What are some examples of using Suspense in Vue 3?

What are some examples of using Suspense in Vue 3?

Vue 3's Suspense allows you to handle async components elegantly. For example, you can use it to show a loading state while waiting for a component to load.

Can you show me a code example?

Sure! Here's a simple example:

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

<script>
import AsyncComponent from './AsyncComponent.vue';
import LoadingSpinner from './LoadingSpinner.vue';

export default {
  components: { AsyncComponent, LoadingSpinner }
};
</script>

What happens if the async component fails to load?

If the async component fails to load, you can handle the error by using the onError lifecycle hook within the Suspense component.

Can you explain how to implement error handling?

Certainly! You can use the defineAsyncComponent function to define your async component and provide an error component as a fallback. Here's an example:

import { defineAsyncComponent } from 'vue';

const AsyncComponent = defineAsyncComponent({
  loader: () => import('./MyComponent.vue'),
  errorComponent: ErrorComponent,
  delay: 200,
  timeout: 3000
});