sirocco https://blog.hatena.ne.jp/sirocco/ sirocco の書いてもすぐに忘れるメモ https://sirocco.hatenadiary.org/ Haskell -- SimpleJSON.hs data JValue = JString String | JNumber Double | JBool Bool | JNull | JObject [(String, JValue)] | JArray [JValue] deriving (Eq, Ord, Show) Main> :t JString "foo" -- JString "foo"の型はJValue JString "foo" :: JValue Main> :t "foo" -- JString "foo"の型は[Char] "foo" :: [Char] Main> (JString… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fsirocco.hatenadiary.org%2Fentry%2F20100611%2F1276206125" title="「Real World Haskell」読書メモ(117) 4.ライブラリを書く 5.2 HaskellにおけるJSONデータ表現 - sirocco の書いてもすぐに忘れるメモ" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2010-06-11 06:42:05 rich https://sirocco.hatenadiary.org/entry/20100611/1276206125 1.0 100%