vue 列表 分页 按日期归类

 if (that.pageIdx == 1) {
                this.dataList_0 = newArr;//第一页的数据 直接加进来
              } else {
                //第二页的数据 判断日期是不是一样
                for (let i = 0; i < newArr.length; i++) {
                  const _obj = newArr[i];
                  if (_obj.dateStr == this.dataList_0[this.dataList_0.length - 1].dateStr) {
                    this.dataList_0[this.dataList_0.length - 1].childList = this.dataList_0[
                      this.dataList_0.length - 1
                    ].childList.concat(newArr[0].childList);
                  } else {
                    this.dataList_0.push(newArr[i]); //数组追加
                  }
                }
              }
              //没有数据时候 结束分页
              if (that.dataList_0.length == 0) {
                that.noDataTip = '';
                that.upFinished = true;
                that.noData = true;
                return;
              } else {
                that.noDataTip = '- 显示近30天内的历史任务记录 -';
                that.noData = false;
              }
              if (res.data.result.hasMore == 1) {
                that.upFinished = true;
              }