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DOMTokenList.supports()

API DOM Method Reference

Element.accessKey

The Element.accessKey property sets the keystroke by which a user can press to jump to this element.
API NeedsContent Property

Element.currentStyle

API NeedsExample NeedsMobileBrowserCompatibility Property

Encoding API

API Reference Référence

Event.createEvent()

Creates a new event, which must then be initialized by calling its init() method.
API DOM Event Method

Event.defaultPrevented

Returns a boolean indicating whether or not event.preventDefault() was called on the event.
API DOM Event Property

FileHandle API

API Files Reference

FileReaderSync

The FileReaderSync interface allows to read File or Blob objects in a synchronous way.
API NeedsBrowserCompatibility NeedsCompatTable NeedsMarkupWork

Using geolocation

The geolocation API allows the user to provide their location to web applications if they so desire. For privacy reasons, the user is asked for permission to report location information.
Geolocation API Guide Intermediate

GlobalEventHandlers.onreset

The GlobalEventHandlers.onreset property contains an EventHandler triggered when a reset event is received.
API DOM Property

GlobalEventHandlers.onresize

The GlobalEventHandlers.onresize property contains an EventHandler triggered when a resize event is received.
API DOM Property

HTMLCanvasElement.height

The HTMLCanvasElement.height property is a positive integer reflecting the height HTML attribute of the <canvas> element interpreted in CSS pixels. When the attribute is not specified, or if it is set to an invalid value, like a negative, the default value of 150 is used.
API Canvas HTMLCanvasElement Property

HTMLCanvasElement.mozOpaque

The HTMLCanvasElement.mozOpaque property is a Boolean reflecting the moz-opaque HTML attribute of the <canvas> element. It lets the canvas know whether or not translucency will be a factor. If the canvas knows there's no translucency, painting performance can be optimized.
API Canvas HTMLCanvasElement Property

HTMLCanvasElement.width

The HTMLCanvasElement.width property is a positive integer reflecting the width HTML attribute of the <canvas> element interpreted in CSS pixels. When the attribute is not specified, or if it is set to an invalid value, like a negative, the default value of 300 is used.
API Canvas HTMLCanvasElement Property

HTMLElement.outerText

API DOM Property Reference

IDBDatabaseException

In the IndexedDB API, an IDBDatabaseException object represents exception conditions that can be encountered while performing database operations.
API Obsolete Reference

IDBFactory.open()

If an error occurs while the database connection is being opened, then an error event is fired on the request object returned from this method.
API Method Obsolete Reference

IDBIndex.getAllKeys()

An IDBRequest object on which subsequent events related to this operation are fired.
API IndexedDB Method Reference

IDBObjectStore.delete()

An IDBRequest object on which subsequent events related to this operation are fired. The request.result attribute is set to undefined.
API IndexedDB Method Reference

ImageBitmapFactories.createImageBitmap()

The createImageBitmap method accepts a variety of different image sources, and returns a Promise which resolves to an ImageBitmap. Optionally the source is cropped to the rectangle of pixels originating at (sx, sy) with width sw, and height sh.
API Canvas Method Reference