microsoft / microsoft/TypeScript
Property does not exist on `globalThis` immediately after declaring it
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Description
Code
declare module "buf" {
global {
class Buffer {}
}
import Buf = globalThis.Buffer;
export { Buf as Buffer };
}
Expected behavior:
No errors.
Actual behavior:
Property 'Buffer' does not exist on type 'typeof globalThis'.
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 with the linked TypeScript Playground reproduction and trace how the module's global declaration is made available before the globalThis.Buffer import is checked. The issue is done when the example produces no property-does-not-exist error while preserving the exported Buffer type.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- typescript
- Domain
- compilers
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100