Design Pattern Categorization

Learning JavaScript Design Patterns

 

 

Let us now proceed to review the table.

Creational				Based on the concept of creating an object.
Class
Factory Method					This makes an instance of several derived classes based on interfaced data or events.
Object
Abstract Factory					Creates an instance of several families of classes without detailing concrete classes.
Builder					Separates object construction from its representation, always creates the same type of object.
Prototype					A fully initialized instance used for copying or cloning.
Singleton					A class with only a single instance with global access points.
Structural				Based on the idea of building blocks of objects
Class
Adapter					Match interfaces of different classes therefore classes can work together despite incompatible interfaces
Object
Adapter					Match interfaces of different classes therefore classes can work together despite incompatible interfaces
Bridge					Separates an object's interface from its implementation so the two can vary independently
Composite					A structure of simple and composite objects which makes the total object more than just the sum of its parts.
Decorator					Dynamically add alternate processing to objects.
Facade					A single class that hides the complexity of an entire subsystem.
Flyweight					A fine-grained instance used for efficient sharing of information that is contained elsewhere.
Proxy					A place holder object representing the true object
Behavioral				Based on the way objects play and work together.
Class
Interpreter					A way to include language elements in an application to match the grammar of the intended language.
Template         Method					Creates the shell of an algorithm in a method, then defer the exact steps to a subclass.
Object
Chain of        Responsibility					A way of passing a request between a chain of objects to find the object that can handle the request.
Command					Encapsulate a command request as an object to enable, logging and/or queuing of requests, and provides error-handling for unhandled requests.
Iterator					Sequentially access the elements of a collection without knowing the inner workings of the collection.
Mediator					Defines simplified communication between classes to prevent a group of classes from referring explicitly to each other.
Memento					Capture an object's internal state to be able to restore it later.
Observer					A way of notifying change to a number of classes to ensure consistency between the classes.
State					Alter an object's behavior when its state changes
Strategy					Encapsulates an algorithm inside a class separating the selection from the implementation
Visitor					Adds a new operation to a class without changing the class