/doc/LpopCommand.html
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1 2<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"> 3<html> 4 <head> 5 <link type="text/css" rel="stylesheet" href="style.css" /> 6 </head> 7 <body> 8 <div id="page"> 9 10 <div id='header'> 11 <a href="index.html"> 12 <img style="border:none" alt="Redis Documentation" src="redis.png"> 13 </a> 14 </div> 15 16 <div id="pagecontent"> 17 <div class="index"> 18<!-- This is a (PRE) block. Make sure it's left aligned or your toc title will be off. --> 19<b>LpopCommand: Contents</b><br> <a href="#LPOP _key_">LPOP _key_</a><br> <a href="#RPOP _key_">RPOP _key_</a><br> <a href="#Return value">Return value</a><br> <a href="#See also">See also</a> 20 </div> 21 22 <h1 class="wikiname">LpopCommand</h1> 23 24 <div class="summary"> 25 26 </div> 27 28 <div class="narrow"> 29 <h1><a name="LPOP _key_">LPOP _key_</a></h1> 30<h1><a name="RPOP _key_">RPOP _key_</a></h1> 31<i>Time complexity: O(1)</i><blockquote>Atomically return and remove the first (LPOP) or last (RPOP) elementof the list. For example if the list contains the elements "a","b","c" LPOPwill return "a" and the list will become "b","c".</blockquote> 32<blockquote>If the <i>key</i> does not exist or the list is already empty the specialvalue 'nil' is returned.</blockquote> 33<h2><a name="Return value">Return value</a></h2><a href="ReplyTypes.html">Bulk reply</a><h2><a name="See also">See also</a></h2> 34<ul><li> <a href="LlenCommand.html">LLEN</a></li><li> <a href="LrangeCommand.html">LRANGE</a></li><li> <a href="LtrimCommand.html">LTRIM</a></li><li> <a href="LdelCommand.html">LDEL</a></li><li> <a href="LindexCommand.html">LINDEX</a></li><li> <a href="LsetCommand.html">LSET</a></li></ul> 35 </div> 36 37 </div> 38 </div> 39 </body> 40</html> 41