AngularJS.docx - Introduction AngularJS is a JavaScript...

Introduction
AngularJS is a JavaScript framework for dynamic web application. It is a powerful library of
JavaScript. It can be added to an HTML page with a <script> tag. AngularJS, is an open-
source web application framework which is maintained by Google.
AngularJS is quite new Technology its first version 1.0 was released in 2012. It is developed
by Misko Hevery, a Google employee, he started to work on AngularJS in 2009. Its latest
version is 1.2.21.
AngularJS Directives
The AngularJS framework can be divided into three major parts;
 ng-app : The ng-app directive initializes an AngularJS application.
 ng-model : ng-model directive binds the value of HTML controls
(input, select, textarea) to application data.
 ng-bind : ng-bind directive binds the AngularJS application data to
HTML tags.
Why called AngularJS
Because HTML has Angular brackets and "ng" sounds like "Angular".
AngularJS a library, framework, plugin or a browser extension?
AngularJS is the framework of JavaScript. AngularJS is 100% JavaScript, 100% client-side
and compatible with both desktop and mobile browsers. So it's definitely not a plugin or some
other native browser extension.
Angularjs Features
It is framework of JavaScript and it have own event handing directives. It is open source and it
is free for every one. AngularJS have a lot of new features which is given below;

Two Way Data-Binding
It Support two way data binding features.
MVC
AngularJS is a framework of JavaScript which work on MVC model.

Dependency Injection
AngularJS has a built-in dependency injection subsystem that helps the developer by making
the application easier to develop, understand, and test.
Validation
AngularJS provides client side validation same like JavaScript. Using AngularJS you can
create your own validation.
Filter
Filter are mainly used for modify the data. Filters can be added to expressions and directives
using a pipe (|) character.
Directives
A directive is something that introduces new syntax. It improve the feature or functionality of
html elements. Directives are markers on a DOM element which attach a special behavior to
it. For example, static HTML does not know how to create and display a date picker widget.
To teach HTML this new syntax we need a directive. AngularJS directives are extended HTML
attributes with the prefix ng-.
Forms
An AngularJS form is a collection of input controls like button, input elements. AngularJS has
some features for binding data of HTML form input fields to the model object ($scope). You
bind an input field to a model property using the ng-model directive.
Advantage of Angularjs
AngularJS is a framework of JavaScript. It improve the properties of Html elements. Some
advantage of of angularjs are;
 Less Code: It help to write less code. Using angularjs developers
can achieve more functionality with writing less code.

 Testable: It make your application testable. AngularJS code is unit
testable.