.eslintrc.js

module.exports = {
  root: true,
  env: {
    node: true,
    mocha: true
  },
  extends: [
    'plugin:vue/essential',
    '@vue/standard'
  ],
  rules: {
    'no-console': process.env.NODE_ENV === 'production' ? 'error' : 'off',
    'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off',
    'semi': ['error', 'always'],
    'quotes': ['error', 'single', { 'avoidEscape': true, 'allowTemplateLiterals': true }],
    'no-unused-expressions': 'off'
  },
  parserOptions: {
    parser: 'babel-eslint',
    ecmaFeatures: {
      legacyDecorators: true
    }
  }
};