What are the best practices for using React.lazy?

What are the best practices for using React.lazy?

Using React.lazy allows you to load components lazily, improving performance. Best practices include wrapping it with Suspense, handling loading states, and ensuring proper error boundaries.

Can you give an example of how to implement it?

Sure! Here's a simple example:

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

function App() {
  return (
    <React.Suspense fallback={<div>Loading...</div>}>
      <LazyComponent />
    </React.Suspense>
  );
}

What should I do if the lazy-loaded component fails to load?

You should implement an error boundary. This allows you to catch errors in the lazy-loaded component and display a fallback UI.

Are there any performance considerations I should be aware of?

Yes, avoid overusing lazy loading for small components, as it can lead to unnecessary overhead. Use it strategically for larger components or routes.