.eslintrc.js

module.exports = {
  // Use only this configuration
  root: true,
  // File parser
  parser: 'vue-eslint-parser',
  parserOptions: {
    // Use babel-eslint for JavaScript
    parser: 'babel-eslint',
    ecmaVersion: 2017,
    // With import/export syntax
    sourceType: 'module',
  },
  // Environment global objects
  env: {
    browser: true,
    es6: true,
    jest: true,
  },
  extends: [
    // https://github.com/feross/standard/blob/master/RULES.md#javascript-standard-style
    'standard',
    // https://github.com/vuejs/eslint-plugin-vue#priority-c-recommended-minimizing-arbitrary-choices-and-cognitive-overhead
    'plugin:vue/recommended',
  ],
  rules: {
    'comma-dangle': ['error', 'always-multiline'],

    // Vue

    // Error
    'vue/html-closing-bracket-newline': ['error', {
      singleline: 'never',
      multiline: 'always',
    }],
    'vue/html-closing-bracket-spacing': ['error', {
      startTag: 'never',
      endTag: 'never',
      selfClosingTag: 'never',
    }],
    'vue/max-attributes-per-line': ['error', {
      singleline: 2,
      multiline: {
        max: 1,
        allowFirstLine: false,
      },
    }],
    // Warn
    'vue/require-default-prop': 'warn',
    'vue/require-prop-types': 'warn',
  },
}