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{
"title":"ECMAScript 2015 (ES6)",
"description":"Support for the ECMAScript 2015 specification. Features include Promises, Modules, Classes, Template Literals, Arrow Functions, Let and Const, Default Parameters, Generators, Destructuring Assignment, Rest & Spread, Map/Set & WeakMap/WeakSet and many more.",
"spec":"https://www.ecma-international.org/ecma-262/6.0/",
"status":"other",
"links":[
{
"url":"http://es6-features.org",
"title":"ES6 New features: overview and comparisons"
},
{
"url":"http://exploringjs.com/es6/",
"title":"Exploring ES6 (book)"
},
{
"url":"https://github.com/zloirock/core-js#ecmascript",
"title":"Polyfill for all possible ES2015 features is available in the core-js library"
}
],
"bugs":[
],
"categories":[
"JS"
],
"stats":{
"ie":{
"5.5":"n",
"6":"n",
"7":"n",
"8":"n",
"9":"n",
"10":"n",
"11":"a #1 #2"
},
"edge":{
"12":"a #2",
"13":"a #2",
"14":"a #2",
"15":"y #2 #3",
"16":"y #2 #3",
"17":"y #2 #3",
"18":"y #2 #3",
"79":"y #2",
"80":"y #2"
},
"firefox":{
"2":"n",
"3":"n",
"3.5":"n",
"3.6":"n",
"4":"n",
"5":"n",
"6":"a",
"7":"a",
"8":"a",
"9":"a",
"10":"a",
"11":"a",
"12":"a",
"13":"a",
"14":"a",
"15":"a",
"16":"a",
"17":"a",
"18":"a",
"19":"a",
"20":"a",
"21":"a",
"22":"a",
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"24":"a",
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"55":"y #2",
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"59":"y #2",
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"69":"y #2",
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"72":"y #2",
"73":"y #2",
"74":"y #2",
"75":"y #2",
"76":"y #2",
"77":"y #2"
},
"chrome":{
"4":"n",
"5":"n",
"6":"n",
"7":"n",
"8":"n",
"9":"n",
"10":"n",
"11":"n",
"12":"n",
"13":"n",
"14":"n",
"15":"n",
"16":"n",
"17":"n",
"18":"n",
"19":"n",
"20":"n",
"21":"a",
"22":"a",
"23":"a",
"24":"a",
"25":"a",
"26":"a",
"27":"a",
"28":"a",
"29":"a",
"30":"a",
"31":"a",
"32":"a",
"33":"a",
"34":"a",
"35":"a",
"36":"a",
"37":"a",
"38":"a",
"39":"a",
"40":"a",
"41":"a",
"42":"a",
"43":"a",
"44":"a",
"45":"a",
"46":"a",
"47":"a",
"48":"a",
"49":"a",
"50":"a",
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"81":"y #2",
"83":"y #2",
"84":"y #2",
"85":"y #2"
},
"safari":{
"3.1":"n",
"3.2":"n",
"4":"n",
"5":"n",
"5.1":"n",
"6":"n",
"6.1":"n",
"7":"n",
"7.1":"a",
"8":"a",
"9":"a",
"9.1":"a",
"10":"y",
"10.1":"y",
"11":"y",
"11.1":"y",
"12":"y",
"12.1":"y",
"13":"y",
"13.1":"y",
"TP":"y"
},
"opera":{
"9":"n",
"9.5-9.6":"n",
"10.0-10.1":"n",
"10.5":"n",
"10.6":"n",
"11":"n",
"11.1":"n",
"11.5":"n",
"11.6":"n",
"12":"n",
"12.1":"n",
"15":"a",
"16":"a",
"17":"a",
"18":"a",
"19":"a",
"20":"a",
"21":"a",
"22":"a",
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"29":"a",
"30":"a",
"31":"a",
"32":"a",
"33":"a",
"34":"a",
"35":"a",
"36":"a",
"37":"a",
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"39":"y #2",
"40":"y #2",
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"43":"y #2",
"44":"y #2",
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"48":"y #2",
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"63":"y #2",
"64":"y #2",
"65":"y #2",
"66":"y #2"
},
"ios_saf":{
"3.2":"n",
"4.0-4.1":"n",
"4.2-4.3":"n",
"5.0-5.1":"n",
"6.0-6.1":"n",
"7.0-7.1":"a",
"8":"a",
"8.1-8.4":"a",
"9.0-9.2":"a",
"9.3":"a",
"10.0-10.2":"y",
"10.3":"y",
"11.0-11.2":"y",
"11.3-11.4":"y",
"12.0-12.1":"y",
"12.2-12.4":"y",
"13.0-13.1":"y",
"13.2":"y",
"13.3":"y",
"13.4":"y"
},
"op_mini":{
"all":"n"
},
"android":{
"2.1":"n",
"2.2":"n",
"2.3":"n",
"3":"n",
"4":"n",
"4.1":"n",
"4.2-4.3":"n",
"4.4":"a",
"4.4.3-4.4.4":"a",
"80":"y #2"
},
"bb":{
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"10":"a"
},
"op_mob":{
"10":"n",
"11":"n",
"11.1":"n",
"11.5":"n",
"12":"n",
"12.1":"n",
"46":"y #2"
},
"and_chr":{
"80":"y #2"
},
"and_ff":{
"68":"y #2"
},
"ie_mob":{
"10":"n",
"11":"a #1 #2"
},
"and_uc":{
"12.12":"y #2"
},
"samsung":{
"4":"a",
"5.0-5.4":"y #2",
"6.2-6.4":"y #2",
"7.2-7.4":"y #2",
"8.2":"y #2",
"9.2":"y #2",
"10.1":"y #2",
"11.1":"y #2"
},
"and_qq":{
"1.2":"y #2"
},
"baidu":{
"7.12":"a"
},
"kaios":{
"2.5":"a"
}
},
"notes":"As ES6 refers to a huge specification and browsers have various levels of support, \"Supported\" means at least 95% of the spec is supported. \"Partial support\" refers to at least 10% of the spec being supported. For full details see the [Kangax ES6 support table](https://kangax.github.io/compat-table/es6/).",
"notes_by_num":{
"1":"Notable partial support in IE11 includes (at least some) support for `const`, `let`, block-level function declaration, typed arrays, `Map`, `Set` and `WeakMap`.",
"2":"Does not support [tail call optimization](https://kangax.github.io/compat-table/es6/#test-proper_tail_calls_%28tail_call_optimisation%29)",
"3":"Only has partial Symbol support and partial support for `RegExp.prototype` properties"
},
"usage_perc_y":93.09,
"usage_perc_a":3.82,
"ucprefix":false,
"parent":"",
"keywords":"javascript,block-scoped,string.prototype.includes,string.prototype.endswith,string.prototype.repeat,array.prototype.find,array.prototype.findindex,array.prototype.fill,object.assign",
"ie_id":"",
"chrome_id":"",
"firefox_id":"",
"webkit_id":"",
"shown":true
}