I have this expression in the view:
我在视图中有这个表达式：
<div ng-repeat="friend in (filtered = (friendsData | matchnames:search.pattern)) | myLimitTo : 9 : pageIndex * 9"" >
I do the filtered so i can show something like this
我做了过滤，所以我可以显示这样的东西
{{filtered.length}}
in the view which works great, but how can i access this param in the controller so i do stuff with it?
在视图中工作得很好，但是如何在控制器中访问此参数，以便我用它做什么呢？
1 个解决方案
#1
4
You can't access $scope.filtered because ng-repeat creates a new scope and sets filtered to it.
您无法访问$ scope.filtered，因为ng-repeat会创建一个新范围并对其进行过滤。
Technically you can create $scope.viewData = {} in your controller and use the following code in the template:
从技术上讲，您可以在控制器中创建$ scope.viewData = {}并在模板中使用以下代码：
<div ng-repeat="friend in (viewData.filtered = (friendsData | matchnames:search.pattern)) | myLimitTo : 9 : pageIndex * 9"" >
There are some other possible ways to do the similar thing: eg if you use controllerAs you could set filtered array to it.
还有一些其他可能的方法来做类似的事情：例如，如果你使用控制器，你可以设置过滤数组。
But in general all these tricks are not very good practice because you want to pass variable implicitly to controller and your angular expression looks quite complex.
但总的来说，所有这些技巧都不是很好的练习，因为你想隐式地将变量传递给控制器，你的角度表达看起来很复杂。
#1
4
You can't access $scope.filtered because ng-repeat creates a new scope and sets filtered to it.
您无法访问$ scope.filtered，因为ng-repeat会创建一个新范围并对其进行过滤。
Technically you can create $scope.viewData = {} in your controller and use the following code in the template:
从技术上讲，您可以在控制器中创建$ scope.viewData = {}并在模板中使用以下代码：
<div ng-repeat="friend in (viewData.filtered = (friendsData | matchnames:search.pattern)) | myLimitTo : 9 : pageIndex * 9"" >
There are some other possible ways to do the similar thing: eg if you use controllerAs you could set filtered array to it.
还有一些其他可能的方法来做类似的事情：例如，如果你使用控制器，你可以设置过滤数组。
But in general all these tricks are not very good practice because you want to pass variable implicitly to controller and your angular expression looks quite complex.
但总的来说，所有这些技巧都不是很好的练习，因为你想隐式地将变量传递给控制器，你的角度表达看起来很复杂。