Typescript: Constant enums and namespaces are not supported.

[890f2151c2be69c51db72017546d00fd]

Can you provide little more info about this please?
Why they are not supported?
Do you plan support them later?

[christianchown]

They're not supported due to providing Typescript via Babel - https://blogs.msdn.microsoft.com/typescript/2018/08/27/typescript-and-babel-7/

Here's some thoughts on those features as they relate to CRA from the Typescript Project Manager: #4837 (comment)

[christianchown]

Ah, that comment is hidden due to the length of the thread in that PR. Here it is:

[Timer]

@milanholy83 they're not supported because they're limitations in the Babel implementation, though:

1. Namespaces are deprecated. The TypeScript documentation is going to remove all references to them in examples and stop usage. In other words, you should not be using namespaces anymore.
2. Const Enums are rarely needed and often misused.