javascript / expert
Snippet
Strategic Lazy Loading with defineAsyncComponent
Expert-level bundle optimization involves splitting components into chunks with granular control over loading states and timeouts. The 'suspensible' flag allows the async component to integrate with parent Suspense boundaries for coordinated async orchestration.
snippet.js
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import { defineAsyncComponent, h } from 'vue';const HeavyComponent = defineAsyncComponent({loader: () => import('./ComplexChart.vue'),loadingComponent: { render: () => h('div', 'Loading...') },errorComponent: { render: () => h('div', 'Error loading component') },delay: 200,timeout: 5000,suspensible: true});
vue
Breakdown
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loader: () => import(...)
A function that returns a Promise for the dynamic import of the component.
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suspensible: true
Indicates that the component should bubble its async state to the nearest Suspense ancestor.