1. If a message does not return self, then you wouldn't be able to chain messages together or to cascade messages.
for example: |s| s := Sphere new. s rotateLeft; rotateRight; spin 60. would have to be: s rotateLeft. s rotateRight. s spin 60. 2. If you add an object to a collection, most times you are still concerned with the object, not the collection. I know what you mean that a lot of times you build an object and when it is complete you store it in a collection and move onto something else. But there is no reason adding has to be the final step. For example, I pour coffee into my cup, (Cup new) add: coffee, then I stir the coffee, (coffee stir) . > 1) Why do ST methods return "self" if nothing is explicitly returned? > (he would have expected something like "Unit" in Scala, or "Void" - > > > 2) In Collections, why does "add:" return the object being added, and > not "self"? _______________________________________________ Beginners mailing list [email protected] http://lists.squeakfoundation.org/mailman/listinfo/beginners
