Oliver Foggin

A developer blog about Swift, iOS, and software engineering.

Functional Thinking in Swift: Part 3 - The power of Reduce

How Swift's reduce can derive map and filter, and how to use it to build reusable grouping tools.

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Functional Thinking in Swift: Part 2 - Filter & Reduce

A practical look at Swift's filter and reduce functions, and how to compose them with map into readable data pipelines.

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Functional Thinking in Swift: Part 1 - Map

An introduction to Swift's map function and how it helps express transformations in a clear, functional style.

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Using custom reducers to make shared data even easier with TCA

How a custom SubscriberReducer can remove repeated AsyncStream subscription boilerplate from TCA reducers.

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Leveraging custom Reducers to manage actions in your TCA app

How to use a custom NestedAction reducer to keep nested TCA actions organised while still returning top-level effects.

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