Vue 组件销毁并重置的两种实现方式

<template>
  <third-comp v-if="reFresh"/>
</template>
 
<script>
  export default{
    data(){
     return {
        reFresh:true,
        menuTree:[]
      }
    },
    watch:{
       menuTree(){
 
         this.reFresh= false
         this.$nextTick(()=>{
          
          this.reFresh = true
        })
      }
    }
}
</script>

<template>
 <third-comp :key="menuKey"/>
</template>

<script>
 export default{
   data(){
     return {
        menuKey:1
      }
   },
   watch:{
      menuTree(){

        ++this.menuKey
      }
   }
}
</script>