eslint.config.js

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 = [
  {
    ignores: ['**/.prettierrc.js', '**/.eslintrc.js', 'admin/words.js', 'build/**'],
  },
  ...compat.extends('eslint:recommended'),
  {
    plugins: {},

    languageOptions: {
      globals: {
        ...globals.node,
        ...globals.mocha,
      },

      ecmaVersion: 2020,
      sourceType: 'commonjs',
    },

    rules: {
      indent: [
        'error',
        2,
        {
          SwitchCase: 1,
        },
      ],

      'no-console': 'off',

      'no-unused-vars': [
        'error',
        {
          ignoreRestSiblings: true,
          argsIgnorePattern: '^_',
        },
      ],

      'no-var': 'error',
      'no-trailing-spaces': 'error',
      'prefer-const': 'error',

      quotes: [
        'error',
        'single',
        {
          avoidEscape: true,
          allowTemplateLiterals: true,
        },
      ],

      semi: ['error', 'always'],
    },
  },
];