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The AbstractWorker interface abstracts properties and methods common to all kind of workers, being Worker or SharedWorker.
The AbstractWorker interface abstracts properties and methods common to all kind of workers, being Worker or SharedWorker.
MDN
The AnalyserNode interface represents a node able to provide real-time frequency and time-domain analysis information.
The AnalyserNode interface represents a node able to provide real-time frequency and time-domain analysis information. It is an AudioNode that passes the audio stream unchanged from the input to the output, but allows you to take the generated data,process it, and create audio visualizations.
An AnalyzerNode has exactly one input and one output. The node works even if the output is not connected.
The AnimationEvent interface represents events providing information related to animations.
The AnimationEvent interface represents events providing information related to animations.
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This type represents a DOM element's attribute as an object.
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.
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The AudioBuffer interface represents a short audio asset residing in memory, created from an audio file using the AudioContext.decodeAudioData() method, or from raw data using AudioContext.createBuffer().
The AudioBuffer interface represents a short audio asset residing in memory, created from an audio file using the AudioContext.decodeAudioData() method, or from raw data using AudioContext.createBuffer(). Once put into an AudioBuffer, the audio can then be played by being passed into an AudioBufferSourceNode.
Objects of these types are designed to hold small audio snippets, typically less than 45 s. For longer sounds, objects implementing the MediaElementAudioSourceNode are more suitable.
The buffer contains data in the following format: non-interleaved IEEE754 32-bit linear PCM with a nominal range between -1 and +1, that is, 32bits floating point buffer, with each samples between -1.0 and 1.0. If the AudioBuffer has multiple channels, they are stored in separate buffer.
AudioBufferSourceNode has no input and exactly one output.
AudioBufferSourceNode has no input and exactly one output. The number of channels in the output corresponds to the number of channels of the AudioBuffer that is set to the AudioBufferSourceNode.buffer property. If there is no buffer set—that is, if the attribute's value is NULL—the output contains one channel consisting of silence. An AudioBufferSourceNode can only be played once; that is, only one call to AudioBufferSourceNode.start() is allowed. If the sound needs to be played again, another AudioBufferSourceNode has to be created. Those nodes are cheap to create, and AudioBuffers can be reused across plays. It is often said that AudioBufferSourceNodes have to be used in a "fire and forget" fashion: once it has been started, all references to the node can be dropped, and it will be garbage-collected automatically.
Multiple calls to AudioBufferSourceNode.stop() are allowed. The most recent call replaces the previous one, granted the AudioBufferSourceNode has not already reached the end of the buffer.
The AudioContext interface represents an audio-processing graph built from audio modules linked together, each represented by an AudioNode.
The AudioContext interface represents an audio-processing graph built from audio modules linked together, each represented by an AudioNode. An audio context controls both the creation of the nodes it contains and the execution of the audio processing, or decoding. You need to create an AudioContext before you do anything else, as everything happens inside a context.
An AudioContext can be a target of events, therefore it implements the EventTarget interface.
The AudioDestinationNode interface represents the end destination of an audio graph in a given context — usually the speakers of your device.
The AudioDestinationNode interface represents the end destination of an audio graph in a given context — usually the speakers of your device. It can also be the node that will "record" the audio data when used with an OfflineAudioContext.
AudioDestinationNode has no output (as it is the output, no more AudioNode can be linked after it in the audio graph) and one input. The amount of channels in the input must be between 0 and the maxChannelCount value or an exception is raised.
The AudioDestinationNode of a given AudioContext can be retrieved using the AudioContext.destination property.
The AudioListener interface represents the position and orientation of the unique person listening to the audio scene, and is used in audio spatialisation.
The AudioListener interface represents the position and orientation of the unique person listening to the audio scene, and is used in audio spatialisation. All PannerNodes spatialise in relation to the AudioListener stored in the AudioContext.listener attribute.
It is important to note that there is only one listener per context and that it isn't an AudioNode.
The AudioNode interface is a generic interface for representing an audio processing module like an audio source (e.g.
The AudioNode interface is a generic interface for representing an audio processing module like an audio source (e.g. an HTML <audio> or <video> element, an OscillatorNode, etc.), the audio destination, intermediate processing module (e.g. a filter like BiquadFilterNode or ConvolverNode), or volume control (like GainNode).
An AudioNode has inputs and outputs, each with a given amount of channels. An AudioNode with zero inputs and one or multiple outputs is called a source node. The exact processing done varies from one AudioNode to another but, in general, a node reads its inputs, does some audio-related processing, and generates new values for its outputs, or simply lets the audio pass through (for example in the AnalyserNode, where the result of the processing is accessed separately).
Different nodes can be linked together to build a processing graph. Such a graph is contained in an AudioContext. Each AudioNode participates in exactly one such context. In general, processing nodes inherit the properties and methods of AudioNode, but also define their own functionality on top. See the individual node pages for more details, as listed on the Web Audio API homepage.
The AudioParam interface represents an audio-related parameter, usually a parameter of an AudioNode (such as GainNode.gain).
The AudioParam interface represents an audio-related parameter, usually a parameter of an AudioNode (such as GainNode.gain). An AudioParam can be set to a specific value or a change in value, and can be scheduled to happen at a specific time and following a specific pattern.
There are two kinds of AudioParam, a-rate and k-rate parameters:
Each AudioNode defines which of its parameters are a-rate or k-rate in the spec.
Each AudioParam has a list of events, initially empty, that define when and how values change. When this list is not empty, changes using the AudioParam.value attributes are ignored. This list of events allows us to schedule changes that have to happen at very precise times, using arbitrary timelime-based automation curves. The time used is the one defined in AudioContext.currentTime.
The BiquadFilterNode interface represents a simple low-order filter, and is created using the AudioContext.createBiquadFilter() method.
The BiquadFilterNode interface represents a simple low-order filter, and is created using the AudioContext.createBiquadFilter() method. It is an AudioNode that can represent different kinds of filters, tone control devices, and graphic equalizers. A BiquadFilterNode always has exactly one input and one output.
A Blob object represents a file-like object of immutable, raw data.
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.
An easy way to construct a Blob is by invoking the Blob constuctor. Another way is to use the slice() method to create a blob that contains a subset of another blob's data.
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A CDATA Section 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.
A CDATA Section 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.
As a CDATASection has no properties or methods unique to itself and only directly implements the Text interface, one can refer to Text to find its properties and methods.
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The CSSKeyframeRule interface describes an object representing a set of style for a given keyframe.
The CSSKeyframeRule interface describes an object representing a set of style for
a given keyframe. It corresponds to the contains of a single keyframe of a
@@keyframes at-rule. It implements the CSSRule interface with a type value of 8
(CSSRule.KEYFRAME_RULE).
MDN
The CSSKeyframesRule interface describes an object representing a complete set of keyframes for a CSS animation.
The CSSKeyframesRule interface describes an object representing a complete set
of keyframes for a CSS animation. It corresponds to the contains of a whole
@@keyframes at-rule. It implements the CSSRule interface with a type value of 7
(CSSRule.KEYFRAMES_RULE).
MDN
CSSMediaRule is an object representing a single CSS @media rule.
CSSMediaRule is an object 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).
MDN
The CSSNamespaceRule interface describes an object representing a single CSS
@@namespace at-rule.
The CSSNamespaceRule interface describes an object representing a single CSS
@@namespace at-rule. It implements the CSSRule interface, with a type value of 10
(CSSRule.NAMESPACE_RULE).
MDN
CSSPageRule is an object representing a single CSS @page rule.
CSSPageRule is an object representing a single CSS @page rule. It implements the
CSSRule interface with a type value of 6 (CSSRule.PAGE_RULE).
MDN
An object implementing the CSSRule DOM interface represents a single CSS at-rule.
An object implementing the CSSRule DOM interface represents a single CSS at-rule. References to a CSSRule-implementing object may be obtained by looking at a CSS style sheet's cssRules list.
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A CSSRuleList is an array-like object containing an ordered collection of CSSRule objects.
A CSSRuleList is an array-like object containing an ordered collection of CSSRule objects.
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A CSSStyleDeclaration is an interface to the declaration block returned by the style property of a cssRule in a stylesheet, when the rule is a CSSStyleRule.
A CSSStyleDeclaration is an interface to the declaration block returned by the style property of a cssRule in a stylesheet, when the rule is a CSSStyleRule.
MDN
CSSStyleRule represents a single CSS style rule.
CSSStyleRule represents a single CSS style rule. It implements the CSSRule interface with a type value of 1 (CSSRule.STYLE_RULE).
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An object implementing the CSSStyleSheet interface represents a single CSS style sheet.
An object implementing the CSSStyleSheet interface represents a single CSS style sheet.
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The CanvasGradient interface represents an opaque object describing a gradient and returned by CanvasRenderingContext2D.createLinearGradient or CanvasRenderingContext2D.createRadialGradient methods.
The CanvasGradient interface represents an opaque object describing a gradient and returned by CanvasRenderingContext2D.createLinearGradient or CanvasRenderingContext2D.createRadialGradient methods.
MDN
The CanvasPattern interface represents an opaque object describing a pattern, based on a image, a canvas or a video, created by the CanvasRenderingContext2D.createPattern() method.
The CanvasPattern interface represents an opaque object describing a pattern, based on a image, a canvas or a video, created by the CanvasRenderingContext2D.createPattern() method.
MDN
The 2D rendering context for the drawing surface of a <canvas> element.
The 2D rendering context for the drawing surface of a <canvas> element. To get this object, call getContext() on a <canvas>, supplying "2d" as the argument:
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The ChannelMergerNode interface, often used in conjunction with its opposite, ChannelSplitterNode, reunites different mono inputs into a single output.
The ChannelMergerNode interface, often used in conjunction with its opposite, ChannelSplitterNode, reunites different mono inputs into a single output. Each input is used to fill a channel of the output. This is useful for accessing each channels separately, e.g. for performing channel mixing where gain must be separately controlled on each channel.
If ChannelMergerNode has one single output, but as many inputs as there are channels to merge; the amount of inputs is defined as a parameter of its constructor and the call to AudioContext.createChannelMerger. In the case that no value is given, it will default to 6.
Using a ChannelMergerNode, it is possible to create outputs with more channels than the rendering hardware is able to process. In that case, when the signal is sent to the AudioContext.listener object, supernumerary channels will be ignored.
The ChannelSplitterNode interface, often used in conjunction with its opposite, ChannelMergerNode, separates the different channels of an audio source into a set of mono outputs.
The ChannelSplitterNode interface, often used in conjunction with its opposite, ChannelMergerNode, separates the different channels of an audio source into a set of mono outputs. This is useful for accessing each channel separately, e.g. for performing channel mixing where gain must be separately controlled on each channel.
If your ChannelSplitterNode always has one single input, the amount of outputs is defined by a parameter on its constructor and the call to AudioContext.createChannelSplitter(). In the case that no value is given, it will default to 6. If there are less channels in the input than there are outputs, supernumerary outputs are silent.
The CharacterData abstract interface represents a Node object that contains characters.
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.
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The ClipboardEvent interface represents events providing information related to modification of the clipboard, that is cut, copy, and paste events.
The ClipboardEvent interface represents events providing information related to modification of the clipboard, that is cut, copy, and paste events.
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A CloseEvent is sent to clients using WebSockets when the connection is closed.
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.
MDN
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.
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.
MDN
The DOM CompositionEvent represents events that occur due to the user indirectly entering text.
The DOM CompositionEvent represents events that occur due to the user indirectly entering text.
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The console object provides access to the browser's debugging console.
The console object provides access to the browser's debugging console. The specifics of how it works vary from browser to browser, but there is a de facto set of features that are typically provided.
MDN
The ConvolverNode interface is an AudioNode that performs a Linear Convolution on a given AudioBuffer, often used to achieve a reverb effect.
The ConvolverNode interface is an AudioNode that performs a Linear Convolution on a given AudioBuffer, often used to achieve a reverb effect. A ConvolverNode always has exactly one input and one output.
Note: For more information on the theory behind Linear Convolution, see the W3C Web Audio API spec section, Linear Effects Using Convolution, or read the The Wikipedia Linear Convolution Article.
The Coordinates interface represents the position and attitude of the device on Earth, as well as the accuracy with which these data are computed.
The Coordinates interface represents the position and attitude of the device on Earth, as well as the accuracy with which these data are computed.
MDN
The DOM CustomEvent are events initialized by an application for any purpose.
The DOM CustomEvent are events initialized by an application for any purpose.
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This interface describes an error object that contains an error name.
This interface describes an error object that contains an error name.
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The DOMException interface represents an anormal event happening when a method or a property is used.
The DOMException interface represents an anormal event happening when a method or a property is used.
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The DOMImplementation interface represent an object providing methods which are not dependent on any particular document.
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.
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DOMParser can parse XML or HTML source stored in a string into a DOM Document.
DOMParser can parse XML or HTML source stored in a string into a DOM Document. DOMParser is specified in DOM Parsing and Serialization.
Note that XMLHttpRequest supports parsing XML and HTML from URL-addressable resources.
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A type returned by DOMConfiguration.parameterNames which contains a list of DOMString (strings).
A type returned by DOMConfiguration.parameterNames which contains a list of DOMString (strings).
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This type represents a set of space-separated tokens.
This type represents a set of space-separated tokens. Commonly returned by HTMLElement.classList, HTMLLinkElement.relList, HTMLAnchorElement.relList or HTMLAreaElement.relList. It is indexed beginning with 0 as with JavaScript arrays. DOMTokenList is always case-sensitive.
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The DataTransfer object is used to hold the data that is being dragged during a drag and drop operation.
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 Drag and Drop.
This object is available from the dataTransfer property of all drag events. It cannot be created separately.
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The DedicatedWorkerGlobalScope object (the Worker global scope) is accessible through the self keyword.
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.
MDN
The DelayNode interface represents a delay-line; an AudioNode audio-processing module that causes a delay between the arrival of an input data and its propagation to the output.
The DelayNode interface represents a delay-line; an AudioNode audio-processing module that causes a delay between the arrival of an input data and its propagation to the output. A DelayNode always has exactly one input and one output, both with the same amount of channels.
When creating a graph that has a cycle, it is mandatory to have at least one DelayNode in the cycle, or the nodes taking part in the cycle will be muted.
Each web page loaded in the browser has its own document object.
Each web page loaded in the browser has its own document object. The Document interface serves as an entry point to the web page's content (the DOM tree, including elements such as <body> and <table>) and provides functionality global to the document (such as obtaining the page's URL and creating new elements in the document).
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The DocumentFragment interface represents a minimal document object that has no parent.
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.
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The DocumentType interface represents a Node containing a doctype.
The DocumentType interface represents a Node containing a doctype.
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The DynamicsCompressorNode interface provides a compression effect, which lowers the volume of the loudest parts of the signal in order to help prevent clipping and distortion that can occur when multiple sounds are played and multiplexed together at once.
The DynamicsCompressorNode interface provides a compression effect, which lowers the volume of the loudest parts of the signal in order to help prevent clipping and distortion that can occur when multiple sounds are played and multiplexed together at once. This is often used in musical production and game audio. DynamicsCompressorNode is an AudioNode that has exactly one input and one output; it is created using the AudioContext.createDynamicsCompressor method.
The Element interface represents part of the document.
The Element interface represents part of the document. This interface describes methods and properties common to each kind of elements. Specific behaviors are described in the specific interfaces, inheriting from Element: the HTMLElement interface for HTML elements, or the SVGElement interface for SVG elements.
https://developer.mozilla.org/en-US/docs/Web/API/element
The ErrorEvent interface represents events providing information related to errors in scripts or in files.
The ErrorEvent interface represents events providing information related to errors in scripts or in files.
MDN
Event handlers may be attached to various objects including DOM elements, document, the window object, etc.
Event handlers may be attached to various objects including DOM elements, document, the window object, etc. When an event occurs, an event object is created and passed sequentially to the event listeners.
The DOM Event interface is accessible from within the handler function, via the event object passed as the first argument. The following simple example shows how an event object is passed to the event handler function, and can be used from within one such function.
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EventSource enables servers to push data to Web pages over HTTP or using dedicated server-push protocols.
EventSource enables servers to push data to Web pages over HTTP or using dedicated server-push protocols. Event streams requests can be redirected using HTTP 301 and 307 redirects as with normal HTTP requests. Clients will reconnect if the connection is closed; a client can be told to stop reconnecting using the HTTP 204 No Content response code. W3C 2012
EventTarget is a DOM interface implemented by objects that can receive DOM events and have listeners for them.
EventTarget is a DOM interface implemented by objects that can receive DOM events and have listeners for them.
Element, document, and window are the most common event targets, but other objects can be event targets too, for example XMLHttpRequest, AudioNode, AudioContext and others.
Many event targets (including elements, documents, and windows) also support setting event handlers via on... properties and attributes.
MDN
The File interface provides information about -- and access to the contents of -- files.
The File interface provides information about -- and access to the contents of -- files.
These are generally retrieved from a FileList object returned as a result of a user selecting files using the input element, or from a drag and drop operation's DataTransfer object.
The file reference can be saved when the form is submitted while the user is offline, so that the data can be retrieved and uploaded when the Internet connection is restored.
MDN
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.
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.
MDN
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.
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.
MDN
The FocusEvent interface represents focus-related events like focus, blur, focusin, or focusout.
The FocusEvent interface represents focus-related events like focus, blur, focusin, or focusout.
MDN
XMLHttpRequest Level 2 adds support for the new FormData interface.
XMLHttpRequest Level 2 adds support for the new FormData interface. FormData objects provide 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.
MDN
The GainNode interface represents a change in volume.
The GainNode interface represents a change in volume. It is an AudioNode audio-processing module that causes a given gain to be applied to the input data before its propagation to the output. A GainNode always has exactly one input and one output, both with the same number of channels.
The gain is a unitless value, changing with time, that is multiplied to each corresponding sample of all input channels. If modified, the new gain is applied using a de-zippering algorithm in order to prevent unaesthetic 'clicks' from appearing in the resulting audio.
The GainNode is increasing the gain of the output.
The Geolocation interface represents an object able to programmatically obtain the position of the device.
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 offer customized results based on the user's location.
MDN
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.
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.
MDN
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.
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.
MDN
The HTMLAudioElement interface provides access to the properties of <audio> elements, as well as methods to manipulate them.
The HTMLAudioElement interface provides access to the properties of <audio> elements, as well as methods to manipulate them. It derives from the HTMLMediaElement interface.
MDN
The HTMLBRElement interface represents a HTML line break element (<br>).
The HTMLBRElement interface represents a HTML line break element (<br>). It inherits from HTMLElement.
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The HTMLBaseElement interface contains the base URI for a document.
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.
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The HTMLBaseFontElement interface provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating <basefont> elements.
The HTMLBaseFontElement interface provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating <basefont> elements.
MDN
The HTMLBodyElement interface provides special properties (beyond those of the regular HTMLElement interface they also inherit) for manipulating body elements.
The HTMLBodyElement interface provides special properties (beyond those of the regular HTMLElement interface they also inherit) for manipulating body elements.
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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.
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.
MDN
The HTMLCanvasElement interface provides properties and methods for manipulating the layout and presentation of canvas elements.
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.
MDN
HTMLCollection is an interface representing a generic collection of elements (in document order) and offers methods and properties for traversing the list.
HTMLCollection is an interface representing a generic collection of elements (in document order) and offers methods and properties for traversing the list.
MDN
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.
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.
MDN
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.
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.
MDN
The HTMLDivElement interface provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating div elements.
The HTMLDivElement interface provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating div elements.
MDN
The HTMLElement interface represents any HTML element.
The HTMLElement interface represents any HTML element. Some elements directly implement this interface, other implement it via an interface that inherit it.
MDN
The HTMLEmbedElement interface, which provides special properties (beyond the regular <htmlelement> interface it also has available to it by inheritance) for manipulating <embed> elements.
The HTMLEmbedElement interface, which provides special properties (beyond the regular <htmlelement> interface it also has available to it by inheritance) for manipulating <embed> elements.
MDN
The HTMLFieldSetElement interface 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.
The HTMLFieldSetElement interface 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.
MDN
The HTMLFormElement interface provides methods to create and modify <form> elements; it inherits from properties and methods of the HTMLElement interface.
The HTMLFormElement interface provides methods to create and modify <form> elements; it inherits from properties and methods of the HTMLElement interface.
MDN
The HTMLHRElement interface provides special properties (beyond those of the HTMLElement interface it also has available to it by inheritance) for manipulating <hr> elements.
The HTMLHRElement interface provides special properties (beyond those of the HTMLElement interface it also has available to it by inheritance) for manipulating <hr> elements.
MDN
The HTMLHeadElement interface contains the descriptive information, or metadata, for a document.
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.
MDN
The HTMLHeadingElement interface represents the different heading elements.
The HTMLHeadingElement interface represents the different heading elements. It inherits methods and properties from the HTMLElement interface.
MDN
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.
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.
MDN
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.
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.
MDN
The HTMLImageElement 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 <img> elements.
The HTMLImageElement 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 <img> elements.
MDN
The HTMLInputElement 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 input elements.
The HTMLInputElement 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 input elements.
MDN
The HTMLIsIndexElement interface provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating <isindex> elements.
The HTMLIsIndexElement interface provides special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating <isindex> elements.
MDN
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.
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.
MDN
The HTMLLabelElement interface gives access to properties specific to <label> elements.
The HTMLLabelElement interface gives access to properties specific to <label> elements. It inherits from HTMLElement.
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The HTMLLegendElement is an interface allowing to access properties of the <legend> elements.
The HTMLLegendElement is an interface allowing to access properties of the <legend> elements. It inherits properties and methods from the HTMLElement interface.
MDN
The HTMLLinkElement interface represents reference information for external resources and the relationship of those resources to a document and vice-versa.
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.
MDN
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.
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.
MDN
The HTMLMediaElement interface has special properties and methods (beyond the properties and methods available for all children of HTMLElement), that are common to all media-related objects.
The HTMLMediaElement interface has special properties and methods (beyond the properties and methods available for all children of HTMLElement), that are common to all media-related objects.
MDN
The HTMLMetaElement interface contains descriptive metadata about a document.
The HTMLMetaElement interface contains descriptive metadata about a document. Itt inherits all of the properties and methods described in the HTMLElement interface.
MDN
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>.
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>.
MDN
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.
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.
MDN
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.
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.
MDN
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.
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.
MDN
The HTMLOptionElement interface represents <option> elements and inherits all classes and methods of the HTMLElement interface.
The HTMLOptionElement interface represents <option> elements and inherits all classes and methods of the HTMLElement interface.
MDN
The HTMLParagraphElement interface provides special properties (beyond those of the regular HTMLElement object interface it inherits) for manipulating <p> elements.
The HTMLParagraphElement interface provides special properties (beyond those of the regular HTMLElement object interface it inherits) for manipulating <p> elements.
MDN
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.
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.
MDN
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.
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.
MDN
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.
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.
MDN
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.
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.
MDN
DOM Script objects expose the HTMLScriptElement (or HTML 4 HTMLScriptElement) interface, which provides special properties and methods (beyond the regular element object interface they also have available to them by inheritance) for manipulating the layout and presentation of <script> elements.
DOM Script objects expose the HTMLScriptElement (or HTML 4 HTMLScriptElement) interface, which provides special properties and methods (beyond the regular element object interface they also have available to them by inheritance) for manipulating the layout and presentation of <script> elements.
MDN
DOM select elements share all of the properties and methods of other HTML elements described in the element section.
DOM select elements share all of the properties and methods of other HTML elements described in the element section. They also have the specialized interface HTMLSelectElement (or HTML 4 HTMLSelectElement).
MDN
The HTMLSourceElement interface provides special properties (beyond the regular HTMLElement object interface it also has available to it by inheritance) for manipulating <source> elements.
The HTMLSourceElement interface provides special properties (beyond the regular HTMLElement object interface it also has available to it by inheritance) for manipulating <source> elements.
MDN
The HTMLSpanElement interface represents a <span> element and derives from the HTMLElement interface, but without implementing any additional properties or methods.
The HTMLSpanElement interface represents a <span> element and derives from the HTMLElement interface, but without implementing any additional properties or methods.
MDN
The HTMLStyleElement interface represents a <style> element.
The HTMLStyleElement interface represents a <style> element. It inherits properties and methods from its parent, HTMLElement, and from LinkStyle.
MDN
The HTMLTableCaptionElement interface special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating table caption elements.
The HTMLTableCaptionElement interface special properties (beyond the regular HTMLElement interface it also has available to it by inheritance) for manipulating table caption elements.
MDN
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.
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.
MDN
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.
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.
MDN
The HTMLTableDataCellElement interface provides special properties and methods (beyond the regular HTMLTableCellElement and HTMLElement interfaces it also has available to it by inheritance) for manipulating the layout and presentation of table data cells in an HTML document.
The HTMLTableDataCellElement interface provides special properties and methods (beyond the regular HTMLTableCellElement and HTMLElement interfaces it also has available to it by inheritance) for manipulating the layout and presentation of table data cells in an HTML document.
MDN
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.
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.
MDN
The HTMLTableHeaderCellElement interface provides special properties and methods (beyond the regular HTMLTableCellElement and HTMLElement interfaces it also has available to it by inheritance) for manipulating the layout and presentation of table header cells in an HTML document.
The HTMLTableHeaderCellElement interface provides special properties and methods (beyond the regular HTMLTableCellElement and HTMLElement interfaces it also has available to it by inheritance) for manipulating the layout and presentation of table header cells in an HTML document.
MDN
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.
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.
MDN
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.
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.
MDN
The HTMLTextAreaElement interface, which 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 <textarea> elements.
The HTMLTextAreaElement interface, which 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 <textarea> elements.
MDN
The HTMLTitleElement interface contains the title for a document.
The HTMLTitleElement interface contains the title for a document. This element inherits all of the properties and methods of the HTMLElement interface.
MDN
The HTMLTrackElement interface provides access to the properties of <track> elements, as well as methods to manipulate them.
The HTMLTrackElement interface provides access to the properties of <track> elements, as well as methods to manipulate them.
MDN
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.
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.
MDN
The HTMLUnknownElement interface represents an invalid HTML element and derives from the HTMLElement interface, but without implementing any additional properties or methods.
The HTMLUnknownElement interface represents an invalid HTML element and derives from the HTMLElement interface, but without implementing any additional properties or methods.
MDN
The HTMLVideoElement interface provides special properties and methods for manipulating video objects.
The HTMLVideoElement interface provides special properties and methods for manipulating video objects. It also inherits properties and methods of HTMLMediaElement and HTMLElement.
MDN
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).
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).
MDN
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.
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.
MDN
The IDBCursor interface of the IndexedDB API represents a cursor for traversing or iterating over multiple records in a database.
The IDBCursor interface of the IndexedDB API represents a cursor for traversing or iterating over multiple records in a database.
The cursor has a source that indicates which index or object store it is iterating. It has a position within the range, and moves in a direction that is increasing or decreasing in the order of record keys. The cursor enables an application to asynchronously process all the records in the cursor's range.
MDN
Same as IDBCursor with the value property.
Same as IDBCursor with the value property.
MDN
The IDBDatabase interface of the IndexedDB API provides asynchronous access to a connection to a database.
The IDBDatabase interface of the IndexedDB API provides asynchronous access to a connection to a database. Use it to create, manipulate, and delete objects in that database. The interface also provides the only way to get a transaction and manage versions on that database.
Everything you do in IndexedDB always happens in the context of a transaction, representing interactions with data in the database. All objects in IndexedDB—including object stores, indexes, and cursors—are tied to a particular transaction. Thus, you cannot execute commands, access data, or open anything outside of a transaction.
MDN
The IDBEvironment interface of the IndexedDB API provides asynchronous access to a client-side database.
The IDBEvironment interface of the IndexedDB API provides asynchronous access to a client-side database. It is implemented by window and Worker objects.
MDN
The IDBFactory interface of the IndexedDB API lets applications asynchronously access the indexed databases.
The IDBFactory interface of the IndexedDB API lets applications asynchronously access the indexed databases. The object that implements the interface is window.indexedDB. You open — that is, create and access — and delete a database with the object and not directly with IDBFactory. see IDBFactory on MDN
official documentation IDBFactory in w3c spec
The IDBIndex interface of the IndexedDB API provides asynchronous access to an index in a database.
The IDBIndex interface of the IndexedDB API provides asynchronous access to an index in a database. An index is a kind of object store for looking up records in another object store, called the referenced object store. You use this interface to retrieve data.
You can retrieve records in an object store through their keys or by using an index (cursors provide a third way: see IDBCursor). An index lets you look up records in an object store using properties of the values in the object stores records.
The index is a persistent key-value storage where the value part of its records is the key part of a record in the referenced object store. The records in an index are automatically populated whenever records in the referenced object store are inserted, updated, or deleted. Each record in an index can point to only one record in its referenced object store, but several indexes can reference the same object store. When the object store changes, all indexes that refers to the object store are automatically updated.
MDN
The IDBKeyRange interface of the IndexedDB API represents a continuous interval over some data type that is used for keys.
The IDBKeyRange interface of the IndexedDB API represents a continuous interval over some data type that is used for keys. Records can be retrieved from object stores and indexes using keys or a range of keys. You can limit the range using lower and upper bounds. For example, you can iterate over all values of a key between x and y.
A key range can have a single value or a range with upper and lower bounds or endpoints. If the key range has both upper and lower bounds, then it is bounded; if it has no bounds, it is unbounded. A bounded key range can either be open (the endpoints are excluded) or closed (the endpoints are included). To retrieve all keys within a certain range, you can use the following code constructs:
MDN
The IDBObjectStore interface of the IndexedDB API represents an object store in a database.
The IDBObjectStore interface of the IndexedDB API represents an object store in a database. Records within an object store are sorted according to their keys. This sorting enables fast insertion, look-up, and ordered retrieval.
MDN
The IDBOpenDBRequest interface of the IndexedDB API provides access to results of requests to open databases using specific event handler attributes.
The IDBOpenDBRequest interface of the IndexedDB API provides access to results of requests to open databases using specific event handler attributes.
MDN
The IDBRequest interface of the IndexedDB API provides access to results of asynchronous requests to databases and database objects using event handler attributes.
The IDBRequest interface of the IndexedDB API provides access to results of asynchronous requests to databases and database objects using event handler attributes. Each reading and writing operation on a database is done using a request.
The request object does not initially contain any information about the result of the operation, but once information becomes available, an event is fired on the request, and the information becomes available through the properties of the IDBRequest instance.
MDN
The IDBTransaction interface of the IndexedDB API provides a static, asynchronous transaction on a database using event handler attributes.
The IDBTransaction interface of the IndexedDB API provides a static, asynchronous transaction on a database using event handler attributes. All reading and writing of data are done within transactions. You actually use IDBDatabase to start transactions and use IDBTransaction to set the mode of the transaction and access an object store and make your request. You can also use it to abort transactions.
MDN
The specification has changed and some not up-to-date browsers only support the deprecated unique attribute, version, from an early draft version.
The specification has changed and some not up-to-date browsers only support the deprecated unique attribute, version, from an early draft version.
MDN
The ImageData interface represents the underlying pixel data of an area of a <canvas> element.
The ImageData interface represents the underlying pixel data of an area of a <canvas> element. It is created using creators on the CanvasRenderingContext2D object associated with the canvas createImageData() and getImageData()). It can also be used to set a part of the canvas (like with putImageData()).
MDN
KeyboardEvent objects describe a user interaction with the keyboard.
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.
Note: The KeyboardEvent indicates just what's happening on a key. When you need to handle text input, use HTML5 input event instead. For example, if user inputs text from hand-writing system like tablet PC, key events may not be fired.
MDN
Warning: keypress event is to be deprecated in favor of beforeinput event eventually
W3C
The LinkStyle interface allows to access the associated CSS style sheet of a node.
The LinkStyle interface allows to access the associated CSS style sheet of a node.
MDN
The Location interface represents the location of the object it is linked to.
The Location interface represents the location 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.
MDN
The MediaElementAudioSourceNode interface represents an audio source consisting of an HTML5 <audio> or <video> element.
The MediaElementAudioSourceNode interface represents an audio source consisting of an HTML5 <audio> or <video> element. It is an AudioNode that acts as an audio source.
A MediaElementSourceNode has no inputs and exactly one output, and is created using the AudioContext.createMediaElementSource method. The amount of channels in the output equals the number of channels of the audio referenced by the HTMLMediaElement used in the creation of the node, or is 1 if the HTMLMediaElement has no audio.
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.
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.
MDN
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.
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.
MDN
The MediaElementAudioSourceNode interface represents an audio destination consisting of a WebRTC MediaStream with a single AudioMediaStreamTrack, which can be used in a similar way to a MediaStream obtained from Navigator.getUserMedia.
The MediaElementAudioSourceNode interface represents an audio destination consisting of a WebRTC MediaStream with a single AudioMediaStreamTrack, which can be used in a similar way to a MediaStream obtained from Navigator.getUserMedia.
It is an AudioNode that acts as an audio destination, created using the AudioContext.createMediaStreamDestination method.
The MediaStreamAudioSourceNode interface represents an audio source consisting of a WebRTC MediaStream (such as a webcam or microphone).
The MediaStreamAudioSourceNode interface represents an audio source consisting of a WebRTC MediaStream (such as a webcam or microphone). It is an AudioNode that acts as an audio source.
A MediaElementSourceNode has no inputs and exactly one output, and is created using the AudioContext.createMediaStreamSource method. The amount of channels in the output equals the number of channels in AudioMediaStreamTrack. If there is no valid media stream, then the number of output channels will be one silent channel.
A MessageEvent is sent to clients using WebSockets when data is received from the server.
A MessageEvent is sent to clients using WebSockets when data is received from the server. This is delivered to the listener indicated by the WebSocket object's onmessage attribute.
MDN
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.
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.
MDN
The DOM MouseEvent interface represents events that occur due to the user interacting with a pointing device (such as a mouse).
The DOM 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. The list of all events using this interface is provided in the Events reference.
MouseEvent derives from UIEvent, which in turn derives from Event.
MDN
MutationObserver provides developers a way to react to changes in a DOM.
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.
MDN
MutationObserverInit is an object which can specify the following properties: NOTE: At the very least, childList, attributes, or characterDatamust be set to true.
MutationObserverInit is an object which can specify the following properties: NOTE: At the very least, childList, attributes, or characterDatamust be set to true. Otherwise, "An invalid or illegal string was specified" error is thrown.
MDN
MutationRecord is the object that will be passed to the observer's callback.
MutationRecord is the object that will be passed to the observer's callback. It has the following properties:
MDN
A collection of nodes returned by Node.attributes (also potentially for DocumentType.entities, DocumentType.notations).
A collection of nodes returned by Node.attributes (also potentially for DocumentType.entities, DocumentType.notations). NamedNodeMaps are not in any particular order (unlike NodeList, although they may be accessed by an index as in an array (they may also be accessed with the item method). A NamedNodeMap object are live and will thus be auto-updated if changes are made to their contents internally or elsewhere.
MDN
The Navigator interface represents the state and the identity of the user agent.
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.
A Navigator object can be retrieved using the read-only Window.navigator property.
MDN
The NavigatorGeolocation interface contains a constructor method allowing objects implementing it to obtain a Geolocation instance.
The NavigatorGeolocation interface contains a constructor method allowing objects implementing it to obtain a Geolocation instance.
There is no object of type NavigatorGeolocation, but some, like Navigator implements it.
MDN
The NavigatorID interface contains methods and properties related to the identity of the browser.
The NavigatorID interface contains methods and properties related to the identity of the browser.
There is no object of type NavigatorID, but other interfaces, like Navigator or WorkerNavigator, implement it.
MDN
NavigatorLanguage contains methods and properties related to the language of the navigator.
NavigatorLanguage contains methods and properties related to the language of the navigator.
MDN
The NavigatorOnLine interface contains methods and properties related to the connectivity status of the browser.
The NavigatorOnLine interface contains methods and properties related to the connectivity status of the browser.
MDN
A Node is an interface from which a number of DOM types inherit, and allows these various types to be treated (or tested) similarly.
A Node is an interface from which a number of DOM types inherit, and allows these various types to be treated (or tested) similarly.
The following interfaces all inherit from Node its methods and properties: Document, Element, CharacterData (which Text, Comment, and CDATASection inherit), ProcessingInstruction, DocumentFragment, DocumentType, Notation, Entity, EntityReference
These interfaces may return null in particular cases where the methods and properties are not relevant. They may throw an exception - for example when adding children to a node type for which no children can exist.
MDN
A NodeFilter interface represents an object used to filter the nodes in a NodeIterator or TreeWalker.
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.
MDN
The NodeIterator interface represents an iterator over the members of a list of the nodes in a subtree of the DOM.
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.
A NodeIterator can be created using the Document.createNodeIterator() method.
MDN
NodeList objects are collections of nodes such as those returned by Node.childNodes and the querySelectorAll method.
NodeList objects are collections of nodes such as those returned by Node.childNodes and the querySelectorAll method.
MDN
The NonDocumentTypeChildNode interface contains methods that are particular to Node objects that can have a parent, but not suitable for DocumentType.
The NonDocumentTypeChildNode interface contains methods that are particular to Node objects that can have a parent, but not suitable for DocumentType.
NonDocumentTypeChildNode is a raw interface and no object of this type can be created; it is implemented by Element, and CharacterData objects.
https://developer.mozilla.org/en-US/docs/Web/API/NonDocumentTypeChildNode
The Web Audio API OfflineAudioCompletionEvent interface represents events that occur when the processing of an OfflineAudioContext is terminated.
The Web Audio API OfflineAudioCompletionEvent interface represents events that occur when the processing of an OfflineAudioContext is terminated. The complete event implements this interface.
The OfflineAudioContext interface is an AudioContext interface representing an audio-processing graph built from linked together AudioNodes.
The OfflineAudioContext interface is an AudioContext interface representing an audio-processing graph built from linked together AudioNodes. In contrast with a standard AudioContext, an OfflineAudioContext doesn't render the audio to the device hardware; instead, it generates it, as fast as it can, and outputs the result to an AudioBuffer.
It is important to note that, whereas you can create a new AudioContext using the new AudioContext() constructor with no arguments, the new OfflineAudioContext() constructor requires three arguments:
new OfflineAudioContext(numOfChannels, length, sampleRate)This works in exactly the same way as when you create a new AudioBuffer with the AudioContext.createBuffer method. For more detail, read Audio buffers: frames, samples and channels from our Basic concepts guide.
The OscillatorNode interface represents a periodic waveform, like a sine wave.
The OscillatorNode interface represents a periodic waveform, like a sine wave. It is an AudioNode audio-processing module that causes a given frequency of sine wave to be created — in effect, a constant tone.
An OscillatorNode is created using the AudioContext.createOscillator method. It always has exactly one output and no inputs, both with the same amount of channels. Its basic property defaults (see AudioNode for definitions) are:
The Page Visibility API lets you know when a webpage is visible or in focus.
The Page Visibility API lets you know when a webpage is visible or in focus. With tabbed browsing, there is a reasonable chance that any given webpage is in the background and thus not visible to the user. When the user minimizes the webpage or moves to another tab, the API sends a visibilitychange event regarding the visibility of the page. You can detect the event and perform some actions or behave differently. For example, if your web app is playing a video, it would pause the moment the user looks at another browser, and plays again when the user returns to the tab. The user does not lose their place in the video and can continue watching.
MDN
Page Visibility (Second Edition) W3C Recommendation 29 October 2013
The PannerNode interface represents the position and behavior of an audio source signal in space.
The PannerNode interface represents the position and behavior of an audio source signal in space. It is an AudioNode audio-processing module describing its position with right-hand Cartesian coordinates, its movement using a velocity vector and its directionality using a directionality cone.
A PannerNode always has exactly one input and one output: the input can be mono or stereo but the output is always stereo (2 channels) — you need stereo sound for panning effects!
The PannerNode brings a spatial position and velocity and a directionality for a given signal.
The ParentNode interface allows to traverse from an element to its children.
The ParentNode interface allows to traverse from an element to its children.
ParentNode is a raw interface and no object of this type can be created; it is implemented by Element, Document, and DocumentFragment objects.
MDN
An object of this type can be obtained by calling the Window.performance read-only attribute.
An object of this type can be obtained by calling the Window.performance read-only attribute.
An object of this type can be obtained by calling the Window.performance read-only attribute.
MDN
The PerformanceNavigation interface represents information about how the navigtion to the current document was done.
The PerformanceNavigation interface represents information about how the navigtion to the current document was done.
MDN
The PerformanceTiming interface represents timing-related performance information for the given page.
The PerformanceTiming interface represents timing-related performance information for the given page.
MDN
The PeriodicWave interface defines a periodic waveform that can be used to shape the output of an OscillatorNode.
The PeriodicWave interface defines a periodic waveform that can be used to shape the output of an OscillatorNode.
PeriodicWave has no inputs or outputs; it is used to create custom oscillators via OscillatorNode.setPeriodicWave. The PeriodicWave itself is created/returned by AudioContext.createPeriodicWave.
The Position interface represents the position of the concerned device at a given time.
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.
MDN
The PositionError interface represents the reason of an error occuring when using the geolocating device.
The PositionError interface represents the reason of an error occuring when using the geolocating device.
MDN
The PositionOptions interface describes the options to use when calling the geolocation backend.
The PositionOptions interface describes the options to use when calling the geolocation backend. The user agent itself doesn't create such an object itself: it is the calling script that create it and use it as a parameter of Geolocation.getCurrentPosition() and Geolocation.watchPosition().
MDN
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).
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).
MDN
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>).
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>).
MDN
The Range interface represents a fragment of a document that can contain nodes and parts of text nodes in a given document.
The Range interface represents a fragment of a document that can contain nodes and parts of text nodes in a given document.
A range can be created using the createRange method of the Document object. Range objects can also be retrieved by using the getRangeAt method of the Selection object. There also is the Range() constructor available.
MDN
The SVGAElement interface provides access to the properties of <a> elements, as well as methods to manipulate them.
The SVGAElement interface provides access to the properties of <a> elements, as well as methods to manipulate them.
MDN
The SVGAngle interface correspond to the <angle> basic data type.
The SVGAngle interface correspond to the <angle> basic data type.
MDN
The SVGAnimatedAngle interface is used for attributes of basic type <angle> which can be animated.
The SVGAnimatedAngle interface is used for attributes of basic type <angle> which can be animated.
MDN
The SVGAnimatedBoolean interface is used for attributes of type boolean which can be animated.
The SVGAnimatedBoolean interface is used for attributes of type boolean which can be animated.
MDN
The SVGAnimatedEnumeration interface is used for attributes whose value must be a constant from a particular enumeration and which can be animated.
The SVGAnimatedEnumeration interface is used for attributes whose value must be a constant from a particular enumeration and which can be animated.
MDN
The SVGAnimatedInteger interface is used for attributes of basic type <integer> which can be animated.
The SVGAnimatedInteger interface is used for attributes of basic type <integer> which can be animated.
MDN
The SVGAnimatedLength interface is used for attributes of basic type <length> which can be animated.
The SVGAnimatedLength interface is used for attributes of basic type <length> which can be animated.
MDN
The SVGAnimatedLengthList interface is used for attributes of type SVGLengthList which can be animated.
The SVGAnimatedLengthList interface is used for attributes of type SVGLengthList which can be animated.
MDN
The SVGAnimatedNumber interface is used for attributes of basic type <Number> which can be animated.
The SVGAnimatedNumber interface is used for attributes of basic type <Number> which can be animated.
MDN
The SVGAnimatedNumber interface is used for attributes which take a list of numbers and which can be animated.
The SVGAnimatedNumber interface is used for attributes which take a list of numbers and which can be animated.
MDN
The SVGAnimatedPoints interface supports elements which have a points attribute which holds a list of coordinate values and which support the ability to animate that attribute.
The SVGAnimatedPoints interface supports elements which have a points attribute which holds a list of coordinate values and which support the ability to animate that attribute.
MDN
The SVGAnimatedPreserveAspectRatio interface is used for attributes of type SVGPreserveAspectRatio which can be animated.
The SVGAnimatedPreserveAspectRatio interface is used for attributes of type SVGPreserveAspectRatio which can be animated.
MDN
The SVGAnimatedRect interface is used for attributes of basic SVGRect which can be animated.
The SVGAnimatedRect interface is used for attributes of basic SVGRect which can be animated.
MDN
The SVGAnimatedString interface is used for attributes of type DOMString which can be animated.
The SVGAnimatedString interface is used for attributes of type DOMString which can be animated.
MDN
The SVGAnimatedTransformList interface is used for attributes which take a list of numbers and which can be animated.
The SVGAnimatedTransformList interface is used for attributes which take a list of numbers and which can be animated.
MDN
The SVGCircleElement interface provides access to the properties of <circle> elements, as well as methods to manipulate them.
The SVGCircleElement interface provides access to the properties of <circle> elements, as well as methods to manipulate them.
MDN
The SVGClipPathElement interface provides access to the properties of <clippath> elements, as well as methods to manipulate them.
The SVGClipPathElement interface provides access to the properties of <clippath> elements, as well as methods to manipulate them.
MDN
The SVGDefsElement interface corresponds to the <defs> element.
The SVGDefsElement interface corresponds to the <defs> element.
MDN
The SVGDescElement interface corresponds to the <desc> element.
The SVGDescElement interface corresponds to the <desc> element.
MDN
All of the SVG DOM interfaces that correspond directly to elements in the SVG language derive from the SVGElement interface.
All of the SVG DOM interfaces that correspond directly to elements in the SVG language derive from the SVGElement interface.
MDN
The SVGEllipseElement interface provides access to the properties of <ellipse> elements, as well as methods to manipulate them.
The SVGEllipseElement interface provides access to the properties of <ellipse> elements, as well as methods to manipulate them.
MDN
The SVGFilterElement interface provides access to the properties of <filter> elements, as well as methods to manipulate them.
The SVGFilterElement interface provides access to the properties of <filter> elements, as well as methods to manipulate them.
MDN
The SVGGElement interface corresponds to the <g> element.
The SVGGElement interface corresponds to the <g> element.
MDN
The SVGGradient interface is a base interface used by SVGLinearGradientElement and SVGRadialGradientElement.
The SVGGradient interface is a base interface used by SVGLinearGradientElement and SVGRadialGradientElement.
MDN
The SVGImageElement interface corresponds to the <image> element.
The SVGImageElement interface corresponds to the <image> element.
MDN
The SVGLength interface correspond to the <length> basic data type.
The SVGLength interface correspond to the <length> basic data type.
MDN
The SVGLengthList defines a list of SVGLength objects.
The SVGLengthList defines a list of SVGLength objects.
MDN
The SVGLineElement interface provides access to the properties of <line> elements, as well as methods to manipulate them.
The SVGLineElement interface provides access to the properties of <line> elements, as well as methods to manipulate them.
MDN
The SVGLinearGradientElement interface corresponds to the <lineargradient> element.
The SVGLinearGradientElement interface corresponds to the <lineargradient> element.
MDN
The marker element defines the graphics that is to be used for drawing arrowheads or polymarkers on a given <path> , <line> , <polyline> or <polygon> element.
The marker element defines the graphics that is to be used for drawing arrowheads or polymarkers on a given <path> , <line> , <polyline> or <polygon> element.
MDN
The SVGMaskElement interface provides access to the properties of <mask> elements, as well as methods to manipulate them.
The SVGMaskElement interface provides access to the properties of <mask> elements, as well as methods to manipulate them.
MDN
Many of SVG's graphics operations utilize 2x3 matrices of the form:
Many of SVG's graphics operations utilize 2x3 matrices of the form:
MDN
The SVGNumber interface correspond to the <number> basic data type.
The SVGNumber interface correspond to the <number> basic data type.
MDN
The SVGNumberList defines a list of SVGNumber objects.
The SVGNumberList defines a list of SVGNumber objects.
MDN
The SVGPathElement interface corresponds to the <path> element.
The SVGPathElement interface corresponds to the <path> element.
MDN
The SVGPatternElement interface corresponds to the <pattern> element.
The SVGPatternElement interface corresponds to the <pattern> element.
MDN
The SVGPolygonElement interface provides access to the properties of <polygon> elements, as well as methods to manipulate them.
The SVGPolygonElement interface provides access to the properties of <polygon> elements, as well as methods to manipulate them.
MDN
The SVGPolylineElement interface provides access to the properties of <polyline> elements, as well as methods to manipulate them.
The SVGPolylineElement interface provides access to the properties of <polyline> elements, as well as methods to manipulate them.
MDN
The SVGPreserveAspectRatio interface corresponds to the preserveAspectRatio attribute, which is available for some of SVG's elements.
The SVGPreserveAspectRatio interface corresponds to the preserveAspectRatio attribute, which is available for some of SVG's elements.
MDN
The SVGRadialGradientElement interface corresponds to the <radialgradient> element.
The SVGRadialGradientElement interface corresponds to the <radialgradient> element.
MDN
The SVGRect represents rectangular geometry.
The SVGRect represents rectangular geometry. Rectangles are defined as consisting of a (x,y) coordinate pair identifying a minimum X value, a minimum Y value, and a width and height, which are usually constrained to be non-negative.
MDN
The SVGRectElement interface provides access to the properties of <rect> elements, as well as methods to manipulate them.
The SVGRectElement interface provides access to the properties of <rect> elements, as well as methods to manipulate them.
MDN
The SVGSVGElement interface provides access to the properties of <svg> elements, as well as methods to manipulate them.
The SVGSVGElement interface provides access to the properties of <svg> elements, as well as methods to manipulate them. This interface contains also various miscellaneous commonly-used utility methods, such as matrix operations and the ability to control the time of redraw on visual rendering devices.
MDN
The SVGScriptElement interface corresponds to the SVG <script> element.
The SVGScriptElement interface corresponds to the SVG <script> element.
MDN
The SVGStopElement interface corresponds to the <stop> element.
The SVGStopElement interface corresponds to the <stop> element.
MDN
The SVGStringList defines a list of DOMString objects.
The SVGStringList defines a list of DOMString objects.
MDN
The SVGStylable interface is implemented on all objects corresponding to SVG elements that can have style, class and presentation attributes specified on them.
The SVGStylable interface is implemented on all objects corresponding to SVG elements that can have style, class and presentation attributes specified on them.
MDN
The SVGStyleElement interface corresponds to the SVG <style> element.
The SVGStyleElement interface corresponds to the SVG <style> element.
MDN
The SVGSwitchElement interface corresponds to the <switch> element.
The SVGSwitchElement interface corresponds to the <switch> element.
MDN
The SVGSymbolElement interface corresponds to the <symbol> element.
The SVGSymbolElement interface corresponds to the <symbol> element.
MDN
The SVGTSpanElement interface provides access to the properties of <tspan> elements, as well as methods to manipulate them.
The SVGTSpanElement interface provides access to the properties of <tspan> elements, as well as methods to manipulate them.
MDN
Interface SVGTests defines an interface which applies to all elements which have attributes requiredFeatures, requiredExtensions and systemLanguage.
Interface SVGTests defines an interface which applies to all elements which have attributes requiredFeatures, requiredExtensions and systemLanguage.
MDN
The SVGTextElement interface corresponds to the <text> elements.
The SVGTextElement interface corresponds to the <text> elements.
MDN
The SVGTextPositioningElement interface is inherited by text-related interfaces: SVGTextElement, SVGTSpanElement, SVGTRefElement and SVGAltGlyphElement.
The SVGTextPositioningElement interface is inherited by text-related interfaces: SVGTextElement, SVGTSpanElement, SVGTRefElement and SVGAltGlyphElement.
MDN
The SVGTitleElement interface corresponds to the <title> element.
The SVGTitleElement interface corresponds to the <title> element.
MDN
SVGTransform is the interface for one of the component transformations within an SVGTransformList; thus, an SVGTransform object corresponds to a single component (e.g., scale(…) or matrix(…)) within a transform attribute.
SVGTransform is the interface for one of the component transformations within an SVGTransformList; thus, an SVGTransform object corresponds to a single component (e.g., scale(…) or matrix(…)) within a transform attribute.
MDN
The SVGTransformList defines a list of SVGTransform objects.
The SVGTransformList defines a list of SVGTransform objects.
MDN
Interface SVGTransformable contains properties and methods that apply to all elements which have attribute transform.
Interface SVGTransformable contains properties and methods that apply to all elements which have attribute transform.
MDN
The SVGUseElement interface provides access to the properties of <use> elements, as well as methods to manipulate them.
The SVGUseElement interface provides access to the properties of <use> elements, as well as methods to manipulate them.
MDN
The SVGViewElement interface provides access to the properties of <view> elements, as well as methods to manipulate them.
The SVGViewElement interface provides access to the properties of <view> elements, as well as methods to manipulate them.
MDN
Selection is the class of the object returned by window.getSelection() and other methods.
Selection is the class of the object returned by window.getSelection() and other methods. It represents the text selection in the greater page, possibly spanning multiple elements, when the user drags over static text and other parts of the page. For information about text selection in an individual text editing element, see Input, TextArea and document.activeElement which typically return the parent object returned from window.getSelection().
MDN
The StereoPannerNode interface of the Web Audio API represents a simple stereo panner node that can be used to pan an audio stream left or right.
The StereoPannerNode interface of the Web Audio API represents a simple stereo panner node that can be used to pan an audio stream left or right. It is an AudioNode audio-processing module that positions an incoming audio stream in a stereo image using a low-cost equal-power panning algorithm.
The pan property takes a unitless value between -1 (full left pan) and 1 (full right pan).
This interface was introduced as a much simpler way to apply a simple panning effect than having to use a full PannerNode.
The DOM Storage mechanism is a means through which string key/value pairs can be securely stored and later retrieved for use.
The DOM Storage mechanism is a means through which string key/value pairs can be securely stored and later retrieved for use. The goal of this addition is to provide a comprehensive means through which interactive applications can be built (including advanced abilities, such as being able to work "offline" for extended periods of time).
MDN
A StorageEvent is sent to a window when a storage area changes.
A StorageEvent is sent to a window when a storage area changes.
MDN
An object implementing the StyleSheet interface represents a single style sheet.
An object implementing the StyleSheet interface represents a single style sheet. CSS style sheets will further implement the more specialized CSSStyleSheet interface.
MDN
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.
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.
New documents have a single Text node for each block of text. Over time, more Text nodes may be created as the document's content changes. The Node.normalize() method merges adjacent Text objects back into a single node for each block of text.
MDN
The TextMetrics interface represents the dimension of a text in the canvas, as created by the CanvasRenderingContext2D.measureText() method.
The TextMetrics interface represents the dimension of a text in the canvas, as created by the CanvasRenderingContext2D.measureText() method.
MDN
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.
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.
MDN
A Touch object represents a single point of contact between the user and a touch-sensitive interface device (which may be, for example, a touchscreen or a trackpad).
A Touch object represents a single point of contact between the user and a touch-sensitive interface device (which may be, for example, a touchscreen or a trackpad).
Note: Many of these values are hardware-dependent; for example, if the device doesn't have a way to detect the amount of pressure placed on the surface, the force value will always be 1.0. This may also be the case for radiusX and radiusY; if the hardware reports only a single point, these values will be 1.
MDN
A TouchEvent represents an event sent when the state of contacts with a touch-sensitive surface changes.
A TouchEvent 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.
Touches are represented by the Touch object; each touch is described by a position, size and shape, amount of pressure, and target element. Lists of touches are represented by TouchList objects.
MDN
A TouchList represents a list of all of the points of contact with a touch surface; for example, if the user has three fingers on the screen (or trackpad), the corresponding TouchList would have one Touch object for each finger, for a total of three entries.
A TouchList represents a list of all of the points of contact with a touch surface; for example, if the user has three fingers on the screen (or trackpad), the corresponding TouchList would have one Touch object for each finger, for a total of three entries.
MDN
The Transferable interface represents an object that can be transfered between different execution contexts, like the main thread and Web workers.
The Transferable interface represents an object that can be transfered between different execution contexts, like the main thread and Web workers.
This is an abstract interface and there isn't any object of this type. It also doesn't define any method or property: it is merely a tag indicating objects that can be used in specific conditions, like to be transfered to a Worker using the Worker.postMessage() method.
MDN
The TransitionEvent interface represents events providing information related to transitions.
The TransitionEvent interface represents events providing information related to transitions.
MDN
The TreeWalker object represents the nodes of a document subtree and a position within them.
The TreeWalker object represents the nodes of a document subtree and a position within them.
A TreeWalker can be created using the Document.createTreeWalker() method.
MDN
The DOM UIEvent represents simple user interface events.
The DOM UIEvent represents simple user interface events.
MDN
The URL interface represent an object providing static methods used for creating object URLs.
The URL interface represent an object providing static methods used for creating object URLs.
MDN
The DOM ValidityState interface represents the validity states that an element can be in, with respect to constraint validation.
The DOM 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.
MDN
The WaveShaperNode interface represents a non-linear distorter.
The WaveShaperNode interface represents a non-linear distorter. It is an AudioNode that uses a curve to apply a wave shaping distortion to the signal. Beside obvious distortion effects, it is often used to add a warm feeling to the signal.
A WaveShaperNode always has exactly one input and one output.
Holds information returned by WebGLRenderingContext#getActiveAttrib and WebGLRenderingContext#getActiveUniform.
Holds information returned by WebGLRenderingContext#getActiveAttrib and WebGLRenderingContext#getActiveUniform.
An opaque type representing a WebGL buffer.
An opaque type representing a WebGL buffer.
Contains drawing surface attributes.
Contains drawing surface attributes.
An opaque type representing a WebGL framebuffer.
An opaque type representing a WebGL framebuffer.
An opaque type representing a WebGL program.
An opaque type representing a WebGL program.
An opaque type representing a WebGL renderbuffer.
An opaque type representing a WebGL renderbuffer.
An opaque type representing a WebGL shader.
An opaque type representing a WebGL shader.
Represents information about the implementation's precision for given parameters.
Represents information about the implementation's precision for given parameters. See WebGLRenderingContext#getShaderPrecisionFormat.
An opaque type representing a WebGL texture.
An opaque type representing a WebGL texture.
An opaque type representing a WebGL uniform location.
An opaque type representing a WebGL uniform location.
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.
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.
MDN
The DOM WheelEvent represents events that occur due to the user moving a mouse wheel or similar input device.
The DOM WheelEvent represents events that occur due to the user moving a mouse wheel or similar input device.
MDN
The window object represents the window itself.
The window object represents the window itself. The document property of a window points to the DOM document loaded in that window. A window for a given document can be obtained using the document.defaultView property.
In a tabbed browser, such as Firefox, each tab contains its own window object (and if you're writing an extension, the browser window itself is a separate window too - see Working with windows in chrome code for more information). That is, the window object is not shared between tabs in the same window. Some methods, namely window.resizeTo and window.resizeBy apply to the whole window and not to the specific tab the window object belongs to. Generally, anything that can't reasonably pertain to a tab pertains to the window instead.
MDN
The Worker interface represents a background task that can be easily created and can send messages back to their creators.
The Worker interface represents a background task that can be easily created and can send messages back to their creators. Creating a worker is as simple as calling the Worker() constructor, specifying a script to be run in the worker thread.
Of note is the fact that workers may in turn spawn new workers as long as those workers are hosted within the same origin as the parent page. In addition, workers may use XMLHttpRequest for network I/O, with the exception that the responseXML and channel attributes on XMLHttpRequest always return null.
MDN
The WorkerGlobalScope interface of the Web Workers API is an interface representing the scope of any worker.
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.
This interface is usually specialized by each worker type: DedicatedWorkerGlobalScope for dedicated workers, SharedWorkerGlobalScope for shared workers, and ServiceWorkerGlobalScope for ServiceWorker. The self property returns the specialized scope for each context.
MDN
The WorkerLocation interface defines the absolute location of the script executed by the Worker.
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.
MDN
The WorkerNavigator interface represents a subset of the Navigator interface allowed to be accessed from a Worker.
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
MDN
XMLHttpRequest is a JavaScript object that was designed by Microsoft and adopted by Mozilla, Apple, and Google.
XMLHttpRequest is a JavaScript object that was designed by Microsoft and adopted by Mozilla, Apple, and Google. It's now being standardized in the W3C. It provides an easy way to retrieve data from a URL without having to do a full page refresh. A Web page can update just a part of the page without disrupting what the user is doing. XMLHttpRequest is used heavily in AJAX programming.
Despite its name, XMLHttpRequest can be used to retrieve any type of data, not just XML, and it supports protocols other than HTTP (including file and ftp).
MDN
XMLHttpRequestEventTarget is the interface that describes the event handlers you can implement in an object that will handle events for an XMLHttpRequest.
XMLHttpRequestEventTarget is the interface that describes the event handlers you can implement in an object that will handle events for an XMLHttpRequest.
MDN
(Since version 0.9.0) Import from scala.scalajs.js instead.
(Since version 0.9.0) Import from org.scalajs.dom.experimental.serviceworkers instead.
(Since version 0.9.0) Import from org.scalajs.dom.experimental.serviceworkers instead.
(Since version 0.9.0) Import from org.scalajs.dom.experimental.serviceworkers instead.
When dragging, there are several operations that may be performed.
When dragging, there are several operations that may be performed. The copy operation is used to indicate that the data being dragged will be copied from its present location to the drop location. The move operation is used to indicate that the data being dragged will be moved, and the link operation is used to indicate that some form of relationship or connection will be created between the source and drop locations.
You can specify which of the three operations are allowed for a drag source
by setting the effectAllowed property within a dragstart event listener.
Note that these values must be used exactly as defined below.
https://developer.mozilla.org/en-US/docs/Web/Guide/HTML/Drag_operations#drageffects
Factory for MutationObserverInit objects.
The SVGAngle interface correspond to the <angle> basic data type.
The SVGAngle interface correspond to the <angle> basic data type.
MDN
The SVGGradient interface is a base interface used by SVGLinearGradientElement and SVGRadialGradientElement.
The SVGGradient interface is a base interface used by SVGLinearGradientElement and SVGRadialGradientElement.
MDN
The SVGLength interface correspond to the <length> basic data type.
The SVGLength interface correspond to the <length> basic data type.
MDN
The SVGPreserveAspectRatio interface corresponds to the preserveAspectRatio attribute, which is available for some of SVG's elements.
The SVGPreserveAspectRatio interface corresponds to the preserveAspectRatio attribute, which is available for some of SVG's elements.
MDN
SVGTransform is the interface for one of the component transformations within an SVGTransformList; thus, an SVGTransform object corresponds to a single component (e.g., scale(…) or matrix(…)) within a transform attribute.
SVGTransform is the interface for one of the component transformations within an SVGTransformList; thus, an SVGTransform object corresponds to a single component (e.g., scale(…) or matrix(…)) within a transform attribute.
MDN
WebGLRenderingContext objects expose the WebGLRenderingContext interface, the principal interface in WebGL which provides special properties and methods to manipulate the 3D content rendered in an HTML canvas element.
WebGLRenderingContext objects expose the WebGLRenderingContext interface, the principal interface in WebGL which provides special properties and methods to manipulate the 3D content rendered in an HTML canvas element.
MDN