AngularJS - Programmatically check whether filter exists

Question

Is there a way to programmatically check whether a filter with a given name exists?

I developed a directive to process page content based on a string input, I want it to react differently in case a certain part of the string corresponds to a filter that exists in my system. For example I have a localize filter:

// Somewhere in the code
var myInput = 'localize';

// Somewhere else
var contentToProcess = 'my content';
var result = '';
if ($filter.hasOwnProperty(myInput))    // TODO: this is the part I'm trying to figure out
    result = $filter(myInput)(contentToProcess);
else
    result = 'something else';

Answer 1

Jonathan's answers is also acceptable, but I wanted to find a way to check if a filter exists without using a try catch.

You can see if a filter exists like this:

return $injector.has(filterName + 'Filter');

The 'Filter' suffix is added by angular internally, so you must remember to add it or you will always return false