lass="source_code">
  <tr>
    <td>
      <pre class="lines">


20</pre>
    </td>
    <td>
      <pre class="code"><span class="info file"># File 'rdoc-sources/FXDirList.rb', line 20</span>

<span class='kw'>def</span> <span class='id identifier rubyid_directory?'>directory?</span><span class='semicolon'>;</span> <span class='kw'>end</span></pre>
    </td>
  </tr>
</table>
</div>
    
      <div class="method_details ">
  <h3 class="signature " id="executable?-instance_method">
  
    #<strong>executable?<