{"html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Ftotemn.hatenadiary.org%2Fentry%2F20090220%2F1235134262\" title=\" \u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3068\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9 - totemn\u306e\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://totemn.hatenadiary.org/","image_url":null,"description":"\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u304c\u6210\u7acb\u3059\u308b\u6761\u4ef6\u306f\u30e1\u30bd\u30c3\u30c9\u540d\u306e\u540c\u5024\u6027\u3060\u3051\u3002 \u305f\u3068\u3048\u3070\u4ee5\u4e0b\u306e\u4f8b class Animal def speak \"hello\" end endclass Dog def speak(word) \"hello \" + word end enddog = Dog.newputs dog.speak => 14:in 'speak': wrong number of arguments (0 for 1) (ArgumentError) Animal\u30af\u30e9\u30b9\u306espeak\u306f\u5f15\u6570\u4ed8\u304d\u306espeak(word)\u306b\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3055\u308c\u305f\u305f\u3081\u3001\u5f15\u6570\u7121\u3057\u306espeak\u30e1\u30bd\u30c3\u30c9\u306f\u5b58\u5728\u3057\u306a\u3044\u306e\u3067\u30a8\u30e9\u30fc\u306b\u306a\u308b\u3002 Ja\u2026","author_url":"https://blog.hatena.ne.jp/totemn/","title":" \u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3068\u30aa\u30fc\u30d0\u30fc\u30ed\u30fc\u30c9","width":"100%","url":"https://totemn.hatenadiary.org/entry/20090220/1235134262","provider_name":"Hatena Blog","published":"2009-02-20 21:51:02","author_name":"totemn","blog_title":"totemn\u306e\u65e5\u8a18","type":"rich","height":"190","provider_url":"https://hatena.blog","categories":["Ruby"],"version":"1.0"}