MutableIndexable/"><code>MutableIndexable</code></a>
        </div></div>
</div>
<div class="declaration inherited" id="var-startindex_-self-index">
<a class="toggle-link" data-toggle="collapse" href="#comment-var-startindex_-self-index">var startIndex: Self.Index</a> <span class="required">Required</span><div class="comment collapse" id="comment-var-startindex_-self-index"><div class="p">
    <p>The position of the first element in a non-empty collection.</p>

<p>In an empty collection, <code>startIndex ==