{"id":5888,"date":"2018-07-15T19:39:12","date_gmt":"2018-07-15T10:39:12","guid":{"rendered":"http:\/\/www.code-magagine.com\/?p=5888"},"modified":"2023-05-28T07:55:31","modified_gmt":"2023-05-27T22:55:31","slug":"%e3%80%90html5%e3%80%91%e3%80%8c%e3%83%9d%e3%83%aa%e3%83%95%e3%82%a3%e3%83%ab%e3%80%8d%e3%81%a8%e3%81%af%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/www.code-magagine.com\/?p=5888","title":{"rendered":"\u3010Web\u958b\u767a\u3011\u300cpolyfill(\u30dd\u30ea\u30d5\u30a3\u30eb)\u300d\u3068\u306f\uff1f\u3001\u30c8\u30e9\u30f3\u30b9\u30d1\u30a4\u30eb\u3068\u306e\u9055\u3044\u306a\u3069\u3082\u3002"},"content":{"rendered":"

polyfill(\u30dd\u30ea\u30d5\u30a3\u30eb)\u3068\u306f\uff1f<\/h2>\n

JavaScript\u306e\u65b0\u898f\u683c\u300cECMAScript2015\u300d\u3084\u3001\u300cHTML\uff15\u300d\u7b49\u3001\u6280\u8853\u306f\u3069\u3093\u3069\u3093\u9032\u5316\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u30d6\u30e9\u30a6\u30b6\u5bfe\u5fdc\u304c\u8ffd\u3044\u3064\u3044\u3066\u3044\u306a\u3044\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n

\u4f8b\u3048\u3070\u3001IE\u3067\u3042\u308c\u3070\u300111\u4ee5\u964d\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u306f\u767a\u8868\u3055\u308c\u3066\u3044\u306a\u3044\u3067\u3059\u3057\u3001iOS\u306eSafari\u3067\u3042\u308c\u3070\u3001\uff2f\uff33\u306e\u30d0\u30fc\u30b8\u30e7\u30f3\u30a2\u30c3\u30d7\u3092\u3057\u306a\u3044\u9650\u308a\u306f\u81ea\u52d5\u3067\u30d0\u30fc\u30b8\u30e7\u30f3\u304c\u4e0a\u304c\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305d\u306e\u3088\u3046\u306a\u30d6\u30e9\u30a6\u30b6\u304c\u5bfe\u5fdc\u3067\u304d\u3066\u3044\u306a\u3044\u90e8\u5206\u3092\u57cb\u3081\u308b\u3053\u3068\u3092\u300c\u30dd\u30ea\u30d5\u30a3\u30eb\u300d<\/strong><\/span>\u3068\u547c\u3093\u3067\u3044\u307e\u3059\u3002<\/p>\n

\u30e1\u30ea\u30c3\u30c8<\/h2>\n

\u672c\u4f53\u306e\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u3092\u66f8\u304d\u63db\u3048\u305a\u306b\u5bfe\u5fdc\u3067\u304d\u307e\u3059\u3002<\/p>\n

\u4f8b<\/h3>\n

IE\u3067\u306fMath\u30af\u30e9\u30b9\u306e\u4e2d\u306e\u7279\u5b9a\u306e\u30e1\u30bd\u30c3\u30c9\u304c\u4f7f\u3048\u306a\u304b\u3063\u305f\u308a\u3057\u307e\u3059\u3002<\/p>\n

\u30c7\u30e1\u30ea\u30c3\u30c8<\/h2>\n

\u65b0\u3057\u3044\u6a5f\u80fd\u3092\u7121\u7406\u3084\u308a\u53e4\u3044\u6a5f\u80fd\u3067\u7f6e\u304d\u63db\u3048\u308b\u3053\u3068\u304c\u76ee\u7684\u306a\u306e\u3067\u3001\u30da\u30fc\u30b8\u306e\u8868\u793a\u901f\u5ea6\u304c\u82e5\u5e72\u9045\u304f\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u30c8\u30e9\u30f3\u30b9\u30b3\u30f3\u30d1\u30a4\u30eb\u3068\u306e\u9055\u3044<\/h2>\n

\u306a\u304a\u3001\u3088\u304f\u958b\u767a\u3067\u4f7f\u308f\u308c\u3066\u3044\u308b\u30e9\u30a4\u30d6\u30e9\u30ea\u3067\u3042\u308bBabel\u306b\u306f\u300c\u30c8\u30e9\u30f3\u30b9\u30d1\u30a4\u30eb\u300d\u3082\u300cpolyfill\u300d\u3082\u3069\u3061\u3089\u306e\u6a5f\u80fd\u3082\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u8fd1\u5e74\u306e\u958b\u767a\u3067\u306fBabel\u3067\u30c8\u30e9\u30f3\u30b9\u30d1\u30a4\u30eb\u3068polyfill\u3092\u6e08\u307e\u305b\u305f\u5f8c\u306bwebpack\u3067\u30e2\u30b8\u30e5\u30fc\u30eb\u30d0\u30f3\u30c9\u30eb\u3057\u3066\u672c\u756a\u30b3\u30fc\u30c9\u3068\u3059\u308b\u3053\u3068\u304c\u4e3b\u6d41\u306b\u306a\u3063\u3066\u304d\u3066\u3044\u307e\u3059\u3002\uff082023\u5e74\u73fe\u5728\u306fwebpack\u3088\u308a\u306fvite\u3084turbopack\u306a\u3069\u306e\u9ad8\u901f\u5909\u63db\u6280\u8853\u3082\u767b\u5834\u3057\u3066\u3044\u3066\u3044\u308b\u306e\u3067\u305d\u3061\u3089\u3092\u4f7f\u3063\u3066\u3044\u304f\u306e\u304c\u4e3b\u6d41\u306b\u306a\u3063\u3066\u3044\u304f\u3068\u601d\u308f\u308c\u307e\u3059\u304c\u3002\uff09<\/p>\n

\u30c8\u30e9\u30f3\u30b9\u30b3\u30f3\u30d1\u30a4\u30eb<\/h3>\n

ES5\u3068ES6\u4ee5\u964d\u3067\u4e92\u63db\u6027\u304c\u3042\u308b\u6587\u6cd5\u306b\u7f6e\u304d\u63db\u3048\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n

\u4f8b\u3048\u3070\u3001ES6\u4ee5\u964d\u3067\u5c0e\u5165\u3055\u308c\u305f\u30a2\u30ed\u30fc\u95a2\u6570\u3092\u3001ES5\u4ee5\u524d\u306e\u901a\u5e38\u306e\u95a2\u6570\u306a\u3069\u306e\u4e92\u63db\u6027\u304c\u3042\u308b\u6587\u6cd5\u306b\u5909\u63db\u3057\u305f\u308a\u3057\u307e\u3059\u3002<\/p>\n

polyfill<\/h3>\n

ES5\u3068ES6\u3067\u4e92\u63db\u6027\u306e\u306a\u3044\u6587\u6cd5\u306e\u306e\u5834\u5408\u306b\u5168\u304f\u5225\u306e\u30b3\u30fc\u30c9\u306b\u7f6e\u304d\u63db\u3048\u3066\u3057\u307e\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n

\u4f8b\u3048\u3070\u3001Promise\u3084\u914d\u5217\u306efind\u95a2\u6570\u306a\u3069\u306f\u4e92\u63db\u6027\u304c\u3042\u308b\u6587\u6cd5\u306f\u5b58\u5728\u3057\u307e\u305b\u3093\u304c\u3001\u540c\u3058\u3088\u3046\u306b\u52d5\u304f\u3088\u3046\u306a\u30b3\u30fc\u30c9\u306b\u5909\u63db\u3057\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n

\u305d\u3082\u305d\u3082poloyfill\u304c\u4e0d\u8981\u306a\u74b0\u5883\u306b\u306f\u306a\u308a\u3064\u3064\u3042\u308b\u3002<\/h2>\n

\u305d\u3082\u305d\u3082\u4eca\u306fIE\u306e\u30b5\u30dd\u30fc\u30c8\u306f\u5207\u308c\u3066\u3044\u308b\u306e\u3067polyfill\u3092\u5c0e\u5165\u3057\u306a\u304f\u3066\u3082\u826f\u3044\u74b0\u5883\u306b\u306f\u306a\u308a\u3064\u3064\u3042\u308b\u3088\u3046\u306a\u6c17\u304c\u3057\u307e\u3059\u3002<\/p>\n

\u305f\u3060\u3001\u304a\u5ba2\u3055\u3093\u306e\u74b0\u5883\u304c\u91d1\u878d\u7cfb\u3068\u304b\u3067\u793e\u5185\u3067\u53e4\u3044\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3063\u3066\u3044\u308b\u304b\u3089\u3068\u3044\u3046\u3053\u3068\u3067IE\u3092\u305d\u306e\u307e\u307e\u4f7f\u3044\u7d9a\u3051\u3066\u3044\u308b\u30b1\u30fc\u30b9\u306f\u30bc\u30ed\u3067\u306f\u306a\u3044\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n

\u8981\u4ef6\u306b\u3088\u3063\u3066\u306f\u307e\u3060\u307e\u3060\u53e4\u3044\u30d0\u30fc\u30b8\u30e7\u30f3\u306e\u30d6\u30e9\u30a6\u30b6\u3082\u5bfe\u5fdc\u304c\u5fc5\u8981\u306b\u306a\u3063\u3066\u304f\u308b\u53ef\u80fd\u6027\u306f\u3042\u308b\u306e\u3067\u5168\u304f\u77e5\u8b58\u4e0d\u8981\u3068\u3044\u3046\u308f\u3051\u3067\u306f\u306a\u3044\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"polyfill(\u30dd\u30ea\u30d5\u30a3\u30eb)\u3068\u306f\uff1f JavaScript\u306e\u65b0\u898f\u683c\u300cECMAScript2015\u300d\u3084\u3001\u300cHTML\uff15\u300d\u7b49\u3001\u6280\u8853\u306f\u3069\u3093\u3069\u3093\u9032\u5316\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u30d6\u30e9\u30a6\u30b6\u5bfe\u5fdc\u304c\u8ffd\u3044\u3064\u3044\u3066\u3044\u306a\u3044\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002 \u4f8b\u3048\u3070\u3001IE\u3067\u3042\u308c\u3070 […]","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[8],"tags":[],"_links":{"self":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/5888"}],"collection":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5888"}],"version-history":[{"count":11,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/5888\/revisions"}],"predecessor-version":[{"id":20668,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=\/wp\/v2\/posts\/5888\/revisions\/20668"}],"wp:attachment":[{"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5888"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5888"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.code-magagine.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5888"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}