.eslintrc.js

module.exports = {
  root: true,

  parserOptions: {
    parser: '@babel/eslint-parser',
    ecmaVersion: 2018,
    sourceType: 'module',
    requireConfigFile: false
  },

  env: {
    browser: true
  },

  // Rules order is important, please avoid shuffling them
  extends: [
    'eslint:recommended',
    'plugin:vue/vue3-essential', // Priority A: Essential (Error Prevention)
    'plugin:vue/vue3-strongly-recommended', // Priority B: Strongly Recommended (Improving Readability)
    'plugin:vue/vue3-recommended', // Priority C: Recommended (Minimizing Arbitrary Choices and Cognitive Overhead)
    'prettier'
  ],

  plugins: ['vue'],

  globals: {
    cordova: 'readonly',
    __statics: 'readonly',
    __QUASAR_SSR__: 'readonly',
    __QUASAR_SSR_SERVER__: 'readonly',
    __QUASAR_SSR_CLIENT__: 'readonly',
    __QUASAR_SSR_PWA__: 'readonly',
    process: 'readonly',
    Capacitor: 'readonly',
    chrome: 'readonly'
  },

  rules: {
    // allow debugger during development only
    'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off',

    // custom
    'vue/no-v-html': 0,

    'accessor-pairs': 2,
    'arrow-spacing': [2, {before: true, after: true}],
    'block-spacing': [2, 'always'],
    'brace-style': [2, '1tbs', {allowSingleLine: true}],
    'comma-dangle': 0,
    'comma-spacing': [2, {before: false, after: true}],
    'comma-style': [2, 'last'],
    'constructor-super': 2,
    curly: [0, 'multi-line'],
    'dot-location': [2, 'property'],
    'eol-last': 2,
    eqeqeq: [2, 'allow-null'],
    'generator-star-spacing': [2, {before: true, after: true}],
    'handle-callback-err': [2, '^(err|error)$'],
    indent: 0,
    'jsx-quotes': [2, 'prefer-double'],
    'key-spacing': [2, {beforeColon: false, afterColon: true}],
    'keyword-spacing': [2, {before: true, after: true}],
    'new-cap': 0,
    'new-parens': 0,
    'no-array-constructor': 2,
    'no-caller': 2,
    'no-class-assign': 2,
    'no-cond-assign': 2,
    'no-const-assign': 2,
    'no-control-regex': 0,
    'no-debugger': 0,
    'no-delete-var': 2,
    'no-dupe-args': 2,
    'no-dupe-class-members': 2,
    'no-dupe-keys': 2,
    'no-duplicate-case': 2,
    'no-empty-character-class': 2,
    'no-empty-pattern': 2,
    'no-eval': 0,
    'no-ex-assign': 2,
    'no-extend-native': 2,
    'no-extra-bind': 2,
    'no-extra-boolean-cast': 2,
    'no-extra-parens': [2, 'functions'],
    'no-fallthrough': 2,
    'no-floating-decimal': 2,
    'no-func-assign': 2,
    'no-implied-eval': 2,
    'no-inner-declarations': [0, 'functions'],
    'no-invalid-regexp': 2,
    'no-irregular-whitespace': 2,
    'no-iterator': 2,
    'no-label-var': 2,
    'no-labels': [2, {allowLoop: false, allowSwitch: false}],
    'no-lone-blocks': 2,
    'no-mixed-spaces-and-tabs': 2,
    'no-multi-spaces': 2,
    'no-multi-str': 2,
    'no-multiple-empty-lines': [2, {max: 2}],
    'no-native-reassign': 2,
    'no-negated-in-lhs': 2,
    'no-new': 0,
    'no-new-func': 2,
    'no-new-object': 2,
    'no-new-require': 2,
    'no-new-symbol': 2,
    'no-new-wrappers': 2,
    'no-obj-calls': 2,
    'no-octal': 2,
    'no-octal-escape': 2,
    'no-path-concat': 0,
    'no-proto': 2,
    'no-redeclare': 2,
    'no-regex-spaces': 2,
    'no-return-assign': 0,
    'no-self-assign': 2,
    'no-self-compare': 2,
    'no-sequences': 2,
    'no-shadow-restricted-names': 2,
    'no-spaced-func': 2,
    'no-sparse-arrays': 2,
    'no-this-before-super': 2,
    'no-throw-literal': 2,
    'no-trailing-spaces': 2,
    'no-undef': 2,
    'no-undef-init': 2,
    'no-unexpected-multiline': 2,
    'no-unneeded-ternary': [2, {defaultAssignment: false}],
    'no-unreachable': 2,
    'no-unused-vars': [
      2,
      {vars: 'local', args: 'none', varsIgnorePattern: '^_'}
    ],
    'no-useless-call': 2,
    'no-useless-constructor': 2,
    'no-with': 2,
    'one-var': [0, {initialized: 'never'}],
    'operator-linebreak': [
      2,
      'after',
      {overrides: {'?': 'before', ':': 'before'}}
    ],
    'padded-blocks': [2, 'never'],
    quotes: [2, 'single', {avoidEscape: true, allowTemplateLiterals: true}],
    semi: [2, 'never'],
    'semi-spacing': [2, {before: false, after: true}],
    'space-before-blocks': [2, 'always'],
    'space-before-function-paren': 0,
    'space-in-parens': [2, 'never'],
    'space-infix-ops': 2,
    'space-unary-ops': [2, {words: true, nonwords: false}],
    'spaced-comment': 0,
    'template-curly-spacing': [2, 'never'],
    'use-isnan': 2,
    'valid-typeof': 2,
    'wrap-iife': [2, 'any'],
    'yield-star-spacing': [2, 'both'],
    yoda: [0]
  }
}