vendor/assets/javascripts/webshims/shims/es5.js in webshims-rails-1.14.1 vs vendor/assets/javascripts/webshims/shims/es5.js in webshims-rails-1.14.3
- old
+ new
@@ -3,300 +3,279 @@
(function () {
setTimeout(function(){
webshims.isReady('es5', true);
});
-/**
- * Brings an environment as close to ECMAScript 5 compliance
- * as is possible with the facilities of erstwhile engines.
- *
- * Annotated ES5: http://es5.github.com/ (specific links below)
- * ES5 Spec: http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf
- * Required reading: http://javascriptweblog.wordpress.com/2011/12/05/extending-javascript-natives/
- */
+ /**
+ * Brings an environment as close to ECMAScript 5 compliance
+ * as is possible with the facilities of erstwhile engines.
+ *
+ * Annotated ES5: http://es5.github.com/ (specific links below)
+ * ES5 Spec: http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf
+ * Required reading: http://javascriptweblog.wordpress.com/2011/12/05/extending-javascript-natives/
+ */
+// Shortcut to an often accessed properties, in order to avoid multiple
+// dereference that costs universally.
+ var call = Function.prototype.call;
+ var prototypeOfArray = Array.prototype;
+ var prototypeOfObject = Object.prototype;
+ var _Array_slice_ = prototypeOfArray.slice;
+ var array_splice = Array.prototype.splice;
+ var array_push = Array.prototype.push;
+ var array_unshift = Array.prototype.unshift;
+
+// Having a toString local variable name breaks in Opera so use _toString.
+ var _toString = prototypeOfObject.toString;
+
+ var isFunction = function (val) {
+ return prototypeOfObject.toString.call(val) === '[object Function]';
+ };
+ var isRegex = function (val) {
+ return prototypeOfObject.toString.call(val) === '[object RegExp]';
+ };
+ var isArray = function isArray(obj) {
+ return _toString.call(obj) === "[object Array]";
+ };
+ var isArguments = function isArguments(value) {
+ var str = _toString.call(value);
+ var isArgs = str === '[object Arguments]';
+ if (!isArgs) {
+ isArgs = !isArray(str)
+ && value !== null
+ && typeof value === 'object'
+ && typeof value.length === 'number'
+ && value.length >= 0
+ && isFunction(value.callee);
+ }
+ return isArgs;
+ };
+
//
// Function
// ========
//
// ES-5 15.3.4.5
// http://es5.github.com/#x15.3.4.5
-function Empty() {}
+ function Empty() {}
-if (!Function.prototype.bind) {
- Function.prototype.bind = function bind(that) { // .length is 1
- // 1. Let Target be the this value.
- var target = this;
- // 2. If IsCallable(Target) is false, throw a TypeError exception.
- if (typeof target != "function") {
- throw new TypeError("Function.prototype.bind called on incompatible " + target);
- }
- // 3. Let A be a new (possibly empty) internal list of all of the
- // argument values provided after thisArg (arg1, arg2 etc), in order.
- // XXX slicedArgs will stand in for "A" if used
- var args = _Array_slice_.call(arguments, 1); // for normal call
- // 4. Let F be a new native ECMAScript object.
- // 11. Set the [[Prototype]] internal property of F to the standard
- // built-in Function prototype object as specified in 15.3.3.1.
- // 12. Set the [[Call]] internal property of F as described in
- // 15.3.4.5.1.
- // 13. Set the [[Construct]] internal property of F as described in
- // 15.3.4.5.2.
- // 14. Set the [[HasInstance]] internal property of F as described in
- // 15.3.4.5.3.
- var bound = function () {
+ if (!Function.prototype.bind) {
+ Function.prototype.bind = function bind(that) { // .length is 1
+ // 1. Let Target be the this value.
+ var target = this;
+ // 2. If IsCallable(Target) is false, throw a TypeError exception.
+ if (!isFunction(target)) {
+ throw new TypeError("Function.prototype.bind called on incompatible " + target);
+ }
+ // 3. Let A be a new (possibly empty) internal list of all of the
+ // argument values provided after thisArg (arg1, arg2 etc), in order.
+ // XXX slicedArgs will stand in for "A" if used
+ var args = _Array_slice_.call(arguments, 1); // for normal call
+ // 4. Let F be a new native ECMAScript object.
+ // 11. Set the [[Prototype]] internal property of F to the standard
+ // built-in Function prototype object as specified in 15.3.3.1.
+ // 12. Set the [[Call]] internal property of F as described in
+ // 15.3.4.5.1.
+ // 13. Set the [[Construct]] internal property of F as described in
+ // 15.3.4.5.2.
+ // 14. Set the [[HasInstance]] internal property of F as described in
+ // 15.3.4.5.3.
+ var binder = function () {
- if (this instanceof bound) {
- // 15.3.4.5.2 [[Construct]]
- // When the [[Construct]] internal method of a function object,
- // F that was created using the bind function is called with a
- // list of arguments ExtraArgs, the following steps are taken:
- // 1. Let target be the value of F's [[TargetFunction]]
- // internal property.
- // 2. If target has no [[Construct]] internal method, a
- // TypeError exception is thrown.
- // 3. Let boundArgs be the value of F's [[BoundArgs]] internal
- // property.
- // 4. Let args be a new list containing the same values as the
- // list boundArgs in the same order followed by the same
- // values as the list ExtraArgs in the same order.
- // 5. Return the result of calling the [[Construct]] internal
- // method of target providing args as the arguments.
+ if (this instanceof bound) {
+ // 15.3.4.5.2 [[Construct]]
+ // When the [[Construct]] internal method of a function object,
+ // F that was created using the bind function is called with a
+ // list of arguments ExtraArgs, the following steps are taken:
+ // 1. Let target be the value of F's [[TargetFunction]]
+ // internal property.
+ // 2. If target has no [[Construct]] internal method, a
+ // TypeError exception is thrown.
+ // 3. Let boundArgs be the value of F's [[BoundArgs]] internal
+ // property.
+ // 4. Let args be a new list containing the same values as the
+ // list boundArgs in the same order followed by the same
+ // values as the list ExtraArgs in the same order.
+ // 5. Return the result of calling the [[Construct]] internal
+ // method of target providing args as the arguments.
- var result = target.apply(
- this,
- args.concat(_Array_slice_.call(arguments))
- );
- if (Object(result) === result) {
- return result;
- }
- return this;
+ var result = target.apply(
+ this,
+ args.concat(_Array_slice_.call(arguments))
+ );
+ if (Object(result) === result) {
+ return result;
+ }
+ return this;
- } else {
- // 15.3.4.5.1 [[Call]]
- // When the [[Call]] internal method of a function object, F,
- // which was created using the bind function is called with a
- // this value and a list of arguments ExtraArgs, the following
- // steps are taken:
- // 1. Let boundArgs be the value of F's [[BoundArgs]] internal
- // property.
- // 2. Let boundThis be the value of F's [[BoundThis]] internal
- // property.
- // 3. Let target be the value of F's [[TargetFunction]] internal
- // property.
- // 4. Let args be a new list containing the same values as the
- // list boundArgs in the same order followed by the same
- // values as the list ExtraArgs in the same order.
- // 5. Return the result of calling the [[Call]] internal method
- // of target providing boundThis as the this value and
- // providing args as the arguments.
+ } else {
+ // 15.3.4.5.1 [[Call]]
+ // When the [[Call]] internal method of a function object, F,
+ // which was created using the bind function is called with a
+ // this value and a list of arguments ExtraArgs, the following
+ // steps are taken:
+ // 1. Let boundArgs be the value of F's [[BoundArgs]] internal
+ // property.
+ // 2. Let boundThis be the value of F's [[BoundThis]] internal
+ // property.
+ // 3. Let target be the value of F's [[TargetFunction]] internal
+ // property.
+ // 4. Let args be a new list containing the same values as the
+ // list boundArgs in the same order followed by the same
+ // values as the list ExtraArgs in the same order.
+ // 5. Return the result of calling the [[Call]] internal method
+ // of target providing boundThis as the this value and
+ // providing args as the arguments.
- // equiv: target.call(this, ...boundArgs, ...args)
- return target.apply(
- that,
- args.concat(_Array_slice_.call(arguments))
- );
+ // equiv: target.call(this, ...boundArgs, ...args)
+ return target.apply(
+ that,
+ args.concat(_Array_slice_.call(arguments))
+ );
- }
+ }
- };
- if(target.prototype) {
- Empty.prototype = target.prototype;
- bound.prototype = new Empty();
- // Clean up dangling references.
- Empty.prototype = null;
- }
- // XXX bound.length is never writable, so don't even try
- //
- // 15. If the [[Class]] internal property of Target is "Function", then
- // a. Let L be the length property of Target minus the length of A.
- // b. Set the length own property of F to either 0 or L, whichever is
- // larger.
- // 16. Else set the length own property of F to 0.
- // 17. Set the attributes of the length own property of F to the values
- // specified in 15.3.5.1.
+ };
- // TODO
- // 18. Set the [[Extensible]] internal property of F to true.
+ // 15. If the [[Class]] internal property of Target is "Function", then
+ // a. Let L be the length property of Target minus the length of A.
+ // b. Set the length own property of F to either 0 or L, whichever is
+ // larger.
+ // 16. Else set the length own property of F to 0.
- // TODO
- // 19. Let thrower be the [[ThrowTypeError]] function Object (13.2.3).
- // 20. Call the [[DefineOwnProperty]] internal method of F with
- // arguments "caller", PropertyDescriptor {[[Get]]: thrower, [[Set]]:
- // thrower, [[Enumerable]]: false, [[Configurable]]: false}, and
- // false.
- // 21. Call the [[DefineOwnProperty]] internal method of F with
- // arguments "arguments", PropertyDescriptor {[[Get]]: thrower,
- // [[Set]]: thrower, [[Enumerable]]: false, [[Configurable]]: false},
- // and false.
+ var boundLength = Math.max(0, target.length - args.length);
- // TODO
- // NOTE Function objects created using Function.prototype.bind do not
- // have a prototype property or the [[Code]], [[FormalParameters]], and
- // [[Scope]] internal properties.
- // XXX can't delete prototype in pure-js.
+ // 17. Set the attributes of the length own property of F to the values
+ // specified in 15.3.5.1.
+ var boundArgs = [];
+ for (var i = 0; i < boundLength; i++) {
+ boundArgs.push("$" + i);
+ }
- // 22. Return F.
- return bound;
- };
-}
+ // XXX Build a dynamic function with desired amount of arguments is the only
+ // way to set the length property of a function.
+ // In environments where Content Security Policies enabled (Chrome extensions,
+ // for ex.) all use of eval or Function costructor throws an exception.
+ // However in all of these environments Function.prototype.bind exists
+ // and so this code will never be executed.
+ var bound = Function("binder", "return function (" + boundArgs.join(",") + "){return binder.apply(this,arguments)}")(binder);
-// Shortcut to an often accessed properties, in order to avoid multiple
-// dereference that costs universally.
+ if (target.prototype) {
+ Empty.prototype = target.prototype;
+ bound.prototype = new Empty();
+ // Clean up dangling references.
+ Empty.prototype = null;
+ }
+
+ // TODO
+ // 18. Set the [[Extensible]] internal property of F to true.
+
+ // TODO
+ // 19. Let thrower be the [[ThrowTypeError]] function Object (13.2.3).
+ // 20. Call the [[DefineOwnProperty]] internal method of F with
+ // arguments "caller", PropertyDescriptor {[[Get]]: thrower, [[Set]]:
+ // thrower, [[Enumerable]]: false, [[Configurable]]: false}, and
+ // false.
+ // 21. Call the [[DefineOwnProperty]] internal method of F with
+ // arguments "arguments", PropertyDescriptor {[[Get]]: thrower,
+ // [[Set]]: thrower, [[Enumerable]]: false, [[Configurable]]: false},
+ // and false.
+
+ // TODO
+ // NOTE Function objects created using Function.prototype.bind do not
+ // have a prototype property or the [[Code]], [[FormalParameters]], and
+ // [[Scope]] internal properties.
+ // XXX can't delete prototype in pure-js.
+
+ // 22. Return F.
+ return bound;
+ };
+ }
+
// _Please note: Shortcuts are defined after `Function.prototype.bind` as we
// us it in defining shortcuts.
-var call = Function.prototype.call;
-var prototypeOfArray = Array.prototype;
-var prototypeOfObject = Object.prototype;
-var _Array_slice_ = prototypeOfArray.slice;
-// Having a toString local variable name breaks in Opera so use _toString.
-var _toString = call.bind(prototypeOfObject.toString);
-var owns = call.bind(prototypeOfObject.hasOwnProperty);
+ var owns = call.bind(prototypeOfObject.hasOwnProperty);
// If JS engine supports accessors creating shortcuts.
-var defineGetter;
-var defineSetter;
-var lookupGetter;
-var lookupSetter;
-var supportsAccessors;
-if ((supportsAccessors = owns(prototypeOfObject, "__defineGetter__"))) {
- defineGetter = call.bind(prototypeOfObject.__defineGetter__);
- defineSetter = call.bind(prototypeOfObject.__defineSetter__);
- lookupGetter = call.bind(prototypeOfObject.__lookupGetter__);
- lookupSetter = call.bind(prototypeOfObject.__lookupSetter__);
-}
+ var defineGetter;
+ var defineSetter;
+ var lookupGetter;
+ var lookupSetter;
+ var supportsAccessors;
+ if ((supportsAccessors = owns(prototypeOfObject, "__defineGetter__"))) {
+ defineGetter = call.bind(prototypeOfObject.__defineGetter__);
+ defineSetter = call.bind(prototypeOfObject.__defineSetter__);
+ lookupGetter = call.bind(prototypeOfObject.__lookupGetter__);
+ lookupSetter = call.bind(prototypeOfObject.__lookupSetter__);
+ }
//
// Array
// =====
//
// ES5 15.4.4.12
// http://es5.github.com/#x15.4.4.12
-// Default value for second param
-// [bugfix, ielt9, old browsers]
-// IE < 9 bug: [1,2].splice(0).join("") == "" but should be "12"
-if ([1,2].splice(0).length != 2) {
- var array_splice = Array.prototype.splice;
+ var spliceWorksWithEmptyObject = (function () {
+ var obj = {};
+ Array.prototype.splice.call(obj, 0, 0, 1);
+ return obj.length === 1;
+ }());
+ var omittingSecondSpliceArgIsNoop = [1].splice(0).length === 0;
+ var spliceNoopReturnsEmptyArray = (function () {
+ var a = [1, 2];
+ var result = a.splice();
+ return a.length === 2 && isArray(result) && result.length === 0;
+ }());
+ if (spliceNoopReturnsEmptyArray) {
+ // Safari 5.0 bug where .split() returns undefined
+ Array.prototype.splice = function splice(start, deleteCount) {
+ if (arguments.length === 0) { return []; }
+ else { return array_splice.apply(this, arguments); }
+ };
+ }
+ if (!omittingSecondSpliceArgIsNoop || !spliceWorksWithEmptyObject) {
+ Array.prototype.splice = function splice(start, deleteCount) {
+ if (arguments.length === 0) { return []; }
+ var args = arguments;
+ this.length = Math.max(toInteger(this.length), 0);
+ if (arguments.length > 0 && typeof deleteCount !== 'number') {
+ args = _Array_slice_.call(arguments);
+ if (args.length < 2) { args.push(toInteger(deleteCount)); }
+ else { args[1] = toInteger(deleteCount); }
+ }
+ return array_splice.apply(this, args);
+ };
+ }
- if(function() { // test IE < 9 to splice bug - see issue #138
- function makeArray(l) {
- var a = [];
- while (l--) {
- a.unshift(l)
- }
- return a
- }
-
- var array = []
- , lengthBefore
- ;
-
- array.splice.bind(array, 0, 0).apply(null, makeArray(20));
- array.splice.bind(array, 0, 0).apply(null, makeArray(26));
-
- lengthBefore = array.length; //20
- array.splice(5, 0, "XXX"); // add one element
-
- if(lengthBefore + 1 == array.length) {
- return true;// has right splice implementation without bugs
- }
- // else {
- // IE8 bug
- // }
- }()) {//IE 6/7
- Array.prototype.splice = function(start, deleteCount) {
- if (!arguments.length) {
- return [];
- } else {
- return array_splice.apply(this, [
- start === void 0 ? 0 : start,
- deleteCount === void 0 ? (this.length - start) : deleteCount
- ].concat(_Array_slice_.call(arguments, 2)))
- }
- };
- }
- else {//IE8
- Array.prototype.splice = function(start, deleteCount) {
- var result
- , args = _Array_slice_.call(arguments, 2)
- , addElementsCount = args.length
- ;
-
- if(!arguments.length) {
- return [];
- }
-
- if(start === void 0) { // default
- start = 0;
- }
- if(deleteCount === void 0) { // default
- deleteCount = this.length - start;
- }
-
- if(addElementsCount > 0) {
- if(deleteCount <= 0) {
- if(start == this.length) { // tiny optimisation #1
- this.push.apply(this, args);
- return [];
- }
-
- if(start == 0) { // tiny optimisation #2
- this.unshift.apply(this, args);
- return [];
- }
- }
-
- // Array.prototype.splice implementation
- result = _Array_slice_.call(this, start, start + deleteCount);// delete part
- args.push.apply(args, _Array_slice_.call(this, start + deleteCount, this.length));// right part
- args.unshift.apply(args, _Array_slice_.call(this, 0, start));// left part
-
- // delete all items from this array and replace it to 'left part' + _Array_slice_.call(arguments, 2) + 'right part'
- args.unshift(0, this.length);
-
- array_splice.apply(this, args);
-
- return result;
- }
-
- return array_splice.call(this, start, deleteCount);
- }
-
- }
-}
-
// ES5 15.4.4.12
// http://es5.github.com/#x15.4.4.13
// Return len+argCount.
// [bugfix, ielt8]
-// IE < 8 bug: [].unshift(0) == undefined but should be "1"
-if ([].unshift(0) != 1) {
- var array_unshift = Array.prototype.unshift;
- Array.prototype.unshift = function() {
- array_unshift.apply(this, arguments);
- return this.length;
- };
-}
+// IE < 8 bug: [].unshift(0) === undefined but should be "1"
+ if ([].unshift(0) !== 1) {
+ Array.prototype.unshift = function () {
+ array_unshift.apply(this, arguments);
+ return this.length;
+ };
+ }
// ES5 15.4.3.2
// http://es5.github.com/#x15.4.3.2
// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/isArray
-if (!Array.isArray) {
- Array.isArray = function isArray(obj) {
- return _toString(obj) == "[object Array]";
- };
-}
+ if (!Array.isArray) {
+ Array.isArray = isArray;
+ }
// The IsCallable() check in the Array functions
// has been replaced with a strict check on the
// internal class of the object to trap cases where
// the provided function was actually a regular
// expression literal, which in V8 and
-// JavaScriptCore is a typeof "function". Only in
+// JavaScriptCore is a typeof "function". Only in
// V8 are regular expression literals permitted as
// reduce parameters, so it is desirable in the
// general case for the shim to match the more
// strict and common behavior of rejecting regular
// expressions.
@@ -305,361 +284,406 @@
// http://es5.github.com/#x15.4.4.18
// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/array/forEach
// Check failure of by-index access of string characters (IE < 9)
// and failure of `0 in boxedString` (Rhino)
-var boxedString = Object("a"),
- splitString = boxedString[0] != "a" || !(0 in boxedString);
+ var boxedString = Object("a");
+ var splitString = boxedString[0] !== "a" || !(0 in boxedString);
-if (!Array.prototype.forEach) {
- Array.prototype.forEach = function forEach(fun /*, thisp*/) {
- var object = toObject(this),
- self = splitString && _toString(this) == "[object String]" ?
- this.split("") :
- object,
- thisp = arguments[1],
- i = -1,
- length = self.length >>> 0;
+ var properlyBoxesContext = function properlyBoxed(method) {
+ // Check node 0.6.21 bug where third parameter is not boxed
+ var properlyBoxesNonStrict = true;
+ var properlyBoxesStrict = true;
+ if (method) {
+ method.call('foo', function (_, __, context) {
+ if (typeof context !== 'object') { properlyBoxesNonStrict = false; }
+ });
- // If no callback function or if callback is not a callable function
- if (_toString(fun) != "[object Function]") {
- throw new TypeError(); // TODO message
- }
+ method.call([1], function () {
+ 'use strict';
+ properlyBoxesStrict = typeof this === 'string';
+ }, 'x');
+ }
+ return !!method && properlyBoxesNonStrict && properlyBoxesStrict;
+ };
- while (++i < length) {
- if (i in self) {
- // Invoke the callback function with call, passing arguments:
- // context, property value, property key, thisArg object
- // context
- fun.call(thisp, self[i], i, object);
- }
- }
- };
-}
+ if (!Array.prototype.forEach || !properlyBoxesContext(Array.prototype.forEach)) {
+ Array.prototype.forEach = function forEach(fun /*, thisp*/) {
+ var object = toObject(this),
+ self = splitString && _toString.call(this) === "[object String]" ?
+ this.split("") :
+ object,
+ thisp = arguments[1],
+ i = -1,
+ length = self.length >>> 0;
+ // If no callback function or if callback is not a callable function
+ if (!isFunction(fun)) {
+ throw new TypeError(); // TODO message
+ }
+
+ while (++i < length) {
+ if (i in self) {
+ // Invoke the callback function with call, passing arguments:
+ // context, property value, property key, thisArg object
+ // context
+ fun.call(thisp, self[i], i, object);
+ }
+ }
+ };
+ }
+
// ES5 15.4.4.19
// http://es5.github.com/#x15.4.4.19
// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/map
-if (!Array.prototype.map) {
- Array.prototype.map = function map(fun /*, thisp*/) {
- var object = toObject(this),
- self = splitString && _toString(this) == "[object String]" ?
- this.split("") :
- object,
- length = self.length >>> 0,
- result = Array(length),
- thisp = arguments[1];
+ if (!Array.prototype.map || !properlyBoxesContext(Array.prototype.map)) {
+ Array.prototype.map = function map(fun /*, thisp*/) {
+ var object = toObject(this),
+ self = splitString && _toString.call(this) === "[object String]" ?
+ this.split("") :
+ object,
+ length = self.length >>> 0,
+ result = Array(length),
+ thisp = arguments[1];
- // If no callback function or if callback is not a callable function
- if (_toString(fun) != "[object Function]") {
- throw new TypeError(fun + " is not a function");
- }
+ // If no callback function or if callback is not a callable function
+ if (!isFunction(fun)) {
+ throw new TypeError(fun + " is not a function");
+ }
- for (var i = 0; i < length; i++) {
- if (i in self)
- result[i] = fun.call(thisp, self[i], i, object);
- }
- return result;
- };
-}
+ for (var i = 0; i < length; i++) {
+ if (i in self) {
+ result[i] = fun.call(thisp, self[i], i, object);
+ }
+ }
+ return result;
+ };
+ }
// ES5 15.4.4.20
// http://es5.github.com/#x15.4.4.20
// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/filter
-if (!Array.prototype.filter) {
- Array.prototype.filter = function filter(fun /*, thisp */) {
- var object = toObject(this),
- self = splitString && _toString(this) == "[object String]" ?
- this.split("") :
- object,
- length = self.length >>> 0,
- result = [],
- value,
- thisp = arguments[1];
+ if (!Array.prototype.filter || !properlyBoxesContext(Array.prototype.filter)) {
+ Array.prototype.filter = function filter(fun /*, thisp */) {
+ var object = toObject(this),
+ self = splitString && _toString.call(this) === "[object String]" ?
+ this.split("") :
+ object,
+ length = self.length >>> 0,
+ result = [],
+ value,
+ thisp = arguments[1];
- // If no callback function or if callback is not a callable function
- if (_toString(fun) != "[object Function]") {
- throw new TypeError(fun + " is not a function");
- }
+ // If no callback function or if callback is not a callable function
+ if (!isFunction(fun)) {
+ throw new TypeError(fun + " is not a function");
+ }
- for (var i = 0; i < length; i++) {
- if (i in self) {
- value = self[i];
- if (fun.call(thisp, value, i, object)) {
- result.push(value);
- }
- }
- }
- return result;
- };
-}
+ for (var i = 0; i < length; i++) {
+ if (i in self) {
+ value = self[i];
+ if (fun.call(thisp, value, i, object)) {
+ result.push(value);
+ }
+ }
+ }
+ return result;
+ };
+ }
// ES5 15.4.4.16
// http://es5.github.com/#x15.4.4.16
// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/every
-if (!Array.prototype.every) {
- Array.prototype.every = function every(fun /*, thisp */) {
- var object = toObject(this),
- self = splitString && _toString(this) == "[object String]" ?
- this.split("") :
- object,
- length = self.length >>> 0,
- thisp = arguments[1];
+ if (!Array.prototype.every || !properlyBoxesContext(Array.prototype.every)) {
+ Array.prototype.every = function every(fun /*, thisp */) {
+ var object = toObject(this),
+ self = splitString && _toString.call(this) === "[object String]" ?
+ this.split("") :
+ object,
+ length = self.length >>> 0,
+ thisp = arguments[1];
- // If no callback function or if callback is not a callable function
- if (_toString(fun) != "[object Function]") {
- throw new TypeError(fun + " is not a function");
- }
+ // If no callback function or if callback is not a callable function
+ if (!isFunction(fun)) {
+ throw new TypeError(fun + " is not a function");
+ }
- for (var i = 0; i < length; i++) {
- if (i in self && !fun.call(thisp, self[i], i, object)) {
- return false;
- }
- }
- return true;
- };
-}
+ for (var i = 0; i < length; i++) {
+ if (i in self && !fun.call(thisp, self[i], i, object)) {
+ return false;
+ }
+ }
+ return true;
+ };
+ }
// ES5 15.4.4.17
// http://es5.github.com/#x15.4.4.17
// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/some
-if (!Array.prototype.some) {
- Array.prototype.some = function some(fun /*, thisp */) {
- var object = toObject(this),
- self = splitString && _toString(this) == "[object String]" ?
- this.split("") :
- object,
- length = self.length >>> 0,
- thisp = arguments[1];
+ if (!Array.prototype.some || !properlyBoxesContext(Array.prototype.some)) {
+ Array.prototype.some = function some(fun /*, thisp */) {
+ var object = toObject(this),
+ self = splitString && _toString.call(this) === "[object String]" ?
+ this.split("") :
+ object,
+ length = self.length >>> 0,
+ thisp = arguments[1];
- // If no callback function or if callback is not a callable function
- if (_toString(fun) != "[object Function]") {
- throw new TypeError(fun + " is not a function");
- }
+ // If no callback function or if callback is not a callable function
+ if (!isFunction(fun)) {
+ throw new TypeError(fun + " is not a function");
+ }
- for (var i = 0; i < length; i++) {
- if (i in self && fun.call(thisp, self[i], i, object)) {
- return true;
- }
- }
- return false;
- };
-}
+ for (var i = 0; i < length; i++) {
+ if (i in self && fun.call(thisp, self[i], i, object)) {
+ return true;
+ }
+ }
+ return false;
+ };
+ }
// ES5 15.4.4.21
// http://es5.github.com/#x15.4.4.21
// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduce
-if (!Array.prototype.reduce) {
- Array.prototype.reduce = function reduce(fun /*, initial*/) {
- var object = toObject(this),
- self = splitString && _toString(this) == "[object String]" ?
- this.split("") :
- object,
- length = self.length >>> 0;
+ var reduceCoercesToObject = false;
+ if (Array.prototype.reduce) {
+ reduceCoercesToObject = typeof Array.prototype.reduce.call('es5', function (_, __, ___, list) { return list; }) === 'object';
+ }
+ if (!Array.prototype.reduce || !reduceCoercesToObject) {
+ Array.prototype.reduce = function reduce(fun /*, initial*/) {
+ var object = toObject(this),
+ self = splitString && _toString.call(this) === "[object String]" ?
+ this.split("") :
+ object,
+ length = self.length >>> 0;
- // If no callback function or if callback is not a callable function
- if (_toString(fun) != "[object Function]") {
- throw new TypeError(fun + " is not a function");
- }
+ // If no callback function or if callback is not a callable function
+ if (!isFunction(fun)) {
+ throw new TypeError(fun + " is not a function");
+ }
- // no value to return if no initial value and an empty array
- if (!length && arguments.length == 1) {
- throw new TypeError("reduce of empty array with no initial value");
- }
+ // no value to return if no initial value and an empty array
+ if (!length && arguments.length === 1) {
+ throw new TypeError("reduce of empty array with no initial value");
+ }
- var i = 0;
- var result;
- if (arguments.length >= 2) {
- result = arguments[1];
- } else {
- do {
- if (i in self) {
- result = self[i++];
- break;
- }
+ var i = 0;
+ var result;
+ if (arguments.length >= 2) {
+ result = arguments[1];
+ } else {
+ do {
+ if (i in self) {
+ result = self[i++];
+ break;
+ }
- // if array contains no values, no initial value to return
- if (++i >= length) {
- throw new TypeError("reduce of empty array with no initial value");
- }
- } while (true);
- }
+ // if array contains no values, no initial value to return
+ if (++i >= length) {
+ throw new TypeError("reduce of empty array with no initial value");
+ }
+ } while (true);
+ }
- for (; i < length; i++) {
- if (i in self) {
- result = fun.call(void 0, result, self[i], i, object);
- }
- }
+ for (; i < length; i++) {
+ if (i in self) {
+ result = fun.call(void 0, result, self[i], i, object);
+ }
+ }
- return result;
- };
-}
+ return result;
+ };
+ }
// ES5 15.4.4.22
// http://es5.github.com/#x15.4.4.22
// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduceRight
-if (!Array.prototype.reduceRight) {
- Array.prototype.reduceRight = function reduceRight(fun /*, initial*/) {
- var object = toObject(this),
- self = splitString && _toString(this) == "[object String]" ?
- this.split("") :
- object,
- length = self.length >>> 0;
+ var reduceRightCoercesToObject = false;
+ if (Array.prototype.reduceRight) {
+ reduceRightCoercesToObject = typeof Array.prototype.reduceRight.call('es5', function (_, __, ___, list) { return list; }) === 'object';
+ }
+ if (!Array.prototype.reduceRight || !reduceRightCoercesToObject) {
+ Array.prototype.reduceRight = function reduceRight(fun /*, initial*/) {
+ var object = toObject(this),
+ self = splitString && _toString.call(this) === "[object String]" ?
+ this.split("") :
+ object,
+ length = self.length >>> 0;
- // If no callback function or if callback is not a callable function
- if (_toString(fun) != "[object Function]") {
- throw new TypeError(fun + " is not a function");
- }
+ // If no callback function or if callback is not a callable function
+ if (!isFunction(fun)) {
+ throw new TypeError(fun + " is not a function");
+ }
- // no value to return if no initial value, empty array
- if (!length && arguments.length == 1) {
- throw new TypeError("reduceRight of empty array with no initial value");
- }
+ // no value to return if no initial value, empty array
+ if (!length && arguments.length === 1) {
+ throw new TypeError("reduceRight of empty array with no initial value");
+ }
- var result, i = length - 1;
- if (arguments.length >= 2) {
- result = arguments[1];
- } else {
- do {
- if (i in self) {
- result = self[i--];
- break;
- }
+ var result, i = length - 1;
+ if (arguments.length >= 2) {
+ result = arguments[1];
+ } else {
+ do {
+ if (i in self) {
+ result = self[i--];
+ break;
+ }
- // if array contains no values, no initial value to return
- if (--i < 0) {
- throw new TypeError("reduceRight of empty array with no initial value");
- }
- } while (true);
- }
+ // if array contains no values, no initial value to return
+ if (--i < 0) {
+ throw new TypeError("reduceRight of empty array with no initial value");
+ }
+ } while (true);
+ }
- if (i < 0) {
- return result;
- }
+ if (i < 0) {
+ return result;
+ }
- do {
- if (i in this) {
- result = fun.call(void 0, result, self[i], i, object);
- }
- } while (i--);
+ do {
+ if (i in self) {
+ result = fun.call(void 0, result, self[i], i, object);
+ }
+ } while (i--);
- return result;
- };
-}
+ return result;
+ };
+ }
// ES5 15.4.4.14
// http://es5.github.com/#x15.4.4.14
// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/indexOf
-if (!Array.prototype.indexOf || ([0, 1].indexOf(1, 2) != -1)) {
- Array.prototype.indexOf = function indexOf(sought /*, fromIndex */ ) {
- var self = splitString && _toString(this) == "[object String]" ?
- this.split("") :
- toObject(this),
- length = self.length >>> 0;
+ if (!Array.prototype.indexOf || ([0, 1].indexOf(1, 2) !== -1)) {
+ Array.prototype.indexOf = function indexOf(sought /*, fromIndex */ ) {
+ var self = splitString && _toString.call(this) === "[object String]" ?
+ this.split("") :
+ toObject(this),
+ length = self.length >>> 0;
- if (!length) {
- return -1;
- }
+ if (!length) {
+ return -1;
+ }
- var i = 0;
- if (arguments.length > 1) {
- i = toInteger(arguments[1]);
- }
+ var i = 0;
+ if (arguments.length > 1) {
+ i = toInteger(arguments[1]);
+ }
- // handle negative indices
- i = i >= 0 ? i : Math.max(0, length + i);
- for (; i < length; i++) {
- if (i in self && self[i] === sought) {
- return i;
- }
- }
- return -1;
- };
-}
+ // handle negative indices
+ i = i >= 0 ? i : Math.max(0, length + i);
+ for (; i < length; i++) {
+ if (i in self && self[i] === sought) {
+ return i;
+ }
+ }
+ return -1;
+ };
+ }
// ES5 15.4.4.15
// http://es5.github.com/#x15.4.4.15
// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/lastIndexOf
-if (!Array.prototype.lastIndexOf || ([0, 1].lastIndexOf(0, -3) != -1)) {
- Array.prototype.lastIndexOf = function lastIndexOf(sought /*, fromIndex */) {
- var self = splitString && _toString(this) == "[object String]" ?
- this.split("") :
- toObject(this),
- length = self.length >>> 0;
+ if (!Array.prototype.lastIndexOf || ([0, 1].lastIndexOf(0, -3) !== -1)) {
+ Array.prototype.lastIndexOf = function lastIndexOf(sought /*, fromIndex */) {
+ var self = splitString && _toString.call(this) === "[object String]" ?
+ this.split("") :
+ toObject(this),
+ length = self.length >>> 0;
- if (!length) {
- return -1;
- }
- var i = length - 1;
- if (arguments.length > 1) {
- i = Math.min(i, toInteger(arguments[1]));
- }
- // handle negative indices
- i = i >= 0 ? i : length - Math.abs(i);
- for (; i >= 0; i--) {
- if (i in self && sought === self[i]) {
- return i;
- }
- }
- return -1;
- };
-}
+ if (!length) {
+ return -1;
+ }
+ var i = length - 1;
+ if (arguments.length > 1) {
+ i = Math.min(i, toInteger(arguments[1]));
+ }
+ // handle negative indices
+ i = i >= 0 ? i : length - Math.abs(i);
+ for (; i >= 0; i--) {
+ if (i in self && sought === self[i]) {
+ return i;
+ }
+ }
+ return -1;
+ };
+ }
//
// Object
// ======
//
// ES5 15.2.3.14
// http://es5.github.com/#x15.2.3.14
-if (!Object.keys) {
- // http://whattheheadsaid.com/2010/10/a-safer-object-keys-compatibility-implementation
- var hasDontEnumBug = true,
- dontEnums = [
- "toString",
- "toLocaleString",
- "valueOf",
- "hasOwnProperty",
- "isPrototypeOf",
- "propertyIsEnumerable",
- "constructor"
- ],
- dontEnumsLength = dontEnums.length;
+ var keysWorksWithArguments = Object.keys && (function () {
+ return Object.keys(arguments).length === 2;
+ }(1, 2));
+ if (!Object.keys) {
+ // http://whattheheadsaid.com/2010/10/a-safer-object-keys-compatibility-implementation
+ var hasDontEnumBug = !({'toString': null}).propertyIsEnumerable('toString'),
+ hasProtoEnumBug = (function () {}).propertyIsEnumerable('prototype'),
+ dontEnums = [
+ "toString",
+ "toLocaleString",
+ "valueOf",
+ "hasOwnProperty",
+ "isPrototypeOf",
+ "propertyIsEnumerable",
+ "constructor"
+ ],
+ dontEnumsLength = dontEnums.length;
- for (var key in {"toString": null}) {
- hasDontEnumBug = false;
- }
+ Object.keys = function keys(object) {
+ var isFn = isFunction(object),
+ isArgs = isArguments(object),
+ isObject = object !== null && typeof object === 'object',
+ isString = isObject && _toString.call(object) === '[object String]';
- Object.keys = function keys(object) {
+ if (!isObject && !isFn && !isArgs) {
+ throw new TypeError("Object.keys called on a non-object");
+ }
- if (
- (typeof object != "object" && typeof object != "function") ||
- object === null
- ) {
- throw new TypeError("Object.keys called on a non-object");
- }
+ var theKeys = [];
+ var skipProto = hasProtoEnumBug && isFn;
+ if (isString || isArgs) {
+ for (var i = 0; i < object.length; ++i) {
+ theKeys.push(String(i));
+ }
+ } else {
+ for (var name in object) {
+ if (!(skipProto && name === 'prototype') && owns(object, name)) {
+ theKeys.push(String(name));
+ }
+ }
+ }
- var keys = [];
- for (var name in object) {
- if (owns(object, name)) {
- keys.push(name);
- }
- }
+ if (hasDontEnumBug) {
+ var ctor = object.constructor,
+ skipConstructor = ctor && ctor.prototype === object;
+ for (var j = 0; j < dontEnumsLength; j++) {
+ var dontEnum = dontEnums[j];
+ if (!(skipConstructor && dontEnum === 'constructor') && owns(object, dontEnum)) {
+ theKeys.push(dontEnum);
+ }
+ }
+ }
+ return theKeys;
+ };
+ } else if (!keysWorksWithArguments) {
+ // Safari 5.0 bug
+ var originalKeys = Object.keys;
+ Object.keys = function keys(object) {
+ if (isArguments(object)) {
+ return originalKeys(Array.prototype.slice.call(object));
+ } else {
+ return originalKeys(object);
+ }
+ };
+ }
- if (hasDontEnumBug) {
- for (var i = 0, ii = dontEnumsLength; i < ii; i++) {
- var dontEnum = dontEnums[i];
- if (owns(object, dontEnum)) {
- keys.push(dontEnum);
- }
- }
- }
- return keys;
- };
-
-}
-
//
// Date
// ====
//
@@ -668,639 +692,695 @@
// This function returns a String value represent the instance in time
// represented by this Date object. The format of the String is the Date Time
// string format defined in 15.9.1.15. All fields are present in the String.
// The time zone is always UTC, denoted by the suffix Z. If the time value of
// this object is not a finite Number a RangeError exception is thrown.
-var negativeDate = -62198755200000,
- negativeYearString = "-000001";
-if (
- !Date.prototype.toISOString ||
- (new Date(negativeDate).toISOString().indexOf(negativeYearString) === -1)
-) {
- Date.prototype.toISOString = function toISOString() {
- var result, length, value, year, month;
- if (!isFinite(this)) {
- throw new RangeError("Date.prototype.toISOString called on non-finite value.");
- }
+ var negativeDate = -62198755200000,
+ negativeYearString = "-000001";
+ if (
+ !Date.prototype.toISOString ||
+ (new Date(negativeDate).toISOString().indexOf(negativeYearString) === -1)
+ ) {
+ Date.prototype.toISOString = function toISOString() {
+ var result, length, value, year, month;
+ if (!isFinite(this)) {
+ throw new RangeError("Date.prototype.toISOString called on non-finite value.");
+ }
- year = this.getUTCFullYear();
+ year = this.getUTCFullYear();
- month = this.getUTCMonth();
- // see https://github.com/kriskowal/es5-shim/issues/111
- year += Math.floor(month / 12);
- month = (month % 12 + 12) % 12;
+ month = this.getUTCMonth();
+ // see https://github.com/es-shims/es5-shim/issues/111
+ year += Math.floor(month / 12);
+ month = (month % 12 + 12) % 12;
- // the date time string format is specified in 15.9.1.15.
- result = [month + 1, this.getUTCDate(),
- this.getUTCHours(), this.getUTCMinutes(), this.getUTCSeconds()];
- year = (
- (year < 0 ? "-" : (year > 9999 ? "+" : "")) +
- ("00000" + Math.abs(year))
- .slice(0 <= year && year <= 9999 ? -4 : -6)
- );
+ // the date time string format is specified in 15.9.1.15.
+ result = [month + 1, this.getUTCDate(), this.getUTCHours(), this.getUTCMinutes(), this.getUTCSeconds()];
+ year = (
+ (year < 0 ? "-" : (year > 9999 ? "+" : "")) +
+ ("00000" + Math.abs(year)).slice(0 <= year && year <= 9999 ? -4 : -6)
+ );
- length = result.length;
- while (length--) {
- value = result[length];
- // pad months, days, hours, minutes, and seconds to have two
- // digits.
- if (value < 10) {
- result[length] = "0" + value;
- }
- }
- // pad milliseconds to have three digits.
- return (
- year + "-" + result.slice(0, 2).join("-") +
- "T" + result.slice(2).join(":") + "." +
- ("000" + this.getUTCMilliseconds()).slice(-3) + "Z"
- );
- };
-}
+ length = result.length;
+ while (length--) {
+ value = result[length];
+ // pad months, days, hours, minutes, and seconds to have two
+ // digits.
+ if (value < 10) {
+ result[length] = "0" + value;
+ }
+ }
+ // pad milliseconds to have three digits.
+ return (
+ year + "-" + result.slice(0, 2).join("-") +
+ "T" + result.slice(2).join(":") + "." +
+ ("000" + this.getUTCMilliseconds()).slice(-3) + "Z"
+ );
+ };
+ }
// ES5 15.9.5.44
// http://es5.github.com/#x15.9.5.44
// This function provides a String representation of a Date object for use by
// JSON.stringify (15.12.3).
-var dateToJSONIsSupported = false;
-try {
- dateToJSONIsSupported = (
- Date.prototype.toJSON &&
- new Date(NaN).toJSON() === null &&
- new Date(negativeDate).toJSON().indexOf(negativeYearString) !== -1 &&
- Date.prototype.toJSON.call({ // generic
- toISOString: function () {
- return true;
- }
- })
- );
-} catch (e) {
-}
-if (!dateToJSONIsSupported) {
- Date.prototype.toJSON = function toJSON(key) {
- // When the toJSON method is called with argument key, the following
- // steps are taken:
+ var dateToJSONIsSupported = false;
+ try {
+ dateToJSONIsSupported = (
+ Date.prototype.toJSON &&
+ new Date(NaN).toJSON() === null &&
+ new Date(negativeDate).toJSON().indexOf(negativeYearString) !== -1 &&
+ Date.prototype.toJSON.call({ // generic
+ toISOString: function () {
+ return true;
+ }
+ })
+ );
+ } catch (e) {
+ }
+ if (!dateToJSONIsSupported) {
+ Date.prototype.toJSON = function toJSON(key) {
+ // When the toJSON method is called with argument key, the following
+ // steps are taken:
- // 1. Let O be the result of calling ToObject, giving it the this
- // value as its argument.
- // 2. Let tv be toPrimitive(O, hint Number).
- var o = Object(this),
- tv = toPrimitive(o),
- toISO;
- // 3. If tv is a Number and is not finite, return null.
- if (typeof tv === "number" && !isFinite(tv)) {
- return null;
- }
- // 4. Let toISO be the result of calling the [[Get]] internal method of
- // O with argument "toISOString".
- toISO = o.toISOString;
- // 5. If IsCallable(toISO) is false, throw a TypeError exception.
- if (typeof toISO != "function") {
- throw new TypeError("toISOString property is not callable");
- }
- // 6. Return the result of calling the [[Call]] internal method of
- // toISO with O as the this value and an empty argument list.
- return toISO.call(o);
+ // 1. Let O be the result of calling ToObject, giving it the this
+ // value as its argument.
+ // 2. Let tv be toPrimitive(O, hint Number).
+ var o = Object(this),
+ tv = toPrimitive(o),
+ toISO;
+ // 3. If tv is a Number and is not finite, return null.
+ if (typeof tv === "number" && !isFinite(tv)) {
+ return null;
+ }
+ // 4. Let toISO be the result of calling the [[Get]] internal method of
+ // O with argument "toISOString".
+ toISO = o.toISOString;
+ // 5. If IsCallable(toISO) is false, throw a TypeError exception.
+ if (typeof toISO !== "function") {
+ throw new TypeError("toISOString property is not callable");
+ }
+ // 6. Return the result of calling the [[Call]] internal method of
+ // toISO with O as the this value and an empty argument list.
+ return toISO.call(o);
- // NOTE 1 The argument is ignored.
+ // NOTE 1 The argument is ignored.
- // NOTE 2 The toJSON function is intentionally generic; it does not
- // require that its this value be a Date object. Therefore, it can be
- // transferred to other kinds of objects for use as a method. However,
- // it does require that any such object have a toISOString method. An
- // object is free to use the argument key to filter its
- // stringification.
- };
-}
+ // NOTE 2 The toJSON function is intentionally generic; it does not
+ // require that its this value be a Date object. Therefore, it can be
+ // transferred to other kinds of objects for use as a method. However,
+ // it does require that any such object have a toISOString method. An
+ // object is free to use the argument key to filter its
+ // stringification.
+ };
+ }
// ES5 15.9.4.2
// http://es5.github.com/#x15.9.4.2
// based on work shared by Daniel Friesen (dantman)
// http://gist.github.com/303249
-if (!Date.parse || "Date.parse is buggy") {
- // XXX global assignment won't work in embeddings that use
- // an alternate object for the context.
- Date = (function(NativeDate) {
+ var supportsExtendedYears = Date.parse('+033658-09-27T01:46:40.000Z') === 1e15;
+ var acceptsInvalidDates = !isNaN(Date.parse('2012-04-04T24:00:00.500Z')) || !isNaN(Date.parse('2012-11-31T23:59:59.000Z'));
+ var doesNotParseY2KNewYear = isNaN(Date.parse("2000-01-01T00:00:00.000Z"));
+ if (!Date.parse || doesNotParseY2KNewYear || acceptsInvalidDates || !supportsExtendedYears) {
+ // XXX global assignment won't work in embeddings that use
+ // an alternate object for the context.
+ Date = (function (NativeDate) {
- // Date.length === 7
- function Date(Y, M, D, h, m, s, ms) {
- var length = arguments.length;
- if (this instanceof NativeDate) {
- var date = length == 1 && String(Y) === Y ? // isString(Y)
- // We explicitly pass it through parse:
- new NativeDate(Date.parse(Y)) :
- // We have to manually make calls depending on argument
- // length here
- length >= 7 ? new NativeDate(Y, M, D, h, m, s, ms) :
- length >= 6 ? new NativeDate(Y, M, D, h, m, s) :
- length >= 5 ? new NativeDate(Y, M, D, h, m) :
- length >= 4 ? new NativeDate(Y, M, D, h) :
- length >= 3 ? new NativeDate(Y, M, D) :
- length >= 2 ? new NativeDate(Y, M) :
- length >= 1 ? new NativeDate(Y) :
- new NativeDate();
- // Prevent mixups with unfixed Date object
- date.constructor = Date;
- return date;
- }
- return NativeDate.apply(this, arguments);
- };
+ // Date.length === 7
+ function Date(Y, M, D, h, m, s, ms) {
+ var length = arguments.length;
+ if (this instanceof NativeDate) {
+ var date = length === 1 && String(Y) === Y ? // isString(Y)
+ // We explicitly pass it through parse:
+ new NativeDate(Date.parse(Y)) :
+ // We have to manually make calls depending on argument
+ // length here
+ length >= 7 ? new NativeDate(Y, M, D, h, m, s, ms) :
+ length >= 6 ? new NativeDate(Y, M, D, h, m, s) :
+ length >= 5 ? new NativeDate(Y, M, D, h, m) :
+ length >= 4 ? new NativeDate(Y, M, D, h) :
+ length >= 3 ? new NativeDate(Y, M, D) :
+ length >= 2 ? new NativeDate(Y, M) :
+ length >= 1 ? new NativeDate(Y) :
+ new NativeDate();
+ // Prevent mixups with unfixed Date object
+ date.constructor = Date;
+ return date;
+ }
+ return NativeDate.apply(this, arguments);
+ }
- // 15.9.1.15 Date Time String Format.
- var isoDateExpression = new RegExp("^" +
- "(\\d{4}|[\+\-]\\d{6})" + // four-digit year capture or sign +
- // 6-digit extended year
- "(?:-(\\d{2})" + // optional month capture
- "(?:-(\\d{2})" + // optional day capture
- "(?:" + // capture hours:minutes:seconds.milliseconds
- "T(\\d{2})" + // hours capture
- ":(\\d{2})" + // minutes capture
- "(?:" + // optional :seconds.milliseconds
- ":(\\d{2})" + // seconds capture
- "(?:(\\.\\d{1,}))?" + // milliseconds capture
- ")?" +
- "(" + // capture UTC offset component
- "Z|" + // UTC capture
- "(?:" + // offset specifier +/-hours:minutes
- "([-+])" + // sign capture
- "(\\d{2})" + // hours offset capture
- ":(\\d{2})" + // minutes offset capture
- ")" +
- ")?)?)?)?" +
- "$");
+ // 15.9.1.15 Date Time String Format.
+ var isoDateExpression = new RegExp("^" +
+ "(\\d{4}|[\+\-]\\d{6})" + // four-digit year capture or sign +
+ // 6-digit extended year
+ "(?:-(\\d{2})" + // optional month capture
+ "(?:-(\\d{2})" + // optional day capture
+ "(?:" + // capture hours:minutes:seconds.milliseconds
+ "T(\\d{2})" + // hours capture
+ ":(\\d{2})" + // minutes capture
+ "(?:" + // optional :seconds.milliseconds
+ ":(\\d{2})" + // seconds capture
+ "(?:(\\.\\d{1,}))?" + // milliseconds capture
+ ")?" +
+ "(" + // capture UTC offset component
+ "Z|" + // UTC capture
+ "(?:" + // offset specifier +/-hours:minutes
+ "([-+])" + // sign capture
+ "(\\d{2})" + // hours offset capture
+ ":(\\d{2})" + // minutes offset capture
+ ")" +
+ ")?)?)?)?" +
+ "$");
- var months = [
- 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365
- ];
+ var months = [
+ 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 365
+ ];
- function dayFromMonth(year, month) {
- var t = month > 1 ? 1 : 0;
- return (
- months[month] +
- Math.floor((year - 1969 + t) / 4) -
- Math.floor((year - 1901 + t) / 100) +
- Math.floor((year - 1601 + t) / 400) +
- 365 * (year - 1970)
- );
- }
+ function dayFromMonth(year, month) {
+ var t = month > 1 ? 1 : 0;
+ return (
+ months[month] +
+ Math.floor((year - 1969 + t) / 4) -
+ Math.floor((year - 1901 + t) / 100) +
+ Math.floor((year - 1601 + t) / 400) +
+ 365 * (year - 1970)
+ );
+ }
- // Copy any custom methods a 3rd party library may have added
- for (var key in NativeDate) {
- Date[key] = NativeDate[key];
- }
+ function toUTC(t) {
+ return Number(new NativeDate(1970, 0, 1, 0, 0, 0, t));
+ }
- // Copy "native" methods explicitly; they may be non-enumerable
- Date.now = NativeDate.now;
- Date.UTC = NativeDate.UTC;
- Date.prototype = NativeDate.prototype;
- Date.prototype.constructor = Date;
+ // Copy any custom methods a 3rd party library may have added
+ for (var key in NativeDate) {
+ Date[key] = NativeDate[key];
+ }
- // Upgrade Date.parse to handle simplified ISO 8601 strings
- Date.parse = function parse(string) {
- var match = isoDateExpression.exec(string);
- if (match) {
- // parse months, days, hours, minutes, seconds, and milliseconds
- // provide default values if necessary
- // parse the UTC offset component
- var year = Number(match[1]),
- month = Number(match[2] || 1) - 1,
- day = Number(match[3] || 1) - 1,
- hour = Number(match[4] || 0),
- minute = Number(match[5] || 0),
- second = Number(match[6] || 0),
- millisecond = Math.floor(Number(match[7] || 0) * 1000),
- // When time zone is missed, local offset should be used
- // (ES 5.1 bug)
- // see https://bugs.ecmascript.org/show_bug.cgi?id=112
- offset = !match[4] || match[8] ?
- 0 : Number(new NativeDate(1970, 0)),
- signOffset = match[9] === "-" ? 1 : -1,
- hourOffset = Number(match[10] || 0),
- minuteOffset = Number(match[11] || 0),
- result;
- if (
- hour < (
- minute > 0 || second > 0 || millisecond > 0 ?
- 24 : 25
- ) &&
- minute < 60 && second < 60 && millisecond < 1000 &&
- month > -1 && month < 12 && hourOffset < 24 &&
- minuteOffset < 60 && // detect invalid offsets
- day > -1 &&
- day < (
- dayFromMonth(year, month + 1) -
- dayFromMonth(year, month)
- )
- ) {
- result = (
- (dayFromMonth(year, month) + day) * 24 +
- hour +
- hourOffset * signOffset
- ) * 60;
- result = (
- (result + minute + minuteOffset * signOffset) * 60 +
- second
- ) * 1000 + millisecond + offset;
- if (-8.64e15 <= result && result <= 8.64e15) {
- return result;
- }
- }
- return NaN;
- }
- return NativeDate.parse.apply(this, arguments);
- };
+ // Copy "native" methods explicitly; they may be non-enumerable
+ Date.now = NativeDate.now;
+ Date.UTC = NativeDate.UTC;
+ Date.prototype = NativeDate.prototype;
+ Date.prototype.constructor = Date;
- return Date;
- })(Date);
-}
+ // Upgrade Date.parse to handle simplified ISO 8601 strings
+ Date.parse = function parse(string) {
+ var match = isoDateExpression.exec(string);
+ if (match) {
+ // parse months, days, hours, minutes, seconds, and milliseconds
+ // provide default values if necessary
+ // parse the UTC offset component
+ var year = Number(match[1]),
+ month = Number(match[2] || 1) - 1,
+ day = Number(match[3] || 1) - 1,
+ hour = Number(match[4] || 0),
+ minute = Number(match[5] || 0),
+ second = Number(match[6] || 0),
+ millisecond = Math.floor(Number(match[7] || 0) * 1000),
+ // When time zone is missed, local offset should be used
+ // (ES 5.1 bug)
+ // see https://bugs.ecmascript.org/show_bug.cgi?id=112
+ isLocalTime = Boolean(match[4] && !match[8]),
+ signOffset = match[9] === "-" ? 1 : -1,
+ hourOffset = Number(match[10] || 0),
+ minuteOffset = Number(match[11] || 0),
+ result;
+ if (
+ hour < (
+ minute > 0 || second > 0 || millisecond > 0 ?
+ 24 : 25
+ ) &&
+ minute < 60 && second < 60 && millisecond < 1000 &&
+ month > -1 && month < 12 && hourOffset < 24 &&
+ minuteOffset < 60 && // detect invalid offsets
+ day > -1 &&
+ day < (
+ dayFromMonth(year, month + 1) -
+ dayFromMonth(year, month)
+ )
+ ) {
+ result = (
+ (dayFromMonth(year, month) + day) * 24 +
+ hour +
+ hourOffset * signOffset
+ ) * 60;
+ result = (
+ (result + minute + minuteOffset * signOffset) * 60 +
+ second
+ ) * 1000 + millisecond;
+ if (isLocalTime) {
+ result = toUTC(result);
+ }
+ if (-8.64e15 <= result && result <= 8.64e15) {
+ return result;
+ }
+ }
+ return NaN;
+ }
+ return NativeDate.parse.apply(this, arguments);
+ };
+ return Date;
+ })(Date);
+ }
+
// ES5 15.9.4.4
// http://es5.github.com/#x15.9.4.4
-if (!Date.now) {
- Date.now = function now() {
- return new Date().getTime();
- };
-}
+ if (!Date.now) {
+ Date.now = function now() {
+ return new Date().getTime();
+ };
+ }
//
// Number
// ======
//
// ES5.1 15.7.4.5
// http://es5.github.com/#x15.7.4.5
-if (!Number.prototype.toFixed || (0.00008).toFixed(3) !== '0.000' || (0.9).toFixed(0) === '0' || (1.255).toFixed(2) !== '1.25' || (1000000000000000128).toFixed(0) !== "1000000000000000128") {
- // Hide these variables and functions
- (function () {
- var base, size, data, i;
+ if (!Number.prototype.toFixed || (0.00008).toFixed(3) !== '0.000' || (0.9).toFixed(0) === '0' || (1.255).toFixed(2) !== '1.25' || (1000000000000000128).toFixed(0) !== "1000000000000000128") {
+ // Hide these variables and functions
+ (function () {
+ var base, size, data, i;
- base = 1e7;
- size = 6;
- data = [0, 0, 0, 0, 0, 0];
+ base = 1e7;
+ size = 6;
+ data = [0, 0, 0, 0, 0, 0];
- function multiply(n, c) {
- var i = -1;
- while (++i < size) {
- c += n * data[i];
- data[i] = c % base;
- c = Math.floor(c / base);
- }
- }
+ function multiply(n, c) {
+ var i = -1;
+ while (++i < size) {
+ c += n * data[i];
+ data[i] = c % base;
+ c = Math.floor(c / base);
+ }
+ }
- function divide(n) {
- var i = size, c = 0;
- while (--i >= 0) {
- c += data[i];
- data[i] = Math.floor(c / n);
- c = (c % n) * base;
- }
- }
+ function divide(n) {
+ var i = size, c = 0;
+ while (--i >= 0) {
+ c += data[i];
+ data[i] = Math.floor(c / n);
+ c = (c % n) * base;
+ }
+ }
- function toString() {
- var i = size;
- var s = '';
- while (--i >= 0) {
- if (s !== '' || i === 0 || data[i] !== 0) {
- var t = String(data[i]);
- if (s === '') {
- s = t;
- } else {
- s += '0000000'.slice(0, 7 - t.length) + t;
- }
- }
- }
- return s;
- }
+ function numToString() {
+ var i = size;
+ var s = '';
+ while (--i >= 0) {
+ if (s !== '' || i === 0 || data[i] !== 0) {
+ var t = String(data[i]);
+ if (s === '') {
+ s = t;
+ } else {
+ s += '0000000'.slice(0, 7 - t.length) + t;
+ }
+ }
+ }
+ return s;
+ }
- function pow(x, n, acc) {
- return (n === 0 ? acc : (n % 2 === 1 ? pow(x, n - 1, acc * x) : pow(x * x, n / 2, acc)));
- }
+ function pow(x, n, acc) {
+ return (n === 0 ? acc : (n % 2 === 1 ? pow(x, n - 1, acc * x) : pow(x * x, n / 2, acc)));
+ }
- function log(x) {
- var n = 0;
- while (x >= 4096) {
- n += 12;
- x /= 4096;
- }
- while (x >= 2) {
- n += 1;
- x /= 2;
- }
- return n;
- }
+ function log(x) {
+ var n = 0;
+ while (x >= 4096) {
+ n += 12;
+ x /= 4096;
+ }
+ while (x >= 2) {
+ n += 1;
+ x /= 2;
+ }
+ return n;
+ }
- Number.prototype.toFixed = function (fractionDigits) {
- var f, x, s, m, e, z, j, k;
+ Number.prototype.toFixed = function toFixed(fractionDigits) {
+ var f, x, s, m, e, z, j, k;
- // Test for NaN and round fractionDigits down
- f = Number(fractionDigits);
- f = f !== f ? 0 : Math.floor(f);
+ // Test for NaN and round fractionDigits down
+ f = Number(fractionDigits);
+ f = f !== f ? 0 : Math.floor(f);
- if (f < 0 || f > 20) {
- throw new RangeError("Number.toFixed called with invalid number of decimals");
- }
+ if (f < 0 || f > 20) {
+ throw new RangeError("Number.toFixed called with invalid number of decimals");
+ }
- x = Number(this);
+ x = Number(this);
- // Test for NaN
- if (x !== x) {
- return "NaN";
- }
+ // Test for NaN
+ if (x !== x) {
+ return "NaN";
+ }
- // If it is too big or small, return the string value of the number
- if (x <= -1e21 || x >= 1e21) {
- return String(x);
- }
+ // If it is too big or small, return the string value of the number
+ if (x <= -1e21 || x >= 1e21) {
+ return String(x);
+ }
- s = "";
+ s = "";
- if (x < 0) {
- s = "-";
- x = -x;
- }
+ if (x < 0) {
+ s = "-";
+ x = -x;
+ }
- m = "0";
+ m = "0";
- if (x > 1e-21) {
- // 1e-21 < x < 1e21
- // -70 < log2(x) < 70
- e = log(x * pow(2, 69, 1)) - 69;
- z = (e < 0 ? x * pow(2, -e, 1) : x / pow(2, e, 1));
- z *= 0x10000000000000; // Math.pow(2, 52);
- e = 52 - e;
+ if (x > 1e-21) {
+ // 1e-21 < x < 1e21
+ // -70 < log2(x) < 70
+ e = log(x * pow(2, 69, 1)) - 69;
+ z = (e < 0 ? x * pow(2, -e, 1) : x / pow(2, e, 1));
+ z *= 0x10000000000000; // Math.pow(2, 52);
+ e = 52 - e;
- // -18 < e < 122
- // x = z / 2 ^ e
- if (e > 0) {
- multiply(0, z);
- j = f;
+ // -18 < e < 122
+ // x = z / 2 ^ e
+ if (e > 0) {
+ multiply(0, z);
+ j = f;
- while (j >= 7) {
- multiply(1e7, 0);
- j -= 7;
- }
+ while (j >= 7) {
+ multiply(1e7, 0);
+ j -= 7;
+ }
- multiply(pow(10, j, 1), 0);
- j = e - 1;
+ multiply(pow(10, j, 1), 0);
+ j = e - 1;
- while (j >= 23) {
- divide(1 << 23);
- j -= 23;
- }
+ while (j >= 23) {
+ divide(1 << 23);
+ j -= 23;
+ }
- divide(1 << j);
- multiply(1, 1);
- divide(2);
- m = toString();
- } else {
- multiply(0, z);
- multiply(1 << (-e), 0);
- m = toString() + '0.00000000000000000000'.slice(2, 2 + f);
- }
- }
+ divide(1 << j);
+ multiply(1, 1);
+ divide(2);
+ m = numToString();
+ } else {
+ multiply(0, z);
+ multiply(1 << (-e), 0);
+ m = numToString() + '0.00000000000000000000'.slice(2, 2 + f);
+ }
+ }
- if (f > 0) {
- k = m.length;
+ if (f > 0) {
+ k = m.length;
- if (k <= f) {
- m = s + '0.0000000000000000000'.slice(0, f - k + 2) + m;
- } else {
- m = s + m.slice(0, k - f) + '.' + m.slice(k - f);
- }
- } else {
- m = s + m;
- }
+ if (k <= f) {
+ m = s + '0.0000000000000000000'.slice(0, f - k + 2) + m;
+ } else {
+ m = s + m.slice(0, k - f) + '.' + m.slice(k - f);
+ }
+ } else {
+ m = s + m;
+ }
- return m;
- }
- }());
-}
+ return m;
+ };
+ }());
+ }
//
// String
// ======
//
-
// ES5 15.5.4.14
// http://es5.github.com/#x15.5.4.14
// [bugfix, IE lt 9, firefox 4, Konqueror, Opera, obscure browsers]
// Many browsers do not split properly with regular expressions or they
// do not perform the split correctly under obscure conditions.
// See http://blog.stevenlevithan.com/archives/cross-browser-split
// I've tested in many browsers and this seems to cover the deviant ones:
-// 'ab'.split(/(?:ab)*/) should be ["", ""], not [""]
-// '.'.split(/(.?)(.?)/) should be ["", ".", "", ""], not ["", ""]
-// 'tesst'.split(/(s)*/) should be ["t", undefined, "e", "s", "t"], not
-// [undefined, "t", undefined, "e", ...]
-// ''.split(/.?/) should be [], not [""]
-// '.'.split(/()()/) should be ["."], not ["", "", "."]
+// 'ab'.split(/(?:ab)*/) should be ["", ""], not [""]
+// '.'.split(/(.?)(.?)/) should be ["", ".", "", ""], not ["", ""]
+// 'tesst'.split(/(s)*/) should be ["t", undefined, "e", "s", "t"], not
+// [undefined, "t", undefined, "e", ...]
+// ''.split(/.?/) should be [], not [""]
+// '.'.split(/()()/) should be ["."], not ["", "", "."]
-var string_split = String.prototype.split;
-if (
- 'ab'.split(/(?:ab)*/).length !== 2 ||
- '.'.split(/(.?)(.?)/).length !== 4 ||
- 'tesst'.split(/(s)*/)[1] === "t" ||
- ''.split(/.?/).length === 0 ||
- '.'.split(/()()/).length > 1
-) {
- (function () {
- var compliantExecNpcg = /()??/.exec("")[1] === void 0; // NPCG: nonparticipating capturing group
+ var string_split = String.prototype.split;
+ if (
+ 'ab'.split(/(?:ab)*/).length !== 2 ||
+ '.'.split(/(.?)(.?)/).length !== 4 ||
+ 'tesst'.split(/(s)*/)[1] === "t" ||
+ 'test'.split(/(?:)/, -1).length !== 4 ||
+ ''.split(/.?/).length ||
+ '.'.split(/()()/).length > 1
+ ) {
+ (function () {
+ var compliantExecNpcg = /()??/.exec("")[1] === void 0; // NPCG: nonparticipating capturing group
- String.prototype.split = function (separator, limit) {
- var string = this;
- if (separator === void 0 && limit === 0)
- return [];
+ String.prototype.split = function (separator, limit) {
+ var string = this;
+ if (separator === void 0 && limit === 0) {
+ return [];
+ }
- // If `separator` is not a regex, use native split
- if (Object.prototype.toString.call(separator) !== "[object RegExp]") {
- return string_split.apply(this, arguments);
- }
+ // If `separator` is not a regex, use native split
+ if (_toString.call(separator) !== "[object RegExp]") {
+ return string_split.call(this, separator, limit);
+ }
- var output = [],
- flags = (separator.ignoreCase ? "i" : "") +
- (separator.multiline ? "m" : "") +
- (separator.extended ? "x" : "") + // Proposed for ES6
- (separator.sticky ? "y" : ""), // Firefox 3+
- lastLastIndex = 0,
- // Make `global` and avoid `lastIndex` issues by working with a copy
- separator = new RegExp(separator.source, flags + "g"),
- separator2, match, lastIndex, lastLength;
- string += ""; // Type-convert
- if (!compliantExecNpcg) {
- // Doesn't need flags gy, but they don't hurt
- separator2 = new RegExp("^" + separator.source + "$(?!\\s)", flags);
- }
- /* Values for `limit`, per the spec:
- * If undefined: 4294967295 // Math.pow(2, 32) - 1
- * If 0, Infinity, or NaN: 0
- * If positive number: limit = Math.floor(limit); if (limit > 4294967295) limit -= 4294967296;
- * If negative number: 4294967296 - Math.floor(Math.abs(limit))
- * If other: Type-convert, then use the above rules
- */
- limit = limit === void 0 ?
- -1 >>> 0 : // Math.pow(2, 32) - 1
- limit >>> 0; // ToUint32(limit)
- while (match = separator.exec(string)) {
- // `separator.lastIndex` is not reliable cross-browser
- lastIndex = match.index + match[0].length;
- if (lastIndex > lastLastIndex) {
- output.push(string.slice(lastLastIndex, match.index));
- // Fix browsers whose `exec` methods don't consistently return `undefined` for
- // nonparticipating capturing groups
- if (!compliantExecNpcg && match.length > 1) {
- match[0].replace(separator2, function () {
- for (var i = 1; i < arguments.length - 2; i++) {
- if (arguments[i] === void 0) {
- match[i] = void 0;
- }
- }
- });
- }
- if (match.length > 1 && match.index < string.length) {
- Array.prototype.push.apply(output, match.slice(1));
- }
- lastLength = match[0].length;
- lastLastIndex = lastIndex;
- if (output.length >= limit) {
- break;
- }
- }
- if (separator.lastIndex === match.index) {
- separator.lastIndex++; // Avoid an infinite loop
- }
- }
- if (lastLastIndex === string.length) {
- if (lastLength || !separator.test("")) {
- output.push("");
- }
- } else {
- output.push(string.slice(lastLastIndex));
- }
- return output.length > limit ? output.slice(0, limit) : output;
- };
- }());
+ var output = [],
+ flags = (separator.ignoreCase ? "i" : "") +
+ (separator.multiline ? "m" : "") +
+ (separator.extended ? "x" : "") + // Proposed for ES6
+ (separator.sticky ? "y" : ""), // Firefox 3+
+ lastLastIndex = 0,
+ // Make `global` and avoid `lastIndex` issues by working with a copy
+ separator2, match, lastIndex, lastLength;
+ separator = new RegExp(separator.source, flags + "g");
+ string += ""; // Type-convert
+ if (!compliantExecNpcg) {
+ // Doesn't need flags gy, but they don't hurt
+ separator2 = new RegExp("^" + separator.source + "$(?!\\s)", flags);
+ }
+ /* Values for `limit`, per the spec:
+ * If undefined: 4294967295 // Math.pow(2, 32) - 1
+ * If 0, Infinity, or NaN: 0
+ * If positive number: limit = Math.floor(limit); if (limit > 4294967295) limit -= 4294967296;
+ * If negative number: 4294967296 - Math.floor(Math.abs(limit))
+ * If other: Type-convert, then use the above rules
+ */
+ limit = limit === void 0 ?
+ -1 >>> 0 : // Math.pow(2, 32) - 1
+ ToUint32(limit);
+ while (match = separator.exec(string)) {
+ // `separator.lastIndex` is not reliable cross-browser
+ lastIndex = match.index + match[0].length;
+ if (lastIndex > lastLastIndex) {
+ output.push(string.slice(lastLastIndex, match.index));
+ // Fix browsers whose `exec` methods don't consistently return `undefined` for
+ // nonparticipating capturing groups
+ if (!compliantExecNpcg && match.length > 1) {
+ match[0].replace(separator2, function () {
+ for (var i = 1; i < arguments.length - 2; i++) {
+ if (arguments[i] === void 0) {
+ match[i] = void 0;
+ }
+ }
+ });
+ }
+ if (match.length > 1 && match.index < string.length) {
+ Array.prototype.push.apply(output, match.slice(1));
+ }
+ lastLength = match[0].length;
+ lastLastIndex = lastIndex;
+ if (output.length >= limit) {
+ break;
+ }
+ }
+ if (separator.lastIndex === match.index) {
+ separator.lastIndex++; // Avoid an infinite loop
+ }
+ }
+ if (lastLastIndex === string.length) {
+ if (lastLength || !separator.test("")) {
+ output.push("");
+ }
+ } else {
+ output.push(string.slice(lastLastIndex));
+ }
+ return output.length > limit ? output.slice(0, limit) : output;
+ };
+ }());
// [bugfix, chrome]
// If separator is undefined, then the result array contains just one String,
// which is the this value (converted to a String). If limit is not undefined,
// then the output array is truncated so that it contains no more than limit
// elements.
// "0".split(undefined, 0) -> []
-} else if ("0".split(void 0, 0).length) {
- String.prototype.split = function(separator, limit) {
- if (separator === void 0 && limit === 0) return [];
- return string_split.apply(this, arguments);
- }
-}
+ } else if ("0".split(void 0, 0).length) {
+ String.prototype.split = function split(separator, limit) {
+ if (separator === void 0 && limit === 0) { return []; }
+ return string_split.call(this, separator, limit);
+ };
+ }
+ var str_replace = String.prototype.replace;
+ var replaceReportsGroupsCorrectly = (function () {
+ var groups = [];
+ 'x'.replace(/x(.)?/g, function (match, group) {
+ groups.push(group);
+ });
+ return groups.length === 1 && typeof groups[0] === 'undefined';
+ }());
+ if (!replaceReportsGroupsCorrectly) {
+ String.prototype.replace = function replace(searchValue, replaceValue) {
+ var isFn = isFunction(replaceValue);
+ var hasCapturingGroups = isRegex(searchValue) && (/\)[*?]/).test(searchValue.source);
+ if (!isFn || !hasCapturingGroups) {
+ return str_replace.call(this, searchValue, replaceValue);
+ } else {
+ var wrappedReplaceValue = function (match) {
+ var length = arguments.length;
+ var originalLastIndex = searchValue.lastIndex;
+ searchValue.lastIndex = 0;
+ var args = searchValue.exec(match);
+ searchValue.lastIndex = originalLastIndex;
+ args.push(arguments[length - 2], arguments[length - 1]);
+ return replaceValue.apply(this, args);
+ };
+ return str_replace.call(this, searchValue, wrappedReplaceValue);
+ }
+ };
+ }
+
// ECMA-262, 3rd B.2.3
-// Note an ECMAScript standart, although ECMAScript 3rd Edition has a
+// Not an ECMAScript standard, although ECMAScript 3rd Edition has a
// non-normative section suggesting uniform semantics and it should be
// normalized across all browsers
// [bugfix, IE lt 9] IE < 9 substr() with negative value not working in IE
-if("".substr && "0b".substr(-1) !== "b") {
- var string_substr = String.prototype.substr;
- /**
- * Get the substring of a string
- * @param {integer} start where to start the substring
- * @param {integer} length how many characters to return
- * @return {string}
- */
- String.prototype.substr = function(start, length) {
- return string_substr.call(
- this,
- start < 0 ? ((start = this.length + start) < 0 ? 0 : start) : start,
- length
- );
- }
-}
+ if ("".substr && "0b".substr(-1) !== "b") {
+ var string_substr = String.prototype.substr;
+ /**
+ * Get the substring of a string
+ * @param {integer} start where to start the substring
+ * @param {integer} length how many characters to return
+ * @return {string}
+ */
+ String.prototype.substr = function substr(start, length) {
+ return string_substr.call(
+ this,
+ start < 0 ? ((start = this.length + start) < 0 ? 0 : start) : start,
+ length
+ );
+ };
+ }
// ES5 15.5.4.20
-// http://es5.github.com/#x15.5.4.20
-var ws = "\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003" +
- "\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028" +
- "\u2029\uFEFF";
-if (!String.prototype.trim || ws.trim()) {
- // http://blog.stevenlevithan.com/archives/faster-trim-javascript
- // http://perfectionkills.com/whitespace-deviations/
- ws = "[" + ws + "]";
- var trimBeginRegexp = new RegExp("^" + ws + ws + "*"),
- trimEndRegexp = new RegExp(ws + ws + "*$");
- String.prototype.trim = function trim() {
- if (this === void 0 || this === null) {
- throw new TypeError("can't convert "+this+" to object");
- }
- return String(this)
- .replace(trimBeginRegexp, "")
- .replace(trimEndRegexp, "");
- };
-}
+// whitespace from: http://es5.github.io/#x15.5.4.20
+ var ws = "\x09\x0A\x0B\x0C\x0D\x20\xA0\u1680\u180E\u2000\u2001\u2002\u2003" +
+ "\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u3000\u2028" +
+ "\u2029\uFEFF";
+ var zeroWidth = '\u200b';
+ if (!String.prototype.trim || ws.trim() || !zeroWidth.trim()) {
+ // http://blog.stevenlevithan.com/archives/faster-trim-javascript
+ // http://perfectionkills.com/whitespace-deviations/
+ ws = "[" + ws + "]";
+ var trimBeginRegexp = new RegExp("^" + ws + ws + "*"),
+ trimEndRegexp = new RegExp(ws + ws + "*$");
+ String.prototype.trim = function trim() {
+ if (this === void 0 || this === null) {
+ throw new TypeError("can't convert " + this + " to object");
+ }
+ return String(this)
+ .replace(trimBeginRegexp, "")
+ .replace(trimEndRegexp, "");
+ };
+ }
+// ES-5 15.1.2.2
+ if (parseInt(ws + '08') !== 8 || parseInt(ws + '0x16') !== 22) {
+ parseInt = (function (origParseInt) {
+ var hexRegex = /^0[xX]/;
+ return function parseIntES5(str, radix) {
+ str = String(str).trim();
+ if (!Number(radix)) {
+ radix = hexRegex.test(str) ? 16 : 10;
+ }
+ return origParseInt(str, radix);
+ };
+ }(parseInt));
+ }
+
//
// Util
// ======
//
// ES5 9.4
// http://es5.github.com/#x9.4
// http://jsperf.com/to-integer
-function toInteger(n) {
- n = +n;
- if (n !== n) { // isNaN
- n = 0;
- } else if (n !== 0 && n !== (1/0) && n !== -(1/0)) {
- n = (n > 0 || -1) * Math.floor(Math.abs(n));
- }
- return n;
-}
+ function toInteger(n) {
+ n = +n;
+ if (n !== n) { // isNaN
+ n = 0;
+ } else if (n !== 0 && n !== (1 / 0) && n !== -(1 / 0)) {
+ n = (n > 0 || -1) * Math.floor(Math.abs(n));
+ }
+ return n;
+ }
-function isPrimitive(input) {
- var type = typeof input;
- return (
- input === null ||
- type === "undefined" ||
- type === "boolean" ||
- type === "number" ||
- type === "string"
- );
-}
+ function isPrimitive(input) {
+ var type = typeof input;
+ return (
+ input === null ||
+ type === "undefined" ||
+ type === "boolean" ||
+ type === "number" ||
+ type === "string"
+ );
+ }
-function toPrimitive(input) {
- var val, valueOf, toString;
- if (isPrimitive(input)) {
- return input;
- }
- valueOf = input.valueOf;
- if (typeof valueOf === "function") {
- val = valueOf.call(input);
- if (isPrimitive(val)) {
- return val;
- }
- }
- toString = input.toString;
- if (typeof toString === "function") {
- val = toString.call(input);
- if (isPrimitive(val)) {
- return val;
- }
- }
- throw new TypeError();
-}
+ function toPrimitive(input) {
+ var val, valueOf, toStr;
+ if (isPrimitive(input)) {
+ return input;
+ }
+ valueOf = input.valueOf;
+ if (isFunction(valueOf)) {
+ val = valueOf.call(input);
+ if (isPrimitive(val)) {
+ return val;
+ }
+ }
+ toStr = input.toString;
+ if (isFunction(toStr)) {
+ val = toStr.call(input);
+ if (isPrimitive(val)) {
+ return val;
+ }
+ }
+ throw new TypeError();
+ }
// ES5 9.9
// http://es5.github.com/#x9.9
-var toObject = function (o) {
- if (o == null) { // this matches both null and undefined
- throw new TypeError("can't convert "+o+" to object");
- }
- return Object(o);
-};
+ var toObject = function (o) {
+ if (o == null) { // this matches both null and undefined
+ throw new TypeError("can't convert " + o + " to object");
+ }
+ return Object(o);
+ };
+
+ var ToUint32 = function ToUint32(x) {
+ return x >>> 0;
+ };
})();