async-component-final.js

const MyAwesomeComponent = asyncComponent(() => import('./components/MyAwesomeComponent'));

// some code

render() {
  const { ConditionalRender } = this.state;
  return (
    <div className="App">
      <header className="App-header">
        <img src={logo} className="App-logo" alt="logo" />
        <h1 className="App-title">Welcome to React</h1>
      </header>
      {ConditionalRender &&
        <MyAwesomeComponent />
      }
    </div>
  );
}