What are the differences between Vue 3 Suspense and Async Components?

What are the differences between Vue 3 Suspense and Async Components?

Vue 3 Suspense is a feature that allows you to handle asynchronous components more elegantly, providing a loading state while waiting for components to load. Async Components, on the other hand, are a way to define components that are loaded only when needed, but they don't inherently manage loading states.

Can you give me an example of how to use Suspense?

Sure! You can use Suspense like this:

<Suspense>
  <template #default>
    <AsyncComponent />
  </template>
  <template #fallback>
    <LoadingSpinner />
  </template>
</Suspense>

In this example, AsyncComponent will be displayed once it's loaded, and LoadingSpinner will show while it's loading.

What are the benefits of using Suspense over Async Components?

The main benefits of using Suspense include better handling of loading states, the ability to group multiple async components, and improved user experience by showing fallback content while waiting for components to load.

Are there any performance implications when using Suspense?

Using Suspense can improve performance by reducing the number of re-renders and allowing for better control over loading states. However, it's essential to use it judiciously to avoid unnecessary complexity.