{"provider_url":"https://hatena.blog","title":"WeakMap \u3092\u4f7f\u3063\u305f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u306a\u5024","type":"rich","url":"https://teramako.hatenadiary.org/entry/20121019/p1","blog_title":"hogehoge @teramako","author_url":"https://blog.hatena.ne.jp/teramako/","published":"2012-10-19 00:00:00","image_url":null,"blog_url":"https://teramako.hatenadiary.org/","description":"\u898b\u3048\u3066\u304d\u305f\u300cECMAScript 6\u300d\u3002JavaScript\u306e\u751f\u307f\u306e\u89aa\u304c\u66f8\u304f\u300cHarmony of Dreams Come True\u300d \u2212 Publickey \u3067 WeakMap \u306e\u7d39\u4ecb\u304c\u3042\u3063\u305f\u3053\u3068\u3060\u3057\u3001\u3061\u3087\u3063\u3068\u4f7f\u3048\u305d\u3046\u306a\u30cd\u30bf\u3067\u3082\u66f8\u3044\u3066\u304a\u304f\u3088\u3002WeakMap\u3092\u4f7f\u3063\u3066\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u6bce\u306b\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u306a\u5024\u3092\u6301\u3066\u308b\u3088\u3046\u306b\u3057\u3088\u3046\u3068\u3044\u3046\u8a66\u307f\u3002\u307e\u3041\u3088\u304f\u3042\u308b\u30cd\u30bf\u3060\u304b\u3089\u3001\u4e8c\u756a\u714e\u3058\u3001\u4e09\u756a\u714e\u3058\u306b\u306a\u3063\u3066\u305d\u3046\u3060\u3051\u3069\u3002 var FooClass = (function (){ var wmap = new WeakMap; function Foo (name) { wmap.set(this, {}); this.pr\u2026","height":"190","categories":["JavaScript"],"author_name":"teramako","width":"100%","version":"1.0","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fteramako.hatenadiary.org%2Fentry%2F20121019%2Fp1\" title=\"WeakMap \u3092\u4f7f\u3063\u305f\u30d7\u30e9\u30a4\u30d9\u30fc\u30c8\u306a\u5024 - hogehoge @teramako\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}