api.jquery.comjQuery API Documentation

jQuery jQuery UI jQuery Mobile Sizzle QUnit Plugins Contribute CLA Style Guides Bug Triage Code Documentation Web Sites Events Support Learning Center Chat Stack Overflow Report a bug OpenJS Foundation Join Members jQuery Team Governance Conduct Donate Navigation Download API Documentation Blog Plugins Browser Support jQuery API jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers. If you’re new to jQuery, we recommend that you check out the jQuery Learning Center . If you’re updating to a newer version of jQuery, be sure to read the release notes published on our blog . If you’re coming from a version prior 1.9, you should check out the 1.9EventsEvent Object event.pageY The mouse position relative to the top edge of the document. EventsEvent Object event.preventDefault() If this method is called, the default action of the event will not be triggered. EventsEvent Object event.relatedTarget The other DOM element involved in the event, if any. EventsEvent Object event.result The last value returned by an event handler that was triggered by this event, unless the value was undefined. EventsEvent Object event.stopImmediatePropagation() Keeps the rest of the handlers from being executed and prevents the event from bubbling up the DOM tree. EventsEvent Object event.stopPropagation() Prevents the event from bubbling up the DOM tree, preventing any parent handlers from being notified of the event. EventsEvent Object event.target The DOM element that initiated the event. EventsEvent Object event.timeStamp The difference in milliseconds between the time the browser created the event and January 1, 1970. EventsEvent Object event.type Describes the nature of the event. EventsEvent Object event.which For key or mouse events, this property indicates the specific key or button that was pressed. EffectsFading .fadeIn() Display the matched elements by fading them to opaque. EffectsFading .fadeOut() Hide the matched elements by fading them to transparent. EffectsFading .fadeTo() Adjust the opacity of the matched elements. Effects | EffectsFading .fadeToggle() Display or hide the matched elements by animating their opacity. SelectorsForm | SelectorsjQuery Extensions :file Selector Selects all elements of type file. TraversingFiltering .filter() Reduce the set of matched elements to those that match the selector or pass the function’s test. TraversingTree Traversal .find() Get the descendants of each element in the current set of matched elements, filtered by a selector, jQuery object, or element. EffectsCustom .finish() Stop the currently-running animation, remove all queued animations, and complete all animations for the matched elements. TraversingFiltering .first() Reduce the set of matched elements to the first in the set. SelectorsChild Filter :first-child Selector Selects all elements that are the first child of their parent. SelectorsChild Filter :first-of-type Selector Selects all elements that are the first among siblings of the same element name. SelectorsBasic Filter | DeprecatedDeprecated 3.4 | SelectorsjQuery Extensions :first Selector Selects the first matched DOM element. EventsForm Events | Forms focus event Bind an event handler to the focus” event, or trigger that event on an element. SelectorsBasic Filter | SelectorsForm :focus Selector Selects element if it is currently focused. DeprecatedDeprecated 3.3 | EventsForm Events | Forms .focus() Bind an event handler to the focus” event, or trigger that event on an element. EventsForm Events | Forms focusin event Bind an event handler to the focusin” event, or trigger that event on an element. DeprecatedDeprecated 3.3 | EventsForm Events | Forms .focusin() Bind an event handler to the focusin” event, or trigger that event on an element. EventsForm Events | Forms focusout event Bind an event handler to the focusout” event, or trigger that event on an element. DeprecatedDeprecated 3.3 | EventsForm Events | Forms .focusout() Bind an event handler to the focusout” event, or trigger that event on an element. MiscellaneousDOM Element Methods .get() Retrieve the DOM elements matched by the jQuery object. SelectorsBasic Filter | DeprecatedDeprecated 3.4 | SelectorsjQuery Extensions :gt() Selector Select all elements at an index greater than index within the matched set. TraversingFiltering .has() Reduce the set of matched elements to those that have a descendant that matches the selector or DOM element. SelectorsAttribute Has Attribute Selector [name] Selects elements that have the specified attribute, with any value. SelectorsContent Filter | SelectorsjQuery Extensions :has() Selector Selects elements which contain at least one element that matches the specified selector. Attributes | ManipulationClass Attribute | CSS .hasClass() Determine whether any of the matched elements are assigned the given class. SelectorsBasic Filter | SelectorsjQuery Extensions :header Selector Selects all elements that are headers, like h1, h2, h3 and so on. CSS | Dimensions | ManipulationStyle Properties .height() Get the current computed height for the first element in the set of matched elements or set the height of every matched element. SelectorsjQuery Extensions | SelectorsVisibility Filter :hidden Selector Selects all elements that are hidden. EffectsBasics .hide() Hide the matched elements. DeprecatedDeprecated 3.3 | EventsMouse Events .hover() Bind one or two handlers to the matched elements, to be executed when the mouse pointer enters and leaves the elements. Attributes | ManipulationDOM Insertion, Inside .html() Get the HTML contents of the first element in the set of matched elements or set the HTML contents of every matched element. SelectorsBasic ID Selector (#id”) Selects a single element with the given id attribute. SelectorsForm | SelectorsjQuery Extensions :image Selector Selects all elements of type image. MiscellaneousDOM Element Methods .index() Search for a given element from among the matched elements. CSS | Dimensions | ManipulationStyle Properties .innerHeight() 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. CSS | Dimensions | ManipulationStyle Properties .innerWidth() 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. SelectorsForm | SelectorsjQuery Extensions :input Selector Selects all input, textarea, select and button elements. ManipulationDOM Insertion, Outside .insertAfter() Insert every element in the set of matched elements after the target. ManipulationDOM Insertion, Outside .insertBefore() Insert every element in the set of matched elements before the target. TraversingFiltering .is() 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. Core jQuery() Return a collection of matched elements either found in the DOM based on passed argument(s) or created by passing an HTML string. Internals | PropertiesProperties of jQuery Object Instances .jquery A string containing the jQuery version number. AjaxLow-Level Interface jQuery.ajax() Perform an asynchronous HTTP (Ajax) request. AjaxLow-Level Interface jQuery.ajaxPrefilter() Handle custom Ajax options or modify existing options before each request is sent and before they are processed by $.ajax(). AjaxLow-Level Interface jQuery.ajaxSetup() Set default values for future Ajax requests. Its use is not recommended. AjaxLow-Level Interface jQuery.ajaxTransport() Creates an object that handles the actual transmission of Ajax data. DeprecatedDeprecated 1.3 | Removed | Utilities jQuery.boxModel States if the current...