:: (a -> b) -> [a] -> [b] -package:stm-hamt -package:ghc -package:semigroupoids -package:comonad -package:base -package:appar -package:base-compat -package:shelly is:exact -package:hedgehog -package:generic-deriving package:deepseq

(<$!!>) :: (Monad m, NFData b) => (a -> b) -> m a -> m b
deepseq Control.DeepSeq
Deeply strict version of <$>.