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19 <b>HlenCommand: Contents
</b><br> <a href=
"#HLEN _key_ (Redis >">HLEN _key_ (Redis
></a><br> <a href=
"#Return value">Return value
</a>
22 <h1 class=
"wikiname">HlenCommand
</h1>
29 #sidebar
<a href=
"HashCommandsSidebar.html">HashCommandsSidebar
</a><h1><a name=
"HLEN _key_ (Redis >">HLEN _key_ (Redis
></a></h1> 1.3.10)=
30 <i>Time complexity: O(
1)
</i><blockquote>Return the number of entries (fields) contained in the hash stored at
<i>key
</i>. If the specified
<i>key
</i> does not exist,
0 is returned assuming an empty hash.
</blockquote>
31 <h2><a name=
"Return value">Return value
</a></h2><a href=
"ReplyTypes.html">Integer reply
</a>