SVGNumberList: getItem() method

The getItem() method of the SVGNumberList interface returns the specified item from the list. The returned item is the item itself and not a copy. Any changes made to the item are …

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Temporal.PlainTime.prototype.round()

The round() method of Temporal.PlainTime instances returns a new Temporal.PlainTime object representing this time rounded to the…

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Touch

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

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WheelEvent: deltaMode property

The WheelEvent.deltaMode read-only property returns an unsigned long representing the unit of the delta values scroll amount. Permitted values are:

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BackgroundFetchRegistration: matchAll() …

The matchAll() method of the BackgroundFetchRegistration interface returns an array of matching BackgroundFetchRecord objects.

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AudioBufferSourceNode: detune property

The detune property of the AudioBufferSourceNode interface is a k-rate AudioParam representing detuning of oscillation in cents.

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HTMLDetailsElement: open property

The open property of the HTMLDetailsElement interface is a boolean value reflecting the open HTML attribute, indicating whether the <details>'s contents (not counting the <summ…

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WebGLRenderingContext: compileShader() m…

The WebGLRenderingContext.compileShader() method of the WebGL API compiles a GLSL shader into binary data so that it can be used by a WebGLProgram.

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`::slotted()` CSS pseudo-element

The ::slotted() CSS pseudo-element represents any element that has been placed into a slot inside an HTML template (see Using templates and slots for more information…

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SVGPathElement

The SVGPathElement interface corresponds to the <path> element.

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Node: textContent property

The textContent property of the Node interface represents the text content of the node and its descendants.

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IDBObjectStore: getAllRecords() method

The getAllRecords() method of the IDBObjectStore interface retrieves all records (including primary keys and values) from the object store.

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Video processing concepts

Before working with the WebCodecs API, it is helpful to understand some foundational concepts around how video works, how it is compressed, and how video files are stru…

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HTMLSourceElement: width property

The width property of the HTMLSourceElement interface is a non-negative number indicating the width of the image resource in CSS pixels.

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`<line-width>` CSS type

The <line-width> enumerated value type represents the length or keyword value that defines the width of a line, or the lack of a line. The <line-width> keyword values are used i…

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WorkerGlobalScope: offline event

The offline event of the WorkerGlobalScope fires when the device loses connection to the internet.

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HTMLTextAreaElement: cols property

The cols property of the HTMLTextAreaElement interface is a positive integer representing the visible width of the multi-line text control, in average character widths. It re…

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XSLTProcessor

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

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HTMLIFrameElement: allow property

The allow property of the HTMLIFrameElement interface indicates the Permissions Policy specified for this <iframe> element. The policy defines what features are available to th…

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`<blockquote>` HTML block quotatio…

The <blockquote> HTML element indicates that the enclosed text is an extended quotation. Usually, this is rendered visually by indentation (see Notes for how to …

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`mask-border-mode` CSS property

The mask-border-mode CSS property specifies the blending mode used in a mask border.

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ExtendableMessageEvent: source property

The source read-only property of the ExtendableMessageEvent interface returns a reference to the Client object from which the message was sent.

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HTMLFormControlsCollection: namedItem() …

The HTMLFormControlsCollection.namedItem() method returns the RadioNodeList or the Element in the collection whose name or id match the specified name, or …

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WebGLRenderingContext: copyTexImage2D() …

The copyTexImage2D() method of the WebGLRenderingContext interface of the WebGL API copies pixels from the current WebGLFramebuffer into a 2D texture image…

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GPUQuerySet: count property

The count read-only property of the GPUQuerySet interface is a number specifying the number of queries managed by the GPUQuerySet.

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TransformStream: readable property

The readable read-only property of the TransformStream interface returns the ReadableStream instance controlled by this TransformStream. This stream emits the transformed out…

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`text-box` CSS property

The text-box CSS property is a shorthand that corresponds to the text-box-trim and text-box-edge properties, which together specify the amount of space to trim from the block-…

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DynamicsCompressorNode: attack property

The attack property of the DynamicsCompressorNode interface is a k-rate AudioParam representing the amount of time, in seconds, required to reduce the gain by 10 dB…

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`font-stretch` CSS property

The font-stretch CSS property selects a normal, condensed, or expanded face from a font.

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SpeechSynthesis: cancel() method

The cancel() method of the SpeechSynthesis interface removes all utterances from the utterance queue.

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