{"blog_title":"JS.next","description":"\u6982\u8981 ES2015\u3067\u306fUndefined\u3001Null\u3001Boolean\u3001Number\u3001String\u3001Object\u306e\uff16\u3064\u306e\u578b\u306b\u52a0\u3048\u3066\u3001\u65b0\u3057\u3044\u578bSymbol\u304c\u5c0e\u5165\u3055\u308c\u305f\u3002 \u30b7\u30f3\u30dc\u30eb\u306f\u30d7\u30ea\u30df\u30c6\u30a3\u30d6\u578b\u3067\u3001\u6587\u5b57\u5217\u306e\u3088\u3046\u306b\u30d7\u30ed\u30d1\u30c6\u30a3\u306e\u30ad\u30fc\u3068\u3057\u3066\u4f7f\u3048\u308b\u7279\u5fb4\u3092\u6301\u3064\u3002","type":"rich","blog_url":"https://js-next.hatenablog.com/","image_url":null,"url":"https://js-next.hatenablog.com/entry/2014/03/01/001650","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fjs-next.hatenablog.com%2Fentry%2F2014%2F03%2F01%2F001650\" title=\"Symbol\u306b\u3064\u3044\u3066 - JS.next\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog","width":"100%","author_name":"boaoa","provider_name":"Hatena Blog","categories":["\u2605\u2605\u2605","ES2015","\u4ed5\u69d8\u7d39\u4ecb"],"author_url":"https://blog.hatena.ne.jp/boaoa/","height":"190","published":"2014-03-01 00:16:50","title":"Symbol\u306b\u3064\u3044\u3066","version":"1.0"}