+/- 10% video speed

bookmarklets.js

// -10%
javascript:(() => {
  let speed = [...document.querySelectorAll('audio,video')].filter(v => v.currentTime > 0)[0].playbackRate -= .10;
  console.log('video speed', speed);
})()

// +10%
javascript:(() => {
  let speed = [...document.querySelectorAll('audio,video')].filter(v => v.currentTime > 0)[0].playbackRate += .10;
  console.log('video speed', speed);
})()