de></a>    
</div></div>
</div>
<div class="declaration inherited" id="func-prefixupto_">
<a class="toggle-link" data-toggle="collapse" href="#comment-func-prefixupto_">func prefixUpTo(<wbr>_:)</a>
        
<div class="comment collapse" id="comment-func-prefixupto_"><div class="p">
    <p>Returns <code>self[startIndex..&lt;end]</code></p>

<p><strong>Complexity:</strong> O(1)</p>

    <h4>Declaration</h4>    
    <code class="language-swift">func prefixUpTo(end: Base.Index) -&gt; Slice&lt;Base&gt;</code>
  