HTML Audio / Video DOM textTracks property
HTML Audio / Video DOM Reference
Examples
Obtaining the number of tracks available text:
myVid=document.getElementById("video1");
alert(myVid.textTracks.length);
alert(myVid.textTracks.length);
try it"
Definition and Usage
textTracks property returns TextTrackList object.
TextTrackList object represents the audio / video available text track.
Each track is made available text TextTrack object represents.
Browser Support
Internet Explorer 10, Opera, Chrome and Safari 6 support textTracks property.
Note: 9 and earlier versions of Internet Explorer does not support textTracks property.
grammar
audio|video .textTracks
return value
类型 | 描述 |
---|---|
TextTrackList 对象 | 表示音频/视频的可用文本轨道。 TextioTrackList 对象:
注释:第一个可用文本轨道的下标 index 是 0。 |
TextTrack 对象 | 表示一个文本轨道。 TextTrack 对象的属性:
|
HTML Audio / Video DOM Reference