{"version":"1.0","author_url":"https://blog.hatena.ne.jp/osyo-manga/","title":"Ruby \u306e () \u306e\u623b\u308a\u5024","url":"https://secret-garden.hatenablog.com/entry/2017/07/08/170728","height":"190","published":"2017-07-08 17:07:28","author_name":"osyo-manga","provider_name":"Hatena Blog","width":"100%","type":"rich","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsecret-garden.hatenablog.com%2Fentry%2F2017%2F07%2F08%2F170728\" title=\"Ruby \u306e () \u306e\u623b\u308a\u5024 - Secret Garden(Instrumental)\" 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":"Secret Garden(Instrumental)","categories":["Ruby"],"description":"Ruby \u3060\u3068 () \u306e\u623b\u308a\u5024\u306f nil \u306b\u306a\u308b\u3089\u3057\u3044\u3002 p () # => nil p ().nil? # true \u307b\u307c\u4f7f\u3046\u3053\u3068\u306f\u306a\u3044\u3060\u308d\u3046\u3051\u3069\u77e5\u3089\u306a\u304b\u3063\u305f\uff08\u305d\u3082\u305d\u3082 () \u3060\u3051\u8a55\u4fa1\u51fa\u6765\u308b\u3068\u601d\u3063\u3066\u306a\u304b\u3063\u305f\u3002 \u3061\u306a\u307f\u306b #call \u304c\u547c\u3073\u51fa\u3055\u308c\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u3002 class X def call \"call\" end def func p self.() # => \"call\" p () # => nil end end X.new.func","provider_url":"https://hatena.blog","image_url":null,"blog_url":"https://secret-garden.hatenablog.com/"}