Angular: Empty Fiddle

http://angularjs.org/

HTML

<script src="http://code.angularjs.org/angular-1.0.1.js"></script>
<div ng-controller="MyCtrl">
  {{name && test(name)}}
  {{name2 && test(name2)}}
</div>

JavaScript

var myApp = angular.module('myApp',[]);

function MyCtrl($scope) {
    $scope.name = 'Superhero';
    
    $scope.test = function(string) {
        return "-->" + string;
    }
}