vue moment.js及实时更新当前时间

 1 <div>{{nowtime | updatetime}}</div>
 2 <script>
 3     export default{
 4         data(){
 5             return{
 6                 nowtime:new Date()
 7             }
 8         },
 9         filters:{
10             updatetime:function(value){
11                 return moment(value).format(‘LTS‘);
12             }
13         }
14     }
15 </script>    

 1 mounted(){//生命周期模板挂载之后
 2     let _this=this;
 3     this.timer=setInterval(()=>{
 4         _this.nowtime=new Date();
 5     },1000)
 6 },
 7 beforeDestroy(){//生命周期实例销毁之前
 8     if(this.timer){
 9         clearInterval(this.timer);
10     }
11 }