map -package:containers is:exact -package:basement -package:base-prelude -package:dense-linear-algebra -package:charset -package:dlist -package:bytestring -package:invertible -package:imports -package:os-string -package:insert-ordered-containers -package:conduit package:unordered-containers
Transform this map by applying a function to every value.
Transform this set by applying a function to every value.
The resulting set may be smaller than the source.
>>> HashSet.map show (HashSet.fromList [1,2,3])
HashSet.fromList ["1","2","3"]