traverse_ package:contiguous

traverse_ :: (Contiguous arr, Element arr a, Applicative f) => (a -> f b) -> arr a -> f ()
contiguous Data.Primitive.Contiguous
Map each element of the array to an action, evaluate these actions from left to right, and ignore the results. For a version that doesn't ignore the results, see traverse.
itraverse_ :: (Contiguous arr, Element arr a, Applicative f) => (Int -> a -> f b) -> arr a -> f ()
contiguous Data.Primitive.Contiguous
Map each element of the array and its index to an action, evaluate these actions from left to right, and ignore the results. For a version that doesn't ignore the results, see itraverse.