HTMLMediaElement: loadedmetadata event

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨July 2015⁩.

Theloadedmetadata event is fired when the metadata has been loaded.

Syntax

Use the event name in methods likeaddEventListener(), or set an event handler property.

addEventListener("loadedmetadata", (event) => { })onloadedmetadata = (event) => { }

Event type

A genericEvent.

Examples

These examples add an event listener for the HTMLMediaElement'sloadedmetadata event, then post a message when that event handler has reacted to the event firing.

UsingaddEventListener():

const video = document.querySelector("video");video.addEventListener("loadedmetadata", (event) => {  console.log(    "The duration and dimensions of the media and tracks are now known.",  );});

Using theonloadedmetadata 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.",  );};