{"id":1273,"date":"2018-09-24T02:01:52","date_gmt":"2018-09-23T17:01:52","guid":{"rendered":"https:\/\/blog.capilano-fw.com\/?p=1273"},"modified":"2021-03-04T02:44:28","modified_gmt":"2021-03-03T17:44:28","slug":"%e6%b3%a8%e6%84%8f%ef%bc%81ie11%e3%81%a7%e4%bd%bf%e3%81%88%e3%81%aa%e3%81%84%e6%9c%80%e6%96%b0javascrit%e3%82%b3%e3%83%bc%e3%83%89%ef%bc%88es6%ef%bc%89","status":"publish","type":"post","link":"https:\/\/blog.capilano-fw.com\/?p=1273","title":{"rendered":"\u6ce8\u610f\uff01IE11\u3067\u4f7f\u3048\u306a\u3044\u6700\u65b0JavaScrit\u30b3\u30fc\u30c9\uff08ES6\uff09"},"content":{"rendered":"

\u3055\u3066\u3055\u3066\u3001\u524d\u56de\u306e\u8a18\u4e8b\u3001\u5b8c\u5168\u306a\u624b\u9806\uff01VueJS\u3067\u81ea\u52d5\u30da\u30fc\u30b8\u9001\u308a\u3059\u308b\u65b9\u6cd5<\/a>\u3067\u306f\u3001ES6\u3092\u4f7f\u3063\u3066\u30da\u30fc\u30b8\u9001\u308a\u6a5f\u80fd\u3092\u5b9f\u88c5\u3057\u3066\u307f\u307e\u3057\u305f\u304c\u3001\u305d\u306e\u969b\u3075\u3068\u7591\u554f\u306b\u601d\u3063\u305f\u3053\u3068\u304c\u3042\u308a\u307e\u3057\u305f\u3002<\/p>\n

\u305d\u308c\u306f\u3001<\/p>\n

\u30a4\u30f3\u30bf\u30fc\u30cd\u30c3\u30c8\u30a8\u30af\u30b9\u30d7\u30ed\u30fc\u30e9\u30fc11\uff08IE 11\uff09\u3060\u3068\u3001\u3069\u3093\u306aES\uff16\u306e\u8a18\u8ff0\u304c\u3067\u304d\u308b\u3093\u3060\u308d\u3046\uff1f\uff1f<\/strong><\/p>\n

\u3068\u3044\u3046\u3082\u306e\u3067\u3059\u3002<\/p>\n

IE<\/code>\u3068\u3044\u3048\u3070\u3001\u5f53\u306e\u30de\u30a4\u30af\u30ed\u30bd\u30d5\u30c8\u3067\u3055\u3048edge<\/code>\u3078\u306e\u79fb\u884c\u3092\u3059\u3059\u3081\u3066\u3044\u308b\u3001\u3082\u306f\u3084\u30ec\u30ac\u30b7\u30fc\u306a\u30d6\u30e9\u30a6\u30b6\u3067\u3059\u304c\u3001\u672a\u3060\u306b\u4e00\u5b9a\u6570\u4ee5\u4e0a\u306e\u30b7\u30a7\u30a2\u3092\u6301\u3063\u3066\u3044\u308b\u3053\u3068\u304b\u3089\u3001\u3069\u3046\u3057\u3066\u3082\u53e4\u3044JavaScript\u306e\u66f8\u304d\u65b9\u3092\u305b\u3056\u308b\u3092\u5f97\u306a\u3044\u306e\u304c\u73fe\u72b6\u3067\u3059\u3002\uff08Bable\u3068\u304b\u306fIE\u3078\u306e\u5bfe\u5fdc\u3068\u3044\u3046\u610f\u5473\u5408\u3044\u304c\u5927\u304d\u3044\u3067\u3059\u306d\uff09<\/p>\n

\u305d\u3053\u3067\uff01\u4eca\u56de\u306f\u3001\u5b9f\u969b\u306bIE11<\/code>\u3067ES6<\/code>\u306e\u4e3b\u8981\u306a\u66f8\u304d\u65b9\u3092\u5b9f\u884c\u3057\u3001\u3046\u307e\u304f\u3044\u304f\u304b\u3069\u3046\u304b\u3092\u3072\u3068\u3064\u305a\u3064\u691c\u8a3c\u3057\u3066\u307f\u307e\u3059\u3002\uff08\u305d\u3057\u3066\u3001\u305b\u3063\u304b\u304f\u306a\u306e\u3067edge<\/code>\u3067\u3082\u691c\u8a3c\u3057\u3066\u307f\u307e\u3057\u305f\u3002\uff09<\/p>\n

\u305c\u3072\u958b\u767a\u306e\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

\"\"\u300c\u3072\u3055\u3073\u3055\u306bVirtualBox\u3092\u8d77\u52d5\u3059\u308b\u305e\u266a\u300d<\/p>\n

\u203b\u5b9f\u884c\u74b0\u5883\u306fIE\u304c11.15.16299.0<\/code>\u3001edge\u304c41.16299.15.0<\/code>\u3067\u3059\u3002<\/p>\n

let \u3067\u5909\u6570\u3092\u6307\u5b9a\u3057\u3066\u307f\u308b<\/h1>\n
let <\/strong>letArg = '\u300clet\u300d\u304c\u4f7f\u3048\u307e\u3059\uff01';\r\ndocument.write(letArg);<\/pre>\n
IE\uff1a\u00a0 \u6210\u529f\uff01
\n<\/strong>edge\uff1a \u6210\u529f\uff01<\/strong><\/p>\n
\u3068\u3082\u306b\u6210\u529f\u3057\u307e\u3057\u305f\u3002<\/p>\n
const \u3067\u5909\u6570\u3092\u6307\u5b9a\u3057\u3066\u307f\u308b<\/h1>\n
const <\/strong>constArg = '\u300cconst\u300d\u304c\u4f7f\u3048\u307e\u3059\uff01';\r\ndocument.write(constArg);<\/pre>\n
IE\uff1a\u00a0 \u6210\u529f\uff01
\n<\/strong>edge\uff1a \u6210\u529f\uff01
\n<\/strong><\/p>\n
let<\/code>\u3068\u540c\u3058\u304f\u3069\u3061\u3089\u3082\u6210\u529f\u3067\u3059\u3002<\/p>\n
\u3010\u8ffd\u8a18\uff1a2021.03.04\u3011<\/strong>
\n\u8a2a\u554f\u30e6\u30fc\u30b6\u30fc\u3055\u3093\u304b\u3089\u3054\u6307\u6458\u3092\u3044\u305f\u3060\u304d\u307e\u3057\u3066\u3001IE 11<\/code>\u3067\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306bfor()<\/code>\u306e\u4e2d\u3067\u306f\u4f7f\u3048\u306a\u3044\u3088\u3046\u3067\u3059\u306e\u3067\u8ffd\u8a18\u3055\u305b\u3066\u3044\u305f\u3060\u304d\u307e\u3059\u3002<\/p>\n
\u7686\u3055\u3093\u3001\u8cb4\u91cd\u306a\u60c5\u5831\u3044\u3064\u3082\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\u3002\ud83d\ude0a\u2728<\/p>\n
const items =  { a: 1, b: 2, c: 3 };\r\n\r\nfor(const<\/strong> key in items) { \/\/ \u26a0\u3053\u3053\u306e const \u306f IE 11 \u3067\u306f\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/strong>\r\n\r\n    console.log(key);\r\n\r\n}\r\n<\/pre>\n
\u203b \u306a\u304a\u3001Can I use<\/code>\u306b\u3088\u308b\u3068for \u301c in<\/code>\u3060\u3051\u3067\u306a\u304f\u3001for \u301c of<\/code>\u3082IE 11<\/code>\u3067\u306f\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u306a\u3044\u3088\u3046\u3067\u3059\u3002<\/p>\n
\ud83d\udcdd\u53c2\u8003URL:<\/strong> https:\/\/caniuse.com\/?search=const<\/a><\/p>\n
\u95a2\u6570\u306e\u30c7\u30d5\u30a9\u30eb\u30c8\u5024\u3092\u3064\u3051\u3066\u307f\u308b<\/h1>\n
function test(x, y = 5<\/strong>) {\r\n\r\n    return x + y;\r\n\r\n}\r\ndocument.write(test(3));<\/pre>\n
IE\uff1a \u5931\u6557…<\/strong><\/p>\n
\u4e0a\u306e\u30b3\u30fc\u30c9\u306f\u52d5\u3051\u3070\u300c8\u300d\u304c\u8868\u793a\u3055\u308c\u307e\u3059\u304c\u3001IE11\u3067\u306f\u4ee5\u4e0b\u306e\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002<\/p>\n
\"\"<\/p>\n
edge\u306e\u5b9f\u884c\u7d50\u679c\uff1a \u6210\u529f\uff01<\/strong><\/p>\n
\u30a2\u30ed\u30fc\u95a2\u6570\u3092\u5b9f\u884c\u3057\u3066\u307f\u308b<\/h1>\n
var arrow = () => {\r\n\r\n    return '\u30a2\u30ed\u30fc\u95a2\u6570\u304c\u4f7f\u3048\u307e\u3059\uff01';\r\n\r\n};<\/strong>\r\ndocument.write(arrow());<\/pre>\n
IE\uff1a \u5931\u6557…<\/strong><\/p>\n
ES6<\/code>\u306e\u4ee3\u8868\u7684\u306a\u65b0\u6a5f\u80fd\u3068\u3044\u3063\u3066\u3082\u3044\u3044\u30a2\u30ed\u30fc\u95a2\u6570\u3067\u3059\u304c\u3001\u3053\u308c\u3082IE11<\/code>\u3067\u306f\u30a8\u30e9\u30fc\u304c\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\"\"<\/p>\n
edge\uff1a \u6210\u529f\uff01<\/strong><\/p>\n
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u7701\u7565\u3057\u3066\u66f8\u3044\u3066\u307f\u308b<\/h1>\n
var obj = {\r\n    shortFunction()<\/strong>{\r\n\r\n        return '\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u5185\u306e\u95a2\u6570\u304c\u7701\u7565\u304c\u3067\u304d\u307e\u3059\uff01';\r\n\r\n    }\r\n};\r\ndocument.write(obj.shortFunction());<\/pre>\n
IE\uff1a \u5931\u6557…<\/strong><\/p>\n
\u3053\u306e\u8a18\u8ff0\u6cd5\u304c\u3042\u308b\u3060\u3051\u3067\u3001function<\/code>\u3092\u7701\u7565\u3067\u304d\u3066\u4e00\u6c17\u306b\u30b3\u30fc\u30c9\u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3059\u304c\u3001\u3084\u306f\u308aIE11\u3067\u306f\u3046\u307e\u304f\u52d5\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u300cSCRIPT1003: ‘:’ \u304c\u3042\u308a\u307e\u305b\u3093<\/span>\u300d\u3068\u8a00\u308f\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n
\"\"<\/p>\n
edge\uff1a \u6210\u529f\uff01<\/strong><\/p>\n
\u5f15\u6570\u3092\u4e00\u6c17\u306b\u6307\u5b9a\u3057\u3066\u307f\u308b<\/h1>\n
var setScores = function(first, second, ...rest<\/strong>) {\r\n\r\n    document.write(rest.join(',')); \/\/ 92,32,89,95,40\r\n\r\n};\r\nsetScores(80, 57, 92, 32, 89, 95, 40);<\/pre>\n
IE\uff1a \u5931\u6557…
\n<\/strong><\/p>\n
\u53ef\u5909\u7684\u306b\u5909\u6570\u306e\u6307\u5b9a\u304c\u3067\u304d\u308b\u306e\u3067\u3001\u591a\u304f\u306e\u72b6\u6cc1\u306b\u5bfe\u5fdc\u3057\u3084\u3059\u3044\u306e\u3067\u3059\u304c\u3001IE11<\/code>\u3067\u306f\u5f15\u6570\u3092\u5168\u3066\u66f8\u304d\u8fbc\u3093\u3067undefined<\/code>\u3092\u30c1\u30a7\u30c3\u30af\u3059\u308b\u3057\u304b\u306a\u3044\u3088\u3046\u3067\u3059\u3002<\/p>\n
\"\"<\/p>\n
edge\uff1a \u6210\u529f\uff01<\/strong><\/p>\n
for\u301cof \u3067\u30eb\u30fc\u30d7\u3057\u3066\u307f\u308b<\/h1>\n
for(var os of ['Windows', 'Mac', 'Linux']) {\r\n\r\n    <\/strong>document.write(os);\r\n\r\n}<\/strong><\/pre>\n
IE\uff1a \u5931\u6557…<\/strong><\/p>\n
\u30eb\u30fc\u30d7\u3067\u4e2d\u8eab\u3060\u3051\u3092\u53d6\u5f97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308bfor\u301cof<\/code>\u3082\u3068\u3066\u3082\u4fbf\u5229\u306a\u6a5f\u80fd\u3067\u3059\u304c\u3001IE\u3067\u306f\u300cSCRIPT1004: ‘:’ \u304c\u3042\u308a\u307e\u305b\u3093\u3002<\/span>\u300d\u3068\u3044\u3046\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u3066\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n
\"\"<\/p>\n
edge\uff1a \u6210\u529f\uff01<\/strong><\/p>\n
\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u8a18\u6cd5\u3067\u6587\u5b57\u5217\u3092\u3064\u304f\u3063\u3066\u307f\u308b<\/h1>\n
var name = '\u5c71\u7530\u592a\u90ce';\r\nvar age = '20\u6b73';\r\nvar template = `\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u304c\u6709\u52b9\u3067\u3059\u3002${name}\u3055\u3093\u306f\u3001${age}\u3067\u3059\u3002`;<\/strong>\r\ndocument.write(template);<\/pre>\n
IE\uff1a \u5931\u6557…
\n<\/strong><\/p>\n
\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u8a18\u6cd5\u306f\u3001Vue\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u5185\u3067\u3082\u4f7f\u3048\u308b\u3068\u3068\u3066\u3082\u4fbf\u5229\u306a\u306e\u3067\u3059\u304c\u3001IE\u3067\u306f\u300cSCRIPT1014: \u6587\u5b57\u304c\u6b63\u3057\u304f\u3042\u308a\u307e\u305b\u3093\u3002<\/span>\u300d\u3068\u3044\u3046\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n
\"\"<\/p>\n
edge\uff1a \u6210\u529f\uff01<\/strong><\/p>\n
\u8907\u6570\u306e\u5909\u6570\u3092\u4e00\u6c17\u306b\u4ee3\u5165\u3057\u3066\u307f\u308b<\/h1>\n
var [firstName, lastName] = ['\u5c71\u7530', '\u592a\u90ce'];<\/strong>\r\ndocument.write(firstName + lastName);<\/pre>\n
IE\uff1a \u5931\u6557…<\/strong><\/p>\n
Python\u306e\u3088\u3046\u306a\u5909\u6570\u306e\u6307\u5b9a\u65b9\u6cd5\u3067\u3059\u3002
\n\u5b9f\u884c\u3067\u304d\u308c\u3070\u3088\u308a\u3059\u3063\u304d\u308a\u3057\u305f\u30b3\u30fc\u30c9\u3092\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u304c\u3001IE\u3067\u306f\u300cSCRIPT1010: \u8b58\u5225\u5b50\u304c\u3042\u308a\u307e\u305b\u3093\u3002<\/span>\u300d\u3068\u3044\u3046\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u3002<\/p>\n
\"\"<\/p>\n
edge\uff1a \u6210\u529f\uff01<\/strong><\/p>\n
\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304b\u3089\u5909\u6570\u306b\u4e00\u6c17\u306b\u4ee3\u5165\u3057\u3066\u307f\u308b<\/h1>\n
var {rock, pop, jazz} = {<\/strong>\r\n    rock: '\u30ed\u30c3\u30af',<\/strong>\r\n    pop: '\u30dd\u30c3\u30d7',<\/strong>\r\n    jazz: '\u30b8\u30e3\u30ba'<\/strong>\r\n};<\/strong><\/pre>\n
IE\uff1a \u5931\u6557…<\/strong><\/p>\n
\u3053\u308c\u3082\u524d\u9805\u76ee\u3068\u540c\u3058\u304f\u5b9f\u884c\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n
\"\"<\/p>\n
edge\uff1a \u6210\u529f\uff01<\/strong><\/p>\n
\u3010\u8ffd\u8a18\uff1a2020.5.11\u3011<\/strong>juner<\/a>\u3055\u3093\u304b\u3089\u3054\u6307\u6458\u304c\u3042\u308a\u3001\u30b3\u30fc\u30c9\u3092\u5909\u66f4\u3057\u307e\u3057\u305f\u3002\u3054\u6307\u6458\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3059\ud83d\ude0a\u2728<\/p>\n
\u30af\u30e9\u30b9\u5b9a\u7fa9\uff08Constructor, Setter, Getter\uff09<\/h1>\n
class TestClass {<\/strong>\r\n\r\n    constructor(name) {\r\n\r\n        this.name = name;\r\n\r\n    }\r\n\r\n    get Name() {\r\n\r\n        return this.name;\r\n\r\n    }\r\n\r\n    set Name(name) {\r\n\r\n        this.name = name;\r\n\r\n    }\r\n\r\n}<\/strong>\r\n\r\nlet testClass = new TestClass('\u9234\u6728');\r\ntestClass.Name = '\u4f50\u85e4';\r\ndocument.write(testClass.name); \/\/ \u4f50\u85e4<\/pre>\n
IE\uff1a \u5931\u6557…<\/strong><\/p>\n
\u30af\u30e9\u30b9\u69cb\u6587\u304c\u4f7f\u3048\u308b\u3088\u3046\u306b\u3042\u308b\u3068\u3001\u4f55\u304b\u3072\u3068\u3064\u306e\u6a5f\u80fd\u3092\u30ab\u30d7\u30bb\u30eb\u5316\u3057\u3084\u3059\u304f\u306a\u308b\u306e\u3067\u3001\u30b3\u30fc\u30c9\u306e\u4f7f\u3044\u56de\u3057\u304c\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u304c\u3001IE\u3067\u306f\u300cSCRIPT1002: \u69cb\u6587\u30a8\u30e9\u30fc\u3067\u3059\u3002<\/span>\u300d\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n
\"\"<\/p>\n
edge\uff1a \u6210\u529f\uff01<\/strong><\/p>\n
Promise<\/h1>\n
var promise = new Promise((resolve, reject)<\/strong> => {\r\n\r\n    \/\/ \u975e\u540c\u671f\u51e6\u7406\r\n\r\n    \/\/ \u6210\u529f\u3057\u305f\u6642\u5b9f\u884c\u3059\u308b\r\n    resolve('\u975e\u540c\u671f\u51e6\u7406\u3001\u6210\u529f\u3067\u3059\uff01');\r\n\r\n    \/\/ \u5931\u6557\u3057\u305f\u6642\u5b9f\u884c\u3059\u308b\r\n    reject('\u6b8b\u5ff5\u3001\u5931\u6557\u3067\u3059...');\r\n\r\n});\r\n\r\npromise\r\n    .then(function(result){\r\n\r\n       <\/strong> document.write(result);\r\n\r\n    })\r\n    .catch(function(result){\r\n\r\n        <\/strong>document.write(result);\r\n\r\n    });<\/strong><\/pre>\n
IE\uff1a \u5931\u6557…<\/p>\n
\u975e\u540c\u671f\u306e\u6a5f\u80fd\u3092\u958b\u767a\u3059\u308b\u5834\u5408\u306b\u306fPromise<\/code>\u304c\u3068\u3066\u3082\u4fbf\u5229\u3067\u3059\u304c\u3001\u3053\u308c\u3082\u5b9f\u884c\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u305f\u3060\u3001Ajax\u901a\u4fe1\u3092\u3059\u308b\u5834\u5408\u3067\u3057\u305f\u3089\u3001axios<\/a>\u306a\u3069\u306e\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u4f7f\u3048\u3070\u6bd4\u8f03\u7684\u697d\u306b\u5b9f\u88c5\u304c\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n
\"\"<\/p>\n
edge\uff1a \u6210\u529f\uff01\uff08\u305f\u3060\u3057\u3001\u3053\u306e\u30b3\u30fc\u30c9\u3067\u306f\u305a\u3063\u3068\u30ed\u30fc\u30c9\u4e2d\u306e\u307e\u307e\u3067\u3057\u305f\uff09<\/p>\n
\u914d\u5217\u3078\u633f\u5165<\/h1>\n
var partialWeekNames = ['\u706b',  '\u6c34',  '\u6728'];\r\nvar fullWeekNames = ['\u65e5', '\u6708', ...partialWeekNames<\/strong>,  '\u91d1',  '\u571f'];\r\ndocument.write(fullWeekNames.join(','));<\/pre>\n
IE\uff1a \u5931\u6557…<\/strong><\/p>\n
\u500b\u4eba\u7684\u306b\u3042\u307e\u308a\u3053\u306e\u66f8\u304d\u65b9\u3092\u3057\u305f\u3053\u3068\u306f\u306a\u3044\u306e\u3067\u3059\u304c\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3002\u305f\u3060\u3001\u4f7f\u3048\u308b\u3068\u4fbf\u5229\u306a\u65b9\u6cd5\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n
\"\"<\/p>\n
edge\uff1a \u6210\u529f\uff01<\/strong><\/p>\n
Map\u578b<\/h1>\n
var map = new Map();\r\nmap.set('eyes', '\u76ee');\r\nmap.set('nose', '\u9f3b');\r\nmap.set('mouth', '\u53e3');\r\ndocument.write(map.get('eyes') + map.get('nose') + map.get('mouth'));<\/pre>\n
IE\uff1a \u5931\u6557…<\/strong><\/p>\n
\"\"<\/p>\n
\u3010\u8ffd\u8a18\uff1a2020.5.17\u3011<\/strong>\u3053\u3061\u3089\u3082 juner<\/a>\u3055\u3093\u304b\u3089\u306e\u3054\u6307\u6458\u3067\u5909\u66f4\u3057\u307e\u3057\u305f\u3002\u3055\u3089\u306b\u3001\u3053\u306e\u30b3\u30fc\u30c9\u306fjuner<\/code>\u3055\u3093\u306b\u66f8\u3044\u3066\u3044\u305f\u3060\u3044\u305f\u3082\u306e\u306b\u306a\u308a\u307e\u3059\u3002
\n\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\ud83d\ude0a\u2728<\/p>\n
edge\uff1a \u6210\u529f\uff01<\/p>\n
\u304a\u3069\u308d\u304d\u307e\u3057\u305f\u3002edge\u306f\u3068\u3082\u304b\u304f\u3001IE\u3067\u3082Map<\/code>\u304c\u5b9f\u884c\u3067\u304d\u308b\u3093\u3067\u3059\u306d\u3002
\n<\/del>IE\u3067\u306f\u5b9f\u884c\u3067\u304d\u307e\u305b\u3093\u3002<\/span><\/p>\n
Set\u578b<\/h1>\n
var familyNames = new Set(['\u9234\u6728', '\u4f50\u85e4', '\u5c71\u7530']);\r\ndocument.write(familyNames.size); \/\/ 3\r\n\r\nif(familyNames.has('\u4f50\u85e4')) {\r\n\r\n    document.write('\u4f50\u85e4\u3055\u3093\u304c\u5165\u3063\u3066\u3044\u307e\u3059\uff01');\r\n\r\n}<\/pre>\n
IE: \u5931\u6557…<\/strong><\/p>\n
\u30a8\u30e9\u30fc\u306f\u8868\u793a\u3055\u308c\u307e\u305b\u3093\u3067\u3057\u305f\u304c\u3001size<\/code>\u304c3<\/code>\u3068\u306a\u308b\u3068\u3053\u308d\u304c0<\/code>\u306b\u306a\u308b\u306a\u3069\u3001\u5b9f\u884c\u304c\u3067\u304d\u307e\u305b\u3093\u3067\u3057\u305f\u3002\u3080\u3057\u308d\u30a8\u30e9\u30fc\u304c\u51fa\u305f\u65b9\u304c\u3044\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002<\/p>\n
\"\"<\/p>\n
edge\uff1a \u6210\u529f\uff01<\/strong><\/p>\n
\u914d\u5217\u3067\u6761\u4ef6\u3092\u30af\u30ea\u30a2\u3059\u308b\u6700\u521d\u306e\u30c7\u30fc\u30bf\u3092\u53d6\u5f97<\/h1>\n
var scores = [80, 57, 92, 32, 89, 95, 40];\r\nvar result = scores.find(function(value, index, array){<\/strong>\r\n\r\n    return (value > 90);\r\n\r\n});<\/strong>\r\ndocument.write('\u4e00\u756a\u6700\u521d\u306b90\u70b9\u3092\u8d85\u3048\u305f\u70b9\u6570\u306f\u300c'+ result +'\u70b9\u300d\u3067\u3059\u3002'); \/\/ 92<\/pre>\n
IE: \u5931\u6557…<\/strong><\/p>\n
\u30cd\u30a4\u30c6\u30a3\u30d6\u3067\u3053\u3046\u3044\u3063\u305f\u8a18\u8ff0\u304c\u3067\u304d\u308b\u3068\u3068\u3066\u3082\u4fbf\u5229\u3067\u3059\u304c\u3001\u307e\u3060IE\u3067\u306f\u672a\u5bfe\u5fdc\u3067\u300cSCRIPT438: \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306f `find` \u30d7\u30ed\u30d1\u30c6\u30a3\u307e\u305f\u306f\u30e1\u30bd\u30c3\u30c9\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u307e\u305b\u3093\u3002<\/span>\u300d\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n
\"\"<\/p>\n
edge: \u6210\u529f\uff01<\/strong><\/p>\n
\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9<\/h1>\n
\u4eca\u56de\u306e\u691c\u8a3c\u3067\u4f7f\u3063\u305fJavaScript\u30b3\u30fc\u30c9\u3092\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3067\u304d\u307e\u3059\u3002HTML\u30d5\u30a1\u30a4\u30eb\u3060\u3051\u306a\u306e\u3067\u5c55\u958b\u3057\u3066\u3059\u3050\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3088\uff01<\/p>\n\n\tIE11\u3067\u4f7f\u3048\u306a\u3044\u6700\u65b0JavaScrit\u30b3\u30fc\u30c9\uff08ES6\uff09<\/a>\n\n
\u304a\u308f\u308a\u306b<\/h1>\n
\u7d50\u679c\u3068\u3057\u3066\u3001IE\u3067\u5b9f\u884c\u304c\u3067\u304d\u305f\u306e\u306f\u4ee5\u4e0b\u306e\uff13\u3064\u3060\u3051\u3068\u3044\u3046\u7d50\u679c\u306b\u306a\u308a\u307e\u3057\u305f\u3002<\/p>\n