eslint-flat-config-airbnb/eslint.config.js

A mostly reasonable approach to JavaScript and React using Airbnb's ESLint config, updated for ESLint 9+

import { base } from './index.js';

export default [
    {
        ignores: ['node_modules/'],
    },
    ...base,
    {
        rules: {
            '@stylistic/indent': [2, 4, {
                ignoredNodes: [
                    'TemplateLiteral > *',
                    'JSXElement',
                    'JSXElement > *',
                    'JSXAttribute',
                    'JSXIdentifier',
                    'JSXNamespacedName',
                    'JSXMemberExpression',
                    'JSXSpreadAttribute',
                    'JSXExpressionContainer',
                    'JSXOpeningElement',
                    'JSXClosingElement',
                    'JSXFragment',
                    'JSXOpeningFragment',
                    'JSXClosingFragment',
                    'JSXText',
                    'JSXEmptyExpression',
                    'JSXSpreadChild',
                ],
                SwitchCase: 1,
            }],
            'import/extensions': ['error', 'ignorePackages', { js: 'always', mjs: 'always', jsx: 'never' }],
        },
    },
];