The timeupdate
event is fired when the time indicated by the currentTime
attribute has been updated.
The event frequency is dependant on the system load, but will be thrown between about 4Hz and 66Hz (assuming the event handlers don't take longer than 250ms to run). User agents are encouraged to vary the frequency of the event based on the system load and the average cost of processing the event each time, so that the UI updates are not any more frequent than the user agent can comfortably handle while decoding the video.
Bubbles | No |
---|---|
Cancelable | No |
Interface | Event |
Target | Element |
Default Action | None |
Event handler property | GlobalEventHandlers.ontimeupdate |
Specification | HTML5 media |
Examples
These examples add an event listener for the HTMLMediaElement's timeupdate
event, then post a message when that event handler has reacted to the event firing. Remember, the event frequency is dependant on the system load.
Using addEventListener()
:
const video = document.querySelector('video');
video.addEventListener('timeupdate', (event) => {
console.log('The currentTime attribute has been updated. Again.');
});
Using the ontimeupdate
event handler property:
const video = document.querySelector('video');
video.ontimeupdate = (event) => {
console.log('The currentTime attribute has been updated. Again.');
};
Specifications
Specification | Status |
---|---|
HTML Living Standard The definition of 'timeupdate media event' in that specification. |
Living Standard |
HTML5 The definition of 'timeupdate media event' in that specification. |
Recommendation |
Browser compatibility
BCD tables only load in the browser
Related Events
HTMLMediaElement: playing event
HTMLMediaElement: waiting event
HTMLMediaElement: seeking event
HTMLMediaElement: seeked event
HTMLMediaElement: ended event
HTMLMediaElement: loadedmetadata event
HTMLMediaElement: loadeddata event
HTMLMediaElement: canplay event
HTMLMediaElement: canplaythrough event
HTMLMediaElement: durationchange event
HTMLMediaElement: timeupdate event
HTMLMediaElement: play event
HTMLMediaElement: pause event
HTMLMediaElement: ratechange event
HTMLMediaElement: volumechange event
HTMLMediaElement: suspend event
HTMLMediaElement: emptied event
HTMLMediaElement: stalled event