constaddCacheComponents= (to: RouteLocationNormalized) => { if(to.meta.keepAlive) { for(letitemofto.matched) { if(!(item.components?.defaultasany).name|| cacheComponents.value.includes((item.components?.defaulta
keepAliveIncludes.value = routes; }); ```html <RouterView v-slot="{ Component }"> <KeepAlive :include="keepAliveIncludes"> <component :is="Component" :key="route.name" /> </KeepAlive> </RouterView> ```在DetailView 页面动态修改 keepAlive,参考 src/views/DetailView.vue```javascript con...
vue3 的 router-view keep-alive写法: <router-viewv-slot="{ Component, route }"><keep-alive:include="includeList"><component:is="Component":key="route.name"v-if="includeList.includes(route.name)"/></keep-alive><component:is="Component":key="route.name"v-if="(!includeList.includes(rou...
keep-alive 是Vue 提供的一个内置组件,主要用于缓存动态组件的状态,以避免在组件切换时重新渲染,从而提升性能和用户体验。在 Vue3 中,keep-alive 的用法与 Vue2 基本一致,但 Vue3 的组合式 API 提供了更多的灵活性。 keep-alive 组件通常与 <router-view> 一起使用,以缓存路由组件。其常用属性包括: ...
keepalive 本身不会渲染出来,也不会出现在dom节点当中,但是它会被渲染为vnode,通过vnode可以跟踪到keepalive中的cache和keys,当然也是在开发环境才可以,build打包以后没有暴露到vnode中(这个还要再确认一下)
KeepAlive是个抽象组件,自身不会渲染一个 DOM 元素,也不会出现在父组件链中,我们用它来缓存组件的状态。KeepAlive只对插入的单个组件起效果,因此一般只给它安排一个组件。适合与component或router-view搭配使用。 一、ts 类型 先来和KeepAlive相关的类型: MatchPattern:匹配模式,是传递的参数include和exclude接收的类...
在Vuejs 中,内置了KeepAlive组件用于缓存组件,可以避免组件的销毁/重建,提高性能。假设页面有一组Tab组件,如下代码所示: <template> <Tab v-if="currentTab === 1">...</Tab> <Tab v-if="currentTab === 2">...</Tab> <Tab v-if="currentTab === 3">...</Tab> ...
:key="route.name"v-if="(!includeList.includes(route.name) && !route.meta.keepAlive)"/> </router-view> 1. ⾸先确保include传的值为官⽅⽂档中的三种形式：2. 确保<component>对应的组件⾥⾯定义了name(语法糖⽆法定义name，需改成⾮语法糖形式，⾃⼰取舍吧)
<template> <router-view v-slot="{ Component, route }"> <keep-alive :include="cachedViews"> <component v-if="route.meta.keepAlive && cachedViews.includes(route.name)" :is="Component" /> </keep-alive> <component v-if="!route.meta.keepAlive || !cachedViews.includes(route.name)" :is=...
meta.keepAlive && to.name) { store.setincludes({ name: to.name }) } next() // 如果没传next 可以不用调用next函数 也能跳转 }) export default router vuex state: () => { return { includes: [], } }, actions: { // 添加需要缓存的组件 setincludes(payload) { this.$state.includes...