Introduction to Angular Js 

• AngularJS is a JavaScript framework maintained by Google for building dynamic, single‑page web applications (SPAs).

• AngularJS was originally developed in 2009 by Miško Hevery and Adam Abrons at Brat Tech LLC

• AngularJS extends HTML with new attributes.
• AngularJS follows an MVC (Model-View-Controller) or MVW (Model-View-Whatever) architectural pattern

• Advantages:

  • Reduces amount of code needed.

  • Provides structured development.

  • Easy to test and maintain

• Use Cases:

• Dynamic forms, dashboards, portals, and interactive web apps.

How to Use Angularjs?

There are two main methods to use AngularJS in your project:

1. CDN Method (Easiest & Recommended)

Just add the AngularJS CDN link inside your HTML <head> tag or at the end of <body>:

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.8.2/angular.min.js"></script>

2. Local Installation Method

1. Go to AngularJS download link:
   https://ajax.googleapis.com/ajax/libs/angularjs/1.8.2/angular.min.js

2. Right-click → Save As → Save it to your project folder (example: js/angular.min.js)

3. Add the script in your HTML

             <script src="js/angular.min.js"></script>

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Now add ng-app="" to activate AngularJS in your page:

<!DOCTYPE html>
<html ng-app="">
<head>
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.8.2/angular.min.js"></script>
</head>
<body>

    <h2>{{ 5+2}}</h2>

</body>
</html>