Customizing Codable with Property Wrappers
Conforming to the Codable protocol is the standard way in Swift to decode external formats of data into native Swift model types. If your JSON maps one-to-one with your model…
Wrapping your head around Property Wrappers
Property Wrappers, which were introduced in Swift 5.1, are a layer around instance properties to provide custom logic when accessing them. Before their availability, if we wanted to execute any…
Generics Part 2 – Type Constraints
Welcome to part 2 of the series where we study the fundamentals of Generics in Swift. If you have not read part 1 or lost your memory, please review it…
Generics Part 1 – Functions and Types
There are eleventy billion articles about Generics in Swift on the web and this is article number eleventy billion and one – part 1.
Forging a Swift Sequence
The Swift Standard Library ships with many collections such as Arrays, Dictionaries and Sets. In addition to its English Language meaning, Collection also means a Swift protocol that inherits from…
Understanding Codable by going behind the scenes
Most of us who have been using Swift to build apps have exchanged data with servers, and this data is usually in some well known format such as JSON, XML…
Making a case for Result
Swift introduced the Result type in its 5.0 release (Apple documentation). Using it, we can represent both success and error cases with a single type. It is highly useful with…
Error. A localized description
I was living under a rock until very recently and believed that the Error protocol was truly empty with no requirements. While it is true that there are no requirements,…