Could I specify any config to enable a format like trailingCommas for interface/types (in TypeScript)

[qmhc]

As title, is there a way to make Biome automatically add a comma at the end of each property in an interface when formatting?

[ematipico]

No, unfortunately, we don't provide such a configuration

[qmhc]

Thanks for your quickly reply.

This is the most disruptive change I’ve encountered so far when migrating from Prettier and ESLint to Biome. Would this be a feature in the future?

[ematipico]

Generally, Biome tries following the same Prettier formatting style, apart from some exceptions. If there's a difference, it's worth filing a bug.
You can use our playground, which would highlight code diffs against prettier: https://biomejs.dev/playground/

[qmhc]

After some research, I discovered that the member-delimiter-style rule is provided by ESLint Stylistic (formerly part of typescript-eslint).

Unfortunately it's not a feature of Prettier, would you consider adding a similar feature to Biome in the future?

This is a testing repo of Eslint with member-delimiter-style rule: https://stackblitz.com/edit/vitejs-vite-3snyxthc?file=src%2Findex.ts&view=editor