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Languages & runtimes · #swift
Learn how to wrap a URLSession GET request in a Swift function that returns Result<Data, Error>, validates HTTP status, handles errors, and provides recovery strategies.
Learn how Swift's Result type makes error handling explicit and composable, especially in async/await code, with a concrete example and trade‑offs.
Learn how Foundation's Codable protocol eliminates manual JSON mapping in Swift, with a concrete example, configuration tips, and practical limitations.
Learn how to implement Swift Task Groups to manage dynamic parallelism, avoid thread starvation, and eliminate callback hell using structured concurrency.
Nimble replaces boolean XCTest assertions with matchers that explain failures. Here is what changes, a worked async example, and the trade-offs to weigh.
Apple's Unified Logging (os.Logger) replaces NSLog and print with leveled, privacy-redacting, low-overhead diagnostics. Here's how to adopt it in Swift and pull logs off a real device.
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