eslint.config.cjs

const globals = require('globals');
const js = require('@eslint/js');

const {
	FlatCompat,
} = require('@eslint/eslintrc');

const compat = new FlatCompat({
	baseDirectory: __dirname,
	recommendedConfig: js.configs.recommended,
	allConfig: js.configs.all,
});

module.exports = [...compat.extends('eslint:recommended'), {
	languageOptions: {
		globals: {
			...globals.node,
		},

		ecmaVersion: 2021,
		sourceType: 'commonjs',
	},

	rules: {
		'arrow-spacing': ['warn', {
			before: true,
			after: true,
		}],

		'brace-style': ['error', 'stroustrup', {
			allowSingleLine: true,
		}],

		'comma-dangle': ['error', 'always-multiline'],
		'comma-spacing': 'error',
		'comma-style': 'error',
		curly: ['error', 'multi-line', 'consistent'],
		'dot-location': ['error', 'property'],
		'handle-callback-err': 'off',
		indent: ['error', 'tab'],
		'keyword-spacing': 'error',

		'max-nested-callbacks': ['error', {
			max: 4,
		}],

		'max-statements-per-line': ['error', {
			max: 2,
		}],

		'no-console': 'off',
		'no-empty-function': 'error',
		'no-floating-decimal': 'error',
		'no-inline-comments': 'error',
		'no-lonely-if': 'error',
		'no-multi-spaces': 'error',

		'no-multiple-empty-lines': ['error', {
			max: 2,
			maxEOF: 1,
			maxBOF: 0,
		}],

		'no-shadow': ['error', {
			allow: ['err', 'resolve', 'reject', 'msg'],
		}],

		'no-trailing-spaces': ['error'],
		'no-undef': 'off',
		'object-curly-spacing': ['error', 'always'],
		'prefer-const': 'error',
		quotes: ['error', 'single'],
		semi: ['error', 'always'],

		'space-before-function-paren': ['error', {
			anonymous: 'never',
			named: 'never',
			asyncArrow: 'always',
		}],

		'space-in-parens': 'error',
		'space-infix-ops': 'error',
		'space-unary-ops': 'error',
		'spaced-comment': 'error',
		yoda: 'error',
	},
}];