Currently in the process of converting a website from its previous templating to Angular. In the previous templating process we were using we were able to call helper method
Looking at the presented use case your best call would be the date filter described here: http://docs.angularjs.org/api/ng.filter:date Using this filter you could write:
{{CreatedDate | date}}
The mentioned filter is customizable so you could use different date formats etc.
Generally speaking filters are very nice for encapsulating formatting logic / UI helper functions. More on creating filters here: http://docs.angularjs.org/guide/dev_guide.templates.filters.creating_filters
Filters are nice and fit many use cases but if you are simply after using any function in your template it is possible. Just define a function in a scope and you are ready to use it directly in your template:
{{doSomething(CreatedDate)}}
where doSomething needs to be defined on a scope (a current one or one of the parent scopes):
function MyCtrl($scope) {
$scope.doSomthing = function(argument){
//ui helper logic here
}
}