AngularJS Example

HTML

<div ng-app="helloHabrahabr">
    <span habra-habr some-attr="a+b"></span>    
</div>

JavaScript

angular.module('helloHabrahabr', [])
    .directive('habraHabr', function() {        
        return {
            template:"{{helloFn({a:1,b:2})}}",
            scope:{
                helloFn:'&someAttr'
            }
        }
    });