{"version":"1.0","blog_url":"https://yukidarake.hateblo.jp/","height":"190","author_name":"nakimura","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","type":"rich","width":"100%","title":"JS\u3067\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u304b\u914d\u5217\u304c\u52dd\u624b\u306b\u5909\u66f4\u3055\u308c\u3066\u3057\u307e\u3046\u306e\u3092\u691c\u51fa\u3057\u305f\u3044\uff01","categories":[],"url":"https://yukidarake.hateblo.jp/entry/2015/10/20/194726","image_url":null,"author_url":"https://blog.hatena.ne.jp/nakimura/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fyukidarake.hateblo.jp%2Fentry%2F2015%2F10%2F20%2F194726\" title=\"JS\u3067\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3068\u304b\u914d\u5217\u304c\u52dd\u624b\u306b\u5909\u66f4\u3055\u308c\u3066\u3057\u307e\u3046\u306e\u3092\u691c\u51fa\u3057\u305f\u3044\uff01 - \u306a\u3063\u304f\u65e5\u5831\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_title":"\u306a\u3063\u304f\u65e5\u5831","published":"2015-10-20 19:47:26","description":"\u4eca\u65e5\u306f\u30df\u30fc\u30c6\u30a3\u30f3\u30b0\u30e1\u30a4\u30f3\u3060\u3063\u305f\u306e\u3067\u3001\u30cd\u30bf\u304c\u306a\u3044\u3067\u3059\u3002 \u7121\u7406\u3084\u308a\u7d5e\u308a\u51fa\u3057\u307e\u3057\u305f\u3002 \u554f\u984c const\u3068\u3057\u3066\u5b9a\u7fa9\u3057\u305f\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u52dd\u624b\u306b\u30d7\u30ed\u30d1\u30c6\u30a3\u304c\u8ffd\u52a0\u3055\u308c\u3066\u3044\u308b\uff01\u691c\u51fa\u3057\u305f\u3044\u3002 \u5bfe\u7b56 \u2193\u306eyosuke_furukawa\u3055\u3093\u306e\u30c4\u30a4\u30fc\u30c8\u307e\u307e\u3067\u3059\u304c\u3001Object.freeze()\u3092\u958b\u767a\u6642\u306e\u307fON\u306b\u3059\u308c\u3070\u826f\u3055\u305d\u3046\u3067\u3059\u3002 Object.freeze\u306fconst\u3068\u3057\u3066\u5b9a\u7fa9\u3057\u305f\u306f\u305a\u306eObject\u306e\u5024\u3092\u4f55\u6545\u304b\u66f8\u304d\u63db\u3048\u3066\u3044\u305f\u3068\u3044\u3046\u30a2\u30d7\u30ea\u306e\u30d0\u30b0\u3092\u898b\u3064\u3051\u305f\u6642\u306b\u3001\u518d\u767a\u9632\u6b62\u7b56\u3068\u3057\u3066\u958b\u767a\u4e2d\u3060\u3051freeze\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u9632\u3050\u3068\u3044\u3046\u5bfe\u7b56\u3092\u5165\u308c\u307e\u3057\u305f\u3002 http://t.co/PC2IpPlUmk #javascript\u2014 Yosu\u2026"}