Discrepancy in the recommended

[erosman]

eslint@9.0.0-rc.0
ESLint Config Inspector v0.2.1

While checking ESLint Config Inspector, I noticed some discrepancies and I am not sure whether they belong to the Config Inspector or the ESLint runtime.

The config that I use imports configs.recommended e.g.

import js from "@eslint/js";

export default [
  js.configs.recommended, 
  // ...
];

There are 4 unused recommended rules.

The recommenced data comes from the runtime.
(See also: Mark recommended, Mark imported config)

There appears to be a discrepancy somewhere since they don't appear in js/src/configs/eslint-recommended.js.

https://github.com/eslint/eslint/blob/b7cf3bd29f25a0bab4102a51029bf47c50f406b5/packages/js/src/configs/eslint-recommended.js#L11-L75

There are also a few rules listed under in config #1 which is configs.recommended that dont have recommended: true e.g.

[nzakas]

@antfu might be able to answer this better.

[antfu]

@erosman I guess you have a different versions of eslint and @eslint/js?

[erosman]

How can I check the version/content of @eslint/js?

Looking at /home/***/node_modules/@eslint/js/src/configs/eslint-recommended.js, it matches /packages/js/src/configs/eslint-recommended.js

Can there be an issue generated from VS Code ESLint extension? 🤔

eslint@9.0.0-rc.0
ESLint Config Inspector v0.2.1
VS Code v1.87.2
VS Code ESLint extension v2.4.4

[antfu]

Try pnpm why -r @eslint/js

[erosman]

This is I what I get.

npm why -r @eslint/js

@eslint/js@9.0.0-rc.0 dev
node_modules/@eslint/js
  @eslint/js@"9.0.0-rc.0" from eslint@9.0.0-rc.0
  node_modules/eslint
    dev eslint@"^9.0.0-rc.0" from the root project

@eslint/js@8.57.0 dev peer
node_modules/eslint/node_modules/eslint/node_modules/@eslint/js
  @eslint/js@"8.57.0" from eslint@8.57.0
  node_modules/eslint/node_modules/eslint
    peer eslint@"^6.0.0 || ^7.0.0 || >=8.0.0" from @eslint-community/eslint-utils@4.4.0
    node_modules/eslint/node_modules/@eslint-community/eslint-utils
      @eslint-community/eslint-utils@"^4.2.0" from eslint@9.0.0-rc.0
      node_modules/eslint
        dev eslint@"^9.0.0-rc.0" from the root project
      @eslint-community/eslint-utils@"^4.2.0" from eslint@8.57.0

[antfu]

Clearly you have @eslint/js@8.57.0

[erosman]

What shall I do?
I am new to ESLint & npm.

[mdjermanovic]

I'd guess that config-inspector gets builtin rules from an ESLint version that is installed as its peer dependency rather than from locally installed prerelease version.

config-inspector/package.json

Lines 32 to 34 in 509a1ae

	"peerDependencies": {
	"eslint": "^8.50.0"
	},

config-inspector/src/configs.ts

Line 31 in 509a1ae

const eslintRules = await import(['eslint', 'use-at-your-own-risk'].join('/')).then(r => r.default.builtinRules)