Store arbitrary data associated with the specified element. Returns the value that was set. Note: This is a low-level method; a more convenient .data() is also available. The jQuery.data() method allows us to attach data of any type to DOM elements in a way that is safe from circular references and therefore free from memory leaks. jQuery ensures that the data is removed when DOM elements are removed via jQuery methods, and when the user leaves the pa

Merge the contents of an object onto the jQuery prototype to provide new jQuery instance methods. The jQuery.fn.extend() method extends the jQuery prototype ($.fn) object to provide new methods that can be chained to the jQuery() function. jQuery.fn.extend( object ) version added: 1.0 object

A generic iterator function, which can be used to seamlessly iterate over both objects and arrays. Arrays and array-like objects with a length property (such as a function's arguments object) are iterated by numeric index, from 0 to length-1. Other objects are iterated via their named properties. The $.each() function is not the same as $(selector).each(), which is used to iterate, exclusively, over a jQuery object. The $.each() function can be used t

Load a JavaScript file from the server using a GET HTTP request, then execute it. This is a shorthand Ajax function, which is equivalent to: $.ajax({ url: url, dataType: "script", success: success }); The script is executed in the global context, so it can refer to other variables and use jQuery functions. Included scripts can have some impact on the current page. Success Callback The callback is fired once the script has been loaded but not n

Takes a string and throws an exception containing it. This method exists primarily for plugin developers who wish to override it and provide a better display (or more information) for the error messages. jQuery.error( message ) version added: 1.4.1 message String

Load JSON-encoded data from the server using a GET HTTP request. This is a shorthand Ajax function, which is equivalent to: $.ajax({ dataType: "json", url: url, data: data, success: success }); Data that is sent to the server is appended to the URL as a query string. If the value of the data parameter is a plain object, it is converted to a string and url-encoded before it is appended to the URL. Most implementations will specify a success han

Execute the next function on the queue for the matched element. Note: This is a low-level method, you should probably use .dequeue() instead. When jQuery.dequeue() is called, the next function on the queue is removed from the queue, and then executed. This function should in turn (directly or indirectly) cause jQuery.dequeue() to be called, so that the sequence can continue. jQuery.dequeue( element [, queueName ]

An object containing all CSS properties that may be used without a unit. The .css() method uses this object to see if it may append px to unitless values. You can think about jQuery.cssNumber as a list of all CSS properties you might use without a unit. It's used by .css() to determine if it needs to add px to unitless values. The keys of the jQuery.cssNumber object are camel-cased and the values are all set to true. If you want to prevent the .css()

A multi-purpose callbacks list object that provides a powerful way to manage callback lists. The $.Callbacks() function is internally used to provide the base functionality behind the jQuery $.ajax() and $.Deferred() components. It can be used as a similar base to define functionality for new components. $.Callbacks() supports a number of methods including callbacks.add(),callbacks.remove(), callbacks.fire() and callbacks.disable(). Getting started Th

Hook directly into jQuery to override how particular CSS properties are retrieved or set, normalize CSS property naming, or create custom properties. The $.cssHooks object provides a way to define functions for getting and setting particular CSS values. It can also be used to create new cssHooks for normalizing CSS3 features such as box shadows and gradients. For example, some versions of Webkit-based browsers require -webkit-border-radius to set the