1406 lines
49 KiB
JavaScript
1406 lines
49 KiB
JavaScript
/*!
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* https://github.com/es-shims/es5-shim
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* @license es5-shim Copyright 2009-2014 by contributors, MIT License
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* see https://github.com/es-shims/es5-shim/blob/master/LICENSE
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*/
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// vim: ts=4 sts=4 sw=4 expandtab
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//Add semicolon to prevent IIFE from being passed as argument to concated code.
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;
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// UMD (Universal Module Definition)
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// see https://github.com/umdjs/umd/blob/master/returnExports.js
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(function (root, factory) {
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if (typeof define === 'function' && define.amd) {
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// AMD. Register as an anonymous module.
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define(factory);
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} else if (typeof exports === 'object') {
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// Node. Does not work with strict CommonJS, but
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// only CommonJS-like enviroments that support module.exports,
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// like Node.
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module.exports = factory();
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} else {
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// Browser globals (root is window)
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root.returnExports = factory();
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}
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}(this, function () {
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/**
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* Brings an environment as close to ECMAScript 5 compliance
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* as is possible with the facilities of erstwhile engines.
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*
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* Annotated ES5: http://es5.github.com/ (specific links below)
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* ES5 Spec: http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-262.pdf
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* Required reading: http://javascriptweblog.wordpress.com/2011/12/05/extending-javascript-natives/
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*/
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// Shortcut to an often accessed properties, in order to avoid multiple
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// dereference that costs universally.
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var call = Function.prototype.call;
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var prototypeOfArray = Array.prototype;
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var prototypeOfObject = Object.prototype;
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var _Array_slice_ = prototypeOfArray.slice;
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var array_splice = Array.prototype.splice;
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var array_push = Array.prototype.push;
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var array_unshift = Array.prototype.unshift;
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// Having a toString local variable name breaks in Opera so use _toString.
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var _toString = prototypeOfObject.toString;
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var isFunction = function (val) {
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return prototypeOfObject.toString.call(val) === '[object Function]';
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};
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var isRegex = function (val) {
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return prototypeOfObject.toString.call(val) === '[object RegExp]';
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};
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var isArray = function isArray(obj) {
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return _toString.call(obj) === "[object Array]";
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};
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var isArguments = function isArguments(value) {
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var str = _toString.call(value);
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var isArgs = str === '[object Arguments]';
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if (!isArgs) {
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isArgs = !isArray(str)
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&& value !== null
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&& typeof value === 'object'
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&& typeof value.length === 'number'
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&& value.length >= 0
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&& isFunction(value.callee);
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}
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return isArgs;
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};
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//
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// Function
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// ========
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//
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// ES-5 15.3.4.5
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// http://es5.github.com/#x15.3.4.5
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function Empty() {}
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if (!Function.prototype.bind) {
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Function.prototype.bind = function bind(that) { // .length is 1
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// 1. Let Target be the this value.
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var target = this;
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// 2. If IsCallable(Target) is false, throw a TypeError exception.
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if (!isFunction(target)) {
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throw new TypeError("Function.prototype.bind called on incompatible " + target);
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}
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// 3. Let A be a new (possibly empty) internal list of all of the
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// argument values provided after thisArg (arg1, arg2 etc), in order.
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// XXX slicedArgs will stand in for "A" if used
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var args = _Array_slice_.call(arguments, 1); // for normal call
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// 4. Let F be a new native ECMAScript object.
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// 11. Set the [[Prototype]] internal property of F to the standard
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// built-in Function prototype object as specified in 15.3.3.1.
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// 12. Set the [[Call]] internal property of F as described in
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// 15.3.4.5.1.
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// 13. Set the [[Construct]] internal property of F as described in
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// 15.3.4.5.2.
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// 14. Set the [[HasInstance]] internal property of F as described in
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// 15.3.4.5.3.
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var binder = function () {
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if (this instanceof bound) {
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// 15.3.4.5.2 [[Construct]]
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// When the [[Construct]] internal method of a function object,
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// F that was created using the bind function is called with a
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// list of arguments ExtraArgs, the following steps are taken:
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// 1. Let target be the value of F's [[TargetFunction]]
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// internal property.
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// 2. If target has no [[Construct]] internal method, a
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// TypeError exception is thrown.
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// 3. Let boundArgs be the value of F's [[BoundArgs]] internal
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// property.
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// 4. Let args be a new list containing the same values as the
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// list boundArgs in the same order followed by the same
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// values as the list ExtraArgs in the same order.
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// 5. Return the result of calling the [[Construct]] internal
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// method of target providing args as the arguments.
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var result = target.apply(
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this,
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args.concat(_Array_slice_.call(arguments))
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);
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if (Object(result) === result) {
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return result;
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}
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return this;
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} else {
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// 15.3.4.5.1 [[Call]]
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// When the [[Call]] internal method of a function object, F,
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// which was created using the bind function is called with a
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// this value and a list of arguments ExtraArgs, the following
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// steps are taken:
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// 1. Let boundArgs be the value of F's [[BoundArgs]] internal
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// property.
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// 2. Let boundThis be the value of F's [[BoundThis]] internal
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// property.
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// 3. Let target be the value of F's [[TargetFunction]] internal
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// property.
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// 4. Let args be a new list containing the same values as the
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// list boundArgs in the same order followed by the same
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// values as the list ExtraArgs in the same order.
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// 5. Return the result of calling the [[Call]] internal method
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// of target providing boundThis as the this value and
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// providing args as the arguments.
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// equiv: target.call(this, ...boundArgs, ...args)
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return target.apply(
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that,
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args.concat(_Array_slice_.call(arguments))
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);
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}
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};
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// 15. If the [[Class]] internal property of Target is "Function", then
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// a. Let L be the length property of Target minus the length of A.
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// b. Set the length own property of F to either 0 or L, whichever is
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// larger.
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// 16. Else set the length own property of F to 0.
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var boundLength = Math.max(0, target.length - args.length);
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// 17. Set the attributes of the length own property of F to the values
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// specified in 15.3.5.1.
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var boundArgs = [];
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for (var i = 0; i < boundLength; i++) {
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boundArgs.push("$" + i);
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}
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// XXX Build a dynamic function with desired amount of arguments is the only
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// way to set the length property of a function.
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// In environments where Content Security Policies enabled (Chrome extensions,
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// for ex.) all use of eval or Function costructor throws an exception.
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// However in all of these environments Function.prototype.bind exists
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// and so this code will never be executed.
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var bound = Function("binder", "return function (" + boundArgs.join(",") + "){return binder.apply(this,arguments)}")(binder);
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if (target.prototype) {
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Empty.prototype = target.prototype;
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bound.prototype = new Empty();
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// Clean up dangling references.
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Empty.prototype = null;
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}
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// TODO
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// 18. Set the [[Extensible]] internal property of F to true.
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// TODO
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// 19. Let thrower be the [[ThrowTypeError]] function Object (13.2.3).
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// 20. Call the [[DefineOwnProperty]] internal method of F with
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// arguments "caller", PropertyDescriptor {[[Get]]: thrower, [[Set]]:
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// thrower, [[Enumerable]]: false, [[Configurable]]: false}, and
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// false.
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// 21. Call the [[DefineOwnProperty]] internal method of F with
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// arguments "arguments", PropertyDescriptor {[[Get]]: thrower,
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// [[Set]]: thrower, [[Enumerable]]: false, [[Configurable]]: false},
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// and false.
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// TODO
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// NOTE Function objects created using Function.prototype.bind do not
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// have a prototype property or the [[Code]], [[FormalParameters]], and
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// [[Scope]] internal properties.
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// XXX can't delete prototype in pure-js.
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// 22. Return F.
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return bound;
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};
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}
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// _Please note: Shortcuts are defined after `Function.prototype.bind` as we
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// us it in defining shortcuts.
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var owns = call.bind(prototypeOfObject.hasOwnProperty);
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// If JS engine supports accessors creating shortcuts.
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var defineGetter;
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var defineSetter;
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var lookupGetter;
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var lookupSetter;
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var supportsAccessors;
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if ((supportsAccessors = owns(prototypeOfObject, "__defineGetter__"))) {
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defineGetter = call.bind(prototypeOfObject.__defineGetter__);
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defineSetter = call.bind(prototypeOfObject.__defineSetter__);
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lookupGetter = call.bind(prototypeOfObject.__lookupGetter__);
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lookupSetter = call.bind(prototypeOfObject.__lookupSetter__);
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}
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//
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// Array
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// =====
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//
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// ES5 15.4.4.12
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// http://es5.github.com/#x15.4.4.12
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var spliceWorksWithEmptyObject = (function () {
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var obj = {};
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Array.prototype.splice.call(obj, 0, 0, 1);
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return obj.length === 1;
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}());
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var omittingSecondSpliceArgIsNoop = [1].splice(0).length === 0;
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var spliceNoopReturnsEmptyArray = (function () {
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var a = [1, 2];
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var result = a.splice();
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return a.length === 2 && isArray(result) && result.length === 0;
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}());
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if (spliceNoopReturnsEmptyArray) {
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// Safari 5.0 bug where .split() returns undefined
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Array.prototype.splice = function splice(start, deleteCount) {
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if (arguments.length === 0) { return []; }
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else { return array_splice.apply(this, arguments); }
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};
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}
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if (!omittingSecondSpliceArgIsNoop || !spliceWorksWithEmptyObject) {
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Array.prototype.splice = function splice(start, deleteCount) {
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if (arguments.length === 0) { return []; }
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var args = arguments;
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this.length = Math.max(toInteger(this.length), 0);
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if (arguments.length > 0 && typeof deleteCount !== 'number') {
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args = _Array_slice_.call(arguments);
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if (args.length < 2) { args.push(toInteger(deleteCount)); }
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else { args[1] = toInteger(deleteCount); }
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}
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return array_splice.apply(this, args);
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};
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}
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// ES5 15.4.4.12
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// http://es5.github.com/#x15.4.4.13
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// Return len+argCount.
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// [bugfix, ielt8]
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// IE < 8 bug: [].unshift(0) === undefined but should be "1"
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if ([].unshift(0) !== 1) {
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Array.prototype.unshift = function () {
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array_unshift.apply(this, arguments);
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return this.length;
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};
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}
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// ES5 15.4.3.2
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// http://es5.github.com/#x15.4.3.2
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// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/isArray
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if (!Array.isArray) {
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Array.isArray = isArray;
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}
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// The IsCallable() check in the Array functions
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// has been replaced with a strict check on the
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// internal class of the object to trap cases where
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// the provided function was actually a regular
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// expression literal, which in V8 and
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// JavaScriptCore is a typeof "function". Only in
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// V8 are regular expression literals permitted as
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// reduce parameters, so it is desirable in the
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// general case for the shim to match the more
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// strict and common behavior of rejecting regular
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// expressions.
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// ES5 15.4.4.18
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// http://es5.github.com/#x15.4.4.18
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// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/array/forEach
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// Check failure of by-index access of string characters (IE < 9)
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// and failure of `0 in boxedString` (Rhino)
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var boxedString = Object("a");
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var splitString = boxedString[0] !== "a" || !(0 in boxedString);
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var properlyBoxesContext = function properlyBoxed(method) {
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// Check node 0.6.21 bug where third parameter is not boxed
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var properlyBoxesNonStrict = true;
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var properlyBoxesStrict = true;
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if (method) {
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method.call('foo', function (_, __, context) {
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if (typeof context !== 'object') { properlyBoxesNonStrict = false; }
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});
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method.call([1], function () {
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'use strict';
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properlyBoxesStrict = typeof this === 'string';
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}, 'x');
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}
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return !!method && properlyBoxesNonStrict && properlyBoxesStrict;
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};
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if (!Array.prototype.forEach || !properlyBoxesContext(Array.prototype.forEach)) {
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Array.prototype.forEach = function forEach(fun /*, thisp*/) {
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var object = toObject(this),
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self = splitString && _toString.call(this) === "[object String]" ?
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this.split("") :
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object,
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thisp = arguments[1],
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i = -1,
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length = self.length >>> 0;
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// If no callback function or if callback is not a callable function
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if (!isFunction(fun)) {
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throw new TypeError(); // TODO message
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}
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while (++i < length) {
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if (i in self) {
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// Invoke the callback function with call, passing arguments:
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// context, property value, property key, thisArg object
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// context
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fun.call(thisp, self[i], i, object);
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}
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}
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};
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}
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// ES5 15.4.4.19
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// http://es5.github.com/#x15.4.4.19
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// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/map
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if (!Array.prototype.map || !properlyBoxesContext(Array.prototype.map)) {
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Array.prototype.map = function map(fun /*, thisp*/) {
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var object = toObject(this),
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self = splitString && _toString.call(this) === "[object String]" ?
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this.split("") :
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object,
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length = self.length >>> 0,
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result = Array(length),
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thisp = arguments[1];
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// If no callback function or if callback is not a callable function
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if (!isFunction(fun)) {
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throw new TypeError(fun + " is not a function");
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}
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for (var i = 0; i < length; i++) {
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if (i in self) {
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result[i] = fun.call(thisp, self[i], i, object);
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}
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}
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return result;
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};
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}
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// ES5 15.4.4.20
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// http://es5.github.com/#x15.4.4.20
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// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/filter
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if (!Array.prototype.filter || !properlyBoxesContext(Array.prototype.filter)) {
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Array.prototype.filter = function filter(fun /*, thisp */) {
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var object = toObject(this),
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self = splitString && _toString.call(this) === "[object String]" ?
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this.split("") :
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object,
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length = self.length >>> 0,
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result = [],
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value,
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thisp = arguments[1];
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// If no callback function or if callback is not a callable function
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if (!isFunction(fun)) {
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throw new TypeError(fun + " is not a function");
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}
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for (var i = 0; i < length; i++) {
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if (i in self) {
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value = self[i];
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if (fun.call(thisp, value, i, object)) {
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result.push(value);
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}
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}
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}
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return result;
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};
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}
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// ES5 15.4.4.16
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// http://es5.github.com/#x15.4.4.16
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// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/every
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if (!Array.prototype.every || !properlyBoxesContext(Array.prototype.every)) {
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Array.prototype.every = function every(fun /*, thisp */) {
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var object = toObject(this),
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self = splitString && _toString.call(this) === "[object String]" ?
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this.split("") :
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object,
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length = self.length >>> 0,
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thisp = arguments[1];
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|
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// If no callback function or if callback is not a callable function
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if (!isFunction(fun)) {
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throw new TypeError(fun + " is not a function");
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}
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for (var i = 0; i < length; i++) {
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if (i in self && !fun.call(thisp, self[i], i, object)) {
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return false;
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}
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}
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return true;
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};
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}
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|
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// ES5 15.4.4.17
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// http://es5.github.com/#x15.4.4.17
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// https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/some
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if (!Array.prototype.some || !properlyBoxesContext(Array.prototype.some)) {
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Array.prototype.some = function some(fun /*, thisp */) {
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var object = toObject(this),
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self = splitString && _toString.call(this) === "[object String]" ?
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this.split("") :
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object,
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length = self.length >>> 0,
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thisp = arguments[1];
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|
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// If no callback function or if callback is not a callable function
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if (!isFunction(fun)) {
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throw new TypeError(fun + " is not a function");
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}
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for (var i = 0; i < length; i++) {
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if (i in self && fun.call(thisp, self[i], i, object)) {
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return true;
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}
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}
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return false;
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};
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}
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// ES5 15.4.4.21
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// http://es5.github.com/#x15.4.4.21
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// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduce
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var reduceCoercesToObject = false;
|
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if (Array.prototype.reduce) {
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reduceCoercesToObject = typeof Array.prototype.reduce.call('es5', function (_, __, ___, list) { return list; }) === 'object';
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}
|
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if (!Array.prototype.reduce || !reduceCoercesToObject) {
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Array.prototype.reduce = function reduce(fun /*, initial*/) {
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var object = toObject(this),
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self = splitString && _toString.call(this) === "[object String]" ?
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this.split("") :
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object,
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length = self.length >>> 0;
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|
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// If no callback function or if callback is not a callable function
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|
if (!isFunction(fun)) {
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throw new TypeError(fun + " is not a function");
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}
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|
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// no value to return if no initial value and an empty array
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if (!length && arguments.length === 1) {
|
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throw new TypeError("reduce of empty array with no initial value");
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}
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var i = 0;
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|
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);
|
|
}
|
|
|
|
for (; i < length; i++) {
|
|
if (i in self) {
|
|
result = fun.call(void 0, result, self[i], i, object);
|
|
}
|
|
}
|
|
|
|
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
|
|
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 (!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");
|
|
}
|
|
|
|
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 (i < 0) {
|
|
return result;
|
|
}
|
|
|
|
do {
|
|
if (i in self) {
|
|
result = fun.call(void 0, result, self[i], i, object);
|
|
}
|
|
} while (i--);
|
|
|
|
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.call(this) === "[object String]" ?
|
|
this.split("") :
|
|
toObject(this),
|
|
length = self.length >>> 0;
|
|
|
|
if (!length) {
|
|
return -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;
|
|
};
|
|
}
|
|
|
|
// 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.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;
|
|
};
|
|
}
|
|
|
|
//
|
|
// Object
|
|
// ======
|
|
//
|
|
|
|
// ES5 15.2.3.14
|
|
// http://es5.github.com/#x15.2.3.14
|
|
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;
|
|
|
|
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]';
|
|
|
|
if (!isObject && !isFn && !isArgs) {
|
|
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));
|
|
}
|
|
}
|
|
}
|
|
|
|
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);
|
|
}
|
|
};
|
|
}
|
|
|
|
//
|
|
// Date
|
|
// ====
|
|
//
|
|
|
|
// ES5 15.9.5.43
|
|
// http://es5.github.com/#x15.9.5.43
|
|
// 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.");
|
|
}
|
|
|
|
year = this.getUTCFullYear();
|
|
|
|
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)
|
|
);
|
|
|
|
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:
|
|
|
|
// 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 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
|
|
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);
|
|
}
|
|
|
|
// 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
|
|
];
|
|
|
|
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 toUTC(t) {
|
|
return Number(new NativeDate(1970, 0, 1, 0, 0, 0, t));
|
|
}
|
|
|
|
// Copy any custom methods a 3rd party library may have added
|
|
for (var key in NativeDate) {
|
|
Date[key] = NativeDate[key];
|
|
}
|
|
|
|
// 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;
|
|
|
|
// 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();
|
|
};
|
|
}
|
|
|
|
|
|
//
|
|
// 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;
|
|
|
|
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 divide(n) {
|
|
var i = size, c = 0;
|
|
while (--i >= 0) {
|
|
c += data[i];
|
|
data[i] = Math.floor(c / n);
|
|
c = (c % n) * base;
|
|
}
|
|
}
|
|
|
|
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 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 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);
|
|
|
|
if (f < 0 || f > 20) {
|
|
throw new RangeError("Number.toFixed called with invalid number of decimals");
|
|
}
|
|
|
|
x = Number(this);
|
|
|
|
// 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);
|
|
}
|
|
|
|
s = "";
|
|
|
|
if (x < 0) {
|
|
s = "-";
|
|
x = -x;
|
|
}
|
|
|
|
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;
|
|
|
|
// -18 < e < 122
|
|
// x = z / 2 ^ e
|
|
if (e > 0) {
|
|
multiply(0, z);
|
|
j = f;
|
|
|
|
while (j >= 7) {
|
|
multiply(1e7, 0);
|
|
j -= 7;
|
|
}
|
|
|
|
multiply(pow(10, j, 1), 0);
|
|
j = e - 1;
|
|
|
|
while (j >= 23) {
|
|
divide(1 << 23);
|
|
j -= 23;
|
|
}
|
|
|
|
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 (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;
|
|
};
|
|
}());
|
|
}
|
|
|
|
|
|
//
|
|
// 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 ["", "", "."]
|
|
|
|
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 [];
|
|
}
|
|
|
|
// 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
|
|
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 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
|
|
// 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 substr(start, length) {
|
|
return string_substr.call(
|
|
this,
|
|
start < 0 ? ((start = this.length + start) < 0 ? 0 : start) : start,
|
|
length
|
|
);
|
|
};
|
|
}
|
|
|
|
// ES5 15.5.4.20
|
|
// 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 isPrimitive(input) {
|
|
var type = typeof input;
|
|
return (
|
|
input === null ||
|
|
type === "undefined" ||
|
|
type === "boolean" ||
|
|
type === "number" ||
|
|
type === "string"
|
|
);
|
|
}
|
|
|
|
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 ToUint32 = function ToUint32(x) {
|
|
return x >>> 0;
|
|
};
|
|
|
|
}));
|