AngularJS 使用ng-repeat报错 [ngRepeat:dupes]

编程学习 2021-07-04 19:20www.dzhlxh.cn编程入门
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AngularJS 使用ng-repeat报错

 [ngRepeat:dupes] Duplicates in a repeater are not allowed. Use 'track by' expression to specify uniq

ng-repeat报错

   
<div ng-init="words = ['高校','高校','高校']" ng-repeat="word in words"> 
  {{word}} 
</div> 

[ngRepeat:dupes] Duplicates in a repeater are not allowed. Use 'track by' expression to specify unique keys

  发现是因为相同的内容重复引起,解决方案

<div ng-init="words = ['高校','高校','高校']" ng-repeat="word in words track by $index"> 
  {{word}} 
</div> 

在ng-repeat后面加上

track by $index 

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