AngularJS 使用ng-repeat報錯

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

ng-repeat報錯

   <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

  發現是因為相同的內容重復引起，解決方案

<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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