HTML DOM track 对象

追踪对象

Track 对象表示 HTML <track> 元素。

您可以使用 getElementById() 访问 <track> 元素：

var x = document.getElementById("myTrack");

您可以使用 document.createElement() 方法创建 <track> 元素：

var x = document.createElement("TRACK");

Property	Description
default	Sets or returns the default state of the track
kind	Sets or returns the value of the kind attribute of the track
label	Sets or returns the value of the label attribute of the track
readyState	Returns the current state of the track resource
src	Sets or returns the value of the src attribute of the track
srclang	Sets or returns the value of the srclang attribute of the track
track	Returns a TextTrack object representing the track element's text track data

Track 对象还支持标准特性和事件。