Tag: design patterns
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Observer Pattern in JavaScript
In this article we will explore the Observer Pattern in JavaScript. We will look at a real world example that involves processing order shipment and how to implement observer pattern in that context. In object oriented programming the Observer Pattern defines a one-to-many dependency between objects, where one object (the subject or observable) maintains a…
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Strategy Pattern in JavaScript
In this article we will describe the Strategy Pattern. We will define a real world scenario and explain how to solve it using the Strategy Design Pattern approach. According to Wikipedia: in computer programming, the strategy pattern (also known as the policy pattern) is a behavioral software design pattern that enables selecting an algorithm at runtime. Instead of implementing a single algorithm directly, code…