Added maybe function

[JustusAdam]

I'd really like to get the maybe function back. In Haskell I tend to use it a ton.

[texastoland]

I think,

map (+1) (fromString x) `withDefault` 0

reads better than,

maybe (+1) 0 (fromString x) -- flipped order

for Elm's target user coming from JS. I bet it already exists in another package though?

[texastoland]

I think,

map (+1) (fromString x) `withDefault` 0

reads better than,

maybe (+1) 0 (fromString x) -- flipped order

for Elm's target user coming from JS. I bet it already exists in another package though?

[texastoland]

Check out Maybe.Extra's default operator:

map (+1) (fromString x) ? 0

[texastoland]

Check out Maybe.Extra's default operator:

map (+1) (fromString x) ? 0

[evancz]

I think map ((+) 1) maybe ? 0 is preferable over this. We have #216 to track that, but as @dnalot says, you can use it in Maybe.Extra until we make a decision about moving it into core.

[evancz]

I think map ((+) 1) maybe ? 0 is preferable over this. We have #216 to track that, but as @dnalot says, you can use it in Maybe.Extra until we make a decision about moving it into core.