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 # dom-media-duration-dev |
Browser compatibility
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See also
- Web media technologies
HTMLMediaElement.currentTime: The current playback position of the media- The
<audio>and<video>elements