Twan van Laarhoven wrote: > Hello library people, > > > I have noticed that many projects include a 'concatMapM' function: > > concatMapM :: (Monad m) => (a -> m [b]) -> [a] -> m [b] > > I think this is useful in general, so let's add it to Control.Monad. Me too. (therefore I think it should be added.) ~Isaac