suiginto https://blog.hatena.ne.jp/suiginto/ Today I abandon https://suiginto.hatenadiary.org/ JavaScript Ruby の object_id を JavaScript でも使えないかなと思って書いてみた。let が無いのがもどかしい。 Object.prototype.getObjectId = function(){ var object_id = 1; return function(){ if (this.hasOwnProperty('__object_id')){ return this.__object_id; }else{ object_id++; this.__object_id = object_id; return this.__object_id; } }; }(); これを使… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsuiginto.hatenadiary.org%2Fentry%2F20070202%2F1170401486" title="JavaScript のオブジェクト - Today I abandon" 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 2007-02-02 16:31:26 rich https://suiginto.hatenadiary.org/entry/20070202/1170401486 1.0 100%