Angular.js was developed by Google and was released in 2010.
As of now it is maintained by community and Google itself. According to Libscore, Angular is used on more than 12 thousand sites, with top rated three reading:
○ Diply.com #59
○ Weather.com #174
○ Gfycat.com #177
Similarly to ReactJS, Angular principles suppose that components connections and user interfaces are better done with declarative programming technique. Angular JS separates DOM manipulation from application logic, and separates the client and server sides of an application.
Two-way data binding, the behavior of the framework implying that any alterations to the view are reflected in the model, whilst changes in the model, detected by $scope, alter HTML expressions in the view via a controller, eases the templating work for the server back-end.
"Angular.js allows to write a clean and error-tolerant code of a web application. This framework is extremely useful for creating a Single Page Application in a very transparent and sustainable way."