Swift Weekly - Issue #74

Andrew Bancroft writes about the concept of an “escaping closure” and how to handle them when developing your apps.

A lot of code that we write relies on the current date in some way. Whether it’s cache invalidation, handling time sensitive data, or keeping track of durations. John Sundell takes a look at how to test code that relies on dates in a simple and fun way — using “time traveling”.

Christian Tietze with a very simple way to use Swift protocols as UI mixins.

In this article Candost Dağdeviren writes about using SwiftLint and Danger to keep your codebase clean and consistent.

Not everyone knows ~= operator — it’s an pattern matching operator to check whether the range on the left includes the value on right. Szy extends it in a useful way in this article.

A keen developer writes a lot of unit tests to cover the code to use in production. Unfortunately, a component can sometimes be difficult to test because of its dependencies, and you would be tempted to give up. Hang on, Test Doubles are what you need to make a test easy to write.

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Tuomas Artman shares the good and the bad from Uber’s Swift rewrite.

This talk presents a fast, concrete, down-to-earth survey of machine learning, from the perspective of iOS & Swift.

In this talk, Sommer Panage explores how the structure and properties of the Swift Language make writing your application and UI code simpler.

The Swift team is pleased to announce the release of a new Swift source compatibility test suite as part of the effort to maintain source compatibility in future Swift releases.

Clue - Flexible bug report framework for iOS

Fire-in-Swift - A delightful HTTP/HTTPS networking framework for iOS/macOS/watchOS/tvOS platforms written in Swift.

This commit by Mark Lacey to the Swift compiler reworks how the next disjunction to visit by the constraint solver is selected and could improve type checking time by 11-13%.