Generally follow:

• https://angular.io/styleguide

Services

Based on https://docs.angularjs.org/guide/services, Services are:

1. @Injectable() - can be dependency injected (Singleton, holds some state) - in components or other services
2. Give them a '.service' suffix

Functional Classes

This is everything else.

Ideally we should only use services when necessary (ie. hold some state) and then defer to either standard classes that we new() or better still, standard classes with static methods (since more efficient as no copies created on the stack; and easier to code since don't need to new() first).

These will NOT have a .service suffix.