{"url":"https://nishiohirokazu.hatenadiary.org/entry/20120427/1335518839","height":"190","provider_url":"https://hatena.blog","categories":[],"blog_title":"\u897f\u5c3e\u6cf0\u548c\u306e\u306f\u3066\u306a\u30c0\u30a4\u30a2\u30ea\u30fc","version":"1.0","blog_url":"https://nishiohirokazu.hatenadiary.org/","author_name":"nishiohirokazu","type":"rich","title":"JavaScript\u30af\u30a4\u30ba\u300cx + 0 == x - 0\u300d","provider_name":"Hatena Blog","width":"100%","published":"2012-04-27 18:27:19","author_url":"https://blog.hatena.ne.jp/nishiohirokazu/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnishiohirokazu.hatenadiary.org%2Fentry%2F20120427%2F1335518839\" title=\"JavaScript\u30af\u30a4\u30ba\u300cx + 0 == x - 0\u300d - \u897f\u5c3e\u6cf0\u548c\u306e\u306f\u3066\u306a\u30c0\u30a4\u30a2\u30ea\u30fc\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","image_url":null,"description":"\u4ee5\u4e0b\u306e20\u554f\u306econsole.log\u3067\u4f55\u304c\u51fa\u529b\u3055\u308c\u308b\u304b\u5f53\u3066\u3066\u307f\u3088\u3046\u3002 var x = {}; console.log(x + 0 == x - 0) var x = []; console.log(x + 0 == x - 0) var x = (function(){}); console.log(x + 0 == x - 0) var x = null; console.log(x + 0 == x - 0) var x = undefined; console.log(x + 0 == x - 0) var x = Infinity; console.log(x + 0 == x - 0\u2026"}