错误类型错误：

val.slice is not a function

dataTable配置

@H_403_19@$.p-dataTable #dt [value]="customers" [(selection)]="chkBoxSelect" dataKey="customerId" [rows]="10" [paginator]="true" paginatorPosition="both" [pageLinks]="5" [rowsPerPageOptions]="[5,10,20]" [globalFilter]="gb" [headerCheckBoxToggleAllPages]="false" [editable]="true" exportFilename="customers" [lazy]="true" [totalRecords]="totalRecords" onLazyLoad)="loadCustomersByPage($event)"

回电功能

@H_403_19@$loadCustomersByPage(event: LazyLoadEvent) { const parameters = "?page=" + event.first + "&size=" + (event.first + event.rows); this._cs.findAllActiveCustomerDetailsByPage(parameters).subscribe( (data: any) => { this.customers = data; },(error) => { console.log("--error--" + error) } ); }