The cues read-only property of the TextTrack interface returns a TextTrackCueList object containing all of the track's cues.

A TextTrackCueList object.

In the following example two cues are added to a video text track using addCue(). The value of cues is printed to the console. The returned TextTrackCueList object contains the two cues.

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?"));
console.log(track.cues);