foldMapA -package:relude

foldMapA :: (Foldable t, Alternative m) => (a -> m b) -> t a -> m b

Map a Foldable collection of values into a nondeterministic computation using the supplied action.

foldMapA :: (Alternative f, Foldable t) => (a -> f b) -> t a -> f b

Branch over a Foldable collection of values using the supplied action.

foldMapA :: (Foldable t, Applicative f, Monoid m) => (a -> f m) -> t a -> f m

Map each element of a structure to an action, evaluate these actions from left to right, and concat the monoid results.