The issue pertains to the length of the code used for scrolling up the page upon button click.

<div class="back-to-top">
      <a href="#top">Back to Top</a>
    </div>
    
  <hr>
</div>

<script>
  document.getElementById('back-to-top').addEventListener('click', () => {
     window.scrollTo({ top: 0, behavior: 'smooth' });
  });
</script>

I found the current code for scrolling up the page upon button click to be somewhat lengthy. Any suggestions for a more concise implementation?