小编CAK*_*AK2的帖子

我正在使用 Angular (9) 驱动的 Bootstrap (6.1.0) TypeAhead 并定义其搜索函数，如下所示：

search = (text$: Observable<string>) => {
    return text$.pipe(
      debounceTime(200),
      distinctUntilChanged(),
      // switchMap allows returning an observable rather than maps array
      switchMap((searchText) => {
        if (!searchText || searchText.trim().length == 0) {
          // when the user erases the searchText
          this.dealerRepUserID = 0;
          this.dealerRepChanging.emit(this.dealerRepUserID);
          return EMPTY;
        }
        else if (this.dealerID == this.hostOrganizationID) {
          // get a list of host reps
          return this.myService.getHostRepsAutoComplete(searchText, this.includeInactive);
        } else {
          // get a list of dealer reps
          return this.myService.getDealerReps(this.dealerID, …