{"height":"190","blog_url":"https://www.shigemk2.com/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.shigemk2.com%2Fentry%2F20120817%2F1345197959\" title=\"\u578b\u5909\u6570 - by shigemk2\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"shigemk2","blog_title":"by shigemk2","categories":["Haskell"],"published":"2012-08-17 19:05:59","author_url":"https://blog.hatena.ne.jp/shigemk2/","version":"1.0","type":"rich","provider_url":"https://hatena.blog","description":"head\u95a2\u6570\u306e\u578b\u306f\u4f55\u306a\u306e\u304b\u3002 Main> :t head head :: [a] -> a\u3067\u306ffst\u95a2\u6570\u306e\u578b\u306f? Main> :t fst fst :: (a, b) -> a\u3053\u306e a \u3068\u304b b\u3068\u304b\u3063\u3066\u3044\u3046\u306e\u306f\u3001\u578b\u5909\u6570\u3068\u547c\u3070\u308c\u308b\u3082\u306e\u3067\u3001 \u3069\u3093\u306a\u578b\u3082\u53d6\u308a\u5f97\u308b\u3068\u3044\u3046\u3053\u3068\u3092\u610f\u5473\u3059\u308b\u3002\u578b\u5909\u6570\u3092\u7528\u3044\u305f\u95a2\u6570\u3092\u591a\u76f8\u7684\u95a2\u6570\u3068\u547c\u3070\u308c\u308b\u3002\u578b\u5909\u6570 a \u3084 b \u306f\u9055\u3046\u578b\u5909\u6570\u3067\u3042\u308b\u3002","width":"100%","provider_name":"Hatena Blog","url":"https://www.shigemk2.com/entry/20120817/1345197959","image_url":null,"title":"\u578b\u5909\u6570"}