Category Archives: Swift

Command line calculator in Swift 4.2

I just published a command line calculator written in Swift 4.2 with a big README explaining how it all works. What a fun challenge! Enjoy… https://github.com/ijoshsmith/command-line-calculator

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Simple deep linking in Swift

If you need to support deep links with a custom URL scheme in your iOS or tvOS app, check out my tidy little API to help convert URLs into deep link objects. It’s written in Swift 3. I published it on … Continue reading

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Reflectable enums in Swift 3

Suppose you are working on a Swift program that needs a data model to represent a contact, such as a person from the user’s address book or a FaceBook friend. You might start off by modeling this as a Contact … Continue reading

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json2swift: a peek under the hood

This article presents a high-level overview of how my json2swift tool works. Several people have expressed interest in using my code as the foundation for a similar tool, or just want to change the Swift code it generates, and have asked … Continue reading

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Swift JSON library vs. code generation

Ever since Swift was first released there has been an endless stream of new libraries to simplify writing Swift code that consumes JSON data. Since this is such a common and tedious aspect of developing apps, it’s an important topic … Continue reading

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Create Swift data models from JSON

I published a tool that analyzes JSON data and generates Swift data model code, named json2swift. This tool helps eliminate most of the error-prone grunt work involved with consuming JSON data in a Swift app. The repository’s README has more … Continue reading

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Concealment design pattern in Swift

This article introduces a design pattern that I call Concealment, and demonstrates how to use the pattern in Swift code. Purpose The Concealment pattern enables types to support novel, related functionality without adding nonessential members to their interface. Motivation User-defined types can easily be overused in a codebase, giving more prominence to … Continue reading

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