Hi Balaji, > Please go through the following blog post. Any kind of suggestion or > feedback is welcome.
That's a nice description, easy to follow. But there is a missing piece: how do you actually find the dataType for a series of values? My first guess was that you are using the same method as Collection >> commonSuperclass, but then a nil value should yield UndefinedObject, not Object as in your example. Cheers Konrad.
