vue中nextTick和$nextTick

Posted 2020-10-26 web前端

* `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。

this.nextTick(function(){
     alert(‘数据已经更新‘)
});
this.$nextTick(function(){
     alert(‘v-for渲染已经完成‘)
})