vue 路由meta 设置title 导航隐藏

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()
})<br><br>监听路由 写入 title