Ember

A framework with a complex architecture for quickly creating large client applications.

This framework resembles both Angular and Backbone. It is one of the first frameworks based on JavaScript. However, Ember is not inferior to its more modern counterparts. Thus, it features the technology of tracked characteristic transformations, which makes it easier to monitor the change of states and display their graphical representation.

It is notable for a rather sophisticated architecture that allows one to build large client applications in a short time. It also features classic MVC patterns. Based on this framework, applications are made up of utilities, templates, adapters, services, auxiliary objects, controllers, models, and add-ons.
The most interesting feature is the command line tools. They help a frontend programmer and make their work much more efficient and productive. Thanks to the Ember CLI, all the necessary elements are created: project templates, layouts, etc.