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19 <b>SpopCommand: Contents
</b><br> <a href=
"#SPOP _key_">SPOP _key_
</a><br> <a href=
"#Return value">Return value
</a>
22 <h1 class=
"wikiname">SpopCommand
</h1>
29 #sidebar
<a href=
"SetCommandsSidebar.html">SetCommandsSidebar
</a><h1><a name=
"SPOP _key_">SPOP _key_
</a></h1>
30 <i>Time complexity O(
1)
</i><blockquote>Remove a random element from a Set returning it as return value.If the Set is empty or the key does not exist, a nil object is returned.
</blockquote>
31 <blockquote>The
<a href=
"SrandmemberCommand.html">SRANDMEMBER
</a> command does a similar work butthe returned element is not removed from the Set.
</blockquote>
32 <h2><a name=
"Return value">Return value
</a></h2><a href=
"ReplyTypes.html">Bulk reply
</a>