How often does the timeupdate event fire for an html5 video

Question

Learning html5 stuff. It\'s pretty awesome! Wondering how often the timeupdate event fires.

SIDE NOTE: There are so many interesting possibilities with the js video

Answer 1

If you only need to run a function every so often it'd be a better idea to run it using the play and pause events.

Below is an example of running a process every 3 seconds while the video is playing.

video.addEventListener('play', () => {
  video._updateInterval = setInterval(() => {
    // do what you need
  }, 3000);
}, true);

video.addEventListener('pause', () => clearInterval(video._updateInterval), true);