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52 ARTICLESStart here [Swift Basics #1] What Optionals Really Are and How to Unwrap ThemNEW[Code Smell #5] Shotgun Surgery vs Divergent Change
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[Code Smell #5] Shotgun Surgery vs Divergent Change[Code Smell #4] God Object: A Complete Guide[Advanced Swift #9] Swift ABI Stability: Why App Sizes Shrank in 2019[Code Smell #3] Ravioli code: code whose flow nobody understandsSynchronous vs. Asynchronous, Blocking vs. Non-blocking — 2×2 Guide[Advanced Swift #8] ~Copyable, Ownership, and Noncopyable Types[Swift Deep Dive #7] Swift Macros Explained: The Truth Behind @Observable[Swift Deep Dive #6] Swift Memory Layout: Property Order Changes Size[Code Smell #2] Lasagna Code: Why One Field Means Fixing Seven Files[Claude Code #3] Permissions in Review: /permissions and Mode Cycling
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[Advanced Swift #5] Swift dispatch: why final boosts performance
Method calls compile as direct calls, vtable lookups, or objc_msgSend. This article explains why final and private improve performance, the trap in protocol extensions, and how to verify it with a profiler.
Read article[Code Smell #5] Shotgun Surgery vs Divergent Change
Shotgun Surgery is a smell where one change is scattered across multiple files, while Divergent Change is its mirror image: one file changes for multiple reasons. This article explains how to measure and distinguish these opposite smells using commit history.
Read article[Code Smell #4] God Object: A Complete Guide
A God Object is a class that keeps absorbing surrounding responsibilities and data as it grows, becoming the file that changes and conflicts most often on a team. This guide covers the signals of growth, the extraction order, and two ways splitting it can fail.
Read article[Advanced Swift #9] Swift ABI Stability: Why App Sizes Shrank in 2019
App sizes shrank after Swift 5 and iOS 12.2 shipped in 2019, thanks to ABI stability. This article covers how the Swift runtime moved from every app into the OS, along with module stability and the trade-offs of @frozen.
Read article[Code Smell #3] Ravioli code: code whose flow nobody understands
Every function is five lines long and has one responsibility, yet nobody can explain what happens when a button is pressed. This article covers why decomposition goes too far, the cost revealed by jump counts, and how to recover the flow.
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