Question

angularjs怎样判断语句

Answer 1

1. 用三目运算符。

2. 使用ng-switch结构。

3. 使用ng-if。
   

angularjs中的判断语句说明。
由于angularjs不支持if-else结构，所以判断的写法如下：

1. 用三目运算符：

   <span>{{isLarge ? 'video.large' : 'video.small'}}</span>

2. 使用ng-switch结构：
   <div ng-switch on="video">
   <div ng-switch-when="video.large">
   </div>
   <div ng-switch-default>
   <!-- code to render the regular video block -->
   </div>
   </div>

3. 使用ng-if（angularjs 1.1.5以后版本有效）：
   <div ng-if="video == video.large">
   <!-- code to render a large video block-->
   </div>
   <div ng-if="video != video.large">
   <!-- code to render the regular video block -->
   </div>

   
   

Answer 2

and
<span ng-if="checked && checked2">
I'm removed when the checkbox is unchecked.
</span>

or
<span ng-if="checked || checked2">
I'm removed when the checkbox is unchecked.
</span>

Answer 3

angularjs中的判断语句说明：
由于angularjs不支持if-else结构，所以判断的写法如下：
1、用三目运算符：

<span>{{isLarge ? 'video.large' : 'video.small'}}</span>

2、使用ng-switch结构
<div ng-switch on="video">
<div ng-switch-when="video.large">
</div>
<div ng-switch-default>
<!-- code to render the regular video block -->
</div>
</div>

3、使用ng-if（angularjs 1.1.5以后版本有效）：
<div ng-if="video == video.large">
<!-- code to render a large video block-->
</div>
<div ng-if="video != video.large">
<!-- code to render the regular video block -->
</div>