{"author_name":"sirocco","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsirocco.hatenadiary.org%2Fentry%2F20110610%2F1307694359\" title=\"unsafePerformIO \u3092\u4f7f\u3063\u3066 IO \u3092\u5916\u3059 - 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>","version":"1.0","published":"2011-06-10 17:25:59","provider_url":"https://hatena.blog","categories":["Haskell"],"width":"100%","blog_url":"https://sirocco.hatenadiary.org/","height":"190","description":"\u25a0 Haskell \u518d\u5165\u9580Haskell(\u524d\u7de8)\u306b unsafePerformIO \u3092\u4f7f\u3063\u3066 IO \u3092\u5916\u3059\u4f8b\u304c\u3042\u308a\u307e\u3057\u305f\u306e\u3067\u5199\u7d4c\u3057\u3066\u307f\u307e\u3057\u305f\u3002 import System.IO.Unsafe configFileName = \"config.txt\" loadConfig :: IO (String,Integer) loadConfig = readFile configFileName >>= \\dat -> let [server, portNumber] = lines dat in return (server, read portNumber) server :: String p\u2026","type":"rich","provider_name":"Hatena Blog","blog_title":"sirocco \u306e\u66f8\u3044\u3066\u3082\u3059\u3050\u306b\u5fd8\u308c\u308b\u30e1\u30e2","url":"https://sirocco.hatenadiary.org/entry/20110610/1307694359","image_url":null,"author_url":"https://blog.hatena.ne.jp/sirocco/","title":"unsafePerformIO \u3092\u4f7f\u3063\u3066 IO \u3092\u5916\u3059"}