typescript
https://github.com/microsoft/typescript
TypeScript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
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- Issues
- Fixed narrowing of optional chains using type predicates
- Error on destructured nullables
- `isolatedModules` does not generate the same code
- [Control flow] Array filter with typeguard works differently following array initial value
- undefined is narrowed away incorrectly
- Find All References fails for CommonJS named exports in checkJs Mode
- Bug: null can be excluded by !== null in flow before typeof === 'object', but not excluded by predicate function.
- A new generic type can be used for file path completion(intellisense)
- feat: allow generics in type parameters [WIP]
- Add numeric constraints to type parameters of mapped types with array/tuple intersections constraints
- Docs
- TypeScript not yet supported