[ngRepeat:dupes] Duplicates in a repeater are not allowed

AngularJS does not allow duplicates in a ng-repeat directive. This means if you are trying to do the following, you will get an error.

1 2 3

// the below will throw an error Error: Duplicates in a repeater are not allowed. Repeater: row in [1,1,1] key: number:1 <div ng-repeat= "row in [1,1,1]" >

 

 

However, changing the above code slightly as below will get it working again.

1 2	// this will work <div ng-repeat= "row in [1,1,1] track by $index" >

 

 

报重复的key,在ng-repeat 添加track by $index