HTMLMediaElement.duration
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.
HTMLMediaElement.duration
属性以秒为单位给出媒体的长度,如果没有媒体数据可用,则为零。
语法
js
var myDuration = audioOrVideo.duration;
值
如果媒体数据可用但长度未知,则此值为 NaN。如果媒体流式传输且没有预定义长度,则值为 Inf。
例子
js
var obj = document.createElement("video");
console.log(obj.duration); // NaN
规范
Specification |
---|
HTML # dom-media-duration-dev |
浏览器兼容性
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
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duration |
Legend
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- Full support
- Full support
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.
参见
- 定义它的接口,
HTMLMediaElement
。