spotify shuffle all playlists, random all songs

spotify-shuffle.js

/**
  go to https://open.spotify.com/collection/playlists
  and ast this in the browser console
**/

var observer = new MutationObserver(function(mutations) {
  mutations.forEach(function(mutationRecord) {
    window.onChangeProgressBar(
      +mutationRecord.target.style.transform.split('.')[0].replace(/\D/gim, '')
    );
  });
});

var target = document.querySelector('.progress-bar__fg');

if (!target) {
  throw new Error('progress-bar__fg does note exist');
}

observer.observe(target, { attributes: true, attributeFilter: ['style'] });

window.onChangeProgressBar = function(progress) {
  if(progress > 1) return;
  const playlists = [...document.querySelectorAll('.cover-art-playback')];
  playlists[Math.floor(Math.random() * playlists.length)].click();
};