Disable individual prettier options

[caribou-code]

My understanding is that prettier sets defaults for options, for example I believe the arrowParens option defaults to avoid. Is there a way to disable specific options/rules entirely? For example if I don't want prettier to change arrow function param styling at all, so I want to disable the arrowParens rule entirely?

My main reason for this is because I can get ESLint to do everything I want from prettier except the printWidth option (the equivalent max-len rule in ESLint isn't compatible with autofix). So I want to disable all prettier rules except printWidth, so ESLint is my single source of truth for linting rules (with that 1 exception).

[kachkaev]

Hi @caribou-code! Disabling Prettier rules is not possible by design. Prettier works as a printer, so applies to the whole doc. The only option to make formatting exceptions is to use prettier-ignore comments. However, they are supposed to be used very rarely.

See https://prettier.io/docs/en/comparison.html for more details.

The best option to make Prettier compatible with ESLint is to add eslint-config-prettier to your project. It will turn conflicting ESLint rules off, thus making ESLint focused only on semantics. This works really well because formatting everything with Prettier instead of ESLint reduces the number of squiggly red lines you see in your editor. This reduces distraction. There are other alternatives to combine ESLint and Prettier listed in docs, but I strongly recommend the first option. It may need a small shift in your mindset, but is definitely worth it long term!

[kachkaev]

A few more thoughts can be found here: prettier/eslint-plugin-prettier#532 (comment)

[caribou-code]

Thanks, the solution you suggest is what I've been doing for the last few years, but the problem is needing to disable a large number of ESLint rules via eslint-config-prettier, needing to remember not to re-add any of those specific rules, and needing to get the order of ESLint extensions correct (Prettier goes last). It all seems very flakey.

I understand Prettier applies to the whole document, but why would it not be possible to disable some rules? There's already a .prettierrc config file to change individual rules. Couldn't we just set rules to false or 'off' and those specific ones wouldn't be processed on the whole document?