Question

I have a condition, in my Angular app, in the view which disables the click event if false is returned, like so:

<li data-ng-click="!$ctrl.question.q1 || activeTab = 1" data-ng-disabled="!$ctrl.question.q1">Q.1</li>
<li data-ng-click="!$ctrl.question.q2 || activeTab = 2" data-ng-disabled="!$ctrl.question.q2">Q.2</li>

If question.q2 returns false, don't change the value of activeTab and remain disabled. The function works, however an error displays in the console:

Trying to assign a value to a non l-value

I found this thread，这解释了我如何分配值而不是比较它，但我需要分配它更改单独面板中显示的内容。在添加条件之前，选项卡功能正常工作。

问题

如何解决此错误？

<uib-tabset active="activeTab">
    <uib-tab heading="" index="1" data-ng-hide="true">
       //content
    </uib-tab> 
    <uib-tab heading="" index="2" data-ng-hide="true">
       //content
    </uib-tab> 
</uib-tabset>

Answer 1

data-ng-click内的逻辑读作＆＃34; NOT $ ctrl.question.q2或指定activeTab值2＆＃34;

我认为你想要的是一个简写if语句，使用三元运算符：

data-ng-click="activeTab = $ctrl.question.q2 ? 2 : activeTab"

其中读取为：＆＃34;如果$ ctrl.question.q2为true，则将值2分配给activeTab，或者如果$ ctrl.question.q2为false，则为其分配旧值＆＃34;

Trying to assign a value to a non l-value - AngularJs

1 个答案: