The HTMLMediaElement.fastSeek() method quickly seeks the media to the new time with precision tradeoff.
Note: If you need to seek with precision, you should set HTMLMediaElement.currentTime instead.
fastSeek(time)timeA double.
None (undefined).
This example quickly seeks to 20-second position of the video element.
let myVideo = document.getElementById("myVideoElement");
myVideo.fastSeek(20);