如何使用现有的班级名称添加班级名称 [英] How to add class name with the existing class name

问题描述

我从服务器获取classname作为red，blue或green.我试图用该元素添加该类.但什么也没发生.

I am getting classname from server as red,blue or green. i trying to add that class with the element. but nothing happening.

有人纠正我吗?

这是我的尝试:

    <span class="proStatus" ng-class="{activeApp.status}"> //class not adds
      {{activeApp.status}} //i am getting `blue` here.
   </span>

推荐答案

按原样放置，

<span class="proStatus {{activeApp.status}}"> ...

或更有效地

<span class="proStatus" ng-class="activeApp.status"> ....

这是 DOC

它表示您可以将scope值绑定为

it says you can bind a scope value as,

$scope.className = 'this-is-class-name';

<span class="proStatus" ng-class="className">

为什么要在ng-class中使用{}

如果您要基于如下所示的条件来应用CSS类，

if you want to apply a css class based on some condition like below,

<span class="proStatus" ng-class="{ 'className' : applyClass }">

css类className仅在applyClass设置为true

css class className will apply to the span only when applyClass is sets to true

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