<?xml version="1.0" encoding="iso-8859-1"?> <?xml-stylesheet href="../../make-menu.xsl" type="text/xsl"?><html> <head> <this-is section="extensions" page="functions" subpage="item-at"/> <!-- Generated at 2011-12-09T20:47:22.916Z--><title>Saxonica: XSLT and XQuery Processing: saxon:item-at()</title> <meta name="coverage" content="Worldwide"/> <meta name="copyright" content="Copyright Saxonica Ltd"/> <meta name="title" content="Saxonica: XSLT and XQuery Processing: saxon:item-at()"/> <meta name="robots" content="noindex,nofollow"/> <link rel="stylesheet" href="../../saxondocs.css" type="text/css"/> </head> <body class="main"> <h1>saxon:item-at()</h1> <p><b>saxon:item-at($seq as item()*, $index as numeric?) ==> item()?</b></p> <p>This function returns the item at a given position in a sequence. The index counts from one. If the index is an empty sequence, or less than one, or not a whole number, or greater than the length of the sequence, the result is an empty sequence.</p> <p><i>This function is provided largely because it is used internally by the Saxon optimizer. For user applications, it is better to use <code>$seq[$index]</code> which will return the same result provided there are no context-dependencies in <code>$index</code>, or <code>subsequence($seq, $index, 1)</code> which will return the same result in all cases where <code>$index</code> evaluates to an integer.</i></p> <p>Example:</p> <div class="codeblock" style="border: solid thin; background-color: #B1CCC7; padding: 2px"> <pre> <code>saxon:item-at(10 to 20, 8)</code> </pre> </div> <p>will return 17.</p> <table width="100%"> <tr> <td> <p align="right"><a class="nav" href="last-modified.xml">Next</a></p> </td> </tr> </table> </body> </html>