An iterator is an object with a next (Python 2) or __next__ (Python 3) method. Whenever you use a for loop, or map, or a list comprehension, etc. in Python, the next method is called …

Jul 28, 2011 · Iterator is class that manages iteration over an Iterable. It maintains a state of where we are in the current iteration, and knows what the next element is and how to get it.

Aug 27, 2010 · The reverse iterator is work for nothing, since the standard library provides a reverse-iterator adapter. And you failed to make the iterator type assignable from the const …

Mar 7, 2017 · Only possible advantage of using an actual Iterator object over the for-each construct is that you can modify your collection using Iterator's methods like .remove(). …

Iterator is an interface in the Java Collections framework that provides methods to traverse or iterate over a collection. Both iterator and for loop acts similar when your motive is to just …

What is the difference between iterators and generators? Some examples for when you would use each case would be helpful.

Iterator objects in python conform to the iterator protocol, which basically means they provide two methods: __iter__() and __next__(). The __iter__ returns the iterator object and is implicitly …

Oct 24, 2008 · So that's the iterator protocol, many objects implement this protocol: Built-in lists, dictionaries, tuples, sets, and files. User-defined classes that implement __iter__(). …

Mar 8, 2014 · Learn how to iterate through a list of objects in C++ using various methods and techniques.

Over and over again and after many moves of the iterator, I need to "reset" the position of the iterator. I want to ask how I can "reset" my iterator to the first element.