fn:for-each-pair

Applies the function item $action to successive pairs of items taken one from $input1 and one from $input2, returning the concatenation of the resulting sequences in order.

for-each-pair($input1 as item()*, $input2 as item()*, $action as fn(item(), item(), xs:integer) as item()*) ➔ item()*

Arguments
	$input1	item()*	The first sequence
	$input2	item()*	The second sequence
	$action	fn(item(), item(), xs:integer) as item()*	The function which will be applied to each pair of items from the two sequences
Result		item()*

Namespace

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

Links to W3C specifications

XPath 3.1 Functions and Operators

XPath 4.0 Functions and Operators

Saxon availability

Available in XPath 3.0, XSLT 3.0, XQuery 3.0, and later versions. From Saxon 10, available in all editions. Implemented in Saxon-PE and Saxon-EE since Saxon 9.6. Available for all platforms.

Notes on the Saxon implementation

Available in Saxon-HE since 10; in Saxon-PE/EE since 9.6.