@Component({ selector: 'app-onb', standalone: true, imports: [], templateUrl: './onb.component.html', }) export class OnbComponent implements OnDestroy { receivedData: any; onbResponse = signal<any[]>([]); private sseSubscription?: Subscription; constructor( private router: Router, private onbService: OnbService, ) { const navigation = this.router.getCurrentNavigation(); this.sseSubscription = this.onbService.run().subscribe({ next: (data) => { this.onbResponse.update((values) => { if (!values) { return [data]; } return [...values, data]; }); alert(this.onbResponse()); //this is updated correctly }, error: (error) => { console.error('Received SSE error:', error); }, }); } } @if (onbResponse().length == 0) { <p>loading</p> } @else { {{onbResponse()}}strong text } I am receiving some data using a service and sse. All this works since the code is triggered and the alert pops up. The conditional rendering using signals and @if @else doesn't work. Continue reading...