AngularJS Filter with TypeScript and injection

Question

Can somebody provide me with an example of how I can create an Angular Filter in TypeScript that uses dependency injection. At the bottom is what I currently have, which is

Answer 1

It's generally better to use a function+module instead of a class when writing an Angular filter. You can structure the code like this:

function FriendlyDateFilter($filter) {
    return function (s: string): string {
        /* Your logic here */
    }
    /* Helper logic here */
}
module FriendlyDateFilter {
    export var $inject = ['$filter'];
}

angular.module("ReadingLog").filter("FriendlyDateFilter", FriendlyDateFilter);

You could also place both FriendlyDateFilter declarations inside another module if you're trying to avoid adding too much to the global scope.