Determine whether a Deferred object has been rejected. As of jQuery 1.7 this API has been deprecated; please use deferred.state() instead. Returns true if the Deferred object is in the rejected state, meaning that either deferred.reject() or deferred.rejectWith() has been called for the object and the failCallbacks have been called (or are in the process of being called). Note that a Deferred object can be in one of three states: pending, resolved, or

Attach a handler to an event for the elements. The handler is executed at most once per element per event type. The .one() method is identical to .on(), except that the handler is unbound after its first invocation. For example: $( "#foo" ).one( "click", function() { alert( "This will be displayed only once." ); }); After the code is executed, a click on the element with ID foo will display the alert. Subsequent clicks will do nothing. This code is

:target selector

Selects the target element indicated by the fragment identifier of the document's URI. If the document's URI contains a fragment identifier, or hash, then the :target selector will match the element with an ID that matches the identifier. For example, given a document with a URI of http://example.com/#foo, $( "p:target" ) will select the <p id="foo"> element. Further discussion of this usage can be found in the W3C CSS specification.

jQuery.boxModel

States if the current page, in the user's browser, is being rendered using the W3C CSS Box Model. This property was removed in jQuery 1.8. Please try to use feature detection instead. jQuery.boxModel version added: 1.0

Shake effect

Shakes the element multiple times, vertically or horizontally. shake direction (default: "left") String A value of "left" or "right" will shake the element horizontally, and a value of "up" or "down" will shake the element vertically. The value specifies which direction the element should move

Data Attributes

Data Attributes Data attribute reference The jQuery Mobile framework uses HTML5 data- attributes to allow for markup-based initialization and configuration of widgets. These attributes are completely optional; calling plugins manually and passing options directly is also supported. To avoid naming conflicts with other plugins or frameworks that also use data- attributes, set a custom namespace by modifying the ns global option. Button Links with data-role="button". Input-based buttons, links i

.nextUntil()

Get all following siblings of each element up to but not including the element matched by the selector, DOM node, or jQuery object passed. Given a selector expression that represents a set of DOM elements, the .nextUntil() method searches through the successors of these elements in the DOM tree, stopping when it reaches an element matched by the method's argument. The new jQuery object that is returned contains all following siblings up to but not inc

:has() selector

Selects elements which contain at least one element that matches the specified selector. The expression $( "div:has(p)" ) matches a <div> if a <p> exists anywhere among its descendants, not just as a direct child. Because :has() is a jQuery extension and not part of the CSS specification, queries using :has() cannot take advantage of the performance boost provided by the native DOM querySelectorAll() method. For better performance in mode

.removeAttr()

Remove an attribute from each element in the set of matched elements. The .removeAttr() method uses the JavaScript removeAttribute() function, but it has the advantage of being able to be called directly on a jQuery object and it accounts for different attribute naming across browsers. Note: Removing an inline onclick event handler using .removeAttr() doesn't achieve the desired effect in Internet Explorer 6, 7, or 8. To avoid potential problems, use

event.pageY

The mouse position relative to the top edge of the document. event.pageY version added: 1.0.4 Examples: Show the mouse position relative to the left and top edges of the document (within this iframe). <!doctype html> <html lang="en"> <head> <meta charset="utf