5 "url": "http://wiki.ecmascript.org/doku.php?id=harmony:specification_drafts",
6 "keywords": ["es6", "es2015", "ecmascript"]
10 "url": "https://github.com/tc39/ecma262",
11 "keywords": ["es7", "ecmascript"]
14 "name": "Internationalization API",
16 "status": "Work in progress"
18 "url": "http://ecma-international.org/publications/standards/Ecma-402.htm",
19 "documentation-url": "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Intl",
20 "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=90906",
21 "description": "The Internationalization API provides language sensitive operations for string, number, and date.",
22 "keywords": ["Intl", "Collator", "ECMA-402"],
24 "name": "Andy VanWagoner",
25 "email": "thetalecrafter@gmail.com",
26 "twitter": "@thetalecrafter"
35 "status": "Continuously improving",
36 "enabled-by-default": true
38 "url": "http://asmjs.org",
39 "description": "ASM.js defines a subset of JavaScript that enforce stronger typing and has specific patterns of memory access. ASM.js is rarely hand-written, it is typically generated from other languages by compiler such as Emscripten.",
40 "comment": "There is no \"use asm\" mode in JavaScriptCore. Instead WebKit integrates ASM.js optimizations directly in the optimizer. As a result, it is possible to mix ASM-style typing with regular code and still get great performance and power efficiency."
43 "name": "Array.prototype.copyWithin",
46 "enabled-by-default": true
48 "url": "https://people.mozilla.org/~jorendorff/es6-draft.html#sec-array.prototype.copywithin",
49 "documentation-url": "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/copyWithin",
50 "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=145107",
51 "specification": "ES6",
53 "name": "Yusuke Suzuki",
54 "email": "utatane.tea@gmail.com"
58 "name": "Array.prototype.includes",
61 "enabled-by-default": true
63 "url": "https://github.com/tc39/Array.prototype.includes",
64 "documentation-url": "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/includes",
65 "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=142707",
66 "specification": "ES7"
72 "enabled-by-default": true
74 "url": "https://people.mozilla.org/~jorendorff/es6-draft.html#sec-class-definitions",
75 "documentation-url": "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes",
76 "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=142774",
77 "specification": "ES6",
78 "description": "The new class syntax of ES6 provides a new syntax to define and extend JavaScript objects. The class syntax is a new notation, objects still use prototypal inheritance."
81 "name": "Map data structure",
84 "enabled-by-default": true
86 "url": "http://people.mozilla.org/~jorendorff/es6-draft.html#sec-map-constructor",
87 "documentation-url": "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map",
88 "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=120333",
89 "description": "Map provides an <a href=\"https://en.wikipedia.org/wiki/Associative_array\">associative array data</a> structure that maps keys to values.",
90 "specification": "ES6"
93 "name": "Number extensions (ES6)",
96 "enabled-by-default": true
98 "url": "http://people.mozilla.org/~jorendorff/es6-draft.html#sec-number-objects",
99 "documentation-url": "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number",
100 "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=131707",
101 "specification": "ES6",
102 "description": "ES6 extend Number with the methods Number.isFinite(), Number.isInteger(), Number.isSafeInteger(), Number.isNaN() and the attributes Number.EPSILON, Number.MIN_SAFE_INTEGER, Number.MAX_SAFE_INTEGER."
105 "name": "Octal and binary literals",
108 "enabled-by-default": true
110 "url": "https://people.mozilla.org/~jorendorff/es6-draft.html#sec-literals-numeric-literals",
111 "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=142681",
112 "specification": "ES6",
113 "description": "New syntax for number literals. Numbers can be provided as binary (e.g. 0b001001) or octal (e.g. 0o24)."
116 "name": "Promise Objects",
119 "enabled-by-default": true,
120 "shipped": ["ios8-safari", "osx-safari-7.1"]
122 "url": "https://people.mozilla.org/~jorendorff/es6-draft.html#sec-promise-objects",
123 "documentation-url": "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise",
124 "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=120260",
125 "specification": "ES6"
128 "name": "Set data structure",
131 "enabled-by-default": true
133 "url": "https://people.mozilla.org/~jorendorff/es6-draft.html#sec-set-constructor",
134 "documentation-url": "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set",
135 "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=120549",
136 "description": "Set is a collection of unique objects.",
137 "specification": "ES6"
140 "name": "Symbol Objects",
143 "enabled-by-default": true
145 "url": "https://people.mozilla.org/~jorendorff/es6-draft.html#sec-symbol-objects",
146 "documentation-url": "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol",
147 "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=140435",
148 "specification": "ES6",
150 "name": "Yusuke Suzuki",
151 "email": "utatane.tea@gmail.com"
155 "name": "Tagged templates",
158 "enabled-by-default": true
160 "url": "http://people.mozilla.org/~jorendorff/es6-draft.html#sec-tagged-templates",
161 "documentation-url": "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/template_strings",
162 "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=143183",
163 "description": "The tagged-templates (like String.raw`Hello ${World}`) provides a way to modify the produced string from a given template-literals with a function.",
164 "specification": "ES6",
166 "name": "Yusuke Suzuki",
167 "email": "utatane.tea@gmail.com"
171 "name": "Template literals",
174 "enabled-by-default": true
176 "url": "http://people.mozilla.org/~jorendorff/es6-draft.html#sec-template-literals",
177 "documentation-url": "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/template_strings",
178 "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=142691",
179 "description": "The template-literals (like `Hello ${World}`) provides string interpolation feature. Line terminators are also allowed in the template-literals.",
180 "specification": "ES6",
182 "name": "Yusuke Suzuki",
183 "email": "utatane.tea@gmail.com"
190 "enabled-by-default": true
192 "url": "http://people.mozilla.org/~jorendorff/es6-draft.html#sec-weakmap-objects",
193 "documentation-url": "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakMap",
194 "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=120912",
195 "description": "WeakMap provides an <a href=\"https://en.wikipedia.org/wiki/Associative_array\">associative array data</a> structure that maps keys to values. WeakMap's keys must be objects.",
196 "specification": "ES6"
202 "enabled-by-default": true
204 "url": "http://people.mozilla.org/~jorendorff/es6-draft.html#sec-weakset-objects",
205 "documentation-url": "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/WeakSet",
206 "webkit-url": "https://bugs.webkit.org/show_bug.cgi?id=142408",
207 "description": "WeakSet is a collection of unique objects. Keys stored in WeakSet are referenced weakly.",
208 "specification": "ES6",
210 "name": "Yusuke Suzuki",
211 "email": "utatane.tea@gmail.com"
215 "name": "for...of loops",
218 "enabled-by-default": true
220 "url": "http://people.mozilla.org/~jorendorff/es6-draft.html#sec-for-in-and-for-of-statements",
221 "documentation-url": "https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/for...of",
222 "description": "The for...of loops iterate over the values provided by the iterator of the target object.",
223 "specification": "ES6",
224 "comment": "Older versions of WebKit only supported iterating JavaScript arrays."