Angular >=1.3.16 到最新(编写/更新时为 1.5.5)使用''
(空字符串)(或'!!'
也有效)
<ul>
<li ng-repeat="detail in details | filter:{shortDescription: ''}">
<p>{{detail.shortDescription}}</p>
</li>
</ul>
示例:http: //jsfiddle.net/TheSharpieOne/1mnachk6/
角度 >=1.3.6 和 <=1.3.15 使用'!null'
<ul>
<li ng-repeat="detail in details | filter:{shortDescription: '!null'}">
<p>{{detail.shortDescription}}</p>
</li>
</ul>
示例:http: //jsfiddle.net/TheSharpieOne/4wxs67yv/
Angular >=1.2 和 <=1.3.5 使用''
(空字符串)(或者'!!'
也可以)
<ul>
<li ng-repeat="detail in details | filter:{shortDescription: ''}">
<p>{{detail.shortDescription}}</p>
</li>
</ul>
示例:http: //jsfiddle.net/TheSharpieOne/ovsqf17n/
角度 <1.2'!!'
<ul>
<li ng-repeat="detail in details | filter:{shortDescription: '!!'}">
<p>{{detail.shortDescription}}</p>
</li>
</ul>
示例:http: //jsfiddle.net/TheSharpieOne/RGEdc/
总的来说,'!!'
有最好的支持,但是''
(空字符串)是推荐的并且是为此而设计的。