title: How do I remove siblings from the DOM?
body: <p>I have this working code:</p>
  
  <pre><code>  a.parentNode.removeChild(a);
  </code></pre>
  
  <p>I need to also remove this child's previous sibling, i.e. the element that comes before it.  </p>
  
  <p>How do I update this? Does MDN have documentation on it?</p>