:: (a -> b) -> [a] -> [b] -package:base-orphans -package:base-compat -package:Cabal-syntax -package:basement -package:integration -package:base -package:incipit-base -package:ghc -package:base-compat-batteries -package:base-prelude -package:generic-deriving package:vector
O(n) Map a function over a vector.