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These are concerned with algorithms and the assignment of responsibilities among objects. It's about communication between objects Listed are how behavioral patterns can be achieved: Chain of Responsibility Command Iterator Mediator Memento Observer State Strategy Template Method Visitor

These design patterns are all about Class and Object composition. It explains how to assemble classes and objects into larger structures while keeping them flexible and efficient. It uses inheritance to compose interfaces It defines ways to compose objects to obtain new functionality

These design patterns are about class instantiation. This can be further divided as: Class creation pattern - it uses inheritance effectively in instantiation process Object creation pattern - uses delegation for it's process, which increases flexibility and reuse of existing code

Introduction to JavaScript What is JavaScript ?