{"description":"\u6b63\u898f\u8868\u73fe\u3092\u4f7f\u3063\u305f\u6587\u5b57\u5217\u306e\u691c\u7d22\u304c\u3001 indexOf\u3068\u6bd4\u3079\u3066\u901f\u5ea6\u304c\u3069\u306e\u7a0b\u5ea6\u306a\u306e\u304b\u8abf\u3079\u305f\u3002 \u4ee5\u524d\u3068\u540c\u69d8\u306b\u8abf\u3079\u305f\u3002 http://d.hatena.ne.jp/inamori/20061219\u6b63\u898f\u8868\u73fe\u306f\u3001\u3044\u3063\u305f\u3093 var reg = /b/;\u306a\u3069\u3068\u3057\u3066\u304b\u3089\u4f7f\u3046\u3068 indexOf\u3092\u4f7f\u3046\u306e\u3068\u305d\u308c\u307b\u3069\u901f\u5ea6\u304c\u5909\u308f\u3089\u306a\u304f\u306a\u308b\u3002 // test(1) \u9045\u3044 for(var i = 0; i /b/.test(str); } // test(2) var reg = /b/; for(var i = 0; i reg.test(str); }\u3053\u308c\u3060\u3068\u3046\u307e\u304f\u3044\u304b\u306a\u3044\u306e\u306f\u306a\u305c\uff1f var reg = /b/; reg.c\u2026","version":"1.0","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/i/inamori/20061226/20061226214742.gif","blog_url":"https://inamori.hateblo.jp/","provider_name":"Hatena Blog","categories":["JavaScript"],"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finamori.hateblo.jp%2Fentry%2F20061226%2Fp1\" title=\"JScript\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u901f\u5ea6/test\uff081\uff09 - inamori\u2019s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/inamori/","height":"190","title":"JScript\u306e\u30e1\u30bd\u30c3\u30c9\u306e\u901f\u5ea6/test\uff081\uff09","width":"100%","provider_url":"https://hatena.blog","type":"rich","published":"2006-12-26 00:00:00","url":"https://inamori.hateblo.jp/entry/20061226/p1","blog_title":"inamori\u2019s diary","author_name":"inamori"}