Javascript 我想给ngx newsticker事件数组附加一个工具提示；对于每一项；

我有一个新闻栏，我使用了ngx newsticker，我需要为新闻栏中的每个项目附加一个工具提示。但是，插件采用如下所示的字符串数组

我尝试循环抛出数组，但无效：

    <div class="M_announcementDiv" *ngIf="announcementsArrInTicker && announcementsArrInTicker.length>0">
  <div class="container">
    <div placement="bottom" [ngbTooltip]="announcementsArrInTicker">
      <ngx-newsticker title="{{'ANNOUNCEMENTS'|translate}}" [events]="announcementsArrInTicker"  [interval]="interval"></ngx-newsticker>
    </div>
  </div>
</div>

<div placement="bottom" [ngbTooltip]="announcementsArrInTicker">

getGeneralAnnouncements() {
// this.isAuthenticated = this.authService.isAuthenticated();
this.isAuthenticated =false;

this.newsService.searchGeneralAnnouncements(this.searchModel, this.isAuthenticated).subscribe(res => {
this.announcementArr = res;
  res.announcements.map((announcement) => {
    if(this.translate.currentLang=="ar"){
      this.announcementsArrInTicker.push(announcement.bodyAr);

    }else{
      this.announcementsArrInTicker.push(announcement.bodyEn);

    }
  });
}, error => {
  // this.businessException = errorsUtility.getBusinessException(error);   //this.notificationService.showNotification(this.businessException.message, 
 NotificationType.Error);
})
}