.eslintrc.js

module.exports = {
  root: true,
  env: {
    node: true
  },
  extends: [
    'plugin:vue/essential',
    '@vue/standard'
  ],
  rules: {
    'no-console': process.env.NODE_ENV === 'production' ? ['error', { allow: ['warn', 'error'] }] : 'off',
    'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off',
    'vue/no-v-html': 0,
    'vue/no-parsing-error': ['error', {
      'invalid-first-character-of-tag-name': false
    }],
    'no-underscore-dangle': 0,
    'arrow-body-style': 0,
    'no-plusplus': 0,
    'no-prototype-builtins': 0,
    'no-shadow': 0,
    'linebreak-style': 0,
    'no-param-reassign': ['error', { props: false }],
    'no-useless-return': 2,
    'arrow-parens': 0,
    'max-len': 0,
    'generator-star-spacing': 'off',
    'space-before-function-paren': ['error', 'always'],
    semi: ['error', 'never'],
    'comma-dangle': ['error', 'never'],
    curly: ['error', 'all'],
    eqeqeq: ['error', 'always'],
    'no-empty-function': 'error',
    'no-eq-null': 'error',
    'no-multi-spaces': 'error',
    'no-loop-func': 'error',
    'no-undefined': 0,
    'no-use-before-define': ['error', { functions: true, classes: true }],
    'array-bracket-spacing': ['error', 'never'],
    'array-element-newline': ['error', 'consistent'],
    'block-spacing': 'error',
    'brace-style': ['error', '1tbs'],
    'no-multi-assign': 0,
    'comma-spacing': ['error', { before: false, after: true }],
    'comma-style': ['error', 'last'],
    'computed-property-spacing': ['error', 'never'],
    indent: ['error', 2, {
      SwitchCase: 1, VariableDeclarator: 'first', MemberExpression: 1, ObjectExpression: 1, ImportDeclaration: 1
    }],
    'import/prefer-default-export': 'off',
    'vue/attributes-order': 'error',
    'vue/multiline-html-element-content-newline': 2,
    'vue/html-closing-bracket-spacing': 2,
    'vue/html-closing-bracket-newline': 'error',
    'vue/no-spaces-around-equal-signs-in-attribute': 'error',
    'vue/no-multi-spaces': 'error',
    'vue/no-shared-component-data': 'error',
    'vue/require-valid-default-prop': 'error',
    'vue/require-render-return': 'error',
    'vue/use-v-on-exact': ['error'],
    'vue/v-on-style': 'error',
    'vue/valid-template-root': 2,
    'vue/valid-v-bind': 'error',
    'vue/v-bind-style': 'error',
    'vue/attribute-hyphenation': 'error',
    'vue/html-end-tags': 'error',
    'vue/html-indent': ['error', 2, {
      attribute: 1,
      baseIndent: 1,
      closeBracket: 0,
      alignAttributesVertically: true
    }],
    'vue/html-quotes': 'error',
    'vue/html-self-closing': ['error', {
      html: {
        void: 'never',
        normal: 'always',
        component: 'always'
      },
      svg: 'always',
      math: 'always'
    }],
    'vue/max-attributes-per-line': ['error', {
      singleline: 1,
      multiline: {
        max: 1
      }
    }],
    'vue/mustache-interpolation-spacing': ['error', 'always'],
    'vue/name-property-casing': ['error', 'PascalCase'],
    'vue/no-template-shadow': 'error',
    'vue/require-default-prop': 'error',
    'vue/singleline-html-element-content-newline': ['error', {
      ignoreWhenNoAttributes: true,
      ignoreWhenEmpty: true
    }],
    'vue/no-confusing-v-for-v-if': 'error',
    'vue/this-in-template': ['error', 'never'],
    'import/no-cycle': 'off',
    'import/extensions': ['error', {
      js: 'ignorePackages',
      json: 'ignorePackages',
      vue: 'ignorePackages'
    }],
    'import/no-unresolved': ['error', {
      ignore: ['@/']
    }],
    'import/named': 'off'
  },
  parserOptions: {
    parser: 'babel-eslint'
  }
}