xdmp.functionSignature( function as function(*) ) as String?
Returns the signature of the function that the argument refers to.
Parameters | |
---|---|
function | The function value. |
var fn = xdmp.function(fn.QName("http://www.w3.org/2005/xpath-functions", "empty")); xdmp.functionSignature(fn); => "function(item()*) as xs:boolean"