typescript
https://github.com/microsoft/typescript
TypeScript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
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- Issues
- Native tsc: interface-only string index signatures no longer simplify under generic indexed access (regressed in #65059)
- Native tsc: GetEmitModuleFormatOfFile ignores content-mapper VirtualFileName (*.mts treated as CJS under module:commonjs)
- Native printer: `new (C?.().D)` emits as `new (C?.()).D` (optional call trips hasUnparenthesizedCall)
- Can you please add some new features for types: string length getter (currently `number`), string getter by index (currently `string`), array multiple spreads (currently gives the error of type)
- Update dependencies
- Native LS: JSDoc `@this` / `@param` types are `any` for hover & completions (checker OK)
- fix(isolatedDeclarations): report TS9007/TS9008 for return entity names
- panic: strings: negative Repeat count with --pretty; TS8010 span for an empty type annotation in JS ends before it starts
- panic: nil pointer dereference in CreateDiagnosticForNodeInSourceFile for a malformed "files" array in tsconfig.json
- Content mappers: saving a `watchedFiles` file that is open in the editor never re-runs `openProject` (stale types until the language server is restarted)
- Docs
- TypeScript not yet supported