map is:exact -package:lens -package:case-insensitive -package:containers -package:basement -package:imports -package:blaze-html -package:ghc -package:os-string -package:base -package:pipes -package:bytestring package:conduit
Apply a transformation to all values in a stream.
Subject to fusion
Apply a transformation to all values in a stream.
Subject to fusion
Since 0.3.0