Document.fullscreenElement
The
Document.fullscreenElement
read-only
property returns the Element
that is currently being presented in
full-screen mode in this document, or null
if full-screen mode is not
currently in use.
Although this property is read-only, it will not throw if it is modified (even in strict mode); the setter is a no-operation and it will be ignored.
Syntax
document.fullscreenElement
Return value
The Element
object that's currently in full-screen mode; if full-screen
mode isn't currently in use by the document
>, the returned
value is null
.
Example
This example presents a function, isVideoInFullscreen()
, which looks at
the value returned by fullscreenElement
; if the document is in full-screen
mode (fullscreenElement
isn't null
) and the full-screen
element's nodeName
is VIDEO
, indicating a
<video>
element, the function returns true
, indicating
that the video is in full-screen mode.
function isVideoInFullscreen() {
if (document.fullscreenElement && document.fullscreenElement.nodeName == 'VIDEO') {
return true;
}
return false;
}
Specifications
Browser compatibility
BCD tables only load in the browser