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.