router.js
routes: [{ path: ‘/‘, name: ‘HelloWorld‘, component: HelloWorld, meta: { title: "HelloWorld", 要现实的title show: true 设置导航隐藏显示 } }]
App.vue
<template> <div id="app"> <router-view></router-view> <bottom v-show="this.$route.meta.show"></bottom> this.$route.meta.show 显示或隐藏
</div> </template>
main.js
router.beforeEach((to, from, next) => {
if (to.meta.title) {
document.title = to.meta.title
}
next()
})
监听路由 写入 title