.eslintrc.js

module.exports = {
  root: true,
  parserOptions: {
    'parser': 'babel-eslint',
    'ecmaVersion': 2017,
    'sourceType': 'module'
  },
  env: {
    browser: true,
    jest: true
  },
  extends: [
    "eslint:recommended",
    "plugin:vue/recommended",
    "standard"
  ],
  plugins: [
    'vue'
  ],
  rules: {
    'import/extensions': ['error', 'always', {
      'js': 'never',
      'vue': 'never'
    }],
    'import/no-extraneous-dependencies': 0,
    'no-debugger': process.env.NODE_ENV === 'production' ? 2 : 0,
    'import/no-duplicates': 0,
    'import/no-extraneous-dependencies': 0,
    'import/extensions': 0,
    'import/named': 0,
    'import/namespace': 0,
    'import/no-unresolved': 0,
    'import/no-named-as-default': 0,
    'import/prefer-default-export': 0,
    'comma-dangle': 0,
    'indent': [2, 2, {'SwitchCase': 1}],    
    'no-console': 0,
    'no-alert': 0,
    'semi': ['error', 'never'],
    'no-var': 2,
    'space-before-blocks': 2,
    'keyword-spacing': 2,
    'no-global-assign': 0,
    'no-unsafe-negation': 0,
    'linebreak-style': 0,
    'no-use-before-define': 0
  }
}