typescript
https://github.com/microsoft/typescript
TypeScript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
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- Issues
- Analyze control flow effects of lambdas passed as arguments
- Infer AssertsIdentifier type predicates
- New `--enforceReadonly` compiler option to enforce read-only semantics in type relations
- [NewErrors] 5.5.0-dev.20240414 vs 5.4.5
- intl.d.ts: cleanup, add missing features, fix library discrepancies
- preserve declarations if @internal is mentioned in unrelated comment
- Fixed an issue with apparent mapped type keys
- Expose design-time type information in TC39 decorator metadata when `emitDecoratorMetadata: true`
- Proposal for merging array or object options in tsconfig file
- Problems with Node.js `--experimental-detect-module`
- Docs
- TypeScript not yet supported