typescript
https://github.com/microsoft/typescript
TypeScript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
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- Issues
- Generic indexed access on type with optional properties doesn't include `undefined` in its constraint in `exactOptionalPropertyTypes`
- Binary expression in an `if` condition can't narrow identifier reassigned within expression of the optional chain
- Provide Compiler API way to disable type checking for a source file
- Add the possibility to import Types from global loaded Librarys
- Multimatch Overloads and a New User Contract for Overload Declarations.
- `Object(x) === x` fails to narrow to `object`
- Crash when defining `Array` type via `[]` syntax
- feat: support generic type name: `Record<name: string, value: string>`
- Mistake in the docs
- Weak type not rejected when intersected with `ThisType`
- Docs
- TypeScript not yet supported