typescript
https://github.com/microsoft/typescript
TypeScript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
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- Issues
- Speed up narrowing of literal unions
- (Proposal) more-sophisticated CFA, and Narrowing Boolean Types
- Switching on a template literal expression does not narrow the interpolated union variable
- [API] No jsDocParsingMode, and reparsed JSDoc types appear as syntax on the declarations they document
- Disallow optional calls on import.defer
- Fixed signature caching issue caused by reentrant signature checking
- Handle tsc watch and profiling signals
- Fix importHelpers incorrectly requiring tslib for native #private class members (#63728)
- Restore go-to-definition for triple-slash lib references
- Flip files from CRLF to LF
- Docs
- TypeScript not yet supported