AngularJS is an open source framework from Google
The most important feature of AngularJS is the ability to define your own HTML elements and HTML attributes which are available in the web application as standalone components. It is a bridge between developers and designers and lets the HTML semantics be expanded according to your own ideas.
AngularJS code is readable and understandable
You can find more information on AngularJS on Wikipedia: https://en.wikipedia.org/wiki/AngularJS