your div id=“tabs” can have a controller by setting: ng-controller=“comments”.
There you can check every Xs if there is any updates on comments or whatever you do to check for updates, and set a $scope.comments var with the number value.
@Bonda I have a similar issue and rather than using an interval I decided to use a Message Service to make changes to the tab, however something is off. I’m thinking its a scoping issue?