{"description":"http://twitpic.com/3w34bo \u306f\u3058\u3081\u306b \u30e2\u30ca\u30c9\u3068\u3044\u3048\u3070Haskell\u3001Haskell\u3068\u3044\u3048\u3070\u30e2\u30ca\u30c9\u304c\u6709\u540d\u3067\u3059\u304c\u3001\u30e2\u30ca\u30c9\u306f\u7279\u5b9a\u306e\u8a00\u8a9e\u3068\u306f\u7121\u95a2\u4fc2\u306e\u4ed5\u7d44\u307f\u3067\u3059\u306e\u3067\u3001F#\u3067\u3082\u4f7f\u3048\u307e\u3059\u3002\u305f\u3060\u5358\u306b\u4f7f\u3048\u308b\u3060\u3051\u3067\u306a\u304f\u30b3\u30f3\u30d4\u30e5\u30c6\u30fc\u30b7\u30e7\u30f3\u5f0f\u3068\u3044\u3046\u30e2\u30ca\u30c9\u3092\u3088\u308a\u4fbf\u5229\u306b\u4f7f\u3046\u305f\u3081\u306e\u6587\u6cd5\u307e\u3067\u7528\u610f\u3055\u308c\u3066\u3044\u307e\u3059\u3002 \u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001option\u578b\u3092\u4fbf\u5229\u306b\u6271\u3046\u305f\u3081\u306eMaybe\u30e2\u30ca\u30c9\u3092\u4f8b\u306b\u30e2\u30ca\u30c9\u306e\u3059\u3054\u3055\u3092\u7d39\u4ecb\u3057\u3066\u3044\u304d\u307e\u3059\u3002 Maybe\u30e2\u30ca\u30c9\u306e\u3059\u3054\u3044\u3068\u3053 option\u578b\u3063\u3066\u3044\u3044\u3067\u3059\u3088\u306d\u3002\u306c\u308b\u307d\u306e\u3067\u843d\u3061\u308b\u5fc3\u914d\u3082\u306a\u3044\u3067\u3059\u3057\u3002Maybe\u30e2\u30ca\u30c9\u306f\u305d\u3093\u306aoption\u578b\u3092\u4fbf\u5229\u306b\u6271\u3046\u305f\u3081\u306e\u30e2\u30ca\u30c9\u3067\u3059\u3002option\u578b\u3092\u6271\u3046\u306e\u306bMa\u2026","type":"rich","blog_url":"https://mzp.hatenadiary.org/","height":"190","published":"2011-02-05 00:00:00","provider_name":"Hatena Blog","width":"100%","author_url":"https://blog.hatena.ne.jp/mzp/","categories":["F#","Monad"],"url":"https://mzp.hatenadiary.org/entry/20110205/monad","provider_url":"https://hatena.blog","image_url":"https://cdn-ak.f.st-hatena.com/images/fotolife/m/mzp/20110203/20110203222658.jpg","version":"1.0","author_name":"mzp","title":"F#\u30d7\u30ed\u30b0\u30e9\u30de\u306e\u305f\u3081\u306eMaybe\u30e2\u30ca\u30c9\u5165\u9580","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmzp.hatenadiary.org%2Fentry%2F20110205%2Fmonad\" title=\"F#\u30d7\u30ed\u30b0\u30e9\u30de\u306e\u305f\u3081\u306eMaybe\u30e2\u30ca\u30c9\u5165\u9580 - \u307f\u305a\u3074\u30fc\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>","blog_title":"\u307f\u305a\u3074\u30fc\u65e5\u8a18"}