{"image_url":null,"height":"190","title":"\u9045\u5ef6\u8a55\u4fa1\u3068\u6b63\u683c\u8a55\u4fa1","description":"\u6b63\u683c\u8a55\u4fa1\u306e\u8a00\u8a9e Ruby \u3068\u6bd4\u8f03\u3057\u3066\u307f\u308b\u3002 ~$ irb irb(main):001:0> def trace(str) irb(main):002:1> puts str irb(main):003:1> return str irb(main):004:1> end => nil irb(main):005:0> trace \"hello\" hello => \"hello\" # a \u306b\u914d\u5217\u3092\u4ee3\u5165\u3057\u305f\u6642\u70b9\u3067 trace \u95a2\u6570\u304c\u5b9f\u884c\u3055\u308c\u308b\u3002 irb(main):006:0> a = [\"Hello\",trace(\" world!\")] world! => [\"Hello\", \" world!\"\u2026","published":"2010-05-03 05:22:22","type":"rich","blog_title":"sirocco \u306e\u66f8\u3044\u3066\u3082\u3059\u3050\u306b\u5fd8\u308c\u308b\u30e1\u30e2","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsirocco.hatenadiary.org%2Fentry%2F20100503%2F1272918142\" title=\"\u9045\u5ef6\u8a55\u4fa1\u3068\u6b63\u683c\u8a55\u4fa1 - sirocco \u306e\u66f8\u3044\u3066\u3082\u3059\u3050\u306b\u5fd8\u308c\u308b\u30e1\u30e2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["Haskell"],"provider_name":"Hatena Blog","version":"1.0","provider_url":"https://hatena.blog","url":"https://sirocco.hatenadiary.org/entry/20100503/1272918142","author_name":"sirocco","author_url":"https://blog.hatena.ne.jp/sirocco/","blog_url":"https://sirocco.hatenadiary.org/"}