Angular ng-repeat Error “Duplicates in a repeater

Question

I am defining a custom filter like so:

<div class="idea item" ng-repeat="item in items" isoatom>    
    <div class="section comment clearfix" ng-repeat="comment in item.comments | range:1:2">
        ....
    </div>
</div>

As you can see the ng-repeat where the filter is being used is nested within another ng-repeat

The filter is defined like this:

myapp.filter('range', function() {
    return function(input, min, max) {
        min = parseInt(min); //Make string input int
        max = parseInt(max);
        for (var i=min; i<max; i++)
            input.push(i);
        return input;
    };
});

I'm getting:

Error: Duplicates in a repeater are not allowed. Repeater: comment in item.comments | range:1:2 ngRepeatAction@https://ajax.googleapis.com/ajax/libs/angularjs/1.1.4/an

Answer 1

For those who expect JSON and still getting the same error, make sure that you parse your data:

$scope.customers = JSON.parse(data)

Answer 2

Duplicates in a repeater are not allowed. Use 'track by' expression to specify unique keys. Repeater: sdetail in mydt, Duplicate key: string: , Duplicate value:

I faced this error because i had written wrong database name in my php api part......

So this error may also occurs when you are fetching the data from database base, whose name is written incorrect by you.

Answer 3

Just in case this happens to someone else, I'm documenting this here, I was getting this error because I mistakenly set the ng-model the same as the ng-repeat array:

 <select ng-model="list_views">
     <option ng-selected="{{view == config.list_view}}"
         ng-repeat="view in list_views"
         value="{{view}}">
         {{view}}
     </option>
 </select>

Instead of:

<select ng-model="config.list_view">
     <option ng-selected="{{view == config.list_view}}"
         ng-repeat="view in list_views"
         value="{{view}}">
         {{view}}
     </option>
 </select>

I checked the array and didn't have any duplicates, just double check your variables.

Answer 4

If you call a ng-repeat within a < ul> tag, you may be able to allow duplicates. See this link for reference. See Todo2.html