{"published":"2013-03-17 19:06:11","provider_name":"Hatena Blog","provider_url":"https://hatena.blog","title":"\u81ea\u52d5\u5c0e\u51fa4 \u66dc\u65e5","url":"https://www.shigemk2.com/entry/20130317/1363514771","author_name":"shigemk2","version":"1.0","description":"data Day = Monday | Tuesday | Wednesday | Thursday | Friday | Saturday | Sunday deriving (Eq, Ord, Show, Read, Bounded, Enum) -- *Main> Wednesday -- Wednesday -- *Main> show Wednesday -- \"Wednesday\" -- *Main> read \"Saturday\" :: Day -- Saturday -- *Main> Saturday == Sunday -- False -- *Main> Saturday\u2026","image_url":null,"type":"rich","width":"100%","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.shigemk2.com%2Fentry%2F20130317%2F1363514771\" title=\"\u81ea\u52d5\u5c0e\u51fa4 \u66dc\u65e5 - by shigemk2\" 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"],"blog_url":"https://www.shigemk2.com/","blog_title":"by shigemk2","author_url":"https://blog.hatena.ne.jp/shigemk2/","height":"190"}