javascript - AngularJS if statement condition in an ng-repeat -

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i'm using ng-repeat in angularjs

<ul>     <li ng-repeat="question in questions" class="question list-group-item media">         <span class="question__type">{{ question.question }}</span>         <br>         <div class="btn-group question__answer justified nav-tabs">             <a class="btn {{question.type}}" ng-repeat="answer in question.answers">{{ answer }}</a>         </div>     </li> </ul>

i want able make section below if statement if {{question.type}} == 'radio' justified on btn-group div. 

        <div class="btn-group question__answer justified nav-tabs">             <a class="btn {{question.type}}" ng-repeat="answer in question.answers">{{ answer }}</a>         </div>

you can use ng-class. here jsbin demonstrating works. i've made justified class change text color red.

<div class="btn-group question__answer nav-tabs" ng-class="{justified: question.type == 'radio'}">     <a class="btn {{question.type}}" ng-repeat="answer in question.answers">{{ answer }}</a> </div>

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