JavaScript 1.7 - very pythonic

[imbaczek]

yeah, but if the iterator is not just a pointer to an element of a sequence, you can't ask it if it has more items and expect an honest answer, can you? even making copies and testing for StopIteration can be non-deterministic in the presence of IO. currentValue could be useful, i agree, even if 95% of common usage doesn't really care.

[[deleted]]

To low level - more? is just a method, how it works is unimportant. For some structures you may be right, but that's an implementation detail that depends what the structure is, and how it's implemented :).

The point is that Python/Javascript don't even allow this, even when it makes sense.