HTMLMediaElement: duration property
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The read-only HTMLMediaElement
property duration
indicates the length of the element's
media in seconds.
Value
A double-precision floating-point value indicating the duration of the media in
seconds. If no media data is available, the value NaN
is returned. If the
element's media doesn't have a known duration—such as for live media streams—the value
of duration
is +Infinity
.
Examples
js
const obj = document.createElement("video");
console.log(obj.duration); // NaN
Specifications
Specification |
---|
HTML Standard # dom-media-duration-dev |
Browser compatibility
BCD tables only load in the browser
See also
- Web media technologies
-
HTMLMediaElement.currentTime
: The current playback position of the media - The
<audio>
and<video>
elements