeat(string, n, guard) {\n if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {\n n = 1;\n } else {\n n = toInteger(n);\n }\n return baseRepeat(toString(string), n);\n }\n\n /**\n * Replaces matches for `pattern` in `string` with `replacement`.\n *\n * **Note:** This method is based on\n * [`String#replace`](https://mdn.io/String/replace).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to modify.\n * @param {RegExp|string} pattern The pattern to replace.\n * @param {Function|string} replacement The match replacement.\n * @returns {string} Returns the modified string.\n * @example\n *\n * _.replace('Hi Fred', 'Fred', 'Barney');\n * // => 'Hi Barney'\n */\n function replace() {\n var args = arguments,\n string = toString(args[0]);\n\n return args.length < 3 ? string : string.replace(args[1], args[2]);\n }\n\n /**\n * Converts `string` to\n * [snake case](https://en.wikipedia.org/wiki/Snake_case).\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the snake cased string.\n * @example\n *\n * _.snakeCase('Foo Bar');\n * // => 'foo_bar'\n *\n * _.snakeCase('fooBar');\n * // => 'foo_bar'\n *\n * _.snakeCase('--FOO-BAR--');\n * // => 'foo_bar'\n */\n var snakeCase = createCompounder(function(result, word, index) {\n return result + (index ? '_' : '') + word.toLowerCase();\n });\n\n /**\n * Splits `string` by `separator`.\n *\n * **Note:** This method is based on\n * [`String#split`](https://mdn.io/String/split).\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category String\n * @param {string} [string=''] The string to split.\n * @param {RegExp|string} separator The separator pattern to split by.\n * @param {number} [limit] The length to truncate results to.\n * @returns {Array} Returns the string segments.\n * @example\n *\n * _.split('a-b-c', '-', 2);\n * // => ['a', 'b']\n */\n function split(string, separator, limit) {\n if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {\n separator = limit = undefined;\n }\n limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;\n if (!limit) {\n return [];\n }\n string = toString(string);\n if (string && (\n typeof separator == 'string' ||\n (separator != null && !isRegExp(separator))\n )) {\n separator = baseToString(separator);\n if (!separator && hasUnicode(string)) {\n return castSlice(stringToArray(string), 0, limit);\n }\n }\n return string.split(separator, limit);\n }\n\n /**\n * Converts `string` to\n * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).\n *\n * @static\n * @memberOf _\n * @since 3.1.0\n * @category String\n * @param {string} [string=''] The string to convert.\n * @returns {string} Returns the start cased string.\n * @example\n *\n * _.startCase('--foo-bar--');\n * // => 'Foo Bar'\n *\n * _.startCase('fooBar');\n * // => 'Foo Bar'\n *\n * _.startCase('__FOO_BAR__');\n * // => 'FOO BAR'\n */\n var startCase = createCompounder(function(result, word, index) {\n return result + (index ? ' ' : '') + upperFirst(word);\n });\n\n /**\n * Checks if `string` starts with the given target string.\n *\n * @static\n * @memberOf _\n * @since 3.0.0\n * @category String\n * @param {string} [string=''] The string to inspect.\n * @param {string} [target] The string to search for.\n * @param {number} [position=0] The position to search from.\n * @returns {boolean} Returns `true` if `string` starts with `target`,\n * else `false`.\n * @example\n *\n * _.startsWith('abc', 'a');\n * // => true\n *\n * _.startsWith('abc', 'b');\n * // => false\n *\n * _.startsWith('abc', 'b', 1);\n * // => true\n */\n function startsWith(string, target, position) {\n string = toString(string);\n position = position == null\n ? 0\n : baseClamp(toInteger(position), 0, string.length);\n\n target = baseToString(target);\n return string.slice(position, position + target.length) == target;\n }\n\n /**\n * Creates a compiled template function that can interpolate data properties\n * in \"interpolate\" delimiters, HTML-escape interpolated data properties in\n * \"escape\" delimiters, and execute JavaScript in \"evaluate\" delimiters. Data\n * properties may be accessed as free variables in the template. If a setting\n * object is given, it takes precedence over `_.templateSettings` values.\n *\n * **Note:** In the development build `_.template` utilizes\n * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)\n * for easier debugging.\n *\n * For more information on precompiling templates see\n * [lodash's custom builds documentation](https://lodash.com/custom-builds).\n *\n * For more information on Chrome extension sandboxes see\n * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).\n *\n * @static\n * @since 0.1.0\n * @memberOf _\n * @category String\n * @param {string} [string=''] The template string.\n * @param {Object} [options={}] The options object.\n * @param {RegExp} [options.escape=_.templateSettings.escape]\n * The HTML \"escape\" delimiter.\n * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]\n * The \"evaluate\" delimiter.\n * @param {Object} [options.imports=_.templateSettings.imports]\n * An object to import into the template as free variables.\n * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]\n * The \"interpolate\" delimiter.\n * @param {string} [options.sourceURL='lodash.templateSources[n]']\n * The sourceURL of the compiled template.\n * @param {string} [options.variable='obj']\n * The data object variable name.\n * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.\n * @returns {Function} Returns the compiled template function.\n * @example\n *\n * // Use the \"interpolate\" delimiter to create a compiled template.\n * var compiled = _.template('hello <%= user %>!');\n * compiled({ 'user': 'fred' });\n * // => 'hello fred!'\n *\n * // Use the HTML \"escape\" delimiter to escape data property values.\n * var compiled = _.template('<%- value %>');\n * compiled({ 'value': '