title | short-title | slug | page-type | browser-compat |
---|---|---|---|---|
TextTrackCueList: length property |
length |
Web/API/TextTrackCueList/length |
web-api-instance-property |
api.TextTrackCueList.length |
{{APIRef("WebVTT")}}
The length
read-only property of the {{domxref("TextTrackCueList")}} interface returns the number of cues in the list.
An unsigned long
which is the number of cues in the list.
The {{domxref("TextTrack.cues")}} property returns a {{domxref("TextTrackCueList")}} containing the current cues for that particular track. Calling cues.length
returns the number of cues in the list. Using the WebVTT track below, the value of length
is 5.
WEBVTT
first
00:00:00.000 --> 00:00:00.999 line:80%
Hildy!
second
00:00:01.000 --> 00:00:01.499 line:80%
How are you?
third
00:00:01.500 --> 00:00:02.999 line:80%
Tell me, is the ruler of the universe in?
fourth
00:00:03.000 --> 00:00:04.299 line:80%
Yes, they're in - in a bad humor
fifth
00:00:04.300 --> 00:00:06.000 line:80%
Somebody must've stolen the crown jewels
const video = document.getElementById("video");
video.onplay = () => {
console.log(video.textTracks[0].cues.length); // 5
};
{{Specifications}}
{{Compat}}