title: HTML input default value
body: <p>The following sets an empty initial value in my input box.  Is there a way to force a null value if nothing is entered?</p>
  
  <p>Since it is a <code>datetime-local</code> field, I think the empty string is causing me other problems. </p>
  
  <pre><code>&lt;td&gt;&lt;input id="1stintstart" value="" type="datetime-local"&gt;&lt;/td&gt;
  </code></pre>