{"author_url":"https://blog.hatena.ne.jp/sirocco/","image_url":null,"blog_title":"sirocco \u306e\u66f8\u3044\u3066\u3082\u3059\u3050\u306b\u5fd8\u308c\u308b\u30e1\u30e2","height":"190","categories":[],"published":"2010-06-14 06:12:49","url":"https://sirocco.hatenadiary.org/entry/20100614/1276463569","type":"rich","title":"The main function `main' is not exported by module `Main'","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsirocco.hatenadiary.org%2Fentry%2F20100614%2F1276463569\" title=\"The main function `main&#39; is not exported by module `Main&#39; - 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>","description":"\u300cReal World Haskell\u300d\u8aad\u66f8\u30e1\u30e2 4.\u30e9\u30a4\u30d6\u30e9\u30ea\u3092\u66f8\u304f 5.5Haskell\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u751f\u6210\u3001\u304a\u3088\u3073\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u30a4\u30f3\u30dd\u30fc\u30c8 -- file: ch05/SimpleJSON.hs module SimpleJSON ( JValue(..) , getString , getInt , getDouble , getBool , getObject , getArray , isNull ) where data JValue = JString String | JNumber Double | JBool Bool | JNull | JObject [(String, J\u2026","provider_url":"https://hatena.blog","version":"1.0","blog_url":"https://sirocco.hatenadiary.org/","author_name":"sirocco","provider_name":"Hatena Blog","width":"100%"}