An example of the unary plus : Math « XSLT stylesheet « XML Tutorial

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2. XSLT stylesheet
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File: Data.xml


File: Transform.xslt
<?xml version="1.0"?>
<xsl:stylesheet version="2.0" 
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:xs="http://www.w3.org/2001/XMLSchema">

  <xsl:output method="text"/>

  <xsl:template match="/">
    <xsl:variable name="x" as="xs:integer" select="xs:integer(-10)"/>

    <xsl:text>An example of the unary plus </xsl:text>
    <xsl:text>operator:&#xA;    </xsl:text>
    <xsl:value-of select="('$x =', $x, '&#xA;   +$x =', +$x)"/>
  </xsl:template>

</xsl:stylesheet>
Output:

An example of the unary plus operator:
    $x = -10 
   +$x = -10