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var dataBank = [
    {first: 'Jackson' , last: 'Pollock'} ,     
    {first: 'George' , last: 'Washington'} , 
    {first: 'Richard', last: 'Hatch'}     
];
var app = angular.module("myApp", []);
app.controller("recordViewer", function($scope) {
    $scope.recordIndex = 0;
    
    $scope.nextRecord = function() {
        $scope.recordIndex++;
        if ($scope.recordIndex > 2) {
            $scope.recordIndex = 0;
        }
        $scope.currentRecord = {first: dataBank[$scope.recordIndex].first , 
                                last : dataBank[$scope.recordIndex].last};

    };
});