waiでrequestの基本的な使い方を確認するサンプル。 wai_hello.hs wai_index.html *Main> main start app function ==================================== requestMethod : GET secure : False rawPathInfo : /cgi.php rawQueryString : ?foo=1111 requestHe…

> :t map map :: (a -> b) -> [a] -> [b] > :t fmap fmap :: Functor f => (a -> b) -> f a -> f b > :t liftM liftM :: Monad m => (a1 -> r) -> m a1 -> m r > :t (<*>) . pure (<*>) . pure :: Applicative f => (a -> b) -> f a -> f b > map (+1) [1,2,…