{"author_name":"letitride","width":"100%","title":"Haskell \u30e2\u30ca\u30c9\u306b\u3064\u3044\u3066\u306e\u5b66\u7fd2","url":"https://www.letitride.jp/entry/2020/05/08/185052","blog_title":"\u8ffd\u61b6\u884c","type":"rich","version":"1.0","height":"190","categories":["\u30c6\u30c3\u30af","\u30c6\u30c3\u30af-Haskell"],"published":"2020-05-08 18:50:52","description":"\u30e2\u30ca\u30c9 \u30e2\u30ca\u30c9\u306f\u30d0\u30a4\u30f3\u30c9 (>>=)\u95a2\u6570\u3092\u30b5\u30dd\u30fc\u30c8\u3059\u308b\u30a2\u30d7\u30ea\u30ab\u30c6\u30a3\u30d6\u30d5\u30a1\u30f3\u30af\u30bf\u30fc\u306e\u4e00\u7a2e\u3002 (>>=)\u95a2\u6570\u306e\u5b9a\u7fa9\u3002 (>>=) :: (Monad m) => m a -> (a -> m b) -> m b Monad\u3068\u3044\u3046\u6587\u8108\u306b\u5305\u3093\u3060\u5024\u3092\u3001\u5024\u3092\u53d6\u308b\u95a2\u6570\u306b\u5bfe\u3057\u3066\u6e21\u3059\u3002\u3068\u8aad\u3081\u308b\u3002 \u9069\u7528\u4f8b\u3002 ghci> Just 3 >>= (\\a -> Just(a * 3)) Just 9 \u3064\u307e\u308a\u3001\u30e2\u30ca\u30c9\u3068\u306f\u5024\u3092\u53d6\u308b\u95a2\u6570\u306b\u9069\u5fdc\u3067\u304d\u308b\u5024\u3092\u6301\u3082\u3066\u308b\u3001\u578b\u30af\u30e9\u30b9\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3060\u3068\u601d\u3046\u3002 \u30e2\u30ca\u30c9\u578b\u30af\u30e9\u30b9 class Monad m where return :: a -> m a (>>=) :: m a -> (a \u2026","provider_url":"https://hatena.blog","provider_name":"Hatena Blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fwww.letitride.jp%2Fentry%2F2020%2F05%2F08%2F185052\" title=\"Haskell \u30e2\u30ca\u30c9\u306b\u3064\u3044\u3066\u306e\u5b66\u7fd2 - \u8ffd\u61b6\u884c\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","blog_url":"https://www.letitride.jp/","author_url":"https://blog.hatena.ne.jp/letitride/","image_url":null}