:: (a -> b) -> [a] -> [b] is:exact -package:singletons -package:appar -package:Cabal-syntax -package:base-compat-batteries -package:shelly -package:base -package:base-prelude -package:imports -package:base-compat -package:semigroupoids -package:integration -package:comonad package:vector
O(n) Map a function over a vector.