Extend maybe type, maybe...

[alex35mil]

Sorry if it was discussed before or it doesn't make any sense, but:

?string -> string | null
??string -> string | null | void

Thoughts?

[jesseschalken]

While I agree that ?T should mean T | null (see microsoft/TypeScript#7426 (comment)), I think that ship has already sailed.

I'm not sure how the Flow team decided ?T should mean T | null | void, but the JavaScript community is so chock-full with disagreement on the purpose of null and undefined that it's probably impossible to change Flow's shorthand now that it's already been implemented.

[nmn]

I don't think this change is worth making anymore as it would probably cause more confusion than good. Further, I don't think bike-shedding over this is going to be productive as you CAN use string | null if that's what you need.