:: (a -> b) -> [a] -> [b] -package:stm-hamt -package:basement -package:vector -package:integration -package:semigroupoids -is:exact is:exact -package:base-prelude -package:foundation -package:adjunctions package:deepseq

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