Not the elegant prince of our debauched and vicious art, not the jeweled idol of our society churches--but the Jesus of the awful reality, the man of sorrow and pain, the outcast, despised of the world, who had nowhere to lay his head--.
Service is singleton and simple version of Factory. While Factory is a simple version of Provider, Factory is a more flexable compared to service method, and a short handed for configuring a service when $get method is required. Provider creates new object by the $get factory function. Provider is not injectable during run phase or run time while all others are ( Constant, Variable, Service, and Factory), however, Provider is injectable during the configuration phase or compile time.
AngularJS (commonly referred to as  Angular ) is an open-source web application framework maintained by Google and by a community of individual developers and corporations to address many of the challenges encountered in developing single-page applications.ccording to JavaScript analytics service Libscore, AngularJS is used on the websites of NBC, Walgreens, Intel, Sprint, ABC News, and approximately 8,400 other sites out of 1 million tested in July 2015.