:: (a -> b) -> [a] -> [b] is:exact -package:quickcheck-instances -package:imports -package:base -package:semigroupoids -package:adjunctions -package:comonad -package:appar -package:base-compat -package:base-prelude -package:deepseq -package:basement -package:base-compat-batteries package:vector
O(n) Map a function over a vector.