TextTrackList: change event

addEventListener("change", (event) => { })
onchange = (event) => { }

const mediaElement = document.querySelectorAll("video, audio")[0];
mediaElement.textTracks.addEventListener("change", (event) => {
  console.log(`'${event.type}' event fired`);
});

const mediaElement = document.querySelector("video, audio");
mediaElement.textTracks.onchange = (event) => {
  console.log(`'${event.type}' event fired`);
};