AngularJS 1.x custom filter can't be injected, unknown provider

Question

I\'m trying to create a custom filter, but when I try to inject it into my controller, I get an \'Unknown provider\' error. I have checked and double checked all the references,

Answer 1

If you want to use filter inside a controller you have to inject $filter attribute to your controller and can access it like

$filter('filtername');

You can use like

function myCtrl($scope, $filter)
{
    $filter('filtername')(arg1,arg2);
}