.eslintrc.js

module.exports = {
  root: true,
  parser: '@babel/eslint-parser',
  parserOptions: {
    ecmaVersion: 8,
    ecmaFeatures: {
      experimentalObjectRestSpread: true
    },
    sourceType: 'module'
  },
  env: {
    es6: true,
    node: true,
    browser: true,
    jest: true
  },
  extends: ['eslint:recommended'],
  rules: {
    'no-console': process.env.NODE_ENV !== 'production' ? 0 : 2,
    'no-useless-escape': 0,
    'no-empty': 0,
    indent: ['error', 2]
  }
}