map:keys
Returns the set of keys found in an input map, in arbitrary order.
keys($map as map(*)) ➔ xs:anyAtomicType*
Arguments | |||
| $map | map(*) | The map whose keys are required |
Result | xs:anyAtomicType* | ||
Namespace
http://www.w3.org/2005/xpath-functions/map
Links to W3C specifications
XPath 3.1 Functions and Operators
Saxon availability
Available in XPath 3.1, XSLT 3.0, and XQuery 3.1. From Saxon 9.7, available in all editions.
Notes on the Saxon implementation
Available as defined in XSLT 3.0 since Saxon 9.4; in XSLT, XPath, and XQuery, whether or not 3.0 is available.
XPath 3.1 version implemented since Saxon 9.7.