<!DOCTYPE html>
<html>
<body>
<p>In this example, we use the HTML DOM to assign an "ontimeupdate" event to a video element. When the user starts to play the video, or skips to a new position in the video, a function is triggered, which will display the current position (in seconds) of the video playback.</p>
<video id="myVideo" width="320" height="176" controls>
<source src="mov_bbb.mp4" type="video/mp4">
<source src="mov_bbb.ogg" type="video/ogg">
Your browser does not support HTML5 video.
</video>
<p>Playback position: <span id="demo"></span></p>
<script>
let vid = document.getElementById("myVideo");
vid.ontimeupdate = function() {myFunction()};
function myFunction() {
document.getElementById("demo").innerHTML = vid.currentTime;
}
</script>
<p>Video courtesy of <a href="https://www.bigbuckbunny.org/" target="_blank">Big Buck Bunny</a>.</p>
</body>
</html>