:: (a -> b) -> [a] -> [b] is:exact -package:hspec-core -package:imports -package:adjunctions -package:basement -package:incipit-base -package:appar -package:foundation -package:comonad -package:integration package:deepseq

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