typescript
https://github.com/microsoft/typescript
TypeScript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
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- Issues
- compiler memory leak in 5.8.x and upwards
- TS2742 “The inferred type of 'default' cannot be named” with ESLint `defineConfig`
- Fixed `silentNeverType` leak by propagating it through `getIndexType`
- Fix JSDoc @type completion inside function argument
- Fix #61429: Fast arithmetic type check for type-parameters upper-bounded by `bigint` fixed
- Fixed types of parenthesized expressions at locations with `@satisfies` and `@type` mix
- Use tuple context based on apparent type of the contextual type uninstantiated by return mapper
- Properly propagate `ObjectFlags.NonInferrableType` onto non-aliased anonymous object types instantiations
- Separate JSX/TSX from React and present it as a general XML-in-JS solution
- Defer checking call and new expressions with context sensitive arguments
- Docs
- TypeScript not yet supported