teramako https://blog.hatena.ne.jp/teramako/ hogehoge @teramako https://teramako.hatenadiary.org/ JavaScript function getJSengine() { if (!("__proto__" in Object.prototype)) { if (typeof Object.getPrototypeOf === "undefined") return "JScript(IE8-)"; else return "JScript(IE9+)" } var o = JSON.parse('{"__proto__":null}'); if (!(o instanceof Object)) return "V8(GoogleChrome26-)"; if (Object.getPrototypeOf(o) … 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fteramako.hatenadiary.org%2Fentry%2F20130210%2Fp2" title="__proto__の挙動からJavaScriptエンジン判定 - hogehoge @teramako" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2013-02-10 00:00:00 rich https://teramako.hatenadiary.org/entry/20130210/p2 1.0 100%