text: import React from 'react';
  import ReactDOM from 'react-dom';
  import { BrowserRouter as Router, Route, Routes, Link } from 'react-router-dom';
  
  import Home from "./components/Home"
  import About from "./components/About"
  import Topics from "./components/Topics"
  
  import Tracer from './web-tracer.js';
  
  Tracer('example-react-load')
  
  
  ReactDOM.render(
    <Router>
        
        <div>
          <ul>
            <li><Link to="/">Home</Link></li>
            <li><Link to="/about">About</Link></li>
            <li><Link to="/topics">Topics</Link></li>
          </ul>
          <hr />
  
          <Routes>
          <Route exact path="/" element={<Home />} />
          <Route path="/about" element={<About />} />
          <Route path="/topics" element={<Topics />} />
          </Routes>
        </div>
        
      </Router>,
    document.getElementById('root')
  );