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The Document.origin read-only property returns the document's origin. In most cases, this property is equivalent to document.defaultView.location.origin.
API DOM Experimental Expérimental Interface Property Read-only


The Document.visibilityState read-only property returns the visibility of the document, that is in which context this element is now visible. It is useful to know if the document is in the background or an invisible tab, or only loaded for pre-rendering. Possible values are:
Document DOM Page Visibility API Property Read-only Reference Web


The File.lastModifiedDate read-only property returns the last modified date of the file. Files without a known last modified date returns the current date .
API Deprecated File API Files Property Read-only Reference


The History.length read-only property returns an Integer representing the number of elements in the session history, including the currently loaded page. For example, for a page loaded in a new tab this property returns 1.
API History API HTML Property Read-only Reference Référence


The HTMLElement.offsetLeft read-only method returns the number of pixels that the upper left corner of the current element is offset to the left within the HTMLElement.offsetParent node.
API CSSOM View NeedsCompatTable NeedsMarkupWork Property Read-only Reference


The HTMLElement.offsetTop read-only property returns the distance of the current element relative to the top of the offsetParent node.
API CSSOM View NeedsMarkupWork Property Read-only Reference


The HTMLHyperlinkElementUtils.origin read-only property is a USVString containing the Unicode serialization of the origin of the represented URL, that is:
API Experimental HTMLHyperlinkElementUtils Property Read-only Reference URL API


The HTMLHyperlinkElementUtils.password property is a USVString containing the password specified before the domain name.
API Experimental HTMLHyperlinkElementUtils Property Read-only URL API


The contentWindow property returns the Window object of an <iframe> element. You can use this Window object to access the iframe's document and its internal DOM. This attribute is read-only, but its properties can be manipulated like the global Window object.
API DOM HTML DOM Property Read-only Reference Référence Web


The read-only HTMLLabelElement.control property returns a reference to the control (in the form of an object of type HTMLElement or one of its derivatives) with which the <label> element is associated, or null if the label isn't associated with a control.
control Forms HTML DOM HTMLLabelElement Property Read-only Reference


The read-only HTMLLabelElement.form property returns an HTMLFormElement object which represents the form of which the label's associated control is a part, or null if there is either no associated control, or if that control isn't in a form.
form Forms HTML DOM HTMLLabelElement Property Read-only Reference


The HTMLLinkElement.relList read-only property reflects the rel attribute. It is a live DOMTokenList containing the set of link types indicating the relationship between the resource represented by the <link> element and the current document.
API HTML DOM HTMLLInkElement Property Read-only Reference


The HTMLMediaElement.buffered read-only property returns a new TimeRanges object that indicates the ranges of the media source that the browser has buffered (if any) at the moment the buffered property is accessed.
API HTML DOM HTMLMediaElement Property Read-only Web


The HTMLMediaElement.currentSrc property contains the absolute URL of the chosen media resource. This could happen, for example, if the web server selects a media file based on the resolution of the user's display. The value is an empty string if the networkState property is EMPTY.
API HTML DOM HTMLMediaElement Property Read-only Web


The HTMLMediaElement.ended indicates whether the media element has ended playback.
API HTML DOM HTMLMediaElement Property Read-only Web


The HTMLMediaElement.error is the MediaError object for the most recent error, or null if there has not been an error.
API HTML DOM HTMLMediaElement Property Read-only Web