This document provides a summary of jQuery selectors, manipulation methods, events, AJAX functions, and utilities in 3 sentences or less: jQuery allows selecting elements using CSS selectors, traversing and manipulating the DOM, handling events, making AJAX requests, and extending functionality through plugins. Common tasks include selecting elements by id, class, or other attributes, changing HTML and text contents, binding event handlers for page interactions, and making asynchronous HTTP requests. The cheat sheet also covers animation effects, interactivity helpers, traversing methods for navigating the DOM tree, and various utility functions for working with arrays, objects, and strings.

1. jQuery 1.2 Cheat Sheet v1.0
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CORE SELECTORS MANIPULATION EVENTS AJAX
$(...) The jQuery Function: Basics: Changing Contents: Page Load: Ajax Requests:
jQuery( expr, context )
jQuery #id
Element html( )
String ready( fn )
jQuery jQuery.ajax( options )
XHR
jQuery( html )
jQuery element
Array<Element> html( val )
jQuery Event Handling:
load( url, data, cb )
jQuery
jQuery( elements )
jQuery .class
Array<Element> text( )
String bind( type, data, fn )
jQuery jQuery.get( url, data, cb )
XHR
jQuery( cb )
jQuery *
Array<Element> text( val )
jQuery one( type, data, fn )
jQuery jQuery.getJSON( url, data, cb )
XHR
jQuery Object Accessors: selector1, selectorN
Array<Element> Inserting Inside: trigger( type, data )
jQuery jQuery.getScript( url, cb )
XHR
Hierarchy: append( content )
jQuery triggerHandler( type, data )
jQuery jQuery.post( url, data, cb, type )
XHR
each( cb )
jQuery
ancestor descendant
Array<Element> appendTo( content )
jQuery unbind( type, data )
jQuery Ajax Events:
size( )
Number
parent > child
Array<Element> prepend( content )
jQuery Interaction Helpers:
ajaxComplete( cb )
jQuery
length
Number
prev + next
Array<Element> prependTo( content )
jQuery hover( over, out )
jQuery ajaxError( cb )
jQuery
eq( position )
jQuery
prev ~ siblings
Array<Element> Inserting Outside: toggle( fn, fn )
jQuery ajaxSend( cb )
jQuery
get( )
Array<Element>
Basic Filters: after( content )
jQuery Event Helpers: ajaxStart( cb )
jQuery
get( index )
Element
:first
Element before( content )
jQuery blur( [fn] )
jQuery ajaxStop( cb )
jQuery
index( subject )
Number
:last
Element insertAfter( content )
jQuery change( [fn] )
jQuery ajaxSuccess( cb )
jQuery
Plugins: :not(selector)
Array<Element> insertBefore( content )
jQuery click( [fn] )
jQuery Misc:
jQuery.fn.extend( object )
jQuery :even
Array<Element> Inserting Around: dblclick( [fn] )
jQuery jQuery.ajaxSetup( options )
jQuery.extend( object )
jQuery :odd
Array<Element> wrap( html )
jQuery error( [fn] )
jQuery serialize( )
jQuery
Interoperability: :eq(index)
Element wrap( elem )
jQuery focus( [fn] )
jQuery serializeArray( )
jQuery
jQuery.noConflict( )
jQuery :gt(index)
Array<Element> wrapAll( html )
jQuery keydown( [fn] )
jQuery
jQuery.noConflict( extreme )
jQuery :lt(index)
Array<Element> wrapAll( elem )
jQuery keypress( [fn] )
jQuery UTILITIES
:header
Array<Element> wrapInner( html )
jQuery keyup( [fn] )
jQuery jQuery.browser
Map
ATTRIBUTES :animated
Array<Element> wrapInner( elem )
jQuery load( fn )
jQuery jQuery.browser.version
String
Attr: Content Filters: Replacing: mousedown( fn )
jQuery jQuery.boxModel
Boolean
attr( name )
Object :contains(text)
Array<Element> replaceWith( content )
jQuery mousemove( fn )
jQuery Array and Object operations:
attr( properties )
jQuery :empty
Array<Element> replaceAll( selector )
jQuery mouseout( fn )
jQuery jQuery.each( object, cb )
Object
attr( key, value )
jQuery :has(selector)
Array<Element> Removing: mouseover( fn )
jQuery jQuery.extend( target, obj1, objN )
Object
attr( key, fn )
jQuery :parent
Array<Element> empty( )
jQuery mouseup( fn )
jQuery jQuery.grep( arr, cb, invert )
Array
removeAttr( name )
jQuery Visibility Filters: remove( expr )
jQuery resize( fn )
jQuery jQuery.makeArray( obj )
Array
Class: :hidden
Array<Element> Copying: scroll( fn )
jQuery jQuery.map( arr, cb )
Array
addClass( class )
jQuery :visible
Array<Element> clone( )
jQuery select( [fn] )
jQuery jQuery.inArray( value, arr )
Number
removeClass( class )
jQuery Attribute Filters: clone( true )
jQuery submit( [fn] )
jQuery jQuery.unique( arr )
Array
toggleClass( class )
jQuery [attribute]
Array<Element> unload( fn )
jQuery Test operations:
HTML: [attribute=value]
Array<Element> TRAVERSING jQuery.isFunction( obj )
Boolean
html( )
String [attribute!=value]
Array<Element> Filtering: EFFECTS String operations:
html( val )
jQuery [attribute^=value]
Array<Element> eq( index )
jQuery Basics: jQuery.trim( str )
String
Text: [attribute$=value]
Array<Element> hasClass( class )
Boolean show( [speed, cb] )
jQuery
text( )
String [attribute*=value]
Array<Element> filter( expr )
jQuery hide( [speed, cb] )
jQuery
text( val )
jQuery [selector1][selectorN]
Array<Element> filter( fn )
jQuery toggle( )
jQuery
Value: Child Filters: is( expr )
Boolean Sliding:
val( )
String, Array :nth-child(idx/even/odd/eq)
Array<Element> map( cb )
jQuery slideDown( speed, cb )
jQuery Key:
val( val )
jQuery :first-child
Array<Element> not( expr )
jQuery slideUp( speed, cb )
jQuery cb = callback
val( val )
jQuery :last-child
Array<Element> slice( start, end )
jQuery slideToggle( speed, cb )
jQuery dur = duration
:only-child
Array<Element> Finding: Fading: idx = index
Forms: add( expr )
jQuery fadeIn( speed, cb )
jQuery eq = equation
CSS :input
Array<Element>
CSS: children( expr )
jQuery fadeOut( speed, cb )
jQuery XHR = XmlHTTPRequest
:text
Array<Element> contents( )
jQuery fadeTo( speed, opacity, cb )
jQuery arr = array
css( name )
String
:password
Array<Element> find( expr )
jQuery Custom: [fn] = optional function
css( properties )
jQuery
:radio
Array<Element> next( expr )
jQuery animate( params, dur, easing, cb )
jQuery
css( name, value )
jQuery
:checkbox
Array<Element> nextAll( expr )
jQuery animate( params, options )
jQuery
Positioning:
:submit
Array<Element> parent( expr )
jQuery stop( )
jQuery
offset( )
Object{top,left}
:image
Array<Element> parents( expr )
jQuery queue( )
Array<Function>
Height and Width:
:reset
Array<Element> prev( expr )
jQuery queue( cb )
jQuery
height( )
Integer
:button
Array<Element> prevAll( expr )
jQuery queue( queue )
jQuery
height( val )
jQuery
:file
Array<Element> siblings( expr )
jQuery dequeue( )
jQuery
width( )
Integer
:hidden
Array<Element> Chaining:
width( val )
jQuery
Form Filters: andSelf( )
jQuery
:enabled
Array<Element> end( )
jQuery
:disabled
Array<Element>
:checked
Array<Element>
:selected
Array<Element>