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HTMLMediaElement: loadeddata 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.

The loadeddata event is fired when the frame at the current playback position of the media has finished loading; often the first frame.

Note: This event will not fire in mobile/tablet devices if data-saver is on in browser settings.

Syntax

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

addEventListener("loadeddata", (event) => { })

onloadeddata = (event) => { }

Event type

A generic Event.

Examples

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

Using addEventListener():

const video = document.querySelector("video");

video.addEventListener("loadeddata", (event) => {
  console.log(
    "Yay! The readyState just increased to  " +
      "HAVE_CURRENT_DATA or greater for the first time.",
  );
});

Using the onloadeddata event handler property:

const video = document.querySelector("video");

video.onloadeddata = (event) => {
  console.log(
    "Yay! The readyState just increased to  " +
      "HAVE_CURRENT_DATA or greater for the first time.",
  );
};

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Opera Safari Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet WebView Android WebView on iOS
loadeddata_event 3 12 3.5 10.5 3.1 18 4 11 3 1.0 4.4 3

See also

© 2005–2025 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/loadeddata_event