{"categories":["JavaScript","Firefox"],"title":"Nightly \u3067 __proto__ \u306e\u6319\u52d5\u304c\u5909\u308f\u3063\u305f","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fteramako.hatenadiary.org%2Fentry%2F20120720%2Fp1\" title=\"Nightly \u3067 __proto__ \u306e\u6319\u52d5\u304c\u5909\u308f\u3063\u305f - 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>","url":"https://teramako.hatenadiary.org/entry/20120720/p1","author_url":"https://blog.hatena.ne.jp/teramako/","image_url":null,"blog_url":"https://teramako.hatenadiary.org/","type":"rich","author_name":"teramako","version":"1.0","width":"100%","blog_title":"hogehoge @teramako","height":"190","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","published":"2012-07-20 00:00:00","description":"\u4ee5\u524d\u3001__proto__\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u4e0d\u601d\u8b70\u3068\u3044\u3046\u3082\u306e\u3092\u66f8\u3044\u305f\u304c\u3001Firefox Nightly\u3067\u3001\u3053\u306e __proto__ \u30d7\u30ed\u30d1\u30c6\u30a3\u306b\u5909\u66f4\u304c\u5165\u3063\u305f\u3002 Bug 770344 - Experiment implementing __proto__ as an accessor Firefox\u3067\u306f\u5143\u3005\u3001Object.prototype\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u306b __proto__ \u304c\u3042\u308a\u3001\u305d\u308c\u306f\u5909\u308f\u3063\u3066\u3044\u306a\u3044\u304c\u3001Descriptor \u304c\u5909\u308f\u3063\u3066\u3044\u308b\u3002 Nightly\u4ee5\u5916Object.getOwnPropertyDescriptor(Object.prototype, \"__proto__\"); /* { co\u2026"}