CanDeactivateGuard deneric

CanDeactivateGuard.ts

@Injectable()
export class CanDeactivateGuard implements CanDeactivate<ComponentCanDeactivate> {
  canDeactivate(component: ComponentCanDeactivate): boolean {
   
    if(!component.canDeactivate()){
        if (confirm("You have unsaved changes! If you leave, your changes will be lost.")) {
            return true;
        } else {
            return false;
        }
    }
    return true;
  }
}