HTMLMediaElement: loadedmetadata event

ジャンプ先:
  1. Additional Properties
  2. Examples
  3. Specifications
  4. Browser compatibility
  5. Related Events
  6. See Also

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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
Specification HTML5 media

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 Status
HTML Living Standard
The definition of 'loadedmetadata media event' in that specification.		 Living Standard
HTML5
The definition of 'canplay media event' in that specification.		 Recommendation

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
loadedmetadata eventChrome Full support 3Edge Full support YesFirefox Full support 3.5IE Full support 9Opera Full support 10.5Safari Full support 3.1WebView Android Full support YesChrome Android Full support 18Edge Mobile Full support YesFirefox Android Full support 4Opera Android Full support YesSafari iOS Full support YesSamsung Internet Android Full support Yes

Legend

Full support  
Full support

See Also

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