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The power of key paths in Swift
Swift keeps gaining more and more features that are more dynamic in nature, while still retaining its focus on type safe code.
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As a programmer, you will come across the term sooner or later and I think it is important to understand what they are and have some theoretical background about them.

Learn the meaning of @escaping, so you know what to do when you see it or when you need to write one.

The relevance of SOLID principles in 2020.
NSManagedObject properties can be updated upon insert, modification, or deletion using methods like awakeFromInsert and prepareForDeletion.

Asking about your attempted solution rather than your actual problem.

You can read the release notice from release-manager Hans Wennborg here.
I’m excited to announce Swift Algorithms, a new open-source package of sequence and collection algorithms, along with their related types.