Design Patterns in Swift #1: Factory Method and Singleton

There are 23 classic software development design patterns probably first identified, collected, and explained all in one place by the "Gang of Four" ("GoF"), Erich Gamma, Richard Helm, Ralph Johnson, and John Vlissides in their seminal book, "Design Patterns: Elements of Reusable Object-Oriented Software." This tutorial focuses on two of those patterns in terms of what the GoF calls the "creational" category: factory method and singleton. Software development is an endeavor into modeling real world scenarios in the hopes of creating tools to enhance the human experience in such scenarios. Tools for managing finances, e.g., banking apps and shopping aids […] This article, Design Patterns in Swift #1: Factory Method and Singleton, was originally published at AppCoda.

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iOS,Tutorial,design pattern,factory method,singleton,swift