Concatenating two variables in xslt (non-numeric and/or numeric)

Question

i have two variables in xslt,i am not able to add those and assign to another variable, Any help would be appreciated.

<xsl:variable name="Book" select="hummpty" />
<xsl:variable name="Book1" select="andro" />
<xsl:variable name="Total">
<xsl:value-of select="$Book + $Book1/>
</xsl:variable>

When i try to print 'Total' i am getting value as NaN. How do i achieve this? After achieving this , i would like to assign this as an attribute value. eg:

<Book totakBook="$Total" />

Something like above. Any help appreciated.

Answer 1

If you actually want to concatenate string values, try this:

<xsl:value-of select="concat($Book, $Book1)" />