How to remove all videos from Youtube Watch later list

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

/* Quoted from: 
*  https://www.alphr.com/delete-all-watch-later-videos-youtube/ 
*  The above used xpath with a span, which doesn't work for Youtube as of June 2023
*/

setInterval(function () { 
  document.querySelector('#primary button[aria-label="Action menu"]').click(); 
  var things = document.evaluate( '//yt-formatted-string[contains(text(),"Remove from")]', 
                                 document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null ); 
  for (var i = 0; i < things.snapshotLength; i++) { things.snapshotItem(i).click(); } 
}, 1000);