map -package:containers -package:charset -package:amazonka-core -package:basement -package:aeson -is:exact is:exact -package:dlist -package:bytestring -package:pipes -package:case-insensitive -package:ghc -package:hedgehog -package:Cabal-syntax -package:dense-linear-algebra package:base-prelude

map :: (a -> b) -> [a] -> [b]
base-prelude BasePrelude
map f xs is the list obtained by applying f to each element of xs, i.e., 
map f [x1, x2, ..., xn] == [f x1, f x2, ..., f xn]
map f [x1, x2, ...] == [f x1, f x2, ...]

>>> map (+1) [1, 2, 3]
[2,3,4]