---
title: jQuery
---
## jQuery
![logo](https://upload.wikimedia.org/wikipedia/en/thumb/9/9e/JQuery_logo.svg/250px-JQuery_logo.svg.png "jQuery logo")
jQuery is the most widely-used JavaScript library, and is used in more than half of all major websites.
jQuery makes web development easier to use by providing a number of 'helper' functions. These help developers to quickly write DOM (Document Object Model) interactions without needing to manually write as much JavaScript themselves.
jQuery adds a global variable with all of the libraries methods attached. The naming convention is to have this global variable as $
. by typing in $.
you have all the jQuery methods at your disposal.
## Example
When a user clicks on a button, all \
elements will be hidden: ```javascript $(document).ready(function(){ $("button").click(function(){ $("p").hide(); }); }); ``` #### More Information * [jQuery Home Page](https://jquery.com/)