I want the ng-repeat to run only when the photos.length > 1
我希望ng-repeat只在photos.length> 1时运行
Doing this doesn't seem to work:
这样做似乎不起作用：
<div ng-repeat="thumb in photos | photos.length > 1">
Is there any quick trick / elegant way to do this? I just need to check for array length and nothing else fancy.
有没有快速的技巧/优雅的方式来做到这一点？我只需要检查数组长度，没有别的想象。
I would hate to duplicate the array to another array by doing something like this
我不想通过做这样的事情将数组复制到另一个数组
if (oldArray.length > 1)
newArray = photos;
else
newArray = [];
...and then do ng-repeat on newArray. This seems inefficient.
...然后在newArray上执行ng-repeat。这似乎效率低下。
Thanks.
谢谢。
2 个解决方案
#1
39
Try:
尝试：
<div ng-repeat="thumb in photos" ng-if="photos.length > 1"></div>
if the ng-if condition is not satisfied those elements will be removed from the DOM. See http://docs.angularjs.org/api/ng/directive/ngIf for further reference.
如果不满足ng-if条件，那么这些元素将从DOM中删除。有关进一步的参考，请参见http://docs.angularjs.org/api/ng/directive/ngIf。
#2
5
You could try using the ng -if directive to check the condition you describe e.g.
您可以尝试使用ng -if指令来检查您描述的条件，例如
<div ng-if='photos.length > 1'> your HTML here </div>
#1
39
Try:
尝试：
<div ng-repeat="thumb in photos" ng-if="photos.length > 1"></div>
if the ng-if condition is not satisfied those elements will be removed from the DOM. See http://docs.angularjs.org/api/ng/directive/ngIf for further reference.
如果不满足ng-if条件，那么这些元素将从DOM中删除。有关进一步的参考，请参见http://docs.angularjs.org/api/ng/directive/ngIf。
#2
5
You could try using the ng -if directive to check the condition you describe e.g.
您可以尝试使用ng -if指令来检查您描述的条件，例如
<div ng-if='photos.length > 1'> your HTML here </div>