Hi. I am trying to get attr 'data-id of specific button since few hours and I can not manage to do it. please help

2. <div class="row" id="answersRow"> 
3. <div class="col-xs-12" id="answers">
4. <button  data-id="{{answer.id}}" ng-repeat = "answer in post.answers track by $index"             class="btn btn-success answer" ng-click="addVote()">{{answer.text}}</button>
5. </div>
6. </div>

My approach:

1. $('.answer').click(function(){
2.       $(this).attr('data-id');
3. })