Baseline Widely available
track 㯠TextTrackCue ã¤ã³ã¿ã¼ãã§ã¤ã¹ã®èªã¿åãå°ç¨ããããã£ã§ããã®ãã¥ã¼ãæå±ãã TextTrack ãªãã¸ã§ã¯ããè¿ãã¾ãã
TextTrack ãªãã¸ã§ã¯ãã§ãã
以ä¸ã®ä¾ã§ã¯ãæ°ãã VTTCue ï¼TextTrackCue ãç¶æ¿ï¼ãä½æããããããã©ãã¯ã«è¿½å ãã¦ãã¾ãã track ã®å¤ã¯ã³ã³ã½ã¼ã«ã«è¡¨ç¤ºããã¾ãã
let video = document.querySelector("video");
let captiontrack = video.addTextTrack("captions", "Captions", "en");
captiontrack.mode = "showing";
let cue1 = new VTTCue(0, 0.9, "Hildy!");
captiontrack.addCue(cue1);
console.log(cue1.track); // a TextTrack object.
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