<mat-listclass="nav mat-list"*ngFor="let groupMenuItem of groupMenuItems; let firstGroup = first; let i = index"[class.nav-list-item]="showItem(groupMenuItem)"[ngClass]="{'flex-grow-1':i ==groupMenuItems.length-2}">
<mat-list-itemrouterLinkActive="active"[routerLinkActiveOptions]="{exact:true}"*ngFor="let groupMenuRoute of groupMenuItem.routes; let first = first"class="nav-item"