jQuery Reference

The complete jQuery reference guide providing
you all the info you need to learn and understand jQuery

:animated Selector
Selectors
Select all elements that are in the progress of an animation at the time the selector is run.
:button Selector
Selectors
Selects all button elements and elements of type button.
:checkbox Selector
Selectors
Selects all elements of type checkbox.
:checked Selector
Selectors
Matches all elements that are checked or selected.
:contains() Selector
Selectors
Select all elements that contain the specified text.
:disabled Selector
Selectors
Selects all elements that are disabled.
:empty Selector
Selectors
Select all elements that have no children (including text nodes).
:enabled Selector
Selectors
Selects all elements that are enabled.
:eq() Selector
Selectors
Select the element at index n within the matched set.
:even Selector
Selectors
Selects even elements, zero-indexed. See also odd.
:file Selector
Selectors
Selects all elements of type file.
:first Selector
Selectors
Selects the first matched element.
:first-child Selector
Selectors
Selects all elements that are the first child of their parent.
:first-of-type Selector
Selectors
Selects all elements that are the first among siblings of the same element name.
:focus Selector
Selectors
Selects element if it is currently focused.
:gt() Selector
Selectors
Select all elements at an index greater than index within the matched set.
:has() Selector
Selectors
Selects elements which contain at least one element that matches the specified selector.
:header Selector
Selectors
Selects all elements that are headers, like h1, h2, h3 and so on.
:hidden Selector
Selectors
Selects all elements that are hidden.
:image Selector
Selectors
Selects all elements of type image.
:input Selector
Selectors
Selects all input, textarea, select and button elements.
:lang() Selector
Selectors
Selects all elements of the specified language.
:last Selector
Selectors
Selects the last matched element.
:last-child Selector
Selectors
Selects all elements that are the last child of their parent.
:last-of-type Selector
Selectors
Selects all elements that are the last among siblings of the same element name.
:lt() Selector
Selectors
Select all elements at an index less than index within the matched set.
:not() Selector
Selectors
Selects all elements that do not match the given selector.
:nth-child() Selector
Selectors
Selects all elements that are the nth-child of their parent.
:nth-last-child() Selector
Selectors
Selects all elements that are the nth-child of their parent, counting from the last element to the first.
:nth-last-of-type() Selector
Selectors
Selects all the elements that are the nth-child of their parent in relation to siblings with the same element name, counting from the last element to the first.
:nth-of-type() Selector
Selectors
Selects all elements that are the nth child of their parent in relation to siblings with the same element name.
:odd Selector
Selectors
Selects odd elements, zero-indexed. See also even.
:only-child Selector
Selectors
Selects all elements that are the only child of their parent.
:only-of-type Selector
Selectors
Selects all elements that have no siblings with the same element name.
:parent Selector
Selectors
Select all elements that have at least one child node (either an element or text).
:password Selector
Selectors
Selects all elements of type password.
:radio Selector
Selectors
Selects all elements of type radio.
:reset Selector
Selectors
Selects all elements of type reset.
:root Selector
Selectors
Selects the element that is the root of the document.
:selected Selector
Selectors
Selects all elements that are selected.
:submit Selector
Selectors
Selects all elements of type submit.
:target Selector
Selectors
Selects the target element indicated by the fragment identifier of the document’s URI.
:text Selector
Selectors
Selects all input elements of type text.
:visible Selector
Selectors
Selects all elements that are visible.
.add()
Traversing
Create a new jQuery object with elements added to the set of matched elements.
.addBack()
Traversing
Add the previous set of elements on the stack to the current set, optionally filtered by a selector.
.addClass()
Attributes
Adds the specified class(es) to each element in the set of matched elements.
.after()
Manipulation
Insert content, specified by the parameter, after each element in the set of matched elements.
.ajaxComplete()
Ajax
Register a handler to be called when Ajax requests complete. This is an AjaxEvent.
.ajaxError()
Ajax
Register a handler to be called when Ajax requests complete with an error. This is an Ajax Event.
.ajaxSend()
Ajax
Attach a function to be executed before an Ajax request is sent. This is an Ajax Event.
.ajaxStart()
Ajax
Register a handler to be called when the first Ajax request begins. This is an Ajax Event.
.ajaxStop()
Ajax
Register a handler to be called when all Ajax requests have completed. This is an Ajax Event.
.ajaxSuccess()
Ajax
Attach a function to be executed whenever an Ajax request completes successfully. This is an Ajax Event.
.andSelf()
Deprecated
Add the previous set of elements on the stack to the current set.
.animate()
Effects
Perform a custom animation of a set of CSS properties.
.append()
Manipulation
Insert content, specified by the parameter, to the end of each element in the set of matched elements.
.appendTo()
Manipulation
Insert every element in the set of matched elements to the end of the target.
.attr()
Attributes
Get the value of an attribute for the first element in the set of matched elements or set one or more attributes for every matched element.
.before()
Manipulation
Insert content, specified by the parameter, before each element in the set of matched elements.
.bind()
Events
Attach a handler to an event for the elements.
.blur()
Events
Bind an event handler to the “blur” JavaScript event, or trigger that event on an element.
.change()
Events
Bind an event handler to the “change” JavaScript event, or trigger that event on an element.
.children()
Traversing
Get the children of each element in the set of matched elements, optionally filtered by a selector.
.clearQueue()
Effects
Remove from the queue all items that have not yet been run.
.click()
Events
Bind an event handler to the “click” JavaScript event, or trigger that event on an element.
.clone()
Manipulation
Create a deep copy of the set of matched elements.
.closest()
Traversing
For each element in the set, get the first element that matches the selector by testing the element itself and traversing up through its ancestors in the DOM tree.
.contents()
Traversing
Get the children of each element in the set of matched elements, including text and comment nodes.
.context
Deprecated
The DOM node context originally passed to jQuery(); if none was passed then context will likely be the document.
.contextmenu()
Events
Bind an event handler to the “contextmenu” JavaScript event, or trigger that event on an element.
.css()
CSS
Get the value of a computed style property for the first element in the set of matched elements or set one or more CSS properties for every matched element.
.data()
Data
Store arbitrary data associated with the matched elements or return the value at the named data store for the first element in the set of matched elements.
.dblclick()
Events
Bind an event handler to the “dblclick” JavaScript event, or trigger that event on an element.
.delay()
Effects
Set a timer to delay execution of subsequent items in the queue.
.delegate()
Events
Attach a handler to one or more events for all elements that match the selector, now or in the future, based on a specific set of root elements.
.dequeue()
Effects
Execute the next function on the queue for the matched elements.
.detach()
Manipulation
Remove the set of matched elements from the DOM.
.die()
Deprecated
Remove event handlers previously attached using .live() from the elements.
.each()
Miscellaneous
Iterate over a jQuery object, executing a function for each matched element.
.empty()
Manipulation
Remove all child nodes of the set of matched elements from the DOM.
.end()
Traversing
End the most recent filtering operation in the current chain and return the set of matched elements to its previous state.
.eq()
Traversing
Reduce the set of matched elements to the one at the specified index.
.error()
Events
Bind an event handler to the “error” JavaScript event.
.fadeIn()
Effects
Display the matched elements by fading them to opaque.
.fadeOut()
Effects
Hide the matched elements by fading them to transparent.
.fadeTo()
Effects
Adjust the opacity of the matched elements.
.fadeToggle()
Effects
Display or hide the matched elements by animating their opacity.
.filter()
Traversing
Reduce the set of matched elements to those that match the selector or pass the function’s test.
.find()
Traversing
Get the descendants of each element in the current set of matched elements, filtered by a selector, jQuery object, or element.
.finish()
Effects
Stop the currently-running animation, remove all queued animations, and complete all animations for the matched elements.
.first()
Traversing
Reduce the set of matched elements to the first in the set.
.focus()
Events
Bind an event handler to the “focus” JavaScript event, or trigger that event on an element.
.focusin()
Events
Bind an event handler to the “focusin” event.
.focusout()
Events
Bind an event handler to the “focusout” JavaScript event.
.get()
Miscellaneous
Retrieve the DOM elements matched by the jQuery object.
.has()
Traversing
Reduce the set of matched elements to those that have a descendant that matches the selector or DOM element.
.hasClass()
Attributes
Determine whether any of the matched elements are assigned the given class.
.height()
CSS
Get the current computed height for the first element in the set of matched elements or set the height of every matched element.
.hide()
Effects
Hide the matched elements.
.hover()
Events
Bind one or two handlers to the matched elements, to be executed when the mouse pointer enters and leaves the elements.
.html()
Attributes
Get the HTML contents of the first element in the set of matched elements or set the HTML contents of every matched element.
.index()
Miscellaneous
Search for a given element from among the matched elements.
.innerHeight()
CSS
Get the current computed inner height (including padding but not border) for the first element in the set of matched elements or set the inner height of every matched element.
.innerWidth()
CSS
Get the current computed inner width (including padding but not border) for the first element in the set of matched elements or set the inner width of every matched element.
.insertAfter()
Manipulation
Insert every element in the set of matched elements after the target.
.insertBefore()
Manipulation
Insert every element in the set of matched elements before the target.
.is()
Traversing
Check the current matched set of elements against a selector, element, or jQuery object and return true if at least one of these elements matches the given arguments.
.jquery
Internals
A string containing the jQuery version number.
.keydown()
Events
Bind an event handler to the “keydown” JavaScript event, or trigger that event on an element.
.keypress()
Events
Bind an event handler to the “keypress” JavaScript event, or trigger that event on an element.
.keyup()
Events
Bind an event handler to the “keyup” JavaScript event, or trigger that event on an element.
.last()
Traversing
Reduce the set of matched elements to the final one in the set.
.length
Properties
The number of elements in the jQuery object.
.live()
Deprecated
Attach an event handler for all elements which match the current selector, now and in the future.
.load()
Deprecated
Load data from the server and place the returned HTML into the matched element.
.map()
Traversing
Pass each element in the current matched set through a function, producing a new jQuery object containing the return values.
.mousedown()
Events
Bind an event handler to the “mousedown” JavaScript event, or trigger that event on an element.
.mouseenter()
Events
Bind an event handler to be fired when the mouse enters an element, or trigger that handler on an element.
.mouseleave()
Events
Bind an event handler to be fired when the mouse leaves an element, or trigger that handler on an element.
.mousemove()
Events
Bind an event handler to the “mousemove” JavaScript event, or trigger that event on an element.
.mouseout()
Events
Bind an event handler to the “mouseout” JavaScript event, or trigger that event on an element.
.mouseover()
Events
Bind an event handler to the “mouseover” JavaScript event, or trigger that event on an element.
.mouseup()
Events
Bind an event handler to the “mouseup” JavaScript event, or trigger that event on an element.
.next()
Traversing
Get the immediately following sibling of each element in the set of matched elements. If a selector is provided, it retrieves the next sibling only if it matches that selector.
.nextAll()
Traversing
Get all following siblings of each element in the set of matched elements, optionally filtered by a selector.
.nextUntil()
Traversing
Get all following siblings of each element up to but not including the element matched by the selector, DOM node, or jQuery object passed.
.not()
Traversing
Remove elements from the set of matched elements.
.off()
Events
Remove an event handler.
.offset()
CSS
Get the current coordinates of the first element, or set the coordinates of every element, in the set of matched elements, relative to the document.
.offsetParent()
Offset
Get the closest ancestor element that is positioned.
.on()
Events
Attach an event handler function for one or more events to the selected elements.
.one()
Events
Attach a handler to an event for the elements. The handler is executed at most once per element per event type.
.outerHeight()
CSS
Get the current computed height for the first element in the set of matched elements, including padding, border, and optionally margin. Returns a number (without “px”) representation of the value or null if called on an empty set of elements.
.outerWidth()
CSS
Get the current computed width for the first element in the set of matched elements, including padding and border.
.parent()
Traversing
Get the parent of each element in the current set of matched elements, optionally filtered by a selector.
.parents()
Traversing
Get the ancestors of each element in the current set of matched elements, optionally filtered by a selector.
.parentsUntil()
Traversing
Get the ancestors of each element in the current set of matched elements, up to but not including the element matched by the selector, DOM node, or jQuery object.
.position()
CSS
Get the current coordinates of the first element in the set of matched elements, relative to the offset parent.
.prepend()
Manipulation
Insert content, specified by the parameter, to the beginning of each element in the set of matched elements.
.prependTo()
Manipulation
Insert every element in the set of matched elements to the beginning of the target.
.prev()
Traversing
Get the immediately preceding sibling of each element in the set of matched elements, optionally filtered by a selector.
.prevAll()
Traversing
Get all preceding siblings of each element in the set of matched elements, optionally filtered by a selector.
.prevUntil()
Traversing
Get all preceding siblings of each element up to but not including the element matched by the selector, DOM node, or jQuery object.
.promise()
Deferred Object
Return a Promise object to observe when all actions of a certain type bound to the collection, queued or not, have finished.
.prop()
Attributes
Get the value of a property for the first element in the set of matched elements or set one or more properties for every matched element.
.pushStack()
Internals
Add a collection of DOM elements onto the jQuery stack.
.queue()
Effects
Show or manipulate the queue of functions to be executed on the matched elements.
.ready()
Events
Specify a function to execute when the DOM is fully loaded.
.remove()
Manipulation
Remove the set of matched elements from the DOM.
.removeAttr()
Attributes
Remove an attribute from each element in the set of matched elements.
.removeClass()
Attributes
Remove a single class, multiple classes, or all classes from each element in the set of matched elements.
.removeData()
Data
Remove a previously-stored piece of data.
.removeProp()
Attributes
Remove a property for the set of matched elements.
.replaceAll()
Manipulation
Replace each target element with the set of matched elements.
.replaceWith()
Manipulation
Replace each element in the set of matched elements with the provided new content and return the set of elements that was removed.
.resize()
Events
Bind an event handler to the “resize” JavaScript event, or trigger that event on an element.
.scroll()
Events
Bind an event handler to the “scroll” JavaScript event, or trigger that event on an element.
.scrollLeft()
CSS
Get the current horizontal position of the scroll bar for the first element in the set of matched elements or set the horizontal position of the scroll bar for every matched element.
.scrollTop()
CSS
Get the current vertical position of the scroll bar for the first element in the set of matched elements or set the vertical position of the scroll bar for every matched element.
.select()
Events
Bind an event handler to the “select” JavaScript event, or trigger that event on an element.
.selector
Deprecated
A selector representing selector passed to jQuery(), if any, when creating the original set.
.serialize()
Forms
Encode a set of form elements as a string for submission.
.serializeArray()
Forms
Encode a set of form elements as an array of names and values.
.show()
Effects
Display the matched elements.
.siblings()
Traversing
Get the siblings of each element in the set of matched elements, optionally filtered by a selector.
.size()
Deprecated
Return the number of elements in the jQuery object.
.slice()
Traversing
Reduce the set of matched elements to a subset specified by a range of indices.
.slideDown()
Effects
Display the matched elements with a sliding motion.
.slideToggle()
Effects
Display or hide the matched elements with a sliding motion.
.slideUp()
Effects
Hide the matched elements with a sliding motion.
.stop()
Effects
Stop the currently-running animation on the matched elements.
.submit()
Events
Bind an event handler to the “submit” JavaScript event, or trigger that event on an element.
.text()
Manipulation
Get the combined text contents of each element in the set of matched elements, including their descendants, or set the text contents of the matched elements.
.toArray()
Miscellaneous
Retrieve all the elements contained in the jQuery set, as an array.
.toggle()
Deprecated
Display or hide the matched elements.
.toggleClass()
Attributes
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 state argument.
.trigger()
Events
Execute all handlers and behaviors attached to the matched elements for the given event type.
.triggerHandler()
Events
Execute all handlers attached to an element for an event.
.unbind()
Events
Remove a previously-attached event handler from the elements.
.undelegate()
Events
Remove a handler from the event for all elements which match the current selector, based upon a specific set of root elements.
.unload()
Deprecated
Bind an event handler to the “unload” JavaScript event.
.unwrap()
Manipulation
Remove the parents of the set of matched elements from the DOM, leaving the matched elements in their place.
.val()
Attributes
Get the current value of the first element in the set of matched elements or set the value of every matched element.
.width()
CSS
Get the current computed width for the first element in the set of matched elements or set the width of every matched element.
.wrap()
Manipulation
Wrap an HTML structure around each element in the set of matched elements.
.wrapAll()
Manipulation
Wrap an HTML structure around all elements in the set of matched elements.
.wrapInner()
Manipulation
Wrap an HTML structure around the content of each element in the set of matched elements.
All Selector (“*”)
Selectors
Selects all elements.
Attribute Contains Prefix Selector [name|=”value”]
Selectors
Selects elements that have the specified attribute with a value either equal to a given string or starting with that string followed by a hyphen (-).
Attribute Contains Selector [name*=”value”]
Selectors
Selects elements that have the specified attribute with a value containing a given substring.
Attribute Contains Word Selector [name~=”value”]
Selectors
Selects elements that have the specified attribute with a value containing a given word, delimited by spaces.
Attribute Ends With Selector [name$=”value”]
Selectors
Selects elements that have the specified attribute with a value ending exactly with a given string. The comparison is case sensitive.
Attribute Equals Selector [name=”value”]
Selectors
Selects elements that have the specified attribute with a value exactly equal to a certain value.
Attribute Not Equal Selector [name!=”value”]
Selectors
Select elements that either don’t have the specified attribute, or do have the specified attribute but not with a certain value.
Attribute Starts With Selector [name^=”value”]
Selectors
Selects elements that have the specified attribute with a value beginning exactly with a given string.
callbacks.add()
Callbacks Object
Add a callback or a collection of callbacks to a callback list.
callbacks.disable()
Callbacks Object
Disable a callback list from doing anything more.
callbacks.disabled()
Callbacks Object
Determine if the callbacks list has been disabled.
callbacks.empty()
Callbacks Object
Remove all of the callbacks from a list.
callbacks.fire()
Callbacks Object
Call all of the callbacks with the given arguments.
callbacks.fired()
Callbacks Object
Determine if the callbacks have already been called at least once.
callbacks.fireWith()
Callbacks Object
Call all callbacks in a list with the given context and arguments.
callbacks.has()
Callbacks Object
Determine whether or not the list has any callbacks attached. If a callback is provided as an argument, determine whether it is in a list.
callbacks.lock()
Callbacks Object
Lock a callback list in its current state.
callbacks.locked()
Callbacks Object
Determine if the callbacks list has been locked.
callbacks.remove()
Callbacks Object
Remove a callback or a collection of callbacks from a callback list.
Child Selector (“parent > child”)
Selectors
Selects all direct child elements specified by “child” of elements specified by “parent”.
Class Selector (“.class”)
Selectors
Selects all elements with the given class.
deferred.always()
Deferred Object
Add handlers to be called when the Deferred object is either resolved or rejected.
deferred.done()
Deferred Object
Add handlers to be called when the Deferred object is resolved.
deferred.fail()
Deferred Object
Add handlers to be called when the Deferred object is rejected.
deferred.isRejected()
Deferred Object
Determine whether a Deferred object has been rejected.
deferred.isResolved()
Deferred Object
Determine whether a Deferred object has been resolved.
deferred.notify()
Deferred Object
Call the progressCallbacks on a Deferred object with the given args.
deferred.notifyWith()
Deferred Object
Call the progressCallbacks on a Deferred object with the given context and args.
deferred.pipe()
Deferred Object
Utility method to filter and/or chain Deferreds.
deferred.progress()
Deferred Object
Add handlers to be called when the Deferred object generates progress notifications.
deferred.promise()
Deferred Object
Return a Deferred’s Promise object.
deferred.reject()
Deferred Object
Reject a Deferred object and call any failCallbacks with the given args.
deferred.rejectWith()
Deferred Object
Reject a Deferred object and call any failCallbacks with the given context and args.
deferred.resolve()
Deferred Object
Resolve a Deferred object and call any doneCallbacks with the given args.
deferred.resolveWith()
Deferred Object
Resolve a Deferred object and call any doneCallbacks with the given context and args.
deferred.state()
Deferred Object
Determine the current state of a Deferred object.
deferred.then()
Deferred Object
Add handlers to be called when the Deferred object is resolved, rejected, or still in progress.
Descendant Selector (“ancestor descendant”)
Selectors
Selects all elements that are descendants of a given ancestor.
Element Selector (“element”)
Selectors
Selects all elements with the given tag name.
event.currentTarget
Events
The current DOM element within the event bubbling phase.
event.data
Events
An optional object of data passed to an event method when the current executing handler is bound.
event.delegateTarget
Events
The element where the currently-called jQuery event handler was attached.
event.isDefaultPrevented()
Events
Returns whether event.preventDefault() was ever called on this event object.
event.isImmediatePropagationStopped()
Events
Returns whether event.stopImmediatePropagation() was ever called on this event object.
event.isPropagationStopped()
Events
Returns whether event.stopPropagation() was ever called on this event object.
event.metaKey
Events
Indicates whether the META key was pressed when the event fired.
event.namespace
Events
The namespace specified when the event was triggered.
event.pageX
Events
The mouse position relative to the left edge of the document.
event.pageY
Events
The mouse position relative to the top edge of the document.
event.preventDefault()
Events
If this method is called, the default action of the event will not be triggered.
event.relatedTarget
Events
The other DOM element involved in the event, if any.
event.result
Events
The last value returned by an event handler that was triggered by this event, unless the value was undefined.
event.stopImmediatePropagation()
Events
Keeps the rest of the handlers from being executed and prevents the event from bubbling up the DOM tree.
event.stopPropagation()
Events
Prevents the event from bubbling up the DOM tree, preventing any parent handlers from being notified of the event.
event.target
Events
The DOM element that initiated the event.
event.timeStamp
Events
The difference in milliseconds between the time the browser created the event and January 1, 1970.
event.type
Events
Describes the nature of the event.
event.which
Events
For key or mouse events, this property indicates the specific key or button that was pressed.
Has Attribute Selector [name]
Selectors
Selects elements that have the specified attribute, with any value.
ID Selector (“#id”)
Selectors
Selects a single element with the given id attribute.
jQuery.ajax()
Ajax
Perform an asynchronous HTTP (Ajax) request.
jQuery.ajaxPrefilter()
Ajax
Handle custom Ajax options or modify existing options before each request is sent and before they are processed by $.ajax().
jQuery.ajaxSetup()
Ajax
Set default values for future Ajax requests. Its use is not recommended.
jQuery.ajaxTransport()
Ajax
Creates an object that handles the actual transmission of Ajax data.
jQuery.boxModel
Deprecated
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
Removed
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.browser
Deprecated
Contains flags for the useragent, read from navigator.userAgent. This property was removed in jQuery 1.9 and is available only through the jQuery.migrate plugin. Please try to use feature detection instead.
jQuery.browser
Properties
Contains flags for the useragent, read from navigator.userAgent. This property was removed in jQuery 1.9 and is available only through the jQuery.migrate plugin. Please try to use feature detection instead.
jQuery.Callbacks()
Callbacks Object
A multi-purpose callbacks list object that provides a powerful way to manage callback lists.
jQuery.contains()
Utilities
Check to see if a DOM element is a descendant of another DOM element.
jQuery.cssHooks
CSS
Hook directly into jQuery to override how particular CSS properties are retrieved or set, normalize CSS property naming, or create custom properties.
jQuery.cssNumber
CSS
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.
jQuery.data()
Data
Store arbitrary data associated with the specified element and/or return the value that was set.
jQuery.Deferred()
Deferred Object
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.
jQuery.dequeue()
Data
Execute the next function on the queue for the matched element.
jQuery.each()
Utilities
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.
jQuery.error()
Internals
Takes a string and throws an exception containing it.
jQuery.extend()
Utilities
Merge the contents of two or more objects together into the first object.
jQuery.fn.extend()
Utilities
Merge the contents of an object onto the jQuery prototype to provide new jQuery instance methods.
jQuery.fx.interval
Effects
The rate (in milliseconds) at which animations fire.
jQuery.fx.off
Effects
Globally disable all animations.
jQuery.get()
Ajax
Load data from the server using a HTTP GET request.
jQuery.getJSON()
Ajax
Load JSON-encoded data from the server using a GET HTTP request.
jQuery.getScript()
Ajax
Load a JavaScript file from the server using a GET HTTP request, then execute it.
jQuery.globalEval()
Utilities
Execute some JavaScript code globally.
jQuery.grep()
Utilities
Finds the elements of an array which satisfy a filter function. The original array is not affected.
jQuery.hasData()
Data
Determine whether an element has any jQuery data associated with it.
jQuery.holdReady()
Core
Holds or releases the execution of jQuery’s ready event.
jQuery.inArray()
Utilities
Search for a specified value within an array and return its index (or -1 if not found).
jQuery.isArray()
Utilities
Determine whether the argument is an array.
jQuery.isEmptyObject()
Utilities
Check to see if an object is empty (contains no enumerable properties).
jQuery.isFunction()
Utilities
Determine if the argument passed is a JavaScript function object.
jQuery.isNumeric()
Utilities
Determines whether its argument is a number.
jQuery.isPlainObject()
Utilities
Check to see if an object is a plain object (created using “{}” or “new Object”).
jQuery.isWindow()
Utilities
Determine whether the argument is a window.
jQuery.isXMLDoc()
Utilities
Check to see if a DOM node is within an XML document (or is an XML document).
jQuery.makeArray()
Utilities
Convert an array-like object into a true JavaScript array.
jQuery.map()
Utilities
Translate all items in an array or object to new array of items.
jQuery.merge()
Utilities
Merge the contents of two arrays together into the first array.
jQuery.noConflict()
Core
Relinquish jQuery’s control of the $ variable.
jQuery.noop()
Utilities
An empty function.
jQuery.now()
Utilities
Return a number representing the current time.
jQuery.param()
Miscellaneous
Create a serialized representation of an array, a plain object, or a jQuery object suitable for use in a URL query string or Ajax request. In case a jQuery object is passed, it should contain input elements with name/value properties.
jQuery.parseHTML()
Utilities
Parses a string into an array of DOM nodes.
jQuery.parseJSON()
Utilities
Takes a well-formed JSON string and returns the resulting JavaScript value.
jQuery.parseXML()
Utilities
Parses a string into an XML document.
jQuery.post()
Ajax
Load data from the server using a HTTP POST request.
jQuery.proxy()
Events
Takes a function and returns a new one that will always have a particular context.
jQuery.queue()
Data
Show or manipulate the queue of functions to be executed on the matched element.
jQuery.removeData()
Data
Remove a previously-stored piece of data.
jQuery.sub()
Core
Creates a new copy of jQuery whose properties and methods can be modified without affecting the original jQuery object.
jQuery.support
Deprecated
A collection of properties that represent the presence of different browser features or bugs. Intended for jQuery’s internal use; specific properties may be removed when they are no longer needed internally to improve page startup performance. For your own project’s feature-detection needs, we strongly recommend the use of an external library such as Modernizr instead of dependency on properties in jQuery.support.
jQuery.trim()
Utilities
Remove the whitespace from the beginning and end of a string.
jQuery.type()
Utilities
Determine the internal JavaScript [[Class]] of an object.
jQuery.unique()
Utilities
Sorts an array of DOM elements, in place, with the duplicates removed. Note that this only works on arrays of DOM elements, not strings or numbers.
jQuery.when()
Core
Provides a way to execute callback functions based on one or more objects, usually Deferred objects that represent asynchronous events.
jQuery()
Core
Return a collection of matched elements either found in the DOM based on passed argument(s) or created by passing an HTML string.
Multiple Attribute Selector [name=”value”][name2=”value2″]
Selectors
Matches elements that match all of the specified attribute filters.
Multiple Selector (“selector1, selector2, selectorN”)
Selectors
Selects the combined results of all the specified selectors.
Next Adjacent Selector (“prev + next”)
Selectors
Selects all next elements matching “next” that are immediately preceded by a sibling “prev”.
Next Siblings Selector (“prev ~ siblings”)
Selectors
Selects all sibling elements that follow after the “prev” element, have the same parent, and match the filtering “siblings” selector.

jQuery Reference

:animated Selector

:button Selector

:checkbox Selector

:checked Selector

:contains() Selector

:disabled Selector

:empty Selector

:enabled Selector

:eq() Selector

:even Selector

:file Selector

:first Selector

:first-child Selector

:first-of-type Selector

:focus Selector

:gt() Selector

:has() Selector

:header Selector

:hidden Selector

:image Selector

:input Selector

:lang() Selector

:last Selector

:last-child Selector

:last-of-type Selector

:lt() Selector

:not() Selector

:nth-child() Selector

:nth-last-child() Selector

:nth-last-of-type() Selector

:nth-of-type() Selector

:odd Selector

:only-child Selector

:only-of-type Selector

:parent Selector

:password Selector

:radio Selector

:reset Selector

:root Selector

:selected Selector

:submit Selector

:target Selector

:text Selector

:visible Selector

.add()

.addBack()

.addClass()

.after()

.ajaxComplete()

.ajaxError()

.ajaxSend()

.ajaxStart()

.ajaxStop()

.ajaxSuccess()

.andSelf()

.animate()

.append()

.appendTo()

.attr()

.before()

.bind()

.blur()

.change()

.children()

.clearQueue()

.click()

.clone()

.closest()

.contents()

.context

.contextmenu()

.css()

.data()

.dblclick()

.delay()

.delegate()

.dequeue()

.detach()

.die()