FunctX XQuery Function Library > XML Nodes > Document Order >

functx:first-node

The XML node in a sequence that appears first in document order

Description

The functx:first-node function returns the node in the sequence that appears first in document order. If nodes in the sequence are from multiple documents, which document is first is implementation-dependent.

Arguments and Return Type

XQuery Function Declaration

declare namespace functx = "http://www.functx.com";
declare function functx:first-node
  ( $nodes as node()* )  as node()? {

   ($nodes/.)[1]
 } ;

Examples

<authors>
   <author>
      <fName>Kate</fName>
      <lName>Jones</lName>
   </author>
   <author>
      <fName>John</fName>
      <lName>Doe</lName>
   </author>
</authors>

functx:first-node($in-xml//fName)

<fName>Kate</fName>

functx:first-node(
     ($in-xml//lName,
      $in-xml//fName) )

<fName>Kate</fName>

See Also

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