DESIGN · 71 ARTICLES
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Abstract Factory groups mutually compatible objects into product families and replaces them at once. Using a Swift theme example, this article explains how to prevent composition errors and choose between it and Factory Method.
Read articleSwift factory functions give creation logic intent-revealing names and make return types and reuse policies flexible. This covers when to choose static func over init and how it differs from the GoF Factory Method.
Read articleWhen building iOS apps with Swift, you inevitably face this question.
Read articleWe often create required objects right where they are needed in the code. But the moment you try to write tests, you hit a wall. The creation code is embedded inside the class, so you cannot swap it out.
Read articleThe Adapter pattern converts a legacy API's interface into a protocol expected by new code. This guide covers how to create a conversion boundary in Swift, simplify replacement and testing, and distinguish it from other wrapping patterns.
Read articleiOS developers encounter the delegate pattern constantly.
Read articleThe code clearly runs, but why does changing one feature require edits in so many places?
Read articleYou’ve probably seen code where everything lives in a single 800-line view file.
Read articleWhen building an iOS app, you inevitably hit situations like this: something changes on screen A, and a distant screen B also needs to update.
Read articleHave you ever dealt with code where if-else branches kept multiplying for each payment method?
Read articleIn the previous article, we covered the first three letters of SOLID—SRP, OCP, and LSP. Today, we’ll wrap up the remaining two.
Read articleHave you ever encountered a function like this during a code review?
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