fn:head

Returns the first item in a sequence.

head($arg as item()*) ➔ item()?

Arguments

 

$arg

item()*

The sequence whose first item is required

Result

item()?

Namespace

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

Links to W3C specifications

XPath 3.1 Functions and Operators

Saxon availability

Available in XPath 3.0, XSLT 3.0, XQuery 3.0, and later versions. From Saxon 9.6, available in all editions.

Notes on the Saxon implementation

Available since Saxon 9.3, provided XPath 3.0 is enabled.