rewrite 2fsrc 2fapp js

1import React, { Component } from "react";
2
3class App extends Component {
4  render() {
5    return <h1>Hi!</h1>;
6  }
7}
8
9export default App;
10

1// frontend/src/App.js
2import React, { Component } from "react";
3import { BrowserRouter, Route, Switch } from "react-router-dom";
4import Home from "./components/Home";
5
6class App extends Component {
7  render() {
8    return (
9      <div>
10        <BrowserRouter>
11          <Switch>
12            <Route exact path="/" component={Home} />
13          </Switch>
14        </BrowserRouter>
15      </div>
16    );
17  }
18}
19
20export default App;
21