:: (a -> b) -> [a] -> [b] -package:base-orphans -package:ghc -package:base-compat -package:basement -package:base-compat-batteries -package:hedgehog -package:incipit-base -package:comonad -package:deepseq -package:Cabal-syntax package:vector -is:exact
O(n) Map a function over a vector.