{"url":"https://c4se.hatenablog.com/entry/2014/08/06/125825","title":"Ruby\u81ea\u4f53\u3092Maybe\u95a2\u624b\u3068\u898b\u505a\u3057\u3066\u3001ActiveSupport\u306etry\u3092\u5b9f\u88c5\u3059\u308b","provider_url":"https://hatena.blog","blog_url":"https://c4se.hatenablog.com/","provider_name":"Hatena Blog","published":"2014-08-06 12:58:25","blog_title":"c4se\u8a18\uff1a\u3055\u3063\u3061\u3083\u3093\u3067\u3059\u3088\u2606","description":"cf. n\u4eba\u76ee\u306e\u6240\u696d\u3060\u304cRuby\u3067Maybe monad (Option monad) \u3092\u4f5c\u3063\u305f http://c4se.hatenablog.com/entry/2014/07/28/034752 cf. Ruby\u306b\u3066Maybe\u95a2\u624b\u3092\u4f7f\u3063\u3066\u3001ActiveSupport\u306etry\u3092\u5b9f\u88c5\u3059\u308b http://c4se.hatenablog.com/entry/2014/08/02/222156 \u3067Ruby\u306enil check\u3092\u8ffd\u7a76\u3057\u305f\u3002 \u95a2\u624b (Functor) \u3068\u306f \u570f (Category) \u3068\u306f\u5bfe\u8c61 (object) \u3068\u5c04 (morphism) \u306e\u985e (class) \u3067\u3042\u3063\u3066\u3001\u8a00\u3044\u63db\u3078\u308c\u3070\u3001\u306a\u3093\u2026","image_url":null,"width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fc4se.hatenablog.com%2Fentry%2F2014%2F08%2F06%2F125825\" title=\"Ruby\u81ea\u4f53\u3092Maybe\u95a2\u624b\u3068\u898b\u505a\u3057\u3066\u3001ActiveSupport\u306etry\u3092\u5b9f\u88c5\u3059\u308b - c4se\u8a18\uff1a\u3055\u3063\u3061\u3083\u3093\u3067\u3059\u3088\u2606\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_name":"Kureduki_Maari","categories":["Programming","Ruby"],"version":"1.0","author_url":"https://blog.hatena.ne.jp/Kureduki_Maari/","height":"190","type":"rich"}