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xdmp.functionSignature

xdmp.functionSignature(
   $function as function(*)
) as String?

Summary

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

Parameters
$function The function value.

Example

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

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