for-each-pair

Applies the function item $f to successive pairs of items taken one from $seq1 and one from $seq2, returning the concatenation of the resulting sequences in order.

for-each-pair($seq1 as item()*, $seq2 as item()*, $f as function(item(), item()) as item()*) ➔ item()*

Arguments
	$seq1	item()*	The first sequence
	$seq2	item()*	The second sequence
	$f	function(item(), item()) as item()*	The function which will be applied to each pair of items from the two sequences
Result		item()*

Links to W3C specifications

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

Applies to: XPath 3.0, XSLT 3.0, XQuery 3.0 (if enabled in Saxon: requires Saxon-PE or Saxon-EE)

XPath 3.0 Functions and Operators

Notes on the Saxon implementation

Available since Saxon 9.3 under the name fn:map-pairs. Requires XPath 3.0 to be enabled. In Saxon 9.5.1, in response to W3C spec changes, the function was renamed fn:for-each-pair and the argument order was changed.