> Iterating over something requires knowing where you are in the sequence, so of course you would need to implement a method to get the current position of the iteration.
No you don't. Other languages don't require it. There is no issue to get a position outside of iterator and it's more generic approach.
Let me guess. To somehow patch iteration on associative arrays? And instead of bringing pairs or tuples as first class citizens it extends iterators with `key` and `value`. And now any Iterator implementation should track own sequentially increasing key. Very nice design indeed.
No you don't. Other languages don't require it. There is no issue to get a position outside of iterator and it's more generic approach.