Add Data.List.NonEmpty.deleteAt

[jamesdbrock]

https://pursuit.purescript.org/packages/purescript-lists/5.4.1/docs/Data.List.NonEmpty

Data.List.NonEmpty.deleteAt function doesn't exist, but

• Data.List.deleteAt
• Data.Array.NonEmpty.deleteAt

do exist. Seems like we should add Data.List.NonEmpty.deleteAt ?

[jamesdbrock]

deleteAt :: forall a. Int -> NonEmptyList a -> Maybe (List a)

[jamesdbrock]

deleteAt :: forall a. Int -> NonEmptyList a -> Maybe (List a)
deleteAt i (NonEmptyList (x :| xs))
  | i == 0 = Just xs
  | otherwise = L.Cons x <$> L.deleteAt (i - 1) xs

[jamesdbrock]

Also alterAt?

[garyb]

Adding these sounds good to me!