Design Patterns

A collection of implementations of the main Typescript design patterns, as part of a study of Vinicius Vivan's course (rabiscando padroes de projeto) on the subject

Creational

• Factory Method Creates an instance of several derived classes
• Abstract Factory Creates an instance of several families of classes
• Builder Separates object construction from its representation
• Singleton A class of which only a single instance can exist
• Prototype A fully initialized instance to be copied or cloned

Structural

• Adapter Match interfaces of different classes
• Decorator Add responsibilities to objects dynamically
• Facade A single class that represents an entire subsystem
• Bridge Separates an object's interface from its implementation
• Proxy An object representing another object
• Composite A tree structure of simple and composite objects
• Flyweight A fine-grained instance used for efficient sharing

Behavioral

• Strategy Encapsulates an algorithm inside a class
• Template Method Defer the exact steps of an algorithm to a subclass
• Observer A way of notifying change to a number of classes
• State Alter an object's behavior when its state changes
• Chain of Responsibility A way of passing a request between a chain of objects
• Iterator Sequentially access the elements of a collection
• Command Encapsulate a command request as an object
• Visitor Defines a new operation to a class without change
• Memento Capture and restore an object's internal state
• Mediator Defines simplified communication between classes
• Interpreter A way to include language elements in a program