- swift
- swift-zero-expert
- swift-fundamentals
Swift from Zero to Expert #3: Strings and Characters — much more than text
Unicode scalars, grapheme clusters, why string[0] doesn't exist in Swift, and how Substring shares memory with the original String.
Tag
swift
12 articles
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- swift
- swift-zero-expert
- swift-fundamentals
Swift from Zero to Expert #2: Collections — Array, Set and Dictionary under the hood
Discover how Swift's collections work inside: when to use each one, their algorithmic complexity, and the elegance of copy-on-write.
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- swift
- swift-zero-expert
- swift-fundamentals
Swift from Zero to Expert #1: Data types, operators, and how Swift thinks about memory
First article in the Swift from Zero to Expert series. We explore fundamental data types, operators, and why Swift decides to put things on the stack.
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- swift
- ios
- performance
Mastering Instruments (Part 2): Stack vs. Heap, Symbolication, and Early Detection
Understand how your app manages memory, why dSYMs are critical, and how to detect performance issues before opening Instruments.
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- swift
- ios
- performance
Mastering Xcode Instruments: Mental Models, Bottlenecks, and Signposts
Learn to think like a performance detective. We break down Instruments from mental models to practical hang resolution and code instrumentation with Signposts.
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- swift
- concurrency
- ios
Complete Swift 6.2 Guide: Approachable Concurrency Explained
Interactive guide covering the 5 feature flags of Approachable Concurrency in Xcode 26, recommended configuration, and step-by-step migration guide.
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- swift
- ai
Swift Refresh 2025 – Day 5: Modern AI, Foundation Models, and AI-powered development
A deep dive into Day 5 of Swift Refresh Workshop 2025: neural networks, Transformers, Apple on-device models, FoundationModels, and practical methodology for integrating AI into apps.
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- swift
- concurrency
- ios
Swift Refresh 2025 – Day 4 (Part 2): Modern Observation and Reactive UIKit
A deep dive into the second part of Day 4: Observation as AsyncSequence, truly reactive UIKit with observable models, and typed notifications.
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- swift
- concurrency
Swift Refresh 2025 – Day 4 (Part 1): Memory, Real Concurrency, and Synchronization
A deep dive into the first part of Day 4: inline arrays, Span, real concurrency with actors, mutex, and atomics. Swift no longer protects, it demands intention.
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- swift
- swiftui
Swift Refresh 2025 – Day 3: Liquid Glass, animations, SwiftData, and Xcode as an agent
A recap of Day 3 from Swift Refresh Workshop 2025: state, Liquid Glass, declarative animations, SwiftData, and the new role of Xcode as an agent.
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- swift
- concurrency
- swiftui
Swift Refresh 2025 – Day 2: Concurrency in Practice + Liquid Glass (Without Visual Noise)
An honest recap of Day 2: strict concurrency with Swift 6 and the Liquid Glass visual language in iOS 26, without losing clarity.
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- swift
- concurrency
Swift Refresh 2025 – Day 1: Concurrency in Swift 6.2 (Without Unnecessary Pain)
An honest recap of Swift 6.2 strict concurrency: actors, @MainActor, Sendable, and how to migrate without suffering in real-world projects.