Add TypeScript Support

[maneetgoyal]

Any plans for adding types?

[domoritz]

See #274

[jheer]

Yes, I would like to add types! I think my preferred route is not to port to TypeScript, but rather provide type files included along side the JavaScript source files. (Similar to how Observable Plot does this.)

[domoritz]

Can't wait for https://tc39.es/proposal-type-annotations/. 🙏

[maneetgoyal]

Yes, I would like to add types! I think my preferred route is not to port to TypeScript, but rather provide type files included along side the JavaScript source files. (Similar to how Observable Plot does this.)

Yeah, makes sense. Can avoid/defer a rewrite/migration to TS.

[domoritz]

https://github.com/NiGhTTraX/ts-monorepo seems like a good solution to supporting typescript in a monorepo (without the need to rebuild everything to get the latest changes in downstream packages).

[domoritz]

#355 gets us pretty close so I'll close this for now.

[domoritz]

We still have a lot of places without types.