package js.html

..
audio
compat
idb
rtc
svg
webgl
AlignSetting

AnchorElement

The HTMLAnchorElement interface represents hyperlink elements and provides special properties and methods (beyond those of the regular HTMLElement object interface they also have available to them by inheritance) for manipulating the layout and presentation of such elements.

Animation

The Animation interface of the Web Animations API represents a single animation player and provides playback controls and a timeline for an animation node or source.

AnimationEffectReadOnly

The AnimationEffectReadOnly interface of the Web Animations API defines current and future animation effects like KeyframeEffect, which can be passed to Animation objects for playing, and KeyframeEffectReadOnly (which is used by CSS Animations and Transitions).

AnimationEffectTiming

The AnimationEffectTiming interface of the Web Animations API is comprised of timing properties. It is returned by the timing attribute of a KeyframeEffect.

AnimationEffectTimingProperties

AnimationEffectTimingReadOnly

The AnimationEffectTimingReadOnly interface of the Web Animations API is comprised of timing properties.

AnimationEvent

The AnimationEvent interface represents events providing information related to animations.

AnimationEventInit

AnimationPlayState

AnimationTimeline

The AnimationTimeline interface of the Web Animations API represents the timeline of an animation. This interface exists to define timeline features (inherited by DocumentTimeline and future timeline types) and is not itself directly used by developers. Anywhere you see AnimationTimeline, you should use DocumentTimeline or any other timeline type instead.

AppletElement

ApplicationCache

AreaElement

The HTMLAreaElement interface provides special properties and methods (beyond those of the regular object HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of area elements.

ArrayBuffer

ArrayBufferView

ArrayBufferView is a helper type representing any of the following JavaScript TypedArray types:

Attr

This type represents a DOM element's attribute as an object. In most DOM methods, you will probably directly retrieve the attribute as a string (e.g., Element.getAttribute(), but certain functions (e.g., Element.getAttributeNode()) or means of iterating give Attr types.

Audio

AudioChannel

AudioContextState

AudioElement

The HTMLAudioElement interface provides access to the properties of audio elements, as well as methods to manipulate them. It derives from the HTMLMediaElement interface.

AudioStreamTrack

AudioTrack

AudioTrackList

BRElement

The HTMLBRElement interface represents a HTML line break element (br). It inherits from HTMLElement.

BarProp

BaseElement

The HTMLBaseElement interface contains the base URI for a document. This object inherits all of the properties and methods as described in the HTMLElement interface.

BatteryManager

The BatteryManager interface provides ways to get information about the system's battery charge level.

BeforeUnloadEvent

The beforeunload event is fired when the window, the document and its resources are about to be unloaded.

BinaryType

Blob

A Blob object represents a file-like object of immutable, raw data. Blobs represent data that isn't necessarily in a JavaScript-native format. The File interface is based on Blob, inheriting blob functionality and expanding it to support files on the user's system.

BlobPropertyBag

BodyElement

The HTMLBodyElement interface provides special properties (beyond those of the regular HTMLElement interface they also inherit) for manipulating body elements.

BroadcastChannel

The BroadcastChannel interface represents a named channel that any browsing context of a given origin can subscribe to. It allows communication between different documents (in different windows, tabs, frames or iframes) of the same origin. Messages are broadcasted via a message event fired at all BroadcastChannel objects listening to the channel.

ButtonElement

The HTMLButtonElement interface provides properties and methods (beyond the button object interface it also has available to them by inheritance) for manipulating the layout and presentation of button elements.

CDATASection

The CDATASection interface represents a CDATA section that can be used within XML to include extended portions of unescaped text, such that the symbols and & do not need escaping as they normally do within XML when used as text.

CSS

The CSS interface holds useful CSS-related methods. No object with this interface are implemented: it contains only static methods and therefore is a utilitarian interface.

CSSAnimation

CSSCharsetRule

CSSFontFaceRule

CSSImportRule

CSSMediaRule

The CSSMediaRule is an interface representing a single CSS @media rule. It implements the CSSConditionRule interface, and therefore the CSSGroupingRule and the CSSRule interface with a type value of 4 (CSSRule.MEDIA_RULE).

CSSPageRule

CSSPageRule is an interface representing a single CSS @page rule. It implements the CSSRule interface with a type value of 6 (CSSRule.PAGE_RULE).

CSSPrimitiveValue

The CSSPrimitiveValue interface derives from the CSSValue interface and represents the current computed value of a CSS property.

CSSPseudoElement

CSSRule

The CSSRule interface represents a single CSS rule. There are several types of rules, listed in the Type constants section below.

CSSRuleList

A CSSRuleList is an (indirect-modify only) array-like object containing an ordered collection of CSSRule objects.

CSSStyleDeclaration

CSSStyleDeclaration represents a collection of CSS property-value pairs. It is used in a few APIs:

CSSStyleRule

CSSStyleRule represents a single CSS style rule. It implements the CSSRule interface with a type value of 1 (CSSRule.STYLE_RULE).

CSSStyleSheet

The CSSStyleSheet interface represents a single CSS style sheet. It inherits properties and methods from its parent, StyleSheet.

CSSTransition

CSSUnknownRule

CSSValue

The CSSValue interface represents the current computed value of a CSS property.

CSSValueList

The CSSValueList interface derives from the CSSValue interface and provides the abstraction of an ordered collection of CSS values.

CanvasElement

The HTMLCanvasElement interface provides properties and methods for manipulating the layout and presentation of canvas elements. The HTMLCanvasElement interface also inherits the properties and methods of the HTMLElement interface.

CanvasGradient

The CanvasGradient interface represents an opaque object describing a gradient. It is returned by the methods CanvasRenderingContext2D.createLinearGradient() or CanvasRenderingContext2D.createRadialGradient().

CanvasPattern

The CanvasPattern interface represents an opaque object describing a pattern, based on an image, a canvas or a video, created by the CanvasRenderingContext2D.createPattern() method.

CanvasRenderingContext2D

To get an object of this interface, call getContext() on a canvas element, supplying "2d" as the argument:

CanvasWindingRule

CaretPosition

The CaretPosition interface represents the caret postion, an indicator for the text insertion point. You can get a CaretPosition using the document.caretPositionFromPoint method.

CharacterData

The CharacterData abstract interface represents a Node object that contains characters. This is an abstract interface, meaning there aren't any object of type CharacterData: it is implemented by other interfaces, like Text, Comment, or ProcessingInstruction which aren't abstract.

ChromeFilePropertyBag

Client

The Client interface of the ServiceWorker API represents the scope of a service worker client. A service worker client is either a document in a browser context or a SharedWorker, which is controlled by an active worker. A client object acts as a snapshot representation of its associated service worker client in the scope of a service worker.

ClientQueryOptions

Clients

The Clients interface of the Service Workers API represents a container for a list of Client objects.

ClipboardEvent

The ClipboardEvent interface represents events providing information related to modification of the clipboard, that is cut, copy, and paste events.

ClipboardEventInit

CloseEvent

A CloseEvent is sent to clients using WebSockets when the connection is closed. This is delivered to the listener indicated by the WebSocket object's onclose attribute.

CloseEventInit

CommandEvent

Comment

The Comment interface represents textual notations within markup; although it is generally not visually shown, such comments are available to be read in the source view. Comments are represented in HTML and XML as content between '!--' and '--'. In XML, the character sequence '--' cannot be used within a comment.

CompositeOperation

CompositionEvent

The DOM CompositionEvent represents events that occur due to the user indirectly entering text.

ComputedTimingProperties

Console

The Console object provides access to the browser's debugging console (e.g., the Web Console in Firefox). The specifics of how it works vary from browser to browser, but there is a de facto set of features that are typically provided.

ContentElement

The HTMLContentElement interface represents a content HTML Element, which is used in Shadow DOM.

ConvertCoordinateOptions

Coordinates

The Coordinates interface represents the position and altitude of the device on Earth, as well as the accuracy with which these properties are calculated.

Crypto

The Crypto interface represents basic cryptography features available in the current context. It allows access to a cryptographically strong random number generator and to cryptographic primitives.

CryptoKey

The CryptoKey interface represents a cryptographic key derived from a specific key algorithm.

CustomEvent

This interface inherits properties from its parent, Event:

CustomEventInit

DListElement

The HTMLDListElement interface provides special properties (beyond those of the regular HTMLElement interface it also has available to it by inheritance) for manipulating definition list elements.

DOMCursor

DOMElement

The Element interface represents an object of a Document. This interface describes methods and properties common to all kinds of elements. Specific behaviors are described in interfaces which inherit from Element but add additional functionality.

DOMError

The DOMError interface describes an error object that contains an error name.

DOMException

The DOMException interface represents an abnormal event (called an exception) which occurs as a result of calling a method or accessing a property of a web API. This is basically how error conditions are described in web APIs.

DOMImplementation

The DOMImplementation interface represent an object providing methods which are not dependent on any particular document. Such an object is returned by the Document.implementation property.

DOMMatrix

The DOMMatrix interface represents 4x4 matrices, suitable for 2D and 3D operations.

DOMMatrixReadOnly

The DOMMatrixReadOnly interface represents 4x4 matrices, suitable for 2D and 3D operations. If this interface defines only read-only matrices, the DOMMatrix interface which inherits from it, add all the properties and the methods to allow to have modifiable matrices.

DOMParser

DOMParser can parse XML or HTML source stored in a string into a DOM Document. DOMParser is specified in DOM Parsing and Serialization.

DOMPoint

A DOMPoint represents a 2D or 3D point in a coordinate system.

DOMPointInit

DOMPointReadOnly

The DOMPointReadOnly interface specifies the standard properties used by DOMPoint to define a 2D or 3D point in a coordinate system.

DOMQuad

DOMRect

A DOMRect represents a rectangle.

DOMRectList

DOMRectReadOnly

The DOMRectReadOnly interface specifies the standard properties used by DOMRect to define a rectangle.

DOMRequest

DOMRequestReadyState

DOMStringList

A type returned by some APIs which contains a list of DOMString (strings).

DOMStringMap

Used by the dataset HTML attribute to represent data for custom attributes added to elements.

DOMTokenList

The DOMTokenList interface represents a set of space-separated tokens. Such a set is returned by Element.classList, HTMLLinkElement.relList, HTMLAnchorElement.relList or HTMLAreaElement.relList. It is indexed beginning with 0 as with JavaScript Array objects. DOMTokenList is always case-sensitive.

DOMTransaction

DOMTransactionEvent

DOMTransactionEventInit

DataElement

The HTMLDataElement interface provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating data elements.

DataListElement

The HTMLDataListElement interface provides special properties (beyond the HTMLElement object interface it also has available to it by inheritance) to manipulate datalist elements and their content.

DataTransfer

The DataTransfer object is used to hold the data that is being dragged during a drag and drop operation. It may hold one or more data items, each of one or more data types. For more information about drag and drop, see HTML Drag and Drop API.

DataView

DedicatedWorkerGlobalScope

The DedicatedWorkerGlobalScope object (the Worker global scope) is accessible through the self keyword. Some additional global functions, namespaces objects, and constructors, not typically associated with the worker global scope, but available on it, are listed in the JavaScript Reference. See also: Functions available to workers.

DesktopNotification

DesktopNotificationCenter

DeviceAcceleration

A DeviceAcceleration object provides information about the amount of acceleration the device is experiencing along all three axes.

DeviceAccelerationInit

DeviceMotionEvent

The DeviceMotionEvent provides web developers with information about the speed of changes for the device's position and orientation.

DeviceMotionEventInit

DeviceOrientationEvent

The DeviceOrientationEvent provides web developers with information from the physical orientation of the device running the web page.

DeviceOrientationEventInit

DeviceRotationRate

A DeviceRotationRate object provides information about the rate at which the device is rotating around all three axes.

DeviceRotationRateInit

DirectionSetting

Directory

DirectoryElement

DivElement

The HTMLDivElement interface provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating div elements.

Document

The Document interface represents any web page loaded in the browser and serves as an entry point into the web page's content, which is the DOM tree. The DOM tree includes elements such as body and table, among many others. It provides functionality global to the document, like how to obtain the page's URL and create new elements in the document.

DocumentFragment

The DocumentFragment interface represents a minimal document object that has no parent. It is used as a light-weight version of Document to store well-formed or potentially non-well-formed fragments of XML.

DocumentTimeline

The DocumentTimeline interface of the the Web Animations API represents animation timelines, including the default document timeline (accessed via Document.timeline).

DocumentType

The DocumentType interface represents a Node containing a doctype.

DragEvent

The DragEvent interface is a DOM event that represents a drag and drop interaction. The user initiates a drag by placing a pointer device (such as a mouse) on the touch surface and then dragging the pointer to a new location (such as another DOM element). Applications are free to interpret a drag and drop interaction in an application-specific way.

DragEventInit

DummyInterface

DummyInterfaceWorkers

Element

The HTMLElement interface represents any HTML element. Some elements directly implement this interface, others implement it via an interface that inherits it.

ElementRegistrationOptions

EmbedElement

The HTMLEmbedElement interface, which provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating embed elements.

ErrorEvent

The ErrorEvent interface represents events providing information related to errors in scripts or in files.

ErrorEventInit

Event

The Event interface represents any event which takes place in the DOM; some are user-generated (such as mouse or keyboard events), while others are generated by APIs (such as events that indicate an animation has finished running, a video has been paused, and so forth). There are many types of event, some of which use are other interfaces based on the main Event interface. Event itself contains the properties and methods which are common to all events.

EventInit

EventListener

This method is called whenever an event occurs of the type for which the EventListener interface was registered.

EventModifierInit

EventSource

The EventSource interface is used to receive server-sent events. It connects to a server over HTTP and receives events in text/event-stream format without closing the connection.

EventSourceInit

EventTarget

EventTarget is an interface implemented by objects that can receive events and may have listeners for them.

Exception

ExtendableEvent

The ExtendableEvent interface extends the lifetime of the install and activate events dispatched on the global scope as part of the service worker lifecycle. This ensures that any functional events (like FetchEvent) are not dispatched until it upgrades database schemas and deletes the outdated cache entries.

ExtendableEventInit

ExtendableMessageEvent

The ExtendableMessageEvent interface of the ServiceWorker API represents the event object of a message event fired on a service worker (when a channel message is received on the ServiceWorkerGlobalScope from another context) — extends the lifetime of such events.

ExtendableMessageEventInit

External

FetchEvent

The parameter passed into the ServiceWorkerGlobalScope.onfetch handler, FetchEvent represents a fetch action that is dispatched on the ServiceWorkerGlobalScope of a ServiceWorker. It contains information about the request and resulting response, and provides the FetchEvent.respondWith() method, which allows us to provide an arbitrary response back to the controlled page.

FetchEventInit

FieldSetElement

The HTMLFieldSetElement interface has special properties and methods (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of field-set elements.

File

The File interface provides information about files and allows JavaScript in a web page to access their content.

FileList

An object of this type is returned by the files property of the HTML input element; this lets you access the list of files selected with the input type="file" element. It's also used for a list of files dropped into web content when using the drag and drop API; see the DataTransfer object for details on this usage.

FileMode

FilePropertyBag

FileReader

The FileReader object lets web applications asynchronously read the contents of files (or raw data buffers) stored on the user's computer, using File or Blob objects to specify the file or data to read.

FileReaderSync

The FileReaderSync interface allows to read File or Blob objects in a synchronous way.

FillMode

Float32Array

Float64Array

FocusEvent

The FocusEvent interface represents focus-related events like focus, blur, focusin, or focusout.

FocusEventInit

FontElement

FontFace

The FontFace interface represents a single usable font face. It allows control of the source of the font face, being a URL to an external resource, or a buffer; it also allows control of when the font face is loaded and its current status.

FontFaceDescriptors

FontFaceLoadStatus

FontFaceSet

The FontFaceSet interface of the CSS Font Loading API is an interface for loading font faces and checking their download statuses.

FontFaceSetIterator

FontFaceSetIteratorResult

FontFaceSetLoadStatus

FormData

The FormData interface provides a way to easily construct a set of key/value pairs representing form fields and their values, which can then be easily sent using the XMLHttpRequest.send() method. It uses the same format a form would use if the encoding type were set to "multipart/form-data".

FormDataIterator

FormElement

The HTMLFormElement interface provides methods to create and modify form elements. document.forms - returns an array of HTMLFormElement objects referencing all forms on the page. document.forms[index] - returns an HTMLFormElement object referencing the form at the specified index. document.forms['id'] - returns an HTMLFormElement object referencing the form with the specified id. document.forms['name'] - returns an HTMLFormElement object referencing the form with the specified name.

FrameElement

FrameSetElement

The HTMLFrameSetElement interface provides special properties (beyond those of the regular HTMLElement interface they also inherit) for manipulating frameset elements.

FrameType

Gamepad

The Gamepad interface of the Gamepad API defines an individual gamepad or other controller, allowing access to information such as button presses, axis positions, and id.

GamepadButton

The GamepadButton interface defines an individual button of a gamepad or other controller, allowing access to the current state of different types of buttons available on the control device.

GamepadMappingType

Geolocation

The Geolocation interface represents an object able to programmatically obtain the position of the device. It gives Web content access to the location of the device. This allows a Web site or app to offer customized results based on the user's location.

GetUserMediaRequest

HRElement

The HTMLHRElement interface provides special properties (beyond those of the HTMLElement interface it also has available to it by inheritance) for manipulating hr elements.

HTMLAllCollection

HTMLCollection

The HTMLCollection interface represents a generic collection (array-like object similar to arguments) of elements (in document order) and offers methods and properties for selecting from the list.

HTMLDocument

HTMLDocument is an abstract interface of the DOM which provides access to special properties and methods not present by default on a regular (XML) document.

HTMLFormControlsCollection

The HTMLFormControlsCollection interface represents a collection of HTML form control elements. It replaces one method of HTMLCollection.

HTMLOptionsCollection

HTMLOptionsCollection is an interface representing a collection of HTML option elements (in document order) and offers methods and properties for traversing the list as well as optionally altering its items. This type is returned solely by the "options" property of select.

HTMLPropertiesCollection

HashChangeEvent

The hashchange event is fired when the fragment identifier of the URL has changed (the part of the URL that follows the # symbol, including the # symbol).

HashChangeEventInit

HeadElement

The HTMLHeadElement interface contains the descriptive information, or metadata, for a document. This object inherits all of the properties and methods described in the HTMLElement interface.

Headers

The Headers interface of the Fetch API allows you to perform various actions on HTTP request and response headers. These actions include retrieving, setting, adding to, and removing. A Headers object has an associated header list, which is initially empty and consists of zero or more name and value pairs.  You can add to this using methods like append() (see Examples.) In all methods of this interface, header names are matched by case-insensitive byte sequence.

HeadersIterator

HeadingElement

The HTMLHeadingElement interface represents the different heading elements. It inherits methods and properties from the HTMLElement interface.

History

The History interface allows to manipulate the browser session history, that is the pages visited in the tab or frame that the current page is loaded in.

HitRegionOptions

HtmlElement

The HTMLHtmlElement interface serves as the root node for a given HTML document.  This object inherits the properties and methods described in the HTMLElement interface.

IFrameElement

The HTMLIFrameElement interface provides special properties and methods (beyond those of the HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of inline frame elements.

Image

ImageBitmap

The ImageBitmap interface represents a bitmap image which can be drawn to a canvas without undue latency. It can be created from a variety of source objects using the createImageBitmap() factory method. ImageBitmap provides an asynchronous and resource efficient pathway to prepare textures for rendering in WebGL.

ImageBitmapRenderingContext

The ImageBitmapRenderingContext interface is a canvas rendering context which only provides the functionality to replace the canvas's contents with the given ImageBitmap. Its context id (the first argument to HTMLCanvasElement.getContext() or OffscreenCanvas.getContext()  is "bitmaprenderer".

ImageCapture

ImageData

The ImageData interface represents the underlying pixel data of an area of a canvas element. It is created using the ImageData() constructor or creator methods on the CanvasRenderingContext2D object associated with a canvas: createImageData() and getImageData(). It can also be used to set a part of the canvas by using putImageData().

ImageElement

The HTMLImageElement interface provides special properties and methods  for manipulating the layout and presentation of img elements.

InputElement

The HTMLInputElement interface provides special properties and methods for manipulating the layout and presentation of input elements.

InputEvent

The InputEvent interface represents an event notifying of editable content change.

InputEventInit

Int16Array

Int32Array

Int8Array

IterationCompositeOperation

KeyEvent

KeyboardEvent

KeyboardEvent objects describe a user interaction with the keyboard. Each event describes a key; the event type (keydown, keypress, or keyup) identifies what kind of activity was performed.

KeyboardEventInit

KeyframeEffect

The KeyframeEffect interface of the Web Animations API lets us create sets of animatable properties and values, called keyframes. These can then be played using the Animation() constructor.

KeyframeEffectReadOnly

The KeyframeEffectReadOnly interface of the Web Animations API describes sets of animatable properties and values that can be played using the Animation.Animation() constructor, and which are inherited by KeyframeEffect.

LIElement

The HTMLLIElement interface expose specific properties and methods (beyond those defined by regular HTMLElement interface it also has available to it by inheritance) for manipulating list elements.

LabelElement

The HTMLLabelElement interface gives access to properties specific to label elements. It inherits methods and properties from the base HTMLElement interface.

LegendElement

The HTMLLegendElement is an interface allowing to access properties of the legend elements. It inherits properties and methods from the HTMLElement interface.

LifecycleCallbacks

LinkElement

The HTMLLinkElement interface represents reference information for external resources and the relationship of those resources to a document and vice-versa. This object inherits all of the properties and methods of the HTMLElement interface.

LocalMediaStream

The LocalMediaStream interface represents a stream of media content fetched from a local data source. This is the interface returned by getUserMedia().

Location

The Location interface represents the location (URL) of the object it is linked to. Changes done on it are reflected on the object it relates to. Both the Document and Window interface have such a linked Location, accessible via Document.location and Window.location respectively.

MapElement

The HTMLMapElement interface provides special properties and methods (beyond those of the regular object HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of map elements.

MediaElement

The HTMLMediaElement interface adds to HTMLElement the properties and methods needed to support basic media-related capabilities that are common to audio and video. The HTMLVideoElement and HTMLAudioElement elements both inherit this interface.

MediaError

The MediaError interface represents an error associated to a media, like a HTMLMediaElement.

MediaKeyStatusMapIterator

MediaList

MediaQueryList

A MediaQueryList object maintains a list of media queries on a document, and handles sending notifications to listeners when the media queries on the document change.

MediaRecorder

The MediaRecorder interface of the MediaStream Recording API provides functionality to easily record media. It is created by the invocation of the MediaRecorder() constructor.

MediaRecorderOptions

MediaSource

The MediaSource interface represents a source of media data for an HTMLMediaElement object. A MediaSource object can be attached to a HTMLMediaElement to be played in the user agent.

MediaSourceEndOfStreamError

MediaSourceReadyState

MediaStream

The MediaStream interface represents a stream of media content. A stream consists of several tracks such as video or audio tracks. Each track is specified as an instance of MediaStreamTrack.

MediaStreamConstraints

The MediaStreamConstraints dictionary is used when calling getUserMedia() to specify what kinds of tracks should be included in the returned MediaStream, and, optionally, to establish constraints for those tracks' settings.

MediaStreamError

MediaStreamTrack

The MediaStreamTrack interface represents a single media track within a stream; typically, these are audio or video tracks, but other track types may exist as well.

MediaTrackConstraintSet

MediaTrackConstraints

The MediaTrackConstraints dictionary is used to describe a set of capabilities and the value or values each can take on. A constraints dictionary is passed into applyConstraints() to allow a script to establish a set of exact (required) values or ranges and/or preferred values or ranges of values for the track, and the most recently-requested set of custom constraints can be retrieved by calling getConstraints().

MenuElement

MenuItemElement

MessageChannel

The MessageChannel interface of the Channel Messaging API allows us to create a new message channel and send data through it via its two MessagePort properties.

MessageEvent

A MessageEvent is the interface representing a message received by a target, being a WebSocket or a WebRTC RTCDataChannel

MessageEventInit

MessagePort

The MessagePort interface of the Channel Messaging API represents one of the two ports of a MessageChannel, allowing sending of messages from one port and listening out for them arriving at the other.

MessagePortList

MetaElement

The HTMLMetaElement interface contains descriptive metadata about a document. It inherits all of the properties and methods described in the HTMLElement interface.

MeterElement

The HTML meter elements expose the HTMLMeterElement interface, which provides special properties and methods (beyond the HTMLElement object interface they also have available to them by inheritance) for manipulating the layout and presentation of meter elements.

MimeType

MimeTypeArray

ModElement

The HTMLModElement interface provides special properties (beyond the regular methods and properties available through the HTMLElement interface they also have available to them by inheritance) for manipulating modification elements, that is del and ins.

MouseEvent

The MouseEvent interface represents events that occur due to the user interacting with a pointing device (such as a mouse). Common events using this interface include click, dblclick, mouseup, mousedown.

MouseEventInit

MouseScrollEvent

The MouseScrollEvent interface represents events that occur due to the user moving a mouse wheel or similar input device.

MutationEvent

Provides event properties that are specific to modifications to the Document Object Model (DOM) hierarchy and nodes.

MutationObserver

MutationObserver provides developers a way to react to changes in a DOM. It is designed as a replacement for Mutation Events defined in the DOM3 Events specification.

MutationObserverInit

MutationRecord

A MutationRecord represents an individual DOM mutation. It is the object that is passed to MutationObserver's callback.

NamedNodeMap

The NamedNodeMap interface represents a collection of Attr objects. Objects inside a NamedNodeMap are not in any particular order, unlike NodeList, although they may be accessed by an index as in an array.

Navigator

The Navigator interface represents the state and the identity of the user agent. It allows scripts to query it and to register themselves to carry on some activities.

Node

A Node is an interface from which a number of DOM types inherit, and allows these various types to be treated (or tested) similarly.

NodeFilter

A NodeFilter interface represents an object used to filter the nodes in a NodeIterator or TreeWalker. They don't know anything about the DOM or how to traverse nodes; they just know how to evaluate a single node against the provided filter.

NodeIterator

The NodeIterator interface represents an iterator over the members of a list of the nodes in a subtree of the DOM. The nodes will be returned in document order.

NodeList

NodeList objects are collections of nodes such as those returned by Node.childNodes and the document.querySelectorAll method.

Notification

The Notification interface of the Notifications API is used to configure and display desktop notifications to the user.

NotificationDirection

NotificationEvent

NotificationEventInit

NotificationOptions

NotificationPermission

NotifyPaintEvent

OListElement

The HTMLOListElement interface provides special properties (beyond those defined on the regular HTMLElement interface it also has available to it by inheritance) for manipulating ordered list elements.

ObjectElement

The HTMLObjectElement interface provides special properties and methods (beyond those on the HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of object element, representing external resources.

ObjectURLOptions

OptGroupElement

The HTMLOptGroupElement interface provides special properties and methods (beyond the regular HTMLElement object interface they also have available to them by inheritance) for manipulating the layout and presentation of optgroup elements.

OptionElement

The HTMLOptionElement interface represents option elements and inherits all classes and methods of the HTMLElement interface.

OrientationLockType

OrientationType

OutputElement

The HTMLOutputElement interface provides properties and methods (beyond those inherited from HTMLElement) for manipulating the layout and presentation of output elements.

PageTransitionEvent

Page transition events fire when a webpage is being loaded or unloaded.

PageTransitionEventInit

PaintRequest

PaintRequestList

ParagraphElement

The HTMLParagraphElement interface provides special properties (beyond those of the regular HTMLElement object interface it inherits) for manipulating p elements.

ParamElement

The HTMLParamElement interface provides special properties (beyond those of the regular HTMLElement object interface it inherits) for manipulating param elements, representing a pair of a key and a value that acts as a parameter for an object element.

Path2D

The Path2D interface of the Canvas 2D API is used to declare paths that are then later used on CanvasRenderingContext2D objects. The path methods of the CanvasRenderingContext2D interface are present on this interface as well and are allowing you to create paths that you can retain and replay as required on a canvas.

Performance

The Performance interface represents timing-related performance information for the given page.

PerformanceEntry

The PerformanceEntry object encapsulates a single performance metric that is part of the performance timeline. A performance entry can be directly created by making a performance mark or measure (for example by calling the mark() method) at an explicit point in an application. Performance entries are also created in indirect ways such as loading a resource (such as an image).

PerformanceMark

PerformanceMark is an abstract interface for performance entries with an entry type of "mark". Entries of this type are created by calling performance.mark() to add a named DOMHighResTimeStamp (the mark) to the browser's performance timeline.

PerformanceMeasure

PerformanceMeasure is an abstract interface for performance entries with an entry type of "measure". Entries of this type are created by calling performance.measure() to add a named DOMHighResTimeStamp (the measure) between two marks to the browser's performance timeline.

PerformanceNavigation

The PerformanceNavigation interface represents information about how the navigation to the current document was done.

PerformanceResourceTiming

The PerformanceResourceTiming interface enables retrieving and analyzing detailed network timing data regarding the loading of an application's resources. An application can use the timing metrics to determine, for example, the length of time it takes to fetch a specific resource, such as an XMLHttpRequest, SVG, image, or script.

PerformanceTiming

The PerformanceTiming interface represents timing-related performance information for the given page.

PermissionState

PermissionStatus

The PermissionStatus interface of the Permissions API provides the state of an object and an event handler for monitoring changes to said state.

Permissions

Documentation Permissions by Mozilla Contributors, licensed under CC-BY-SA 2.5.

PictureElement

The HTMLPictureElement interface represents a picture HTML element. It doesn't implement specific properties or methods.

PlaybackDirection

Plugin

The Plugin interface provides information about a browser plugin.

PluginArray

The PluginArray interface is used to store a list of Plugin objects describing the available plugins; it's returned by the window.navigator.plugins property. The PluginArray is not a JavaScript array, but has the length property and supports accessing individual items using bracket notation (plugins[2]), as well as via item(index) and namedItem("name") methods.

PointerEvent

The PointerEvent interface represents the state of a DOM event produced by a pointer such as the geometry of the contact point, the device type that generated the event, the amount of pressure that was applied on the contact surface, etc.

PointerEventInit

PopStateEvent

An event handler for the popstate event on the window.

PopStateEventInit

PopupBlockedEvent

PopupBlockedEventInit

Position

The Position interface represents the position of the concerned device at a given time. The position, represented by a Coordinates object, comprehends the 2D position of the device, on a spheroid representing the Earth, but also its altitude and its speed.

PositionError

The PositionError interface represents the reason of an error occurring when using the geolocating device.

PositionOptions

The PositionOptions interface describes an object containing option properties to pass as a parameter of Geolocation.getCurrentPosition() and Geolocation.watchPosition().

PreElement

The HTMLPreElement interface expose specific properties and methods (beyond those defined by regular HTMLElement interface it also has available to it by inheritance) for manipulating block of preformatted text.

ProcessingInstruction

A processing instruction provides an opportunity for application-specific instructions to be embedded within XML and which can be ignored by XML processors which do not support processing their instructions (outside of their having a place in the DOM).

ProgressElement

The HTMLProgressElement interface provides special properties and methods (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of progress elements.

ProgressEvent

The ProgressEvent interface represents events measuring progress of an underlying process, like an HTTP request (for an XMLHttpRequest, or the loading of the underlying resource of an img, audio, video, style or link).

ProgressEventInit

PropertyNodeList

QuoteElement

The HTMLQuoteElement interface provides special properties and methods (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating quoting elements, like blockquote and q, but not the cite element.

RGBColor

RadioNodeList

The RadioNodeList interface represents a collection of elements in a form or a fieldset element.

Range

The Range interface represents a fragment of a document that can contain nodes and parts of text nodes.

RecordErrorEvent

RecordErrorEventInit

RecordingState

Rect

ReferrerPolicy

Request

The Request interface of the Fetch API represents a resource request.

RequestCache

RequestCredentials

RequestInit

RequestMode

RequestRedirect

Response

The Response interface of the Fetch API represents the response to a request.

ResponseInit

ResponseType

Screen

The Screen interface represents a screen, usually the one on which the current window is being rendered.

ScreenOrientation

ScriptElement

HTML script elements expose the HTMLScriptElement interface, which provides special properties and methods (beyond the regular HTMLElement object interface they also have available to them by inheritance) for manipulating the layout and presentation of script elements.

ScrollAreaEvent

ScrollIntoViewOptions

ScrollOptions

ScrollRestoration

ScrollToOptions

SelectElement

The HTMLSelectElement interface represents a select HTML Element. These elements also share all of the properties and methods of other HTML elements via the HTMLElement interface.

Selection

Calling the Selection.toString() method returns the text contained in the selection, e.g.:

SelectionMode

ServiceWorker

The ServiceWorker interface of the ServiceWorker API provides a reference to a service worker. Multiple browsing contexts (e.g. pages, workers, etc.) can be associated with the same service worker, each through a unique ServiceWorker object.

ServiceWorkerGlobalScope

The ServiceWorkerGlobalScope interface of the ServiceWorker API represents the global execution context of a service worker.

ServiceWorkerRegistration

The ServiceWorkerRegistration interface of the ServiceWorker API represents the service worker registration. You register a service worker to control one or more pages that share the same origin.

ServiceWorkerState

The ServiceWorkerState is associated with its ServiceWorker's state.

ShadowElement

The HTMLShadowElement interface represents a shadow HTML Element, which is used in Shadow DOM.

ShadowRoot

The ShadowRoot interface of the Shadow DOM API is the root node of a DOM subtree that is rendered separately from a document's main DOM tree.

SharedWorker

The SharedWorker interface represents a specific kind of worker that can be accessed from several browsing contexts, such as several windows, iframes or even workers. They implement an interface different than dedicated workers and have a different global scope, SharedWorkerGlobalScope.

SharedWorkerGlobalScope

The SharedWorkerGlobalScope object (the SharedWorker global scope) is accessible through the self keyword. Some additional global functions, namespaces objects, and constructors, not typically associated with the worker global scope, but available on it, are listed in the JavaScript Reference. See the complete list of functions available to workers.

SimpleGestureEvent

SourceBuffer

The SourceBuffer interface represents a chunk of media to be passed into an HTMLMediaElement and played, via a MediaSource object. This can be made up of one or several media segments.

SourceBufferAppendMode

SourceBufferList

The SourceBufferList interface represents a simple container list for multiple SourceBuffer objects.

SourceElement

The HTMLSourceElement interface provides special properties (beyond the regular HTMLElement object interface it also has available to it by inheritance) for manipulating source elements.

SpanElement

The HTMLSpanElement interface represents a span element and derives from the HTMLElement interface, but without implementing any additional properties or methods.

SpeechGrammar

The SpeechGrammar interface of the Web Speech API represents a set of words or patterns of words that we want the recognition service to recognize.

SpeechGrammarList

The SpeechGrammarList interface of the Web Speech API represents a list of SpeechGrammar objects containing words or patterns of words that we want the recognition service to recognize.

SpeechRecognition

The SpeechRecognition interface of the Web Speech API is the controller interface for the recognition service; this also handles the SpeechRecognitionEvent sent from the recognition service.

SpeechRecognitionAlternative

The SpeechRecognitionAlternative interface of the Web Speech API represents a single word that has been recognised by the speech recognition service.

SpeechRecognitionError

The SpeechRecognitionError interface of the Web Speech API represents error messages from the recognition service.

SpeechRecognitionErrorCode

SpeechRecognitionErrorInit

SpeechRecognitionEvent

The SpeechRecognitionEvent interface of the Web Speech API represents the event object for the result and nomatch events, and contains all the data associated with an interim or final speech recognition result.

SpeechRecognitionEventInit

SpeechRecognitionResult

The SpeechRecognitionResult interface of the Web Speech API represents a single recognition match, which may contain multiple SpeechRecognitionAlternative objects.

SpeechRecognitionResultList

The SpeechRecognitionResultList interface of the Web Speech API represents a list of SpeechRecognitionResult objects, or a single one if results are being captured in continuous mode.

SpeechSynthesis

The SpeechSynthesis interface of the Web Speech API is the controller interface for the speech service; this can be used to retrieve information about the synthesis voices available on the device, start and pause speech, and other commands besides.

SpeechSynthesisErrorCode

SpeechSynthesisErrorEvent

The SpeechSynthesisErrorEvent interface of the Web Speech API contains information about any errors that occur while processing SpeechSynthesisUtterance objects in the speech service.

SpeechSynthesisErrorEventInit

SpeechSynthesisEvent

The SpeechSynthesisEvent interface of the Web Speech API contains information about the current state of SpeechSynthesisUtterance objects that have been processed in the speech service.

SpeechSynthesisEventInit

SpeechSynthesisUtterance

The SpeechSynthesisUtterance interface of the Web Speech API represents a speech request. It contains the content the speech service should read and information about how to read it (e.g. language, pitch and volume.)

SpeechSynthesisVoice

The SpeechSynthesisVoice interface of the Web Speech API represents a voice that the system supports. Every SpeechSynthesisVoice has its own relative speech service including information about language, name and URI.

Storage

The Storage interface of the Web Storage API provides access to the session storage or local storage for a particular domain, allowing you to for example add, modify or delete stored data items.

StorageEvent

A StorageEvent is sent to a window when a storage area changes.

StorageEventInit

StyleElement

The HTMLStyleElement interface represents a style element. It inherits properties and methods from its parent, HTMLElement, and from LinkStyle.

StyleSheet

An object implementing the StyleSheet interface represents a single style sheet. CSS style sheets will further implement the more specialized CSSStyleSheet interface.

StyleSheetList

The StyleSheetList interface represents a list of StyleSheet.

SubtleCrypto

The SubtleCrypto interface represents a set of cryptographic primitives. It is available via the Crypto.subtle properties available in a window context (via Window.crypto).

SupportedType

TableCaptionElement

The HTMLTableCaptionElement interface special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating table caption elements.

TableCellElement

The HTMLTableCellElement interface provides special properties and methods (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of table cells, either header or data cells, in an HTML document.

TableColElement

The HTMLTableColElement interface provides special properties (beyond the HTMLElement interface it also has available to it inheritance) for manipulating single or grouped table column elements.

TableElement

The HTMLTableElement interface provides special properties and methods (beyond the regular HTMLElement object interface it also has available to it by inheritance) for manipulating the layout and presentation of tables in an HTML document.

TableRowElement

The HTMLTableRowElement interface provides special properties and methods (beyond the HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of rows in an HTML table.

TableSectionElement

The HTMLTableSectionElement interface provides special properties and methods (beyond the HTMLElement interface it also has available to it by inheritance) for manipulating the layout and presentation of sections, that is headers, footers and bodies, in an HTML table.

TemplateElement

Text

The Text interface represents the textual content of Element or Attr.  If an element has no markup within its content, it has a single child implementing Text that contains the element's text.  However, if the element contains markup, it is parsed into information items and Text nodes that form its children.

TextAreaElement

The HTMLTextAreaElement interface provides special properties and methods for manipulating the layout and presentation of textarea elements.

TextDecodeOptions

TextDecoder

The TextDecoder interface represents a decoder for a specific method, that is a specific character encoding, like utf-8, iso-8859-2, koi8, cp1261, gbk, ... A decoder takes a stream of bytes as input and emits a stream of code points. For a more scalable, non-native library, see StringView – a C-like representation of strings based on typed arrays.

TextDecoderOptions

TextEncoder

TextEncoder takes a stream of code points as input and emits a stream of bytes. For a more scalable, non-native library, see StringView – a C-like representation of strings based on typed arrays.

TextMetrics

The TextMetrics interface represents the dimension of a text in the canvas, as created by the CanvasRenderingContext2D.measureText() method.

TextTrack

TextTrackCue

TextTrackCueList

TextTrackKind

TextTrackList

TextTrackMode

TimeElement

The HTMLTimeElement interface provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating time elements.

TimeEvent

Extends Event.

TimeRanges

The TimeRanges interface is used to represent a set of time ranges, primarily for the purpose of tracking which portions of media have been buffered when loading it for use by the audio and video elements.

TitleElement

The HTMLTitleElement interface contains the title for a document. This element inherits all of the properties and methods of the HTMLElement interface.

Touch

The Touch interface represents a single contact point on a touch-sensitive device. The contact point is commonly a finger or stylus and the device may be a touchscreen or trackpad.

TouchEvent

The TouchEvent interface represents an event sent when the state of contacts with a touch-sensitive surface changes. This surface can be a touch screen or trackpad, for example. The event can describe one or more points of contact with the screen and includes support for detecting movement, addition and removal of contact points, and so forth.

TouchEventInit

TouchInit

TouchList

The TouchList interface represents a list of contact points with a touch surface; for example, if the user has three fingers on the touch surface (such as a screen or trackpad), the corresponding TouchList object would have one Touch object for each finger, for a total of three entries.

TrackElement

The HTMLTrackElement interface provides access to the properties of track` elements, as well as methods to manipulate them.

TrackEvent

TrackEventInit

TransitionEvent

The TransitionEvent interface represents events providing information related to transitions.

TransitionEventInit

TreeWalker

The TreeWalker object represents the nodes of a document subtree and a position within them.

UIEvent

The UIEvent interface represents simple user interface events.

UIEventInit

UListElement

The HTMLUListElement interface provides special properties (beyond those defined on the regular HTMLElement interface it also has available to it by inheritance) for manipulating unordered list elements.

URL

The URL interface represent an object providing static methods used for creating object URLs.

URLSearchParams

The URLSearchParams interface defines utility methods to work with the query string of a URL.

URLSearchParamsIterator

Uint16Array

Uint32Array

Uint8Array

Uint8ClampedArray

UncaughtRejectionObserver

UnknownElement

The HTMLUnknownElement interface represents an invalid HTML element and derives from the HTMLElement interface, but without implementing any additional properties or methods.

VTTCue

VTTRegion

ValidityState

The ValidityState interface represents the validity states that an element can be in, with respect to constraint validation. Together, they help explain why an element's value fails to validate, if it's not valid.

VideoElement

The HTMLVideoElement interface provides special properties and methods for manipulating video objects. It also inherits properties and methods of HTMLMediaElement and HTMLElement.

VideoPlaybackQuality

The VideoPlaybackQuality interface represents the set of metrics describing the playback quality of a video.

VideoStreamTrack

VideoTrack

VideoTrackList

VisibilityState

WebSocket

The WebSocket object provides the API for creating and managing a WebSocket connection to a server, as well as for sending and receiving data on the connection.

WheelEvent

The WheelEvent interface represents events that occur due to the user moving a mouse wheel or similar input device.

WheelEventInit

Window

The window object represents a window containing a DOM document; the document property points to the DOM document loaded in that window.

WindowClient

The WindowClient interface of the ServiceWorker API represents the scope of a service worker client that is a document in a browser context, controlled by an active worker. The service worker client independently selects and uses a service worker for its own loading and sub-resources.

Worker

The Worker interface of the Web Workers API represents a background task that can be easily created and can send messages back to its creator. Creating a worker is as simple as calling the Worker() constructor and specifying a script to be run in the worker thread.

WorkerDebuggerGlobalScope

WorkerGlobalScope

The WorkerGlobalScope interface of the Web Workers API is an interface representing the scope of any worker. Workers have no browsing context; this scope contains the information usually conveyed by Window objects — in this case event handlers, the console or the associated WorkerNavigator object. Each WorkerGlobalScope has its own event loop.

WorkerLocation

The WorkerLocation interface defines the absolute location of the script executed by the Worker. Such an object is initialized for each worker and is available via the WorkerGlobalScope.location property obtained by calling window.self.location.

WorkerNavigator

The WorkerNavigator interface represents a subset of the Navigator interface allowed to be accessed from a Worker. Such an object is initialized for each worker and is available via the WorkerGlobalScope.navigator property obtained by calling window.self.navigator.

XMLDocument

The XMLDocument interface represent an XML document. It inherits from the generic Document and does not add any specific methods or properties to it: nevertheless, several algorithms behave differently with the two types of documents.

XMLHttpRequest

XMLHttpRequest is an API that provides client functionality for transferring data between a client and a server. It provides an easy way to retrieve data from a URL without having to do a full page refresh. This enables a Web page to update just a part of the page without disrupting what the user is doing.

XMLHttpRequestEventTarget

XMLHttpRequestEventTarget is the interface that describes the event handlers you can implement in an object that will handle events for an XMLHttpRequest.

XMLHttpRequestResponseType

XMLHttpRequestUpload

XMLSerializer

XMLStylesheetProcessingInstruction

XPathEvaluator

XPathExpression

An XPathExpression is a compiled XPath query returned from document.createExpression(). It has a method evaluate() which can be used to execute the compiled XPath.

XPathNSResolver

XPathResult

XSLTProcessor

An XSLTProcessor applies an XSLT stylesheet transformation to an XML document to produce a new XML document as output. It has methods to load the XSLT stylesheet, to manipulate xsl:param parameter values, and to apply the transformation to documents.