{"provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsirocco.hatenadiary.org%2Fentry%2F20110930%2F1317391153\" title=\"\u51fa\u529b\u3059\u308b\u578b\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u9055\u3046\u578b\u3092\u8fd4\u3059\u95a2\u6570 - 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>","type":"rich","image_url":null,"description":"return \u3084 pure \u306f\u51fa\u529b\u3059\u308b\u578b\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u9055\u3046\u578b\u3092\u8fd4\u3057\u307e\u3059\u3002 ghci> (return 123)::IO Int -- > 123 ghci> (return 123)::[Int] -- > [123] ghci> (return 123)::Maybe Int -- > Just 123 ghci> :m + Control.Applicative ghci> (pure 123)::Maybe Int -- > Just 123 ghci> (pure 123)::[Integer] -- > [123] \u305d\u308c\u3068\u540c\u3058\u3088\u3046\u306b\u51fa\u529b\u3059\u308b\u578b\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u9055\u3046\u578b\u3092\u8fd4\u3059\u2026","author_url":"https://blog.hatena.ne.jp/sirocco/","categories":["Haskell"],"title":"\u51fa\u529b\u3059\u308b\u578b\u3092\u6307\u5b9a\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u9055\u3046\u578b\u3092\u8fd4\u3059\u95a2\u6570","version":"1.0","author_name":"sirocco","width":"100%","url":"https://sirocco.hatenadiary.org/entry/20110930/1317391153","blog_url":"https://sirocco.hatenadiary.org/","published":"2011-09-30 22:59:13","height":"190","blog_title":"sirocco \u306e\u66f8\u3044\u3066\u3082\u3059\u3050\u306b\u5fd8\u308c\u308b\u30e1\u30e2","provider_url":"https://hatena.blog"}