Advantages of Angular JS

1. Data Binding - Angular JS provides two way binding is automatic synchronization of the data between model and view.
2. Extensible - AngularJS is customized and extensible . Allows you to create customizable components.
3. Code Reusability and Maintainability - AngularJS forces you to write code in modular way. Variables and functions can only be created to the respective component(Controller). Provides service and factory implemetation to use across the controllers.
4. Compatibility - AngularJS is compatible to all major browsers
5. Testing - AngularJS is designed to be testable so that you can test your AngularJS app components as easy as possible. It has dependency injection at its core, which makes it easy to test.