javascript - 在 javascript 中对数组使用 ng-repeat 时出现错误

Question

我在运行代码时遇到了这个问题

<div ng-model="activeFilterCtrl.selectedfilters" ng-repeat="filters in activeFilterCtrl.selectedfilters" ng-model-options="{trackBy: '$value.params'}" flex>
      <md-button name="mylabel" ng-click="activeFilterCtrl.clearvalue()">{{filters.params}}</md-button>
</div>

我不断收到此错误。

 Error: [ngRepeat:dupes] Duplicates in a repeater are not allowed. Use 'track by' expression to specify unique keys. Repeater: filters in activeFilterCtrl.selectedfilters, Duplicate key: string:a, Duplicate value: a

请提供解决方案以下是所选过滤器的值

selected filter value is [{"params":"min","value":5}, {"params":"max","value":30}]

Answer 1

试试这个

 ng-repeat="filters in activeFilterCtrl.selectedfilters track by $index"