microsoft / microsoft/TypeScript
Support `Promise.allKeyed`/`Promise.allSettledKeyed` methods in `esnext` (eventually `es2027`)
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Domain: lib.d.ts
Suggestion
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Description
The "await dictionary" proposal is at stage 3 and brings the following methods.
Promise.allKeyedPromise.allSettledKeyed
We should add support in TypeScript 7.1.
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reading the linked TC39 await dictionary proposal and the existing TypeScript ESNext Promise library declarations. Identify how standard-library methods are represented for the esnext target, then add both keyed methods for TypeScript 7.1 and verify that their types are exposed. Done means both methods are available through the esnext library without type errors.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript
- Domain
- compilers
- Issue type
- Feature
- Difficulty
- 2/5
- Estimated time
- 1-3 hours
- Activity status
- Quiet
- Clarity
- Mostly clear
- Newbie friendliness
- 65/100