import React from "react";
import ReactDOM from 'react-dom';
import { BrowserRouter as Router } from 'react-router-dom';
  const App = () => {
   return (
     <div className="App">
          <h1>React Router App </h1>
     </div>
   );
  };
  export default App;
 
ReactDOM.render( 
   <Router>
      <App/>
   </Router>, 
document.getElementById("root"));