Maybe.FlatMap

This module implements the flatMap combinator for Maybe. This allows you to call functions that return a Maybe with arguments that are also Maybes without having to worry about ending up with a Maybe (Maybe a) return type.

For example:

getHeadFromMaybeList : Maybe List -> Maybe a
getHeadFromMaybeList =
    flatMap List.head

FlatMaps

flatMap : (a -> Maybe b) -> Maybe a -> Maybe b

flatMap2 : (a -> b -> Maybe c) -> Maybe a -> Maybe b -> Maybe c

flatMap3 : (a -> b -> c -> Maybe d) -> Maybe a -> Maybe b -> Maybe c -> Maybe d

flatMap4 :

(a -> b -> c -> d -> Maybe e)

-> Maybe a

-> Maybe b

-> Maybe c

-> Maybe d

-> Maybe e

flatMap5 :

(a -> b -> c -> d -> e -> Maybe f)