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Tools
Linear Gradients Custom MenuHosting
Types
StringNumberBooleanObjectOptionsArrayMapFunctionCallbackSelectorEventElementjQueryMIMEXMLHttpRequestDeferredjqXHR Promise
jQuery CSS
CSS
css()
Positioning
offset()position()scrollTop()scrollLeft()
Height and Width
height()width()innerHeight()innerWidth()outerHeight()outerWidth()
Ajax
Global Ajax Event Handlers
Ajax EventsajaxComplete()ajaxError()ajaxSend()ajaxStart()ajaxStop()ajaxSuccess()
Helper Functions
jQuery.param()serialize() serializeArray()
Low-Level Interface
jQuery.ajax()jQuery.ajaxSetup()
Shorthand Methods
jQuery.get()jQuery.getJSON()jQuery.getScript()load()jQuery.post()
Ajax Event Objects
event.preventDefault()event.stopPropagation()event.targetevent.typeevent.pageXevent.pageYevent.dataevent.whichevent.relatedTargetevent.timeStampevent.currentTargetevent.isDefaultPrevented()event.isImmediatePropagationStopped()event.isPropagationStopped()event.resultevent.stopImmediatePropagation()event.namespace
Plugin Authoring
jQuery.pushStack()jQuery.error
Core
$(…) jQuery Function
jQueryjQuery.holdReady()
Access to jQuery object
each()size()lengthselectorcontextget()index()data()removeData()clearQueue()queue()dequeue()toArray()jQuery.sub()jQuery.when()jQuery.hasData()
Compatibility
jQuery.noConflict()
jQuery Version
Version 1.6Version 1.5.1Version 1.5Version 1.4.4Version 1.4.3Version 1.4.2Version 1.4.1Version 1.4Version 1.3Version 1.2.6Version 1.2.3Version 1.2Version 1.1.4Version 1.1.3Version 1.1.2Version 1.1Version 1.0.4Version 1.0
Traversing jQuery
Filtering
eq()filter()is()map()not()slice()first()has()last()
Finding
add()children()closest()contents()find()next()nextAll()offsetParent()parent()parents()prev()prevAll()siblings()nextUntil()parentsUntil()prevUntil()
Chaining
andSelf()end()
jQuery Examples
jQuery ExamplesNavigation
Deferred Object
deferred.done()deferred.fail()deferred.isRejected()deferred.isResolved()deferred.promise()deferred.reject()deferred.rejectWith()deferred.resolve()deferred.resolveWith()deferred.then()deferred.always()deferred.pipe()promise()
Browsers
Browser InformationBrowser StatisticsOS Platform StatisticsBrowser Display StatisticsBrowser ExplorerBrowser NetscapeProject MozillaBrowser FirefoxBrowser OperaBrowser ChromeBrowser Safari Mobile Browser
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Xhtml.co.il Check Spelling
Orphus system
jQuery Basic
jQueryjQuery IntroductionHistory of jQueryPhilosophy of jQueryFunction jQuery $jQuery Methods$(document).ready()FAQ
jQuery Events
Page Load
ready()
Event Handling
bind()one()trigger()triggerHandler()unbind()delegate()undelegate()
Live Events
live()die()
Interaction Helpers
hover()
Event Helpers
blur()change()click() dblclick()error()focus()focusin()focusout()keydown()keypress()keyup()load()mousedown()mouseenter()mouseleave()mousemove()mouseout()mouseover()mouseup()resize()scroll()select()submit()unload()
jQuery Utilities
Browser and Feature Detection
jQuery.supportjQuery.browserjQuery.boxModel
Array and Object operations
jQuery.contains()jQuery.data()jQuery.each()jQuery.dequeue()jQuery.globalEval()jQuery.extend()jQuery.extend( deep, target, ...)jQuery.grep()jQuery.makeArray()jQuery.map()jQuery.inArray()jQuery.merge()jQuery.proxy()jQuery.queue()jQuery.removeData()jQuery.unique()jQuery.type()
Test operations
jQuery.isArray()jQuery.isFunction()jQuery.isEmptyObject()jQuery.isPlainObject()jQuery.isXMLDoc()jQuery.isWindow()
String operations
jQuery.trim()jQuery.parseJSON( json )jQuery.parseXML()
URLs
jQuery.param( obj )jQuery.noop()
jQuery Attributes
Attr
attr()removeAttr()
Class
addClass()hasClass()removeClass()toggleClass()
HTML
html()
Text
text()
Value
val()
Manipulation
prop()removeProp()
jQuery Effects
Basics
show()hide()toggle()
Sliding
slideDown()slideUp()slideToggle()
Fading
fadeIn()fadeOut()fadeTo()fadeToggle()
Custom
animate()stop()delay()
Settings
jQuery.fx.offjQuery.fx.interval
jQuery Manipulation
Inserting Inside
append()appendTo()prepend()prependTo()
Inserting Outside
after()before()insertAfter()insertBefore()
Inserting Around
wrap()wrapAll()wrapInner()unwrap()
Replacing
replaceWith()replaceAll()
Removing
empty()remove()detach()
Copying
clone()
jQuery Selectors
Basics
id selectorelement selectorclass selectorall selectormultiple selector
Hierarchy
ancestor descendantparent > childprev + nextprev ~ siblings
Basic Filters
:first:last:not(selector):even:odd:eq(index):gt(index):lt(index):header:animated:focus selector
Content Filters
:contains(text):empty:has(selector):parent
Visibility Filters
:hidden:visible
Attribute Filters
[attribute][attribute|=value] [attribute~=value][attribute=value][attribute!=value][attribute^=value][attribute$=value][attribute*=value][attributeFilter1][attributeFilterN]
Child Filters
:nth-child(index/even/odd/equation):first-child:last-child:only-child
Forms
:input:text:password:radio:checkbox:submit:image:reset:button:file
Form Filters
:enabled:disabled:checked:selected

Boolean

A boolean in JavaScript can be either true or false: 
 if ( true ) console.log("always!")
 if ( false ) console.log("never!")

When an option is specified as a boolean, it often looks like this: 

$("...").somePlugin({
  hideOnStartup: true,
  onlyOnce: false
});
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