What are the lazy loading methods of Vue?

Vue implements lazy loading methods including Vue Router lazy loading, Vue asynchronous components, and Vue’s v-lazy instruction. Detailed introduction: 1. Vue Router lazy loading: Vue Router allows components to be loaded on demand to reduce the initial loading time. Lazy loading can be achieved through Webpack's import syntax; 2. Vue asynchronous components: Vue provides asynchronous components. To implement lazy loading, you can use the Vue.component method to define asynchronous components and so on.

Operating system for this tutorial: Windows 10 system, Dell G3 computer.

In Vue, you can use the following methods to implement lazy loading:

• Vue Router lazy loading: Vue Router allows you to load components on demand to reduce initial loading time . You can implement lazy loading through Webpack's import syntax, for example:

const Foo = () => import('./Foo.vue')

In this way, the corresponding component will be loaded only when the route is accessed.

Vue asynchronous components: Vue provides asynchronous components to implement lazy loading. You can use the Vue.component method to define an asynchronous component, for example:

Vue.component('my-component', (resolve) => {  require(['./MyComponent.vue'], resolve)
})

In this way, the component will not be loaded in advance before it is used.

Vue’s v-lazy instruction: Vue provides the v-lazy instruction to implement lazy loading of images. You can bind the src attribute of the image to a calculated attribute to determine whether to load the image based on the scroll position, for example:

<img v-lazy="imageSrc">

computed: {  imageSrc() {    // 根据滚动位置和其他逻辑来决定图片的src
    return 'lazy-image.jpg'
  }
}

In this way, the image will be loaded when the image enters the visible area.

The above are commonly used lazy loading methods in Vue. You can choose the appropriate method to implement the lazy loading function according to your own needs.

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