NG ZOORO下拉框添加hover提示toolTip功能

NG ZOORO中实现select option内容过长显示不全需要hover时提示全部信息时可用以下方法实现

 <nz-select class="search-select skin2" style="padding:0;"
            [(ngModel)]="listOfSelectedValue"
            (ngModelChange)="alarmTypeSearch()">
     <nz-option nzCustomContent *ngFor="let option of listOfOption" 
                [nzLabel]="option.label | translate"
                [nzValue]="option.value">
     <span nz-tooltip nzTitle="{{option.label | translate}}">{{option.label | translate}}</span>
     </nz-option>
</nz-select>

参考链接：https://stackblitz.com/edit/angular-sznujt-upxc4v?file=src%2Fapp%2Fapp.component.ts