ng-class不在简单示例中评估表达式

Question

此代码在ng-repeat循环中.表达式不是在浏览器内部进行评估,整个语句也是在浏览器中.

 <i ng-class="'icon-ok' : student.is_passed == 'passed', 'icon-remove': student.is_passed == 'failed'"></i>

Answer 1

你需要将表达式放在花括号中 "{}"

<i ng-class="{'icon-ok' : (student.is_passed == 'passed'), 'icon-remove': (student.is_passed == 'failed')}"></i>