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.
Theread-onlyHTMLMediaElementpropertyduration indicates the length of the element'smedia in seconds.
Value
A double-precision floating-point value indicating the duration of the media inseconds. If no media data is available, the valueNaN is returned. If theelement's media doesn't have a known duration—such as for live media streams—the valueofduration isInfinity.
Examples
js
const obj = document.createElement("video");console.log(obj.duration); // NaNSpecifications
| Specification |
|---|
| HTML # dom-media-duration-dev |
Browser compatibility
See also
- Web media technologies
HTMLMediaElement.currentTime: The current playback position of themedia- The
<audio>and<video>elements