{"author_name":"suzuki86","width":"100%","author_url":"https://blog.hatena.ne.jp/suzuki86/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsuzuki86.hateblo.jp%2Fentry%2F2015%2F04%2F11%2F234933\" title=\"\u7279\u7570\u30e1\u30bd\u30c3\u30c9\u304b\u3089\u76f4\u63a5\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30e1\u30bd\u30c3\u30c9\u306f\u547c\u3073\u51fa\u305b\u306a\u3044 - \u307b\u3069\u3088\u3044\u30d0\u30e9\u30f3\u30b9\" 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":"\u307b\u3069\u3088\u3044\u30d0\u30e9\u30f3\u30b9","provider_url":"https://hatena.blog","image_url":null,"blog_url":"https://suzuki86.hateblo.jp/","version":"1.0","url":"https://suzuki86.hateblo.jp/entry/2015/04/11/234933","categories":["ruby"],"published":"2015-04-11 23:49:33","type":"rich","description":"\u4e0b\u8a18\u306e\u3088\u3046\u306a\u66f8\u304d\u65b9\u3092\u3059\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308b\u3002 class A def self.speak say_hello end def say_hello puts \"Hello\" end end A.speak # undefined local variable or method \u3068\u3044\u3046\u30a8\u30e9\u30fc\u304c\u8868\u793a\u3055\u308c\u308b\u3002 self.speak\u30e1\u30bd\u30c3\u30c9\u306e\u4e2d\u3067\u81ea\u5206\u81ea\u8eab\u306e\u30af\u30e9\u30b9\u3092new\u3059\u308b\u3068\u547c\u3073\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3002 class A def self.speak self.new.say_hello end def say_hello puts \"Hello\" end end A.speak # Hello\u3068\u8868\u793a\u3055\u308c\u308b\u3002 \u2026","height":"190","provider_name":"Hatena Blog","title":"\u7279\u7570\u30e1\u30bd\u30c3\u30c9\u304b\u3089\u76f4\u63a5\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30e1\u30bd\u30c3\u30c9\u306f\u547c\u3073\u51fa\u305b\u306a\u3044"}