I am fairly new to angularjs and am not able to find any documentation or examples for this. What I am looking to do is to extend a basic service so that i can use the methods defined under the basic service from other services. So for example say i have a basic service as follows.

angular.module('myServices', []).



    factory('BasicService', function($http){

        var some_arg = 'abcd'

        var BasicService = {

            method_one: function(arg=some_arg){ /*code for method one*/},

            method_two: function(arg=some_arg){ /*code for method two*/},

            method_three: function(arg=some_arg){ /*code for method three*/},

        });

        return BasicService;

    }   

);

Now i want to define an Extended service that extends from the above BasicService so that i can use methods defined under the BasicService from my extended service. Maybe something like:

    factory('ExtendedService', function($http){

        var ExtendedService = BasicService();

        ExtendedService['method_four'] = function(){/* code for method four */}

        return ExtendedService;

    }