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• I have looked for existingopen or closed documentation requests that match my proposal.
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Suggested Changes

Thetypescript-eslint documentation (https://typescript-eslint.io/packages/typescript-eslint/) describes two basic use cases:

1. Using the recommended rules:

tseslint.config(eslint.configs.recommended,  ...tseslint.configs.recommended,);

2. Fully customizing the rules:

tseslint.config({plugins:{"@typescript-eslint":tseslint.plugin,},languageOptions:{parser:tseslint.parser,parserOptions:{project:true,},},rules:{"@typescript-eslint/no-floating-promises":"error",},},);

These examples both work fine for me: I can either use the recommend rules OR fully customize my own set of rules.

But, there is no example that explains how to use the recommended rules while customizing a few of them. For example, I would like to use the recommended rules PLUS no-floating-promises=error. I cannot figure out how to. I have tried:

      ...tseslint.config({files:["**/*.ts","**/*.tsx"],extends:[eslint.configs.recommended, ...tseslint.configs.recommended],rules:{"@typescript-eslint/no-floating-promises":"error",},}),

Which gives me the error:

Error: Error while loading rule '@typescript-eslint/no-floating-promises': You have used a rule which requires parserServices to be generated. You must therefore provide a value for the "parserOptions.project" property for @typescript-eslint/parser.

I've also tried:

[...tseslint.config(eslint.configs.recommended,  ...tseslint.configs.recommended,{rules:{"@typescript-eslint/no-floating-promises":"error",},}),

Which does not enable the rule.

I have no mental model for whattseslint.config is actually doing so I'm having trouble understand what should/shouldn't work here, but by specifying BOTH recommended configurations it looks like I got what I wanted:

tseslint.config(eslint.configs.recommended,  ...tseslint.configs.recommended,{plugins:{"@typescript-eslint":tseslint.plugin,},languageOptions:{parser:tseslint.parser,parserOptions:{project:true,},},rules:{"@typescript-eslint/no-floating-promises":"error",},},)

If this is how you're meant to accomplish recommended config + customizations, it would be good to document it.

Thanks for listening!

Affected URL(s)

https://typescript-eslint.io/packages/typescript-eslint/

Additional Info

No response