map -package:containers -package:basement -package:conduit -is:exact -package:monoidal-containers -package:pipes -package:dlist -package:psqueues -package:bytestring -is:exact -package:Cabal-syntax -package:unordered-containers -package:regex-tdfa -package:dense-linear-algebra -package:foldl -is:exact -package:ghc -package:vector -package:integration -package:blaze-html -package:case-insensitive -package:base-compat-batteries -package:stm-containers package:vector-stream
Map a monadic function over a
Stream
Execute a monadic action for each element of the
Stream
Apply monadic function to each element and drop all Nothings