my eslint config

.eslint.js

// package.json
// "devDependencies": {
//   "eslint": "^8.2.0",
//   "eslint-config-airbnb-base": "^14.2.1",
//   "eslint-config-prettier": "^8.3.0",
//   "eslint-plugin-import": "^2.25.2",
//   "eslint-plugin-prettier": "^4.0.0",
//   "eslint-plugin-svelte3": "^4.0.0",
//   "prettier": "^2.4.1"
// }

// .prettierrc
// {
//     "singleQuote": true,
//     "arrowParens": "always",
//     "tabWidth": 2,
//     "printWidth": 120,
//     "trailingComma": "es5",
//     "semi": true
// }

module.exports = {
  root: true,
  env: {
    browser: true,
    node: true,
    es2020: true,
    jest: true,
  },
  extends: ['eslint:recommended', 'airbnb-base', 'prettier'],
  plugins: ['prettier', 'svelte3'],
  overrides: [
    {
      files: ['**/*.svelte'],
      processor: 'svelte3/svelte3',
      rules: {
        'import/prefer-default-export': 'off',
        'import/first': 'off',
        'import/no-mutable-exports': 'off',
        'prettier/prettier': 'off',
      },
    },
  ],
  globals: {},
  parserOptions: {
    ecmaVersion: 2022,
    sourceType: 'module',
  },
  // parser: 'babel-eslint',
  rules: {
    'no-await-in-loop': 'off',
    'dot-notation': 'off',
    'no-console': 'off',
    'no-continue': 'off',
    'linebreak-style': 'off',
    'prettier/prettier': [
      'error',
      {
        endOfLine: 'auto',
        trailingComma: 'es5',
      },
    ],
    'no-underscore-dangle': 'off',
    'default-case': 'off',
    'import/prefer-default-export': 'off',
    'import/extensions': ['error', 'always', { ignorePackages: true }],

    'max-len': [
      1,
      {
        code: 120,
        ignoreUrls: true,
        ignoreStrings: true,
        ignoreTemplateLiterals: true,
        ignoreComments: true,
        ignoreRegExpLiterals: true,
      },
    ],
    'no-bitwise': ['error', { int32Hint: true }],
    'operator-assignment': ['error', 'always'],
    'no-plusplus': ['error', { allowForLoopAfterthoughts: true }],
    'no-restricted-syntax': ['off', 'ForOfStatement'],
    'arrow-parens': ['error', 'always'],
    'no-global-assign': ['error', { exceptions: ['Object'] }],
    'no-extend-native': ['error', { exceptions: ['Object'] }],
    'no-redeclare': ['error', { builtinGlobals: true }],
    'block-scoped-var': ['error'],
    // 'dot-notation': ['error', { allowPattern: '^.*[^a-zA-Z0-9]+.*$' }],
    'class-methods-use-this': 'warn',
    'no-unused-vars': ['error', { args: 'none' }],
    'no-use-before-define': ['error', { classes: false }],
    camelcase: ['error', { properties: 'never', ignoreDestructuring: true }],

    'max-lines': ['error', { max: 200, skipBlankLines: true }],
    'max-lines-per-function': ['error', { max: 70, skipBlankLines: true }],
    'max-depth': ['error', 3],
    'max-statements': ['error', 30, { ignoreTopLevelFunctions: true }],
    complexity: ['error', { max: 9 }],
    'max-nested-callbacks': ['error', 3],
  },
};