<div *ngIf="!isLoading && responseChart"> <label for="year-select">Choose a Year: </label> <select id="year-select" [(ngModel)]="currentYear" (change)="switchYears()" name="classes"> <option [ngValue]="undefined" selected>Select...</option> <option *ngFor="let year of years" [ngValue]="year">{{year}}</option> </select> <div [chart]="responseChart"></div> </div>