xdmp.functionSignature

xdmp.functionsignaturexdmpfunctionsignature

/apidoc/8.0/xdmp:function-signature.xml

Returns the signature of the function that the argument refers to.

The function value.

function

function(*)

String?

var fn = xdmp.function(fn.QName("http://www.w3.org/2005/xpath-functions",
                                "empty"));
xdmp.functionSignature(fn);
=> "function(item()*) as xs:boolean"