Returns the names of the namespaces that are in scope for an element. Except for the
unnamed namespace, which is represented by the string
"", the names will be
in-scope-prefixes($element as element()) ➔ xs:string*
The element node whose in-scope namespace prefixes are required
Links to W3C specifications
XPath 3.1 Functions and Operators
Available in XPath 2.0, XSLT 2.0, XQuery 1.0, and later versions. Available in all Saxon editions.