de> is not in the range
   0 to <a href="Weak.html#VALlength"><code class="code"><span class="constructor">Weak</span>.length</code></a><code class="code"> a - 1</code>.<br>
</div>

<pre><span id="VALget"><span class="keyword">val</span> get</span> : <code class="type">'a <a href="Weak.html#TYPEt">t</a> -&gt; int -&gt; 'a option</code></pre><div class="info ">
<code class="code"><span class="constructor">Weak</span>.get ar n</code> returns None if the <code class="code">n</code>th cell of <code class="code"