Introduction of JavaScript

What is javascript ?

• JavaScript is the programming language of the Web.

• JavaScript is the world's most popular programming language.

Why learn javascript ?

• Javascript is used to add behavior to any web page.

• To intract with java script world we use .

• we can also load the javascript file using script tag.

<body>
      <center>
              <button> click me </button>
     </center>
<script src = "./index.js"></script>
</body>

• Also Write javascript for server.

• Along with that using Javascript, HTML and CSS .you can create desktop Application .

• you can also create native app for adroid and ios.

• Auto complete search is also done with javascript .

• Animation vedio can also create Using javascript.

Different ways to execute javascript in browser.

1. Adding javascript in an HTML file.

• Move tha javascript code from HTML file to script.js

• Javascript file are attached to HTML file using the src attribute of the script tag.

• The src Attribute need the path of the javascript file.

2. Attaching an external javascript file .

When the code is lot we put into a seprate file.

• Create a file Script.js

• Extension of javascript is .js