Service and Factory

[anything963]

I'm a little confused after reading your post here:

From AngularJS docs

AngularJS services are:
Singletons – Each component dependent on a service gets a reference to the single instance generated by the service factory.

My confusion is, if they are singletons why do you instantiate them using 'new' keyword? My understanding was you could just include them as dependency and use the service methods, just like $http.

And factory, as the name implies, is responsible for creating instances of objects and you would use 'new' to instantiate those objects.

Am I missing something here? Is there a concept I'm failing to understand here?