typescript
https://github.com/microsoft/typescript
TypeScript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
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- Issues
- [NewErrors] 5.5.0-dev.20240414 vs 5.4.5
- Infer type predicates for functions with multiple returns
- intl.d.ts: cleanup, add missing features, fix library discrepancies
- [experiment] error on comparisons where the only comparable type is undefined
- Infer type arguments on instance check
- preserve declarations if @internal is mentioned in unrelated comment
- A Pragmatic, Not-Really-Typed Errors Proposal
- Fixed an issue with apparent mapped type keys
- Allow type narrowing to be specified as always-on or always-off
- Regression performance compiling types in version 5.4.2
- Docs
- TypeScript not yet supported