如何使用angularjs切换子元素类

Question

单击锚点如何切换子span元素类？

我的锚点上已经有一个点击功能：点击如何切换＆＃34; glyphicon-chevron-down＆＃34; to＆＃34; glyphicon-chevron-up＆＃34; ？

    <a ng-click="toggleList()">
     View More <span class="glyphicon glyphicon-chevron-down"></span>
    </a>

Answer 1

你可以

<强>标记

<a ng-click="toggleList()">
     View More <span class="glyphicon" ng-class="getClass()"></span>
</a>

<强>代码

$scope.toggleList = function(){
   //other logic here
   $scope.isDown = !$scope.isDown; 
}

$scope.getClass = function(){
    return $scope.isDown ? 'glyphicon-chevron-down': 'glyphicon-chevron-up';
}