{"published":"2004-12-17 00:00:00","height":"190","version":"1.0","author_url":"https://blog.hatena.ne.jp/sshi/","url":"https://sshi.hatenadiary.org/entry/20041217/p1","description":"\u4eca\u65e5\u306e\u304a\u984c\u306f\u300c\u578b\u30af\u30e9\u30b9\u300d\u3002\u3084\u3084\u3053\u3057\u305d\u3046\u3060\u304c\u3001\u7406\u89e3\u3067\u304d\u308c\u3070\u3001\u5fdc\u7528\u7bc4\u56f2\u306f\u3059\u3052\u30fc\u5e83\u3044\u4e88\u611f\u3002 \u3068\u3044\u3046\u308f\u3051\u3067\u3001(http://www.sampou.org/haskell/tutorial-j/classes.html)\u3092\u8aad\u3080\u3002 \u4ee5\u4e0b\u306f\u89e3\u8aac\u3068\u3044\u3046\u3088\u308a\u899a\u66f8\u306a\u306e\u3067\u3001\u307e\u3061\u304c\u3063\u3066\u3044\u308b\u53ef\u80fd\u6027\u5927\u3067\u3059\u3002\u30c4\u30c3\u30b3\u30df\u6b53\u8fce\u3002 \u65ad\u7247\u7684\u306b\u96c6\u3081\u305f\u60c5\u5831\u306b\u3088\u308b\u3068\u3001haskell\u306e\u578b\u30af\u30e9\u30b9\u306f\u3001Java\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30a4\u30b9\u306b\u5bfe\u5fdc\u3057\u3066\u3044\u3066\u3001\u3044\u308f\u3086\u308b\u95a2\u6570\u30b7\u30b0\u30cb\u30c1\u30e3\u306e\u96c6\u5408\u3068\u3057\u3066\u306e\u578b\u3092\u5b9a\u7fa9\u3067\u304d\u308b\u3002 \u5b9a\u7fa9\u4f8b\u306f\u3053\u3093\u306a\u611f\u3058\u3002 class Eq a where (==) :: a -> a -> BoolEq\u3068\u3044\u3046\u30af\u30e9\u30b9\u304c\u5b9a\u7fa9\u3055\u308c\u3066\u304a\u308a\u3001\u305d\u306e\u30af\u30e9\u30b9\u304c\u6301\u3064\u30e1\u2026","type":"rich","provider_name":"Hatena Blog","image_url":null,"author_name":"sshi","width":"100%","provider_url":"https://hatena.blog","title":" \u30b7\u30ea\u30fc\u30ba\u300c\u95a2\u6570\u578b\u8a00\u8a9ehaskell\u306e\u6df1\u9060\u300d \u578b\u30af\u30e9\u30b9","blog_title":"sshi.Continual","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsshi.hatenadiary.org%2Fentry%2F20041217%2Fp1\" title=\" \u30b7\u30ea\u30fc\u30ba\u300c\u95a2\u6570\u578b\u8a00\u8a9ehaskell\u306e\u6df1\u9060\u300d \u578b\u30af\u30e9\u30b9 - sshi.Continual\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://sshi.hatenadiary.org/","categories":["haskell"]}