07700">,</span><span style="color: #DD0000">'Stack&nbsp;data&nbsp;must&nbsp;be&nbsp;an&nbsp;array&nbsp;or&nbsp;an&nbsp;object&nbsp;implementing&nbsp;Traversable.'</span><span style="color: #007700">));<br />}</span>
</span>
</code></div>
</div>
<p>Copies iterable data into the stack.
Note, existing data in the list will be cleared first.</p>


<div class="detailHeader" id="count()-detail">
count()
<span class="detailHeaderTag">
method
</span>
</div>

<table class="summaryTable">
<tr><td colspan="3">
<div cl