react lazy suspense code example

Example 1: suspense react

import React, {Suspense} from 'react;
const ProfilePage = React.lazy(() => import('./ProfilePage')); // Lazy-loaded

// Show a spinner while the profile [data fetching] is loading
<Suspense fallback={<Spinner />}>
  <ProfilePage />
</Suspense>

Example 2: lazy react

import React, { Suspense } from 'react';

const OtherComponent = React.lazy(() => import('./OtherComponent'));

function MyComponent() {
  return (
    <div>
      <Suspense fallback={<div>Loading...</div>}>
        <OtherComponent />
      </Suspense>
    </div>
  );
}

Example 3: react suspense chunck

import { BrowserRouter as Router, Route, Switch } from 'react-router-dom';
import React, { Suspense, lazy } from 'react';

const Home = lazy(() => import('./routes/Home'));
const About = lazy(() => import('./routes/About'));

const App = () => (
  <Router>
    <Suspense fallback={<div>Chargement...</div>}>
      <Switch>
        <Route exact path="/" component={Home}/>
        <Route path="/about" component={About}/>
      </Switch>
    </Suspense>
  </Router>
);