Learn jQuery: A simple ‘Hello World’ jQuery Code


jQuery – A powerful javascript library capable of doing all your complex javascript actions and functionality in a line or two. How cool is that.

Pre-requisites : Notepad, jquery.js file(You can get it here),  some coding background and an open mind

Let’s Start with a simple Hello World:

Open your notepad, create a html file as below:

<html>

<head>

<title>Hello World</title>

<script type=”text/javascript” language=”javascript”  src=”jquery-1.3.2.min.js”>

<script type=”text/javascript” language=”javascript”>

$.document.ready(function(){

$(“#btnX”).click(function(){

alert(‘Hello World’);

});

});

</script>

</head>

<body>

<input id=”btnX” type=”button” value=”Click Me” />

</body>

</html>

Save the above file as “HelloWorld.html” in a Folder. Copy the jquery-1.3.2.min.js  file to the same folder. Now double-click the button named “Click Me“.

Voila! An alert box pops up with “Hello World” text.

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