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The HTMLMediaElement.duration property gives the length of the media in seconds, or zero if no media data is available.
Syntax
var myDuration = audioOrVideo.duration
Value
A double. If the media data is available but the length is unknown, this value is NaN. If the media is streamed and has no predefined length, the value is Inf.
Example
var obj = document.createElement('video');
console.log(obj.duration); // NaN
Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'HTMLMediaElement.duration' in that specification. |
Living Standard | |
| HTML5 The definition of 'HTMLMediaElement.duration' in that specification. |
Recommendation | Initial definition. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
| Desktop | Mobile | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
duration | Chrome Full support 43 | Edge Full support 12 | Firefox Full support 3.5 | IE Full support 9 | Opera Full support Yes | Safari Full support 6 | WebView Android Full support 43 | Chrome Android Full support 43 | Edge Mobile Full support Yes | Firefox Android Full support Yes | Opera Android Full support Yes | Safari iOS Full support Yes | Samsung Internet Android ? |
Legend
- Full support
- Full support
- Compatibility unknown
- Compatibility unknown
See also
- The interface defining it,
HTMLMediaElement.
