Display the matched elements with a sliding motion. The .slideDown() method animates the height of the matched elements. This causes lower parts of the page to slide down, making way for the revealed items. Durations are given in milliseconds; higher values indicate slower animations, not faster ones. The strings 'fast' and 'slow' can be supplied to indicate durations of 200 and 600 milliseconds, respectively. If any other string is supplied, or if th

Returns whether event.stopImmediatePropagation() was ever called on this event object. This property was introduced in DOM level 3. event.isImmediatePropagationStopped() version added: 1.3 This method does not accept any arguments.

Add or remove one or more classes from each element in the set of matched elements, depending on either the class's presence or the value of the switch argument, while animating all style changes. Similar to native CSS transitions, jQuery UI's class animations provide a smooth transition from one state to another while allowing you to keep all the details about which styles to change in CSS and out of your JavaScript. All class animation methods, inc

Enable selection of text content within the set of matched elements. The .enableSelection() method can be used to re-enable selection of text that was disabled via .disableSelection(). .enableSelection() version added: 1.6, deprecated: 1.9 This method does not accept any arguments.

Selects all elements that are the last among siblings of the same element name. The :last-of-type selector matches elements that have no other element with the same parent and the same element name coming after it in the document tree. jQuery( ":last-of-type" ) version added: 1.9 Examples: F

Selects all elements that are the first among siblings of the same element name. The :first-of-type selector matches elements that have no other element with both the same parent and the same element name coming before it in the document tree. jQuery( ":first-of-type" ) version added: 1.9 Examples:

Add handlers to be called when the Deferred object is rejected. The deferred.fail() method accepts one or more arguments, all of which can be either a single function or an array of functions. When the Deferred is rejected, the failCallbacks are called. Callbacks are executed in the order they were added. Since deferred.fail() returns the deferred object, other methods of the deferred object can be chained to this one, including additional deferred.fa

Check to see if a DOM element is a descendant of another DOM element. The $.contains() method returns true if the DOM element provided by the second argument is a descendant of the DOM element provided by the first argument, whether it is a direct child or nested more deeply. Otherwise, it returns false. Only element nodes are supported; if the second argument is a text or comment node, $.contains() will return false. Note: The first argument must be

Determine if the callbacks list has been locked. callbacks.locked() version added: 1.7 This method does not accept any arguments. Examples: Use callbacks.locked() to determine the lock-st

If this method is called, the default action of the event will not be triggered. For example, clicked anchors will not take the browser to a new URL. We can use event.isDefaultPrevented() to determine if this method has been called by an event handler that was triggered by this event. event.preventDefault() version added: 1.0