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antirez
2009-12-05 16:58:10 +01:00
parent 5703330151
commit 43f30ac0f9
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doc/ZcardCommand.html
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<div id="pagecontent">
<div class="index">
<!-- This is a (PRE) block. Make sure it's left aligned or your toc title will be off. -->
<b>ZcardCommand: Contents</b><br>&nbsp;&nbsp;<a href="#ZCARD _key_ (Redis &gt;">ZCARD _key_ (Redis &gt;</a><br>&nbsp;&nbsp;&nbsp;&nbsp;<a href="#Return value">Return value</a><br>&nbsp;&nbsp;&nbsp;&nbsp;<a href="#See also">See also</a>
<b>ZcardCommand: Contents</b><br>&nbsp;&nbsp;<a href="#ZCARD _key_ (Redis &gt;">ZCARD _key_ (Redis &gt;</a><br>&nbsp;&nbsp;&nbsp;&nbsp;<a href="#Return value">Return value</a>
</div>
<h1 class="wikiname">ZcardCommand</h1>
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<div class="narrow">
<h1><a name="ZCARD _key_ (Redis &gt;">ZCARD _key_ (Redis &gt;</a></h1> 1.1) =
&iuml;&raquo;&iquest;#sidebar <a href="SortedSetCommandsSidebar.html">SortedSetCommandsSidebar</a><h1><a name="ZCARD _key_ (Redis &gt;">ZCARD _key_ (Redis &gt;</a></h1> 1.1) =
<i>Time complexity O(1)</i><blockquote>Return the sorted set cardinality (number of elements). If the <i>key</i> does notexist 0 is returned, like for empty sorted sets.</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 cardinality (number of elements) of the set as an integer.
</pre><h2><a name="See also">See also</a></h2>
<ul><li> <a href="ZaddCommand.html">ZADD</a></li><li> <a href="ZremCommand.html">ZREM</a></li><li> <a href="ZrangeCommand.html">ZRANGE</a></li><li> <a href="ZrangeCommand.html">ZREVRANGE</a></li><li> <a href="ZrangebyscoreCommand.html">ZRANGEBYSCORE</a></li><li> <a href="ZscoreCommand.html">ZSCORE</a></li></ul>
</pre>
</div>