FunctX XSLT Function Library > Sequences > Combining >

functx:value-union

The union of two sequences of values

Description

The functx:value-union function returns the union of the values in two sequences in an implementation-defined order. It removes duplicates, even among the values that appear only in one of the sequences. This function is useful because the built-in union (or "|") operator only works on nodes, not atomic values.

Arguments and Return Type

XSLT Function Declaration

<xsl:function name="functx:value-union" as="xs:anyAtomicType*" 
              xmlns:functx="http://www.functx.com" >
  <xsl:param name="arg1" as="xs:anyAtomicType*"/> 
  <xsl:param name="arg2" as="xs:anyAtomicType*"/> 
 
  <xsl:sequence select=" 
  distinct-values(($arg1, $arg2))
 "/>
   
</xsl:function>

Examples

functx:value-union((1,2),(3,4))

(1, 2, 3, 4)

functx:value-union((1,2,3),(2,3,4))

(1, 2, 3, 4)

functx:value-union((1,2,2,3),(3,4))

(1, 2, 3, 4)

functx:value-union((1,2,2,3),())

(1, 2, 3)

See Also

History