Bill Baxter wrote:
To Andrei, do you really feel comfortable trying to explain this in your book? It seems like it will be difficult to explain that ~= is sometimes efficient for appending but not necessarily if you're working with a lot of arrays because it actually keeps this cache under the hood that may or may not remember the actual underlying capacity of the array you're appending to, so you should probably use ArrayBuilder if you can, despite the optimization.
I guess I'll try and let you all know. Andrei
