module.exports = {
    root: true,
    env: {
      node: true
    },
    // extends: ['plugin:vue/essential', 'eslint:recommended'],
    extends: ['plugin:vue/essential'],
    rules: {
      'accessor-pairs': 2,
      'arrow-spacing': [
        2,
        {
          before: true,
          after: true
        }
      ],
      'block-spacing': [2, 'always'],
      'brace-style': [
        2,
        '1tbs',
        {
          allowSingleLine: true
        }
      ],
      camelcase: [
        0,
        {
          properties: 'always'
        }
      ],
      'comma-dangle': [2, 'never'],
      'comma-spacing': [
        2,
        {
          before: false,
          after: true
        }
      ],
      'comma-style': [2, 'last'],
      'constructor-super': 2,
      curly: [2, '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: [
        2,
        2,
        {
          SwitchCase: 1
        }
      ],
      'jsx-quotes': [2, 'prefer-single'],
      'key-spacing': [
        2,
        {
          beforeColon: false,
          afterColon: true
        }
      ],
      'keyword-spacing': [
        2,
        {
          before: true,
          after: true
        }
      ],
      'new-cap': [
        2,
        {
          newIsCap: true,
          capIsNew: false
        }
      ],
      'new-parens': 2,
      'no-array-constructor': 2,
      'no-caller': 2,
      'no-console': 'off',
      'no-class-assign': 2,
      'no-cond-assign': 2,
      'no-const-assign': 2,
      'no-control-regex': 2,
      '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': 2,
      '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': [2, '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: 1
        }
      ],
      'no-native-reassign': 2,
      'no-negated-in-lhs': 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': 2,
      'no-proto': 2,
      'no-redeclare': 2,
      'no-regex-spaces': 2,
      'no-return-assign': [2, 'except-parens'],
      '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-unmodified-loop-condition': 2,
      'no-unneeded-ternary': [
        2,
        {
          defaultAssignment: false
        }
      ],
      'no-unreachable': 2,
      'no-unsafe-finally': 2,
      'no-unused-vars': [
        2,
        {
          vars: 'all',
          args: 'none'
        }
      ],
      'no-useless-call': 2,
      'no-useless-computed-key': 2,
      'no-useless-constructor': 2,
      'no-useless-escape': 0,
      'no-whitespace-before-property': 2,
      'no-with': 2,
      'one-var': [
        2,
        {
          initialized: 'never'
        }
      ],
      'operator-linebreak': [
        2,
        'after',
        {
          overrides: {
            '?': 'before',
            ':': 'before'
          }
        }
      ],
      'padded-blocks': [2, 'never'],
      quotes: [
        2,
        'single',
        {
          avoidEscape: true,
          allowTemplateLiterals: true
        }
      ],
      'semi': [2, 'always'], // 语句强制分号结尾
      'space-before-blocks': [2, 'always'],
      'space-before-function-paren': [2, 'never'],
      'space-in-parens': [2, 'never'],
      'space-infix-ops': 2,
      'space-unary-ops': [
        2,
        {
          words: true,
          nonwords: false
        }
      ],
      'spaced-comment': [
        2,
        'always',
        {
          markers: [
            'global',
            'globals',
            'eslint',
            'eslint-disable',
            '*package',
            '!',
            ','
          ]
        }
      ],
      'template-curly-spacing': [2, 'never'],
      'use-isnan': 2,
      'valid-typeof': 2,
      'wrap-iife': [2, 'any'],
      'yield-star-spacing': [2, 'both'],
      yoda: [2, 'never'],
      'prefer-const': 2,
      'no-debugger': process.env.NODE_ENV === 'production' ? 2 : 0,
      'object-curly-spacing': [
        2,
        'always',
        {
          objectsInObjects: false
        }
      ],
      'array-bracket-spacing': [2, 'never']
    },
    parserOptions: {
      parser: 'babel-eslint'
    }
  };