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.

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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 addEventListener():

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

Alternatively, assign to the event handler property of the interface:

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 (but note that this replaces other event listeners added using onloadeddata, if any):

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.",
  );
};