TypeScript

[trusktr]

If we start adding TypeScript anywhere, this is probably the best place to start, to type the utility functions.

We can worry about typing the CSS property names (like TypeStyle) after that later.

[kof]

Typescript needs maintainers, its hard for the core team to do both typescript and flow and it would be inconsistent to have one repo with flow and another one with typescript

[HenriBeck]

I think we should slowly to start using TypeScript, more and more OS projects are doing it as well (Vue, jest, etc.).

I think this would be one of the best points to start a "rewrite" from.