addTextTrack method
Implementation
TextTrack addTextTrack(TextTrackKind kind,
[String? label = '', String? language = '']) =>
js_util.callMethod(this, 'addTextTrack', [kind.value, label, language]);
TextTrack addTextTrack(TextTrackKind kind,
[String? label = '', String? language = '']) =>
js_util.callMethod(this, 'addTextTrack', [kind.value, label, language]);