ARCHIVE · 14
Follow the trail from foundational concepts to practical engineering decisions.
The GoF Factory Method delegates the decision of an object's concrete type to subclasses, while Abstract Factory creates families of related products together. This article compares their intent and selection criteria with Swift examples.
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After working with AI for a while, something odd happens. It asks again about conditions you clearly set earlier, undoes fixes made above, and quietly ignores instructions from the start of the conversation. Even pointing out, “I already told you that,” helps only briefly. It isn’t broken. This comes from how AI itself handles conversation memory, and once you understand the principle, the solution is simple.
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Have you ever written tons of test code, only to miss the actual bugs—and watch tests break everywhere whenever you fix a feature?
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At some point while developing for iOS, this question comes up.
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In the closures article, when we covered breaking retain cycles with [weak self], we left one question open. There is also unowned instead of weak—what is the difference, and when should you use it? To answer, we first need to look beneath the surface at how ARC actually works.
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