Prelude.Traversable

interface Traversable 

traverse : Traversable t => Applicative f => (a -> f b) -> t a -> f (t b)

Map each element of a structure to a computation, evaluate those
computations and combine the results.

for : Traversable t => Applicative f => t a -> (a -> f b) -> f (t b)

Like traverse but with the arguments flipped

for_ : Foldable t => Applicative f => t a -> (a -> f b) -> f ()

Like traverse_ but with the arguments flipped

sequence : Traversable t => Applicative f => t (f a) -> f (t a)

Evaluate each computation in a structure and collect the results

sequence_ : Foldable t => Applicative f => t (f a) -> f ()

Evaluate each computation in a structure and discard the results

traverse_ : Foldable t => Applicative f => (a -> f b) -> t a -> f ()

Map each element of a structure to a computation, evaluate those
computations and discard the results.