vue笔记

//vue防止冒泡
event.stopPropagation();

//vue 的 :class
http://www.cnblogs.com/cina33blogs/p/6738038.html


//vue的unwatch  DEMO 滚动刷新数据 items为请求后台的数据，页面做的轮询

self.unwatch = self.$watch('items', function (newValue, oldValue) {
    var count = 0;
    if(newValue.length!=oldValue.length){
        count++;
    }
    if(count!=0&&document.getElementById('myData')){
        this.$nextTick(() => {
            var container = this.$el.querySelector("#myData");
            container.scrollTop = container.scrollHeight;
        });
        // document.getElementById('myData').scrollTop = 0;//前面数据刷新
    }
});

//vue的interval

this.handle = setInterval(() => {

},8000);

,beforeDestroy(){
    clearInterval(this.handle);
}