Tagged: Swift
4 articles tagged Swift across all clusters on CodeWalkers.
Structs vs Classes in Swift
Structs copy and classes share, and that one difference drives inheritance, memory management, mutability, and identity. A criteria-based way to pick the right one for a Swift type.
Swift allSatisfy: Check That Every Element Passes a Test
The allSatisfy(_:) method answers one question about a whole collection: does every element pass this test? Syntax, the empty-collection result that surprises people, and when filter is the method you actually wanted.
Swift Sets: Unique Values, Set Algebra, and Membership Tests
A Swift Set stores unique values with no order and answers membership questions in constant time on average. How to create one, run set algebra, make your own types storable, and decide between Set and Array.
Understanding typealias in Swift
The typealias keyword gives an existing type a second name. What it does to closures, tuples, dictionaries, and generics, what it deliberately does not do, and the errors it produces.