:: (a -> b) -> [a] -> [b] is:exact -package:singletons -package:appar -package:base-compat -package:incipit-base -package:basement -package:shelly -package:imports -package:integration -package:semigroupoids -package:generic-deriving -package:foundation -package:base-compat-batteries package:vector
O(n) Map a function over a vector.