# XSLT key() Function

Complete XSLT Function Reference

## Definition and Usage

The key() function returns a node-set from the document, using the index specified by an <xsl:key> element.

## Syntax

node-set key(string, object)

## Parameters

Parameter | Description
--- | ---
string | Required. Specifies the name of an xsl:key element
object | Required. A string to search for

### Example 1

<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:key name="cdlist" match="cd" use="title" />
<xsl:template match="/">
<html>
<body>
<xsl:for-each select="key('cdlist', 'Empire Burlesque')">
<p>
Title: <xsl:value-of select="title" />
<br />
Artist: <xsl:value-of select="artist" />
<br />
Price: <xsl:value-of select="price" />
</p>
</xsl:for-each>
</body>
</html>
</xsl:template>
</xsl:stylesheet>

View the XML file, View the XSL file, and View the result.

Complete XSLT Function Reference

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