files/en-us/web/api/htmlmediaelement/loadedmetadata_event/index.md
{{APIRef("HTMLMediaElement")}}
The loadedmetadata event is fired when the metadata has been loaded.
Use the event name in methods like {{domxref("EventTarget.addEventListener", "addEventListener()")}}, or set an event handler property.
addEventListener("loadedmetadata", (event) => { })
onloadedmetadata = (event) => { }
A generic {{domxref("Event")}}.
These examples add an event listener for the HTMLMediaElement's loadedmetadata event, then post a message when that event handler has reacted to the event firing.
Using addEventListener():
const video = document.querySelector("video");
video.addEventListener("loadedmetadata", (event) => {
console.log(
"The duration and dimensions of the media and tracks are now known.",
);
});
Using the onloadedmetadata event handler property:
const video = document.querySelector("video");
video.onloadedmetadata = (event) => {
console.log(
"The duration and dimensions of the media and tracks are now known.",
);
};
{{Specifications}}
{{Compat}}