Remove all videos from watch later on youtube

remove-all-videos-from-watch-later-on-youtube.js

(async () => {
  for (let btn of document.querySelectorAll('#contents .dropdown-trigger.style-scope.ytd-menu-renderer')) {
    btn.click();
    await (async () => {return new Promise(resolve => setTimeout(resolve, 100))})();
    document.querySelectorAll('ytd-popup-container ytd-menu-service-item-renderer')[2].click();
    await (async () => {return new Promise(resolve => setTimeout(resolve, 500))})();
  }
})();