Fix use of the '!' operator inside the 'in' operator

[CodyTolene]

[CodyTolene]

Just a quick fix up with the PKTYPES check.

Oh also I removed the uart.d.ts file I created from my last push. Let me know if you're interested in including it in your repo, I can create a new PR for it later on.

Thanks!

[gfwilliams]

Thanks! I don't see a uart.d.ts in the repo (or a removal in this PR).

Right now I'd prefer not to have .ts files as they'll likely just go out of date and I'm not really up on TypeScript enough to reliably maintain them.

@rikkuness has added JSDoc to EspruinoTools (espruino/EspruinoTools#189) and that might be a good thing to add here? so then we can just have a command in package.json that will auto-generate the typescript if needed?

Where possible I prefer to have the function docs in with the function itself so it's easy to check them and keep them up to date.

[rikkuness]

We can certainly try do something similar here! In the other repo I struggled with these Universal Module Definition type files to get the JSDoc and type generation working properly, but I'm sure it's not impossible, will have a peep 😄

[gfwilliams]

Thanks! There's no urgency - it was more that if @CodyTolene wanted to add typing, that would be preferable to a separate typescript file