Angular ng-repeat Error “Duplicates in a repeater are not allowed.”

Answer 1

What do you intend your "range" filter to do?

Here's a working sample of what I think you're trying to do: http://jsfiddle.net/evictor/hz4Ep/

HTML:

  
    
    Item {{$index}}
    

      Comment {{$index}}
      {{comment}}
    
  

JS:

angular.module('manyminds', [], function() {}).filter('range', function() {
    return function(input, min, max) {
        var range = [];
        min = parseInt(min); //Make string input int
        max = parseInt(max);
        for (var i=min; i<=max; i++)
            input[i] && range.push(input[i]);
        return range;
    };
});

function MainCtrl($scope)
{
    $scope.items = [
        {
            comments: [
                'comment 0 in item 0',
                'comment 1 in item 0'
            ]
        },
        {
            comments: [
                'comment 0 in item 1',
                'comment 1 in item 1',
                'comment 2 in item 1',
                'comment 3 in item 1'
            ]
        }
    ];
}