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<b>LlenCommand: Contents</b><br> <a href="#LLEN _key_">LLEN _key_</a><br> <a href="#Return value">Return value</a>
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<h1 class="wikiname">LlenCommand</h1>
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#sidebar <a href="ListCommandsSidebar.html">ListCommandsSidebar</a><h1><a name="LLEN _key_">LLEN _key_</a></h1>
<i>Time complexity: O(1)</i><blockquote>Return the length of the list stored at the specified key. If thekey does not exist zero is returned (the same behaviour as forempty lists). If the value stored at <i>key</i> is not a list an error is returned.</blockquote>
<h2><a name="Return value">Return value</a></h2><a href="ReplyTypes.html">Integer reply</a>, specifically:<br/><br/><pre class="codeblock python" name="code">
The length of the list.
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