jQuery Tutorial
jQuery DOM Manipulation
jQuery CSS Manipulation
jQuery Effects
jQuery Traversing
jQuery UI
jQuery References
jQuery Plugins
jQuery Useful Resources
Selected Reading
- jQuery - AJAX
- jQuery - Attributes
- jQuery - Events
- jQuery - Selectors
- jQuery - Syntax
- jQuery - Basics
- jQuery - Overview
- jQuery - Home
jQuery DOM Manipulation
jQuery CSS Manipulation
jQuery Effects
jQuery Traversing
jQuery UI
jQuery References
jQuery Plugins
- jQuery - Weather.js
- jQuery - Megadropdown.js
- jQuery - Producttour.js
- jQuery - Blockrain.js
- jQuery - Checkout.js
- jQuery - Whatsnearby.js
- jQuery - Filer.js
- jQuery - LogosDistort.js
- jQuery - Tagsort.js
- jQuery - Drawsvg.js
- jQuery - Slideshow.js
- jQuery - Progressbar.js
- jQuery - Alertify.js
- jQuery - Rowgrid.js
- jQuery - Slidebar.js
- jQuery - Multiscroll.js
- jQuery - Flickerplate.js
- jQuery - PagePiling.js
- jQuery - Plugins
jQuery Useful Resources
Selected Reading
- Who is Who
- Computer Glossary
- HR Interview Questions
- Effective Resume Writing
- Questions and Answers
- UPSC IAS Exams Notes
jQuery - Plugins
jQuery - Plugins
A plug-in is piece of code written in a standard JavaScript file. These files provide useful jQuery methods which can be used along with jQuery pbrary methods.
There are plenty of jQuery plug-in available which you can download from repository pnk at .
How to use Plugins
To make a plug-in s methods available to us, we include plug-in file very similar to jQuery pbrary file in the <head> of the document.
We must ensure that it appears after the main jQuery source file, and before our custom JavaScript code.
Following example shows how to include jquery.plug-in.js plugin −
<html>
<head>
<title>The jQuery Example</title>
<script type = "text/javascript"
src = "https://www.tutorialspoint.com/jquery/jquery-3.6.0.js">
</script>
<script src = "jquery.plug-in.js" type = "text/javascript"></script>
<script src = "custom.js" type = "text/javascript"></script>
<script type = "text/javascript" language = "javascript">
$(document).ready(function() {
.......your custom code.....
});
</script>
</head>
<body>
.............................
</body>
</html>
How to develop a Plug-in
This is very simple to write your own plug-in. Following is the syntax to create a a method −
jQuery.fn.methodName = methodDefinition;
Here methodNameM is the name of new method and methodDefinition is actual method definition.
The guidepne recommended by the jQuery team is as follows −
Any methods or functions you attach must have a semicolon (;) at the end.
Your method must return the jQuery object, unless exppcity noted otherwise.
You should use this.each to iterate over the current set of matched elements - it produces clean and compatible code that way.
Prefix the filename with jquery, follow that with the name of the plugin and conclude with .js.
Always attach the plugin to jQuery directly instead of $, so users can use a custom apas via noConfpct() method.
For example, if we write a plugin that we want to name debug, our JavaScript filename for this plugin is −
jquery.debug.js
The use of the jquery. prefix epminates any possible name colpsions with files intended for use with other pbraries.
Example
Following is a small plug-in to have warning method for debugging purpose. Keep this code in jquery.debug.js file −
jQuery.fn.warning = function() {
return this.each(function() {
alert( Tag Name:" + $(this).prop("tagName") + ". );
});
};
Here is the example showing usage of warning() method. Assuming we put jquery.debug.js file in same directory of html page.
<html>
<head>
<title>The jQuery Example</title>
<script type = "text/javascript"
src = "https://www.tutorialspoint.com/jquery/jquery-3.6.0.js">
</script>
<script src = "jquery.debug.js" type = "text/javascript">
</script>
<script type = "text/javascript" language = "javascript">
$(document).ready(function() {
$("span").warning();
$("p").warning();
});
</script>
</head>
<body>
<p>This is paragraph</p>
<span>This is spanision</span>
</body>
</html>
This would alert you with following result −
This is paragraph This is spanisionAdvertisements