yel-dspace-angular/src/app/object-list/object-list-element/object-list-element.component.html

<div [ngSwitch]="object.type">
    <ds-item-list-element *ngSwitchCase="type.Item" [item]="object"></ds-item-list-element>
    <ds-collection-list-element *ngSwitchCase="type.Collection" [collection]="object"></ds-collection-list-element>
    <ds-community-list-element *ngSwitchCase="type.Community" [community]="object"></ds-community-list-element>
</div>