XSLT function-available() Function

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# XSLT function-available() Function

Complete XSLT Function Reference

## Definition and Usage

The function-available() function returns a Boolean value that indicates whether the function specified is supported by the XSLT processor.

You may test the XSLT functions and the inherited XPath functions.

## Syntax

boolean function-available(string)

## Parameters

Parameter | Description
--- | ---
string | Required. Specifies the function to test

### Example 1

<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:stylesheet version="1.0"
xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<html>
<body>
<xsl:choose>
<xsl:when test="function-available('sum')">
<p>sum() is supported.</p>
</xsl:when>
<xsl:otherwise>
<p>sum() is not supported.</p>
</xsl:otherwise>
</xsl:choose>
<xsl:choose>
<xsl:when test="function-available('current')">
<p>current() is supported.</p>
</xsl:when>
<xsl:otherwise>
<p>current() is not supported.</p>
</xsl:otherwise>
</xsl:choose>
</body>
</html>
</xsl:template>
</xsl:stylesheet>

View the XSL file and View the result

Complete XSLT Function Reference

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