>)</span></span>
<span></span>
<span><span class="fu">is.deque</span><span class="op">(</span><span class="va">x</span><span class="op">)</span></span></code></pre></div>
    </div>

    <div class="section level2">
    <h2 id="arguments">Arguments<a class="anchor" aria-label="anchor" href="#arguments"></a></h2>


<dl><dt id="arg--">...<a class="anchor" aria-label="anchor" href="#arg--"></a></dt>
<dd><p>initial elements put into the <code>Deque</code>.</p></dd>


<dt id="arg-x">x<a class="anchor" aria-label