Track kind 属性
实例
例子 1
获取文本轨道的种类:
var x = document.getElementById("myTrack").kind;
x 的结果可能是:
subtitles
例子 2
设置文本轨道的种类:
document.getElementById("myTrack").kind = "chapters";
语法
返回 kind 属性:
trackObject.kind
设置 kind 属性:
trackObject.kind = "captions|chapters|descriptions|metadata|subtitles"
属性值
值 | 描述 |
---|---|
captions | 轨道定义对话和音效的翻译(适合聋人用户)。 |
chapters | 轨道定义章节标题(适合导航媒体资源)。 |
descriptions | Track defines the text description of video content (suitable for blind users). |
metadata | Track defines the content used by the script. Not visible to users. |
subtitles | Track defines subtitles, used to display subtitles in videos. |
Technical details
Return value: | String value, indicating the type of text track. |
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Browser support
Chrome | Edge | Firefox | Safari | Opera |
---|---|---|---|---|
Chrome | Edge | Firefox | Safari | Opera |
Supported | 10.0 | Not supported | Not supported | Supported |