### Environment information <details> ```bash @biomejs/biome: 2.4.8 ``` </details> ### What happened? ```js const slotFn = isFirstMount ? i => ({ [CONTENT_SLOT]: i }) : i => wrapSlotExpr(newExprs[i]); ``` Prints 2 errors: ```txt expected `:` but instead found `=>` ``` and ```txt return type annotation are a TypeScript only feature. Convert your file to a TypeScript file or remove the syntax. ``` See https://biomejs.dev/playground/?code=YwBvAG4AcwB0ACAAcwBsAG8AdABGAG4AIAA9ACAAaQBzAEYAaQByAHMAdABNAG8AdQBuAHQACgAgACAAPwAgAGkAIAA9AD4AIAAoAHsAIABbAEMATwBOAFQARQBOAFQAXwBTAEwATwBUAF0AOgAgAGkAIAB9ACkACgAgACAAOgAgAGkAIAA9AD4AIAB3AHIAYQBwAFMAbABvAHQARQB4AHAAcgAoAG4AZQB3AEUAeABwAHIAcwBbAGkAXQApADsA&language=ts ### Expected result No errors. ### Code of Conduct - [x] I agree to follow Biome's Code of Conduct
Environment information
Details
What happened?
Prints 2 errors:
and
See https://biomejs.dev/playground/?code=YwBvAG4AcwB0ACAAcwBsAG8AdABGAG4AIAA9ACAAaQBzAEYAaQByAHMAdABNAG8AdQBuAHQACgAgACAAPwAgAGkAIAA9AD4AIAAoAHsAIABbAEMATwBOAFQARQBOAFQAXwBTAEwATwBUAF0AOgAgAGkAIAB9ACkACgAgACAAOgAgAGkAIAA9AD4AIAB3AHIAYQBwAFMAbABvAHQARQB4AHAAcgAoAG4AZQB3AEUAeABwAHIAcwBbAGkAXQApADsA&language=ts
Expected result
No errors.
Code of Conduct