Feature: Optional field foo? should be translated to js.UndefOr

[exoego]

TypeScript has foo? notation to indicate optional (can be null/undefined) type

• optional field
• optional method parameter

Currently, scalajs-ts-importer converts foo?: T; into foo: T which can not accept js.undefined.

scala-js-ts-importer/samples/numberlit.d.ts

Line 9 in 12bc022

state?: 0 | 1;

scala-js-ts-importer/samples/numberlit.d.ts.scala

Line 12 in 12bc022

var state: Int = js.native

I think it should be converted to js.UndefOr[T]

[sjrd]

The link to the TypeScript documentation you gave is about optional parameters, but your issue talks about optional fields.

[exoego]

Sorry, updated the links.