Hi @Sportzpikachu, thanks for taking the time to report this and welcome to Wikimedia Phabricator!

Unfortunately this Wikimedia Phabricator task lacks information.
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That should be a specific example, basic context (what are "Typescript typings"? link welcome), and a use case.

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There doesn't seem to be anything to do here for PET here. Please re-tag if it becomes clear that there is something for us to work on here.

For those wanting a temporary solution, https://github.com/wikimedia-gadgets/types-mediawiki is available to use.

In T263914#6703109, @Sportzpikachu wrote:

For those wanting a temporary solution, https://github.com/wikimedia-gadgets/types-mediawiki is available to use.

Now published on npm as https://www.npmjs.com/package/types-mediawiki

Hello, @Jdlrobson, is https://github.com/wikimedia/typescript-types for this?

@Lens0021 possibly.

My team has been experimenting with a definition in Vector and I am at the point that I was interested in using it elsewhere (WikimediaEvents).

I did take a look at types-mediawiki but it didn't quite cover the interfaces in Vector and WikimediaEvents hence this publish - I'd imagine eventually we'd want a @wikimedia scoped npm package.

The frontends standards group is a more appropriate tag here to work out who's using TypeScript, what the needs are, communicate this issue more broadly and find a common solution.

Another possible duplicate: https://github.com/wikimedia/mediawiki-types

Change 670897 had a related patch set uploaded (by Jdlrobson; author: Jdlrobson):

[mediawiki/skins/Vector@master] Use centralized MediaWiki typescript definition

https://gerrit.wikimedia.org/r/670897

Change 670897 merged by jenkins-bot:

[mediawiki/skins/Vector@master] Use centralized MediaWiki typescript definition

https://gerrit.wikimedia.org/r/670897

I looked over the two "prototypical implementations" mentioned in the task description now but they're bare-bones. Types-mediawiki is quite well-developed (even mw.config is typed thanks to this PR) A few obscure interfaces like mw.experiments aren't there, but can be easily added. @Jdlrobson Do you want to move this repo over to the wikimedia github organization? Then I suppose we can have it published under the wikimedia npm organization as well. I feel this would simplify matters for the wikimedia projects wishing to use TypeScript.

@SD0001 I'm happy with whatever is decided but it's not my decision to make. I'm hoping a decision will get made now T293125 is happening.

Regarding npm... yes I'll fix that shortly.

FYI, TypeScript definitions of OOjs and OOUI are published at DefinitelyTyped and available on npm:
https://www.npmjs.com/package/@types/oojs
https://www.npmjs.com/package/@types/oojs-ui

Edit: those declarations are written and published to DT by me, thus they are not official.