1import React from 'react';
 2import { Route, Switch } from 'react-router';
 3
 4import Layout from './components/Header';
 5import BugPage from './pages/bug';
 6import ListPage from './pages/list';
 7import NewBugPage from './pages/new/NewBugPage';
 8import NotFoundPage from './pages/notfound/NotFoundPage';
 9
10export default function App() {
11  return (
12    <Layout>
13      <Switch>
14        <Route path="/" exact component={ListPage} />
15        <Route path="/new" exact component={NewBugPage} />
16        <Route path="/404bug" exact component={NotFoundPage} />
17        <Route path="/bug/:id" exact component={BugPage} />
18        <Route component={NotFoundPage} />
19      </Switch>
20    </Layout>
21  );
22}