ng-repeat和ng-switch在相同元素上不起作用 [英] ng-repeat and ng-switch doesn't work on same element
问题描述
JS
$scope.mode = "test"
$scope.array = ['test1', 'test2', 'test3']
HTML
<div ng-switch on="mode">
<div ng-repeat="item in array" ng-switch-when="test">
Test {{item}}
</div>
</div>
在上述操作中,我得到的输出是
When I do this the above, the output I get is
Test Test Test
似乎无法访问该项目.如果我将ng-switch-when删除,则可以正常工作.
It can't seem to access item. If I remove the ng-switch-when then it works fine.
推荐答案
这是因为 ng-switch
创建了一个子作用域,并且同样适用于ng-repeat.ng-repeat优先运行 1000 和 ng-switch
在
It is because ng-switch
creates a child scope and same applies for ng-repeat. ng-repeat runs at priority 1000 and ng-switch
at 800. So the child scope created by ng-repeat
on each of the repeated div elements gets overwritten by ng-switch
, so the ng-repeat
assigned child scope on the element is gone ultimately. A possibly way could be to wrap your ng-switch outside ng-repeat since you anyways do not want to evaluate the ng-switch expression for every repeated element. This is with the 1.2 version.
现在从Angular的1.3.x版本开始,ng-switch的优先级已修改为
Now from 1.3.x version of angular the priority of ng-switch has been revise to 1200 and ng-repeat remains at 1000, so ng-repeated scope will prevail, since it is of lower priority now and it will work in that case.
Plnkr
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