Iterator

Definitions

1. An object that enables sequential traversal of a collection without exposing its underlying structure. Implements a standard interface (typically next() and hasNext() or __iter__/__next__) allowing uniform access to elements regardless of the collection type.

   In plain English: An object that lets you step through a collection one item at a time without needing to know how the collection is organized internally.

   Example: "Python's for loop works with any iterator — lists, files, generators, database cursors, you name it."

Related Terms

• Active Record
• Array
• Command
• Decorator
• Delegate
• Dependency Injection
• Concurrent Collection
• Iterator Pattern