 class="type">string -&gt; int -&gt; char</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">get&nbsp;s&nbsp;i</code> is the character at index <code class="code">i</code> in <code class="code">s</code>. This is the same
    as writing <code class="code">s.[i]</code>.</p>
</div>
<ul class="info-attributes">
<li><b>Raises</b> <code>Invalid_argument</code> if <code class="code">i</code> not an index of <code class="code">s</code>.</li>
</ul>
</div>
<h2 id="concat">Concatenating</h2>