Is there any way to check to see if a VBScript function is defined?

Question

This is probably just wishful thinking...

Is there any way to check to see if an ASP/VBScript function is defined before calling it?

Answer 1

Here is my solution which works on the same principle, but the hacky-ness is pretty self-contained:

Function FunctionExists( func_name )
    FunctionExists = False 

    On Error Resume Next

    Dim f : Set f = GetRef(func_name)

    If Err.number = 0 Then
        FunctionExists = True
    End If  
    On Error GoTo 0

End Function