[Haskell-cafe] Use forM_ with Maybe, it's Foldable!
johnw at fpcomplete.com
Sun Jan 27 06:55:53 CET 2013
>>>>> Felipe Almeida Lessa <felipe.lessa at gmail.com> writes:
> A few days ago I decided to hoogle the type of whenJust  and what I
> discovered is that
> import Data.Foldable (forM_)
> whenJust = forM_
You can also use "for_", if you want to use Applicative instead of Monad.
FP Complete Haskell tools, training and consulting
http://fpcomplete.com johnw on #haskell/irc.freenode.net
More information about the Haskell-Cafe