{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fanekos.hatenablog.com%2Fentry%2F20080629%2F1214704780\" title=\"new Boolean(false); \u306e\u8a55\u4fa1 - \u5730\u7344\u306e\u30cd\u30b3\u30d6\u30ed\u30b0\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"nokturnalmortum","url":"https://anekos.hatenablog.com/entry/20080629/1214704780","type":"rich","blog_url":"https://anekos.hatenablog.com/","height":"190","version":"1.0","image_url":null,"description":"\u30d6\u30fc\u30eb\u5024\uff08boolean\uff09\u3068\u3057\u3066\u306etrue\u3068\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\uff08object\uff09\u3068\u3057\u3066\u306etrue\u306f\u3001typeof\u3067\u5224\u5225\u3067\u304d\u307e\u3059\u304c\u3001\u901a\u5e38\u306f\u533a\u5225\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u305b\u3093\u3002if\u6587\u306e\u6761\u4ef6\u3068\u3057\u3066\u3082\u3001boolean\u3001object\u306e\u3069\u3061\u3089\u3067\u3082\u540c\u3058\u306b\u4f7f\u3048\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u6b21\u306e\u3088\u3046\u306b\u66f8\u304f\u3068\u30c0\u30e1\u3067\u3059\u3002 \u3053\u308c\u3092\u540c\u3058\u306b\u4f7f\u3048\u308b\u3068\u8a00\u3063\u3066\u826f\u3044\u306e\u304b\u306a\u3041\uff1f\u305f\u3057\u304b\u306b new Boolean(true) \u306e\u3068\u304d\u306f\u554f\u984c\u306a\u3044(?)\u3051\u308c\u3069\u2026 b = new Boolean(false); alert(b); if (b) { alert('true'); } else { alert('false'); } ary = Array.prototype\u2026","categories":["JavaScript"],"provider_url":"https://hatena.blog","width":"100%","blog_title":"\u5730\u7344\u306e\u30cd\u30b3\u30d6\u30ed\u30b0","published":"2008-06-29 10:59:40","provider_name":"Hatena Blog","title":"new Boolean(false); \u306e\u8a55\u4fa1","author_url":"https://blog.hatena.ne.jp/nokturnalmortum/"}