ARCHIVE · 18
Follow the trail from foundational concepts to practical engineering decisions.
Swift has an unusual coexistence: beginners start with one line, print("Hello"), in Playgrounds, while the same language implements a standard library tangled with generics and macros. A coding education app for elementary students (Swift…
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When you build a screen that spawns lots of game effects, frames can suddenly start stuttering.
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When building an iOS app, you eventually encounter it: one screen mixing loading, success, failure, and empty-data states.
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When studying OOP, you hear “encapsulation” countless times, but when someone asks, “So how do you do it in code?”, you can suddenly go blank. You understand the concept, but your hands do not know what to write.
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Build a small reference-backed buffer and verify one detachment on the first shared write, with no extra detachment on a later unique write.
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