Remove a handler from the event for all elements which match the current selector, based upon a specific set of root elements. The .undelegate() method is a way of removing event handlers that have been bound using .delegate(). As of jQuery 1.7, the .on() and .off() methods are preferred for attaching and removing event handlers. .undelegate() version added: 1.4.2

Display or hide the matched elements by animating their opacity. The .fadeToggle() method animates the opacity of the matched elements. When called on a visible element, the element's display style property is set to none once the opacity reaches 0, so the element no longer affects the layout of the page. Durations are given in milliseconds; higher values indicate slower animations, not faster ones. The strings 'fast' and 'slow' can be supplied to ind

Create stateful jQuery plugins using the same abstraction as all jQuery UI widgets. You can create new widgets from scratch, using just the $.Widget object as a base to inherit from, or you can explicitly inherit from existing jQuery UI or third-party widgets. Defining a widget with the same name as you inherit from even allows you to extend widgets in place. jQuery UI contains many widgets that maintain state and therefore have a slightly different u

See Toolbar Widget As of jQuery Mobile 1.4.0 the functionality of the fixedtoolbar widget has been moved to the toolbar widget.

Perform an asynchronous HTTP (Ajax) request. The $.ajax() function underlies all Ajax requests sent by jQuery. It is often unnecessary to directly call this function, as several higher-level alternatives like $.get() and .load() are available and are easier to use. If less common options are required, though, $.ajax() can be used more flexibly. At its simplest, the $.ajax() function can be called with no arguments: $.ajax(); Note: Default settings can

Insert content, specified by the parameter, after each element in the set of matched elements. The .after() and .insertAfter() methods perform the same task. The major difference is in the syntaxâspecifically, in the placement of the content and target. With .after(), the content to be inserted comes from the method's argument: $(target).after(contentToBeInserted). With .insertAfter(), on the other hand, the content precedes the method and is inserted

A factory function that returns a chainable utility object with methods to register multiple callbacks into callback queues, invoke callback queues, and relay the success or failure state of any synchronous or asynchronous function. The jQuery.Deferred() factory creates a new deferred object. The jQuery.Deferred method can be passed an optional function, which is called just before the method returns and is passed the new deferred object as both the t

A single content area with multiple panels, each associated with a header in a list. Tabs are generally used to break content into multiple sections that can be swapped to save space, much like an accordion. Tabs have a particular set of markup that must be used in order for them to work properly: The tabs themselves must be in either an ordered (<ol>) or unordered (<ul>) list Each tab "title" must be inside of a list item (<li>) and

Selects all elements that are hidden. Elements can be considered hidden for several reasons: They have a CSS display value of none. They are form elements with type="hidden". Their width and height are explicitly set to 0. An ancestor element is hidden, so the element is not shown on the page. Elements with visibility: hidden or opacity: 0 are considered to be visible, since they still consume space in the layout. During animations that hide an elem

Selects all elements that are the nth-child of their parent, counting from the last element to the first. Because jQuery's implementation of :nth- selectors is strictly derived from the CSS specification, the value of n is "1-indexed", meaning that the counting starts at 1. For other selector expressions such as :eq() or :even jQuery follows JavaScript's "0-indexed" counting. Given a single <ul> containing three <li>s, $( "li:nth-last-chil