.eslintrc.js

module.exports = {
  root: true,
  parser: 'babel-eslint',
  parserOptions: {
    sourceType: 'module'
  },
  env: {
    browser: true,
    node: true,
    'jest/globals': true
  },
  extends: 'standard',
  // required to lint *.vue files
  plugins: ['html', 'jest'],
  // add your custom rules here
  rules: {
    'jest/no-disabled-tests': 'warn',
    'jest/no-focused-tests': 'error',
    'jest/no-identical-title': 'error',
    'jest/prefer-to-have-length': 'warn',
    'jest/valid-expect': 'error',
    // allow paren-less arrow functions
    'arrow-parens': 0,
    // allow async-await
    'generator-star-spacing': 0,
    // allow debugger during development
    'no-debugger': process.env.NODE_ENV === 'production' ? 2 : 0,
    // do not allow console.logs etc...
    // 'no-console': 2,
    semi: 0,
    quotes: ['error', 'single'],
    'space-before-function-paren': [
      2,
      {
        anonymous: 'always',
        named: 'never'
      }
    ],
    trailingComma: 0
  },
  globals: {}
}