kitchn/recipes/src/index.js

import React from 'react';
import { render } from 'react-dom';
import App from './App';
import * as serviceWorker from './serviceWorker';

render(
  <App></App>,
  document.getElementById('root')
)

// If you want your app to work offline and load faster, you can change
// unregister() to register() below. Note this comes with some pitfalls.
// Learn more about service workers: https://bit.ly/CRA-PWA
serviceWorker.unregister();