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HTML Audio/Video DOM canplaythrough Event

❮ HTML Audio/Video DOM Reference


Alert that the video can be played all the way through, without stopping:

var vid = document.getElementById("myVideo");
vid.oncanplaythrough = function() {
    alert("Can play through video without stopping");
Try it Yourself »

More "Try it Yourself" examples below.

Definition and Usage

The canplaythrough event occurs when the browser estimates it can play through the specified audio/video without having to stop for buffering.

During the loading process of an audio/video, the following events occur, in this order:

  1. loadstart
  2. durationchange
  3. loadedmetadata
  4. loadeddata
  5. progress
  6. canplay
  7. canplaythrough

Browser Support

The numbers in the table specify the first browser version that fully supports the event.

canplaythrough Yes 9.0 Yes Yes Yes



<audio|video oncanplaythrough="myScript">Try it

In JavaScript:

audio|video.oncanplaythrough=function(){myScript};Try it

In JavaScript, using the addEventListener() method:

audio|video.addEventListener("canplaythrough", myScript);Try it

Technical Details

Supported HTML tags: <audio> and <video>
Supported JavaScript objects: Audio, Video

More Examples


Alert that the audio can be played all the way through, without stopping:

var aud = document.getElementById("myAudio");
aud.oncanplaythrough = function() {
    alert("Can play through audio without stopping");
Try it Yourself »

❮ HTML Audio/Video DOM Reference