第二个子组件是async-child.vue,在父组件中我们没有像普通组件local-child.vue那样在最上面import导入,而是在defineAsyncComponent接收的回调函数中去动态import导入async-child.vue文件,这样定义的AsyncChild组件就是异步组件。 在template中可以看到,只有当点击load async child按钮后才会加载异步组件AsyncChild。 我们先...
};returndefineComponent({name:"AsyncComponentWrapper",setup() {constinstance = currentInstance;constloaded =ref(false);consterror =ref();constdelayed =ref(!!delay);if(delay) {setTimeout(() =>{ delayed.value=false; }, delay); }load() .then(() =>{ loaded.value=true; }) .catch((err...
第二个子组件是async-child.vue,在父组件中我们没有像普通组件local-child.vue那样在最上面import导入,而是在defineAsyncComponent接收的回调函数中去动态import导入async-child.vue文件,这样定义的AsyncChild组件就是异步组件。 在template中可以看到,只有当点击load async child按钮后才会加载异步组件AsyncChild。 当我们...
用来存储异步加载的组件letInnerComp=null// 返回一个包装组件return{name:'AsyncComponentWrapper',setup() {// 异步组件是否加载成功constloaded =ref(false)// 执行加载器函数,返回一个 Promise 实例// 加载成功后,将加载成功的组件赋值给 InnerComp,并将 loaded 标记...
我们来看看defineAsyncComponent的返回值,是一个defineComponent定义的组件,代码如下: 代码语言:javascript 复制 functiondefineAsyncComponent(source){// ...省略returndefineComponent({name:"AsyncComponentWrapper",setup(){constinstance=currentInstance;constloaded=ref(false);const...
returndefineComponent({name:'AsyncComponentWrapper',__asyncLoader:load,get__asyncResolved(){returnresolvedComp},setup(){constinstance=currentInstance!// already resolvedif(resolvedComp){return()=>createInnerComp(resolvedComp!,instance)}// 加载失败回调函数constonError=(err:Error)=>{pendingRequest=null...
{loader,loadingComponent,errorComponent,delay=200,timeout,// undefined = never times outsuspensible=true,onError:userOnError}=source// ...returndefineComponent({name:'AsyncComponentWrapper',__asyncLoader:load,get__asyncResolved() {returnresolvedComp},setup() {constinstance=currentInstance...
defineAsyncComponent API 在Vue2中也有异步组件,只不过是使用ES2015 import异步加载模块,并返回一个pormise实现异步加载的效果: // 👉第一种方式:全局注册 Vue.component('async-webpack-example',function(resolve){ // 这个特殊的 `require` 语法将会告诉 webpack ...
__asyncLoader: load, // 异步组件统一名字 name: 'AsyncComponentWrapper', // 组件有setup方法的走setup逻辑 setup() { const instance = currentInstance! // already resolved if (resolvedComp) { return () => createInnerComp(resolvedComp!, instance) ...
Struggling to test a async component. I created a suspense wrapper component with defineComponent which i think should work but it doesn't: it("renders a async component with a suspense wrapper", () => { const Component = defineComponent...