{"version":"1.0","author_name":"ku-ma-me","type":"rich","width":"100%","title":" \u30d5\u30a3\u30fc\u30eb\u30c9\u30e9\u30d9\u30eb\u306e\u66f4\u65b0","provider_url":"https://hatena.blog","image_url":null,"blog_title":"\u307e\u3081\u3081\u3082","blog_url":"https://mametter.hatenablog.com/","url":"https://mametter.hatenablog.com/entry/20071025/p3","categories":["Haskell"],"description":"\u30d5\u30a3\u30fc\u30eb\u30c9\u30e9\u30d9\u30eb\u3092\u6301\u3064 data \u578b\u306e\u66f4\u65b0\u306e\u6587\u6cd5\u304c\u306a\u3093\u304b\u3060\u3055\u304f\u611f\u3058\u307e\u3059\u3002 updateFoo g v = g { fooField = v } \u30e9\u30d9\u30eb\u3092\u30d1\u30e9\u30e1\u30fc\u30bf\u5316\u3067\u304d\u305f\u3089\u4fbf\u5229\u306a\u306e\u306b\u306a\u3042\u3002 update g f v = g { f = v } \u3067\u3082\u3053\u308c\u3001\u53c2\u7167\u900f\u660e\u6027\u3092\u5931\u3046\u304b\u306a\uff1f\u3088\u304f\u8003\u3048\u3066\u306a\u3044\u3051\u3069\u3002","author_url":"https://blog.hatena.ne.jp/ku-ma-me/","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fmametter.hatenablog.com%2Fentry%2F20071025%2Fp3\" title=\" \u30d5\u30a3\u30fc\u30eb\u30c9\u30e9\u30d9\u30eb\u306e\u66f4\u65b0 - \u307e\u3081\u3081\u3082\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_name":"Hatena Blog","published":"2007-10-25 00:00:02","height":"190"}