vue3.0+vite2實現動態異步組件懶加載
性能決定成敗;vite確實快;cmd 命令行(默認你已經安裝了node & npm),執行npm init @vitejs/app vue-study ? --template vue;cd至vue-study,npm install(安裝依賴); npm run dev(啟動項目);
創建組件新建一個目錄為pages,pages下面再新建一個目錄contents,contens下面可以新建具體的組件目錄頁面,此時目錄結構為
App.vue
<template> <p @click='onChangeContents(’./pages/contents/gp/gp.vue’)'>郭培</p> <p @click='onChangeContents(’./pages/contents/systemManges/xtcs.vue’)'>系統參數</p> <p>{{currentTabComponent}}</p> <!-- <Suspense> --> <component :is='DefineAsyncComponent({ // 工廠函數 loader: Modeuls[currentTabComponent], // // 默認值:Infinity(即永不超時,單位 ms) timeout: 3000, })'></component> <!-- </Suspense> --></template><script lang='ts'> import { defineComponent, defineAsyncComponent, reactive, ref } from ’vue’ export default defineComponent({ name: ’App’, setup() { //vite加載指定路徑的所有模塊 const Modeuls = import.meta.glob(’./pages/contents/*/*’); const onChangeContents = function(URL) { currentTabComponent.value = URL; console.log(currentTabComponent) } let currentTabComponent = ref(’./pages/contents/systemManges/xtcs.vue’); const DefineAsyncComponent = defineAsyncComponent; return { DefineAsyncComponent, currentTabComponent, onChangeContents, Modeuls } }, })</script>
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