:: (a -> b) -> [a] -> [b] -package:base-orphans -package:Cabal-syntax -package:semigroupoids -is:exact -package:incipit-base -package:base-compat-batteries -package:adjunctions -package:basement -package:generic-deriving package:deepseq

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