files/en-us/web/api/mediastream/removetrack/index.md
{{APIRef("Media Capture and Streams")}}
The removeTrack() method of the {{domxref("MediaStream")}} interface removes a
{{domxref("MediaStreamTrack")}} from a stream.
removeTrack(track)
track
None ({{jsxref("undefined")}}).
The following example demonstrates how to remove the audio and video tracks from a {{domxref("MediaStream")}}.
fetchStreamFunction is an event handler for fetchStreamButton. When the button is clicked, audio
and video are captured from the system's devices. removeTracksFunction is the event handler for removeTracksButton.
When this button is clicked, the audio and video tracks are removed from the {{domxref("MediaStream")}}.
let initialStream = null;
let newStream = null;
let fetchStreamButton = document.getElementById("fetchStream");
let removeTracksButton = document.getElementById("removeTracks");
async function fetchStreamFunction() {
initialStream = await navigator.mediaDevices.getUserMedia({
video: { width: 620, height: 310 },
audio: true,
});
if (initialStream) {
await attachToDOM(initialStream);
}
}
async function attachToDOM(stream) {
newStream = new MediaStream(stream.getTracks());
document.querySelector("video").srcObject = newStream;
}
async function removeTracksFunction() {
let videoTrack = newStream.getVideoTracks()[0];
let audioTrack = newStream.getAudioTracks()[0];
newStream.removeTrack(videoTrack);
newStream.removeTrack(audioTrack);
// Stream will be empty
console.log(newStream.getTracks());
}
fetchStreamButton.addEventListener("click", fetchStreamFunction);
removeTracksButton.addEventListener("click", removeTracksFunction);
{{Specifications}}
{{Compat}}