namespace-uri Function

Returns the namespace URI of the expanded name of the node in the argument node-set that is first in document order.

string namespace-uri(node-set?)

Remarks

If the argument node-set is empty, the first node has no expanded name or the namespace URI of the expanded name is Null and an empty string is returned. If the argument is omitted, it defaults to a node-set with the context node as its only member.

Note   The string returned will be empty except for element nodes and attribute nodes.

See Also

XML Data Types Reference