"idp18641712-bb"></a><span class="identifier">empty</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term">Returns:</span></p></td>
<td>
<code class="computeroutput">true</code> if instance is
              empty, otherwise <code class="computeroutput">false</code>.</td>
</tr>
<tr>
<td><p><span class="term">Thro