src/app/core/nav/nav.html

<div class="nav">
  <ul>
    <li ng-repeat="route in vm.routes" ui-sref-active="active" ng-class="vm.isRouteActive(route)">
      <a ng-if="route.state" ui-sref="{{route.state}}">{{route.label}}</a>
      <a ng-if="route.url" href="#/{{route.url}}">{{route.label}}</a>
    </li>
  </ul>
</div>