The Most Common Issues I've Caught Reviewing Swift

This article by Chris Griffith explains three common Swift coding issues: (1) correct handling of ARC (strong, weak, unowned references and closure captures) to avoid memory leaks and crashes, (2) safe unwrapping of optionals (if/guard, optional chaining, and cautions about implicit/force unwrapping), and (3) using Codable effectively for JSON serialization (including CodingKeys, decoder strategies, and enums). It provides examples and recommendations to write safer, more idiomatic Swift code.