change video speed

speed.js

class VideoSpeed {

  constructor(){
    this.video = document.getElementsByTagName("video").video
  }

  speed = () => {
    return this.video.playbackRate
  }

  set_speed = speed => {
    
    this.video.playbackRate = speed
  }
  
  reset_speed = () => {
    this.video.playbackRate = 1
  }
  
}

let v = new VideoSpeed("video")

v.set_speed(2)