copy YouTube song title

main.js

(() => {
  const videoDescriptionSelector = '#description-inline-expander > yt-attributed-string';
  const $videoDescription = document.querySelector(videoDescriptionSelector);
  const [songTitle, artist] = $videoDescription?.textContent
    .split('\n\n')[1]
    .split(' · ');
  const fullArtist = document.querySelector('#owner #upload-info a').textContent;
  const result = `${fullArtist} - ${songTitle}`;
  copy(result);
  
  function copy(text) {
    const textArea = document.createElement('textarea');
    textArea.value = text;
    document.body.appendChild(textArea);
    textArea.select();
    document.execCommand('Copy');
    textArea.remove();
  }
})();