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"-//W3C//DTD HTML 4.01//EN"> 
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"style.css" /> 
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  18 <!-- This is a (PRE) block.  Make sure it's left aligned or your toc title will be off. --> 
  19 <b>RpushCommand: Contents
</b><br>      <a href=
"#RPUSH _key_ _string_">RPUSH _key_ _string_
</a><br>      <a href=
"#LPUSH _key_ _string_">LPUSH _key_ _string_
</a><br>    <a href=
"#Return value">Return value
</a> 
  22                 <h1 class=
"wikiname">RpushCommand
</h1> 
  29                     #sidebar 
<a href=
"ListCommandsSidebar.html">ListCommandsSidebar
</a><h3><a name=
"RPUSH _key_ _string_">RPUSH _key_ _string_
</a></h3> 
  30 <h3><a name=
"LPUSH _key_ _string_">LPUSH _key_ _string_
</a></h3> 
  31 <i>Time complexity: O(
1)
</i><blockquote>Add the 
<i>string
</i> value to the head (LPUSH) or tail (RPUSH) of the liststored at 
<i>key
</i>. If the key does not exist an empty list is created just beforethe append operation. If the key exists but is not a List an erroris returned.
</blockquote> 
  32 <h2><a name=
"Return value">Return value
</a></h2><a href=
"ReplyTypes.html">Integer reply
</a>, specifically, the number of elements inside the list after the push operation.