{"width":"100%","title":"Haskell\u30e2\u30ca\u30c9\u30c8\u30e9\u30f3\u30b9\u30d5\u30a9\u30fc\u30de\u30fc(1)","provider_url":"https://hatena.blog","version":"1.0","blog_url":"https://delihiros.hatenablog.jp/","image_url":null,"author_name":"paprikas","description":"\u3053\u3053\u307e\u3067\u3067\u3001\u30e2\u30ca\u30c9\u304c\u3069\u3046\u3044\u3046\u3082\u306e\u3067\u3001IO\u30e2\u30ca\u30c9\u306f\u4e0d\u7d14\u306a\u8a08\u7b97\u306e\u305f\u3081\u3001Maybe\u306f\u5931\u6557\u3059\u308b\u304b\u3082\u3057\u308c\u306a\u3044\u8a08\u7b97\u306e\u305f\u3081\u306b\u3001\u2026\u3068\u3044\u3046\u3088\u3046\u306b\u3001\u3069\u306e\u3088\u3046\u306b\u4f7f\u308f\u308c\u308b\u306e\u304b\u304c\u7406\u89e3\u3067\u304d\u305f\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u601d\u3044\u307e\u3059\u3002\u5b9f\u969b\u306e\u4f5c\u696d\u306e\u4e2d\u3067\u3001\u8907\u6570\u306e\u30e2\u30ca\u30c9\u306e\u7279\u6027\u3092\u6271\u3044\u305f\u3044\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u3082\u3061\u308d\u3093\u3001IO (Maybe a)\u307f\u305f\u3044\u306a\u3053\u3068\u3092\u66f8\u3044\u3066\u4f7f\u3046\u3053\u3068\u3082\u51fa\u6765\u307e\u3059\u304c\u3001\u305d\u308c\u3067\u306f\u5024\u3092\u53d6\u308a\u51fa\u3059\u3068\u304d\u3001do\u30d6\u30ed\u30c3\u30af\u306e\u4e2d\u3067\u30d1\u30bf\u30fc\u30f3\u30de\u30c3\u30c1\u30f3\u30b0\u3092\u884c\u308f\u306a\u304f\u3066\u306f\u306a\u308a\u307e\u305b\u3093\u3002\u30e2\u30ca\u30c9\u306e\u3061\u304b\u3089\u3092\u4f7f\u3048\u3070\u3001\u305d\u308c\u3059\u3089\u56de\u907f\u3059\u308b\u3053\u3068\u304c\u51fa\u6765\u307e\u3059\u3002\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u3053\u308c\u304b\u3089\u3057\u3070\u3089\u304f\u30e2\u30ca\u30c9\u30c8\u30e9\u30f3\u30b9\u30d5\u30a9\u30fc\u30de\u30fc\u306b\u3064\u3044\u3066\u66f8\u3044\u3066\u3044\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u7279\u5225\u306a\u578b\u3067\u3001\u30e2\u30ca\u30c9\u306b\u9069\u7528\u3057\u305f\u6642\u3001\u65b0\u305f\u306a\u5408\u6210\u3055\u308c\u305f\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fdelihiros.hatenablog.jp%2Fentry%2F2012%2F04%2F19%2F140557\" title=\"Haskell\u30e2\u30ca\u30c9\u30c8\u30e9\u30f3\u30b9\u30d5\u30a9\u30fc\u30de\u30fc(1) - \u307f\u3069\u308a\u306d\u3053\u65e5\u8a18\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","categories":["Haskell"],"height":"190","provider_name":"Hatena Blog","url":"https://delihiros.hatenablog.jp/entry/2012/04/19/140557","blog_title":"\u307f\u3069\u308a\u306d\u3053\u65e5\u8a18","author_url":"https://blog.hatena.ne.jp/paprikas/","type":"rich","published":"2012-04-19 14:05:57"}