How To Display A Loading Animation While A Lazy Loaded Route Component Is Being Loaded

Have you ever visited a website where the content took a bit longer to load, leaving you staring at a blank screen and wondering if the site was broken? It's not a great user experience, right? But worry not, because today we're going to talk about how you can spruce up your web application by adding a loading animation while a lazy-loaded route component is being loaded. Let's dive in!

Lazy loading is a nifty technique in web development that allows you to load certain parts of your application only when they are needed. This can help improve the initial loading time of your website, as resources are fetched on-demand rather than all at once. However, this asynchronous loading can sometimes leave your users in the dark, not knowing if something is happening behind the scenes. That's where a loading animation comes into play.

To implement a loading animation while a lazy-loaded route component is being fetched, you'll first need to create the loading animation itself. This can be as simple as a spinning icon or a progress bar – whatever suits the aesthetics of your website. Once you have your loading animation ready, here's how you can display it while the component is loading:

Javascript

// In your route component file
const LazyLoadedComponent = React.lazy(() =&gt; import('./LazyLoadedComponent'));

const Loading = () =&gt; <div>Loading...</div>;

const App = () =&gt; (
  
    &lt;Suspense fallback={}&gt;
      
        
      
    
  
);

In the code snippet above, we define a lazy-loaded component using React's `React.lazy()` function. We then create a `Loading` component that will render our loading animation. Inside the `App` component, we wrap our `Switch` component with a `Suspense` component. The `Suspense` component takes a `fallback` prop, which is what will be displayed while the lazy-loaded component is being loaded.

By setting the `Loading` component as the `fallback`, your users will see the loading animation whenever they navigate to the route that loads the lazy component. Once the lazy component has finished loading, it will replace the loading animation seamlessly.

And there you have it! With just a few lines of code, you can enhance the user experience of your web application by providing visual feedback during the loading process. Your users will appreciate the extra touch, and you'll have a more polished and professional-looking website.

So go ahead, give it a try in your next project, and make the waiting time more bearable for your users. Happy coding!

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