SYMBOL INDEX (11 symbols across 3 files)

FILE: client/src/components/App.js
  class App (line 7) | class App extends Component {
    method constructor (line 8) | constructor() {
    method componentDidMount (line 14) | componentDidMount() {
    method render (line 41) | render() {

FILE: client/src/registerServiceWorker.js
  function register (line 21) | function register() {
  function registerValidSW (line 46) | function registerValidSW(swUrl) {
  function checkValidServiceWorker (line 75) | function checkValidServiceWorker(swUrl) {
  function unregister (line 102) | function unregister() {

FILE: server/src/index.js
  constant PORT (line 7) | const PORT = process.env.PORT || 8080;
  constant HOST (line 8) | const HOST = '0.0.0.0';
  constant CLIENT_BUILD_PATH (line 10) | const CLIENT_BUILD_PATH = path.join(__dirname, '../../client/build');