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Concurrency

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October 13, 2026 Mohit Agrawal

SwiftUI Search: Debounce Requests and Prevent Stale Results

Build reliable SwiftUI search with task IDs, cancellable debouncing, and request identity checks that prevent stale results, errors, and loading state …

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October 11, 2026 Mohit Agrawal

Swift Actor Reentrancy: Stop Duplicate Network Requests

Learn why Swift actor reentrancy causes duplicate downloads, share in-flight tasks safely, handle cancellation and invalidation, and test overlapping …

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October 8, 2026 Mohit Agrawal

AsyncStream in Swift: Stop Buffering Events You Don't Need

Choose AsyncStream buffering policies, handle dropped progress updates, and stop callback producers safely with cancellation and deterministic Swift …

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October 3, 2026 Mohit Agrawal

Swift Async Cleanup: Handle Cancellation Without Leaks

Use Swift 6.4 async defer and task cancellation shields to finish essential cleanup, keep cancellation responsive, and test resource release in your …

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September 22, 2026 Mohit Agrawal

SwiftData Observers: React to Changes Beyond SwiftUI

Use SwiftData ResultsObserver and HistoryObserver beyond SwiftUI, choose the right observation model, control lifecycle, and plan safe fallbacks …

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September 21, 2026 Mohit Agrawal

BGContinuedProcessingTask in iOS: A Practical Guide

Use BGContinuedProcessingTask in iOS 26 to finish user-started exports safely, report progress, handle cancellation, and recover from interruptions …

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September 20, 2026 Mohit Agrawal

SwiftData Across Apps and Extensions Without Corruption

Share a SwiftData store safely across an iOS app, widgets, and App Intents with App Groups, migration ownership, actor isolation, and clear recovery …

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September 3, 2026 Mohit Agrawal

Swift Concurrency: Why Your Async Code Still Freezes UI

Learn why Swift async code can freeze your UI, how Task inherits actor isolation, and how to move image processing off MainActor with cancellation …

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August 24, 2026 Mohit Agrawal

Swift Testing: A Practical Guide for Senior Engineers

Swift Testing for senior iOS engineers: @Test functions, #expect and #require macros, parameterized tests, traits, async support, and migrating from …

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August 19, 2026 Mohit Agrawal

Struct vs Class in Swift 6: Concurrency-Safe Choices

How Swift 6 strict concurrency changes the struct-vs-class decision: Sendable, actors, @MainActor isolation, and the real migration pain points you'll …

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