javascript - Optional Chaining Operator in Typescript

Question

In javascript, Optional Chaining Operator is supported by the babel plugin.

But I can't find how to do this in Typescript. Any idea?

Answer 1

At time of writing, TypeScript does not support the optional chaining operator. See discussion on the TypeScript issue tracker: https://github.com/Microsoft/TypeScript/issues/16

As a warning, the semantics of this operator are still very much in flux, which is why TypeScript hasn't added it yet. Code written today against the Babel plugin may change behavior in the future without warning, leading to difficult bugs. I generally recommend people to not start using syntax whose behavior hasn't been well-defined yet.