Re: [Haskell] Types of when and unless in Control.Monad

On 21/04/2012, Andreas Abel <andreas.abel@ifi.lmu.de> wrote:

to avoid silly "return ()" statements like in

when cond $ do monadicComputationWhoseResultIWantToDiscard return ()

(when cond ∘ void) monadicComputationWhoseResultIWantToDiscard or when cond $ () <$ monadicComputationWhoseResultIWantToDiscard