JavaScript Builder Design Pattern
Today I would like to continue the series about design patterns we started with Factory Patterns in JavaScript and talk about the Builder pattern . For some reason it's being left behind in any design pattern usage in JavaScript. Maybe it was correct in the front end domain, but surely not in Node.js. Builder pattern separates the construction of a complex object from its representation so that the same construction process can create different representations. The Builder pattern is based on Directors and Builders . Any number of Builder classes can conform to an IBuilder interface, and they can be called by a director to produce a product according to specification. The builders supply parts that the Product objects accumulate until the director is finished with the job. I'll be using the example from the factory pattern article to emphasize the differences between the patterns. Consider the class diagram for the Builder pattern: And the implementation: funct