<ul id="demo">

    <li v-for="item in list">{{item}}</div>
</ul>
 
new Vue({
    el:'#demo',
    data:{
        list=[0,1,2,3,4,5,6,7,8,9,10]
    },
    methods:{
        push:function(){
            this.list.push(11);
            this.nextTick(function(){
                alert('数据已经更新')
            });
            this.$nextTick(function(){
                alert('v-for渲染已经完成')
            })
        }
    }})
* `Vue.nextTick(callback)`,当数据发生变化,更新后执行回调。
* `Vue.$nextTick(callback)`,当dom发生变化,更新后执行的回调。
posted on 2017-11-23 09:13  仔仔爱学习  阅读(5238)  评论(1编辑  收藏  举报