Baseline Widely available
addCue()
㯠TextTrack
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cue
TextTrackCue
ã§ãã
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ã¤ã³ã¿ã¼ãã§ã¤ã¹ã¯ã VTTCue
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ãç¶æ¿ãããã¥ã¼åã®ããããã使ç¨ãããã¨ã«ãªãã¾ãã
undefined
ã§ãã
InvalidStateError
DOMException
ãã® TextTrackList
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¥åããã TextTrackCue
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以ä¸ã®ä¾ã§ã¯ã addCue()
ã使ç¨ãã¦ãåç»ã®ããã¹ããã©ãã¯ã« 2 ã¤ã®ãã¥ã¼ã追å ãã¦ãã¾ãã
let video = document.querySelector("video");
let track = video.addTextTrack("captions", "Captions", "en");
track.mode = "showing";
track.addCue(new VTTCue(0, 0.9, "Hildy!"));
track.addCue(new VTTCue(1, 1.4, "How are you?"));
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