vue 监听 路由 meta的变化

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1.配置路由

{

path: '/hellow',

name:"hellow",

component: hellow,

meta:{title:"hellow"}

}

2，在mount里面赋值

mounted(){

this.title=this.$route.matched;

},

3，由于在页面上刷新才可以显示，所一需要watch监听

watch: {

'$route.matched': function (newVal, oldVal) {

this.title=this.$route.matched;

}

},

3.0的监听watch(()=>root.$route,(to,from)=>{

state.title=to.matched;

})

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