vue级联组件改造-根据勾选内容得顺序返回结果

<el-cascader :options="options" @change="cascaderChange($event)" ref="cascader"
                   collapse-tags
                   :props="{ multiple: true ,value:'label'}"
                   clearable></el-cascader>



 cascaderChange(val) {
      let auditPerson = {};
      auditPerson=this.getCascader(val,this.$refs.cascader.getCheckedNodes());
      debugger
      this.auditPersonIdsName = auditPerson.auditPersonIdsName;	//回显的数据
    },
    getCascader(val, AAA,type) {
      let auditPerson = {
        auditPersonIds: [],
        auditPersonIdsName: [],
      };

      if(this.tempData.length >= 0 && this.tempData.length <= val.length) {
        val.forEach((item)=> {
          if(this.tempData.indexOf(item) == -1) {
            this.tempData.push(item)
          }
        })
      }else if(val.length < this.tempData.length