title: What does ?* mean
body: <p>I am trying to understand what this means</p>
  
  <pre><code> variableName * ?*
  </code></pre>
  
  <p>I understand that <code>VariableName</code> is being multiplied with something, but what does <code>?*</code> mean? Is this regex and does it mean that I'm appending '<code>?</code>' and anything that comes after it?</p>