AngularJS is a structural framework for dynamic web apps. It allow you to use HTML as your template language and lets you extend HTML's syntax to express your application's components clearly and succinctly. Angular's data binding and dependency injection eliminates much of the code for which you have to write the code manually. It all happens within the browser, making it an ideal partner with any server technology.
Two Way Data-Binding. Data binding, as in {{}}.
DOM control structures for repeating, showing and hiding DOM fragments.
Support for forms and form validation.
Attaching new behavior to DOM elements, such as DOM event handling.
Great support for jQuery and Ajax.
Grouping of HTML into reusable components.
Dependency Injection
Directives
Reusability of modules makes fast application development.
There are neat security constructs in Angularjs.
AngularJS has a built-in dependency injection subsystem that helps the developer to develop the application in a easier way to develop, understand, and test.
AngularJS incorporates the basic principles behind the original MVC software design pattern into how it builds client-side web applications.
The MVC or Model-View-Controller pattern means a lot of different things to different people. AngularJS does not implement MVC in the traditional sense, but rather something closer to MVVM (Model-View-ViewModel).
