map:contains
Tests whether a particular key is present in a map. Returns true if the candidate key is present in the map, otherwise false.
contains($map as map(*), $key as xs:anyAtomicType) ➔ xs:boolean
Arguments | |||
| $map | map(*) | The input map |
| $key | xs:anyAtomicType | The candidate key |
Result | xs:boolean |
Namespace
http://www.w3.org/2005/xpath-functions/map
Links to W3C specifications
XPath 3.1 Functions and Operators
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.