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Swift

Learn more and get better in Swift using this list of Swift blog posts, tutorials, tips, and tricks.

Existential any in Swift explained with code examples

Existential any allows you to define existential types in Swift by prefixing a type with the any keyword. In short, ...
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  •  5 min read Swift

Some keyword in Swift: Opaque types explained with code examples

The some keyword in Swift declares opaque types, and Swift 5.1 introduced it with support for opaque result types. Many ...
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  •  6 min read Swift

Increase App Ratings by using SKStoreReviewController

SKStoreReviewController allows asking your users for App Store ratings from within the app. Positive ratings can help your app stand ...
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  •  6 min read OptimizationSwift

Memory leaks prevention using an autoreleasepool in unit tests

Memory leaks often happen without notice. Although best practices like using a weak reference to self inside closures help a ...
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  •  4 min read Swift

AsyncSequence explained with Code Examples

AsyncSequence is part of the concurrency framework and the SE-298 proposal. Its name implies it's a type providing asynchronous, sequential, ...
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  •  4 min read ConcurrencySwift

AsyncThrowingStream and AsyncStream explained with code examples

AsyncThrowingStream and AsyncStream are part of the concurrency framework introduced in Swift 5.5 due to SE-314. Async streams allow you ...
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  •  5 min read ConcurrencySwift

Using MetricKit to monitor user data like launch times

The MetricKit framework allows us to collect all kinds of data from our end users, including launch times and hang ...
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  •  5 min read Swift

AnyObject, Any, and any: When to use which?

AnyObject and Any got a new option any as introduced in SE-355, making it harder for us developers to know ...
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  •  4 min read Swift

How to use the #available attribute in Swift

Marking pieces of code as available or unavailable per platform or version is required in the ever-changing landscape of app ...
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  •  5 min read Swift

Self-documenting code in Swift to increase readability

Self-documenting code helps explain a piece of code to other developers on a project without the need for actual documentation ...
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  •  6 min read Swift

Tasks in Swift explained with code examples

Tasks in Swift are part of the concurrency framework introduced at WWDC 2021. A task allows us to create a ...
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  •  6 min read ConcurrencySwift

Guard statements in Swift explained with code examples

Guard statements in Swift allow us to implement checks into our code that prevents the current scope from continuing. When ...
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  •  4 min read Swift