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Vue.js

Async Components in Vue.js

Load Vue components on demand with dynamic imports, loading states, and error handling.

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  • Definition: Async components in Vue.js allow loading components on-demand, improving performance.
  • Syntax: Define using defineAsyncComponent(() => import('Component.vue')).
  • Lazy Loading: Loads component only when needed, reducing initial bundle size.
  • Dynamic Import: Uses JavaScript’s dynamic import() for asynchronous loading.
  • Loading State: Supports loadingComponent to display a placeholder while loading.
  • Error Handling: Uses errorComponent to show fallback UI if loading fails.
  • Timeout: Configurable timeout to handle slow network conditions.
  • Suspense Integration: Works with <Suspense> for better async handling in Vue 3.
  • Use Case: Ideal for large apps to load non-critical components on demand.

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