|
| 1 | +if (!Object.keys) { |
| 2 | + Object.keys = function (object) { |
| 3 | + var keys = []; |
| 4 | + for (var name in object) { |
| 5 | + if (Object.prototype.hasOwnProperty.call(object, name)) { |
| 6 | + keys.push(name); |
| 7 | + } |
| 8 | + } |
| 9 | + return keys; |
| 10 | + }; |
| 11 | +} |
| 12 | + |
| 13 | +if (!Object.defineProperty) |
| 14 | + Object.defineProperty = function(object, property, descriptor) { |
| 15 | + var has = Object.prototype.hasOwnProperty; |
| 16 | + if (typeof descriptor == "object") { |
| 17 | + if (has.call(descriptor, "value")) { |
| 18 | + if (!object.__lookupGetter__(property) && !object.__lookupSetter__(property)) |
| 19 | + // data property defined and no pre-existing accessors |
| 20 | + object[property] = descriptor.value; |
| 21 | + if ((has.call(descriptor, "get") || has.call(descriptor, "set"))) |
| 22 | + // descriptor has a value property but accessor already exists |
| 23 | + throw new TypeError("Object doesn't support this action"); |
| 24 | + } |
| 25 | + if ( // can't implement these features; allow false but not true |
| 26 | + !(has.call(descriptor, "writable") ? descriptor.writable : true) || |
| 27 | + !(has.call(descriptor, "enumerable") ? descriptor.enumerable : true) || |
| 28 | + !(has.call(descriptor, "configurable") ? descriptor.configurable : true) |
| 29 | + ) |
| 30 | + throw new RangeError( |
| 31 | + "This implementation of Object.defineProperty does not " + |
| 32 | + "support configurable, enumerable, or writable." |
| 33 | + ); |
| 34 | + else if (typeof descriptor.get == "function") |
| 35 | + object.__defineGetter__(property, descriptor.get); |
| 36 | + if (typeof descriptor.set == "function") |
| 37 | + object.__defineSetter__(property, descriptor.set); |
| 38 | + } |
| 39 | + return object; |
| 40 | + }; |
| 41 | + |
| 42 | +if (!Object.defineProperties) { |
| 43 | + Object.defineProperties = function(object, properties) { |
| 44 | + for (var property in properties) { |
| 45 | + if (Object.prototype.hasOwnProperty.call(properties, property)) |
| 46 | + Object.defineProperty(object, property, properties[property]); |
| 47 | + } |
| 48 | + return object; |
| 49 | + }; |
| 50 | +} |
| 51 | + |
| 52 | +if (!Object.create) { |
| 53 | + Object.create = function(prototype, properties) { |
| 54 | + function Type() {}; |
| 55 | + Type.prototype = prototype; |
| 56 | + var object = new Type(); |
| 57 | + if (typeof properties !== "undefined") |
| 58 | + Object.defineProperties(object, properties); |
| 59 | + return object; |
| 60 | + }; |
| 61 | +} |
| 62 | + |
| 63 | +// ES5 15.5.4.20 |
| 64 | +if (!String.prototype.trim) { |
| 65 | + // http://blog.stevenlevithan.com/archives/faster-trim-javascript |
| 66 | + var trimBeginRegexp = /^\s\s*/; |
| 67 | + var trimEndRegexp = /\s\s*$/; |
| 68 | + String.prototype.trim = function () { |
| 69 | + return String(this).replace(trimBeginRegexp, '').replace(trimEndRegexp, ''); |
| 70 | + }; |
| 71 | +} |
| 72 | +// Array additions. |
| 73 | + |
| 74 | +// ES5 draft: |
| 75 | +// http://www.ecma-international.org/publications/files/drafts/tc39-2009-025.pdf |
| 76 | + |
| 77 | +// ES5 15.4.3.2 |
| 78 | +if (!Array.isArray) { |
| 79 | + Array.isArray = function(obj) { |
| 80 | + return Object.prototype.toString.call(obj) == "[object Array]"; |
| 81 | + }; |
| 82 | +} |
| 83 | + |
| 84 | +// ES5 15.4.4.18 |
| 85 | +if (!Array.prototype.forEach) { |
| 86 | + Array.prototype.forEach = function(block, thisObject) { |
| 87 | + var len = this.length >>> 0; |
| 88 | + for (var i = 0; i < len; i++) { |
| 89 | + if (i in this) { |
| 90 | + block.call(thisObject, this[i], i, this); |
| 91 | + } |
| 92 | + } |
| 93 | + }; |
| 94 | +} |
| 95 | + |
| 96 | +// ES5 15.4.4.19 |
| 97 | +// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/map |
| 98 | +if (!Array.prototype.map) { |
| 99 | + Array.prototype.map = function(fun /*, thisp*/) { |
| 100 | + var len = this.length >>> 0; |
| 101 | + if (typeof fun != "function") |
| 102 | + throw new TypeError(); |
| 103 | + |
| 104 | + var res = new Array(len); |
| 105 | + var thisp = arguments[1]; |
| 106 | + for (var i = 0; i < len; i++) { |
| 107 | + if (i in this) |
| 108 | + res[i] = fun.call(thisp, this[i], i, this); |
| 109 | + } |
| 110 | + |
| 111 | + return res; |
| 112 | + }; |
| 113 | +} |
| 114 | + |
| 115 | +// filter |
| 116 | +if (!Array.prototype.filter) { |
| 117 | + Array.prototype.filter = function (block /*, thisp */) { |
| 118 | + var values = []; |
| 119 | + var thisp = arguments[1]; |
| 120 | + for (var i = 0; i < this.length; i++) |
| 121 | + if (block.call(thisp, this[i])) |
| 122 | + values.push(this[i]); |
| 123 | + return values; |
| 124 | + }; |
| 125 | +} |
| 126 | + |
| 127 | +// every |
| 128 | +if (!Array.prototype.every) { |
| 129 | + Array.prototype.every = function (block /*, thisp */) { |
| 130 | + var thisp = arguments[1]; |
| 131 | + for (var i = 0; i < this.length; i++) |
| 132 | + if (!block.call(thisp, this[i])) |
| 133 | + return false; |
| 134 | + return true; |
| 135 | + }; |
| 136 | +} |
| 137 | + |
| 138 | +// some |
| 139 | +if (!Array.prototype.some) { |
| 140 | + Array.prototype.some = function (block /*, thisp */) { |
| 141 | + var thisp = arguments[1]; |
| 142 | + for (var i = 0; i < this.length; i++) |
| 143 | + if (block.call(thisp, this[i])) |
| 144 | + return true; |
| 145 | + return false; |
| 146 | + }; |
| 147 | +} |
| 148 | + |
| 149 | +// reduce |
| 150 | +// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduce |
| 151 | +if (!Array.prototype.reduce) { |
| 152 | + Array.prototype.reduce = function(fun /*, initial*/) { |
| 153 | + var len = this.length >>> 0; |
| 154 | + if (typeof fun != "function") |
| 155 | + throw new TypeError(); |
| 156 | + |
| 157 | + // no value to return if no initial value and an empty array |
| 158 | + if (len == 0 && arguments.length == 1) |
| 159 | + throw new TypeError(); |
| 160 | + |
| 161 | + var i = 0; |
| 162 | + if (arguments.length >= 2) { |
| 163 | + var rv = arguments[1]; |
| 164 | + } else { |
| 165 | + do { |
| 166 | + if (i in this) { |
| 167 | + rv = this[i++]; |
| 168 | + break; |
| 169 | + } |
| 170 | + |
| 171 | + // if array contains no values, no initial value to return |
| 172 | + if (++i >= len) |
| 173 | + throw new TypeError(); |
| 174 | + } while (true); |
| 175 | + } |
| 176 | + |
| 177 | + for (; i < len; i++) { |
| 178 | + if (i in this) |
| 179 | + rv = fun.call(null, rv, this[i], i, this); |
| 180 | + } |
| 181 | + |
| 182 | + return rv; |
| 183 | + }; |
| 184 | +} |
| 185 | + |
| 186 | +// reduceRight |
| 187 | +// https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Objects/Array/reduceRight |
| 188 | +if (!Array.prototype.reduceRight) { |
| 189 | + Array.prototype.reduceRight = function(fun /*, initial*/) { |
| 190 | + var len = this.length >>> 0; |
| 191 | + if (typeof fun != "function") |
| 192 | + throw new TypeError(); |
| 193 | + |
| 194 | + // no value to return if no initial value, empty array |
| 195 | + if (len == 0 && arguments.length == 1) |
| 196 | + throw new TypeError(); |
| 197 | + |
| 198 | + var i = len - 1; |
| 199 | + if (arguments.length >= 2) { |
| 200 | + var rv = arguments[1]; |
| 201 | + } else { |
| 202 | + do { |
| 203 | + if (i in this) { |
| 204 | + rv = this[i--]; |
| 205 | + break; |
| 206 | + } |
| 207 | + |
| 208 | + // if array contains no values, no initial value to return |
| 209 | + if (--i < 0) |
| 210 | + throw new TypeError(); |
| 211 | + } while (true); |
| 212 | + } |
| 213 | + |
| 214 | + for (; i >= 0; i--) { |
| 215 | + if (i in this) |
| 216 | + rv = fun.call(null, rv, this[i], i, this); |
| 217 | + } |
| 218 | + |
| 219 | + return rv; |
| 220 | + }; |
| 221 | +} |
| 222 | + |
| 223 | +if(!Array.prototype.indexOf){ |
| 224 | + Array.prototype.indexOf = function(obj){ |
| 225 | + for(var i=0; i<this.length; i++){ |
| 226 | + if(this[i]==obj){ |
| 227 | + return i; |
| 228 | + } |
| 229 | + } |
| 230 | + return -1; |
| 231 | + } |
| 232 | +} |
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