title: What is the significance of #pragma marks? Why do we need #pragma marks?
body: <p>What is the purpose of <code>#pragma</code> marks in Xcode? Does their location in <code>.m</code> files matter? Should some <code>#pragma</code> come before all others?</p>
  
  <ul>
  <li>Do they have to be present? </li>
  <li>Can new marks be added? Why would they be? What causes it?</li>
  <li>Is there any harm in having a mark removed? Would one ever want to?</li>
  </ul>