xdmp:castable-as( $namespace-uri as xs:string, $local-name as xs:string, $item as item()? ) as xs:boolean
Returns true if a value is castable. This is similar to the "castable as" XQuery predicate, except that the type is determined at runtime.
Parameters | |
---|---|
namespace-uri | The namespace URI of the type. |
local-name | The local-name of the type. |
item | The item to be cast. |
xdmp:castable-as( "http://www.w3.org/2001/XMLSchema", "integer", "12") => true()