角，limitTo和跟踪由$指数 [英] Angular, limitTo and track by $index

问题描述

我试图限制对象在未来通过过滤（因为会有显示所有最终的选项），但是我对指数试图limitTo和轨道时遇到了问题。这里是code：

I am trying to limit an object coming in by filtering (because there will be an option to show all eventually), however I am running into issues when trying to limitTo and track by index. Here is the code :

 <div ng-repeat="item in filter.values track by $index | limitTo:filterLimit" class="cengage-builder-result-filter-value" value="item" update-filter="updateFilter">

在控制器：

  $scope.filterLimit = 5;

它说我有角度误差受骗者所以我用$指数的思维轨迹不在这里工作。似乎无法找到一个妥善的办法做到这一点，可以使用一些帮助。谢谢！

It's saying I have dupes in the angular error so I'm thinking the track by $index isn't working here. Can't seem to find a proper way to do this, could use some help. Thanks!

推荐答案

过滤器，例如 limitTo ，排序依据，等等......必须由来之前的轨道，因为它们应用到阵列源，而不是对轨道由前pression。

Filters, like limitTo, orderBy, etc... must come before track by, since they apply to the array source, rather than to the track by expression.

<div ng-repeat="item in filter.values | limitTo:filterLimit track by $index">

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