Change detection doesnt trigger

@Vartex05 wrote:

Hi, in my ionic 5 app, i encountered strange problem with change detection. In my Cart page, i display list of products, and user can send order with fab button. Everything works, but when i hit the button, i want to reset all items, that are displayed. I do this in processTransacton method.
Problem is, that it doesnt trigger change detection, so old items doesnt disappear until i hit another button on the page. Any ideas what can cause this? My code looks like this:

<ion-content class="ion-padding">
  <ion-button expand="block" (click)="openProductList()">Přidat položku</ion-button>
  <div *ngFor="let product of selectedProducts">
    <app-cart-item [cartItem]="product" (remove)="removeProduct($event)">
    </app-cart-item>
  </div>
  <ion-fab vertical="bottom" horizontal="end" slot="fixed">
    <ion-fab-button color="success" (click)="processTransaction()">
      <ion-icon name="checkmark-outline"></ion-icon>
    </ion-fab-button>
  </ion-fab>
</ion-content>

  processTransaction(){
    this.productService.sendOrderCash([...this.selectedProducts]).subscribe(result=>{
      this.lastSelection=[...this.selectedProducts];
      this.selectedProducts=[];
      console.log(this.selectedProducts);
    });

  }

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