📝 Biome cannot handle JSON formatting but Prettier can

[dalisoft]

📝 Biome cannot handle JSON formatting but Prettier can

[SuperchupuDev]

biome only formats known JSON extensions (.json, .jsonc etc), and .prettierrc is not one of them. i believe prettier supports .prettierrc.json though, renaming the prettier config file to that should work. also the fact that your current prettier config file isn't valid JSON

[ematipico]

Biome doesn't know how to handle rc files, so it's not a bug.

RC files can contain three languages: JavaScript, JSON or YAML, hence Biome can't handle them

[dalisoft]

@SuperchupuDev @ematipico I am set type of file as JSON on VSCode then captured video demo, please see. Or look at playground link and output differs even i am set file type to json

[SuperchupuDev]

the playground link you sent contains invalid JSON, with things not supported by JSON such as unquoted keys and single quotes

[dalisoft]

@SuperchupuDev and prettier formats it pretty well. So seems currently (or even on future) Biome formats strictly without any unsafe formats for invalid JSON format to JSON formatting?

[SuperchupuDev]

it looks like the format you're trying to use is json5 which is supported by prettier but not biome. there was a discussion about it #282, it's not widely supported across developer tools