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.
Use the event name in methods like addEventListener(), or set an event handler property.
addEventListener("loadeddata", (event) => { })
onloadeddata = (event) => { }
A generic Event.
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.",
);
};
| Specification |
|---|
| HTML> # event-media-loadeddata> |
| HTML> # handler-onloadeddata> |
| 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 |
playing eventwaiting eventseeking eventseeked eventended eventloadedmetadata eventcanplay eventcanplaythrough eventdurationchange eventtimeupdate eventplay eventpause eventratechange eventvolumechange eventsuspend eventemptied eventstalled event
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https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/loadeddata_event