SYMBOL INDEX (9 symbols across 2 files)

FILE: client/src/App.js
  class App (line 5) | class App extends Component {
    method constructor (line 6) | constructor(props) {
    method callAPI (line 11) | callAPI() {
    method componentDidMount (line 18) | componentDidMount() {
    method render (line 22) | render() {

FILE: client/src/registerServiceWorker.js
  function register (line 21) | function register() {
  function registerValidSW (line 55) | function registerValidSW(swUrl) {
  function checkValidServiceWorker (line 84) | function checkValidServiceWorker(swUrl) {
  function unregister (line 111) | function unregister() {