This is what I have right now. Trying to call the checkToEnable function.
<input type="text" ([ngModel])="city.arr.date" [id]="city.id+'_arr_date'" [name]="city.id+'_arr_date'" [attr.disabled]="selectedTripType=='OT' ? true : null" class="input-icon-date input-default-last form-control" (click)="checkToEnable()" placeholder="Return Date"/>
(mousedown)="checkToEnable()"