Function to map Maybes to a monad

Question

I often use expressions of the form maybe (return ()) someFunc someMaybe.

Searching for a function Monad m => (a -> m ()) -> Maybe a -> m () on hoogle doesn't yield a specific result. Isn't there any library function for this?

Answer 1

You can use mapM_ or forM_ from Data.Foldable for this. See also the recent discussion on the librariers mailing list.