HTMLMediaElement: loadedmetadata event

The loadedmetadata event is fired when the metadata has been loaded.

Bubbles No
Cancelable No
Interface Event
Target Element
Default Action None
Event handler property GlobalEventHandlers.onloadedmetadata

Additional Properties

Property Type Description
mozChannels Read only int The number of channels.
mozSampleRate Read only int The sample rate per second.
mozFrameBufferLength Read only int The number of samples collected in all channels.

Examples

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

Specification
HTML Standard (HTML)
# event-media-loadedmetadata

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
loadedmetadata_event
3
12
3.5
9
10.5
3.1
≤37
18
4
Yes
Yes
1.0

See also

© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/HTMLMediaElement/loadedmetadata_event