map:size

Returns the number of entries (key/value pairs) in the supplied map.

size($input as map(*)) ➔ xs:integer

Arguments

 

$input

map(*)

The input map

Result

xs:integer

Namespace

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

Links to W3C specifications

XPath 3.1 Functions and Operators

XSLT 3.0 Specification

Saxon availability

Available in XPath 3.1, XSLT 3.0, and XQuery 3.1. From Saxon 9.7, available in all editions.

Notes on the Saxon implementation

Available as defined in XSLT 3.0 since Saxon 9.6; in XSLT, XPath, and XQuery, whether or not 3.0 is available.

XPath 3.1 version implemented since Saxon 9.7.