July 1st, 2013 
To download and learn more about AngularJS Script File – Click Here
What is AngularJS ?
AngularJS is an open-source JavaScript framework, maintained by Google, that assists with running single-page applications. Its goal is to augment browser-based applications with model–view–controller (MVC) capability, in an effort to make both development and testing easier.
The library reads in HTML that contains additional custom tag attributes; it then obeys the directives in those custom attributes, and binds input or output parts of the page to a model represented by standard JavaScript variables. The values of those JavaScript variables can be manually set, or retrieved from static or dynamic JSON resources.
Why AngularJS ?
HTML is great for declaring static documents, but it falters when we try to use it for declaring dynamic views in web-applications. AngularJS lets you extend HTML vocabulary for your application. The resulting environment is extraordinarily expressive, readable, and quick to develop.
Different Angular directives
AngularJS directives allow the developer to specify custom and reusable HTML tags that moderate the behavior of certain elements.
ng-app
Declares an element as a root element of the application allowing behavior to be modified through custom HTML tags.
