ARCHIVE · 26
Follow the trail from foundational concepts to practical engineering decisions.
When building apps with Swift, you write loops like for item in array dozens of times a day. Because they feel so natural, you may only start wondering how they work after a custom type fails to compile in a for-in loop: "What is actually happening inside this loop?"
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The Facade pattern provides a single, simple entry point to a subsystem involving multiple objects. Using a Swift sign-up example, this article explains how to centralize call order and how Facade differs from Adapter, Proxy, and Decorator.
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When building an iOS app with Swift, you may have wondered why this view controller receives an event after you tap a button.
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The previous modularization articles covered the principles of boundaries, dependency direction, and layer structure. Now it is time to apply them to an iOS project.
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When using AI coding tools, you often repeat the same instructions: “Use this format for commit messages” or “Follow this checklist before deployment.”
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