Tracking https://groups.google.com/group/jquery-api-team/browse_thread/thread/d5be3813b22a4183

Author: rdworth

entries/jQuery.map.xml

@@ -37,7 +37,7 @@ $.map( realArray, function(val, i) {
     <p>The function can return:</p>
     <ul>
       <li>the translated value, which will be mapped to the resulting array</li>
-      <li><code>null</code>, to remove the item</li>
+      <li><code>null</code> or <code>undefined</code>, to remove the item</li>
       <li>an array of values, which will be flattened into the full array</li>
     </ul>
    </longdesc>