import React from "react";import {BrowserRouter as Router, Switch, Route, Link} from "react-router-dom";export default function BasicExample() {
  return (
    <Router>
      <div>
        <ul>
          <li><Link to="/">Home</Link></li>
          <li><Link to="/about">About</Link></li>
          <li><Link to="/dashboard">Dashboard</Link></li>
        </ul><hr />
        <Switch>
          <Route exact path="/"><Home /></Route>
          <Route path="/about"><About /></Route>
          <Route path="/dashboard"><Dashboard /></Route>
        </Switch>
      </div>
    </Router>
  );}function Home() {return (<div><h2>Home</h2></div>);}function About() {return (<div><h2>About</h2></div>);}function Dashboard() {return (<div><h2>Dashboard</h2></div>);}