defineAsyncComponent
时间: 2024-04-06 08:06:12 浏览: 15
`defineAsyncComponent` is a function that allows you to define a component in a way that it is loaded asynchronously, only when it is needed. This is particularly useful for large or complex components that may take some time to load.
With `defineAsyncComponent`, you can dynamically import the component's definition and render it when it is ready. This helps to improve the initial loading time of your application by splitting it into smaller chunks that are loaded on-demand.
Here's an example of how you can use `defineAsyncComponent` in Vue.js:
```javascript
import { defineAsyncComponent } from 'vue';
const MyAsyncComponent = defineAsyncComponent(() =>
import('./MyAsyncComponent.vue')
);
// In your component's template
<template>
<div>
<MyAsyncComponent />
</div>
</template>
```
In this example, `MyAsyncComponent` is defined as an asynchronously loaded component. The `import` statement inside `defineAsyncComponent` dynamically imports the component's definition from the specified file path.
When the component is used in the template, it will be loaded only when it is actually rendered on the page, reducing the initial loading time of your application.