:: (a -> b) -> [a] -> [b] -package:list-t -package:ghc -package:adjunctions -package:Cabal-syntax -package:base-prelude is:exact -package:foundation -package:base-compat-batteries -package:appar -package:generic-deriving -package:basement package:deepseq

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