React route: NavBar always on top while navigating around the components-CodePudding

I'm an absolute biginner with React and I'm experiencing a really (hopefully) simple problem with routes in React (v6). I have:

1 NavBar
2 components

I would like to access the two components through the "NavBar menu" using React routes 6 but I'm not able to fix the NavBar at the top. It disappears as soon as I navigate to the component.

I will explain it using an image:

This is my configuration:

function App() {
  return (
    <Router>
      <div className="App">
        <Routes>
          <Route path="/" element={<NavBar />} />
          <Route exact path="/componenta" element={<ComponentA />} />
          <Route exact path="/componentb" element={<ComponentB />} />
        </Routes>
      </div>
    </Router>
  );
}

And if you want here you can find the related CodeSandbox: https://codesandbox.io/s/pensive-river-5n6go?file=/src/App.js

How can I properly configure the routes (v6) to get it work correctly? Thanks for your help.

CodePudding user response：

If you want to render a navbar regardless of route then render it outside the Routes component.

function App() {
  return (
    <Router>
      <div className="App">
        <NavBar />
        <Routes>
          <Route path="/componenta" element={<ComponentA />} />
          <Route path="/componentb" element={<ComponentB />} />
        </Routes>
      </div>
    </Router>
  );
}

If you want to conditionally render the navbar only with specific routes then render it as a layout component that also renders an Outlet for nested Route components.

function App() {
  return (
    <Router>
      <div className="App">
        <Routes>
          <Route
            element={(
              <>
                <NavBar />
                <Outlet />
              </>
            )}
          >
            <Route path="/componenta" element={<ComponentA />} />
            <Route path="/componentb" element={<ComponentB />} />
          </Route>
          ... other routes without navbar
        </Routes>
      </div>
    </Router>
  );
}

CodePudding user response：

Pull NavBar outside of Routes:

<NavBar />
<Routes>
   <Route exact path="/componenta" element={<ComponentA />} />
   <Route exact path="/componentb" element={<ComponentB />} />
</Routes>

Then it should render at the top of the app div, and route changes will render the selected component beneath it.