LANGUAGE · 52 ARTICLES
Continue through the latest Swift language articles.
All articles
Swift Copy-on-Write shares storage when value types are assigned and performs an actual copy only when one side is modified. This explains how the optimization preserves value semantics while reducing the role of the Prototype pattern.
Read articleOne of the most common lines in iOS crash logs is unrecognized selector sent to instance.
Read articleWhen writing Swift, you eventually wonder: Why are optionals so strict? Why are arrays copied? Why does guard exist? Digging into these questions leads to Swift’s three original goals: Safe, Fast, and Expressive.
Read articleDid you have this thought when you first saw SwiftUI?
Read article"Why do we still use @autoreleasepool in the ARC era?"
Read articleRunning this code in Objective-C produces a rather surprising result.
Read articleWhy Swift String rejects integer indices, starting with extended grapheme clusters. Verify Character, Unicode scalar, and UTF-8 differences in composed Hangul by running code.
Read articleIn Objective-C code, [receiver message] syntax wrapped in brackets looks like an ordinary method call.
Read articleiOS development has a point that often causes confusion.
Read articleReference, shallow, and deep copies differ in how much newly created data they duplicate. This article explains the pitfalls of reference types inside Swift value types and how Copy-on-Write preserves independent copies.
Read articleSwift guard handles failure conditions first and keeps the happy path flat. Verify its compiler guarantees over if, optional-binding scope, and when to choose return, throw, or continue with runnable examples.
Read articleSwift error-handling tools differ by when failures are handled and what information must be preserved. We compare throws, do-catch, try?, try!, and Result alongside their runtime behavior.
Read article