Remove Duplicates From Array in AngularJs

<!DOCTYPE html>
<html lang="en">
<head>
 <script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.2.13/angular.min.js"></script>
 <script>
var myApp = angular.module("myApp", []);
 myApp.controller("myController", function($scope) {
$scope.exampleArray = ['100','98','98','88','101','102','102'];
$scope.result = [];
 $scope.removeDuplicates = function() {
     $scope.result = $scope.exampleArray.filter(function(item, pos) {
     return $scope.exampleArray.indexOf(item) == pos;
     })
 };
});
</script>
</head>
<body>  
<div ng-app="myApp">  
<div ng-controller="myController"> 
 Array With Duplicate Values = {{exampleArray}}<br>
 Click to Remove Duplicates Array .<br>
 <button ng-click='removeDuplicates()' >Remove Duplicates</button><br>
 Final Array = {{result}}<br>

</div> 
</div>
</body>  
</html>