Friday, December 17, 2010

jquery:for beginners

jQuery is a JavaScript Library.
jQuery greatly simplifies JavaScript programming.


The jQuery library can be added to a web page with a single line of markup.


$(this).hide()
Demonstrates the jQuery hide() function, hiding the current HTML element.



$("p").hide()
Demonstrates the jQuery hide() function, hiding all <p> elements.



$(".test").hide()
Demonstrates the jQuery hide() function, hiding all elements, with class="test"



$("#test").hide()
Demonstrates the jQuery hide() function, hiding the element, with id="test".






Adding the jQuery Library to Your Pages

<head>
<script type="text/javascript" src="jquery.js"></script>
</head
>

The following example demonstrates the jQuery hide() function, hiding all <p> 
elements in an HTML document.

<html>
<head>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
  $("button").click(function(){
    $("p").hide();
  });
});
</script>
</head>

<body>
<h2>This is a heading</h2>
<p>This is a paragraph.</p>
<p>This is another paragraph.</p>
<button>Click me</button>
</body>
</html>

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