fn:duplicate-values

Returns the values that appear in a sequence more than once.

duplicate-values($values as xs:anyAtomicType*, $collation as xs:string?:=fn:default-collation()) ➔ xs:anyAtomicType*

Arguments
	$values	xs:anyAtomicType*		The input sequence
	$collation	xs:string?	:= fn:default-collation()	The collation used for comparing strings
Result		xs:anyAtomicType*

Namespace

http://www.w3.org/2005/xpath-functions

Links to W3C specifications

XPath 4.0 Functions and Operators

Saxon availability

Available in XPath 4.0, XSLT 4.0, and XQuery 4.0, provided that 4.0 features are enabled (see Enabling 4.0 features). Requires Saxon-PE or Saxon-EE. Implemented since Saxon 13. Available for all platforms.