Chain of Responsibility Pattern
Features a request sender and one or more request handlers that form a chain
the request sender passes the request to the first handler in the chain
the...
Iterator Pattern
Javascript itself has iteration built into the language
there are a number of for and forEach methods to iterate through arrays
we have the forIn loop to iterate through objects
Iterator pattern is different as it doesn't...
Decorator Pattern
Structural pattern used to add new functionality to existing objects
using JavaScript we can extend classes whenever we want, but the decorator pattern is still used to minimize the amount of sub-classes we will...
Facade Pattern
The facade is a simple interface that is shown to the public to hide the complexity of the underlying system
they conceal the implementation
It is a structural pattern that simplifies the use of...
Publisher / Subscriber Pattern
This Lesson teaches the Publisher / Subscriber pattern, which is used to allow modules to communicate with eachother without hard dependencies. It is a great pattern for decoupling modules in your program
It is very...
Factory Pattern
The factory pattern consists of a collection of objects, a factory, and a client that requires instances of the objects. The client controls the process, but is decoupled from the actual construction of...
Proxy Pattern
The Proxy pattern uses one object as the interface for another object
It sits between users or clients of the object and the object itself
client makes request to proxy, proxy makes request to...
Adapter Pattern
Used to convert one interface to another
an objects interface is the method and properties exposed by the object, what we use to interact with the object
useful pattern when something changes and...
Mediator Pattern
Situation: If you have multiple independent modules that work in a system (parts of a web page or a user interface system) and they must be kept seperate from eachother and aren't allowed...