eslint.config.js

'use strict';

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

module.exports = [
  js.configs.recommended,
  {
    languageOptions: {
      ecmaVersion: 2022,
      sourceType: 'module',
      globals: {
        ...globals.browser,
        ...globals.node,
        ...globals.es2021,
        ...globals.webextensions
      }
    },
    rules: {
      'indent': ['error', 2],
      'linebreak-style': ['error', 'unix'],
      'quotes': ['error', 'single', { 'avoidEscape': true }],
      'semi': ['error', 'always'],
      'no-unused-vars': ['warn', { 'argsIgnorePattern': '^_' }],
      'no-console': 'off',
      'prefer-const': 'error',
      'no-var': 'error',
      'eqeqeq': ['error', 'always'],
      'curly': ['error', 'all'],
      'brace-style': ['error', '1tbs'],
      'comma-dangle': ['error', 'never'],
      'space-before-function-paren': ['error', {
        'anonymous': 'always',
        'named': 'never',
        'asyncArrow': 'always'
      }],
      'arrow-spacing': 'error',
      'no-trailing-spaces': 'error',
      'space-in-parens': ['error', 'never'],
      'object-curly-spacing': ['error', 'always'],
      'array-bracket-spacing': ['error', 'never']
    }
  }
];