oggle-link" data-toggle="collapse" href="#comment-func-subsequence-self-poplast">mutating func popLast()</a>
        
<div class="comment collapse" id="comment-func-subsequence-self-poplast"><div class="p">
    <p>If <code>!self.isEmpty</code>, remove the last element and return it, otherwise
return <code>nil</code>.</p>

<p><strong>Complexity:</strong> O(<code>self.count</code>)</p>

    <h4>Declaration</h4>    
    <code class="language-swift">mutating func popLast() -&gt; Self.Generator.Element?</code>
 