{"image_url":null,"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftakuya-1st.hatenablog.jp%2Fentry%2F2016%2F06%2F07%2F024300\" title=\"JavaScript\u3067\u6587\u5b57\u5217\u5316\u3057\u305ffunction \u3092\u5b9f\u884c\u3059\u308b - \u305d\u308c\u30de\u30b0\u3067\uff01\" 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":"\u305d\u308c\u30de\u30b0\u3067\uff01","provider_name":"Hatena Blog","width":"100%","description":"eval \u3057\u306a\u304f\u3066\u3082\u3044\u3044\u611f\u3058 Function.call(this, \"return \"+ v )(); javascript \u306e\u6df1\u6df5\u306b\u89e6\u308c\u305f\u6c17\u304c\u3059\u308b var a = {name:\"takuya\",say:function(){console.log(this.name)}} //=>{ a: 'takuya', say: [Function] } var b = a.say.toString() //=>'function (){console.log(this.a)}' var c = Function.call(null,\"return \"+b)() c.call(a) //=>taku\u2026","title":"JavaScript\u3067\u6587\u5b57\u5217\u5316\u3057\u305ffunction \u3092\u5b9f\u884c\u3059\u308b","blog_url":"https://takuya-1st.hatenablog.jp/","published":"2016-06-07 02:43:00","categories":["javascript"],"type":"rich","height":"190","version":"1.0","author_url":"https://blog.hatena.ne.jp/takuya_1st/","url":"https://takuya-1st.hatenablog.jp/entry/2016/06/07/024300","author_name":"takuya_1st","provider_url":"https://hatena.blog"}