fn.nodeName

fn.nodeName(
   arg as Node?
) as xs.QName?

Summary

Returns an expanded-QName for node kinds that can have names. For other kinds of nodes it returns the empty sequence. If $arg is the empty sequence, the empty sequence is returned.

Parameters
arg	The node whose name is to be returned.

Example

var x = fn.head(xdmp.unquote('<hello><goodbye>1</goodbye></hello>'));
fn.nodeName(x.xpath("/child::element()"));

=> hello (because the xdmp.unquote produces a Sequence 
          containing a document node, and the xpath starts at the
	  document node and selects the sequence of child elements,
	  which in this case is the root node named "hello")