Nov 27 2016
Basic (generic) swap function
(Swift 3) var a: Int = 15 var b: Int = 12 func swap( a: inout Int, b: inout Int){ (a, b) = (b, a) } print(“a is \(a) “) //15 swap(a: &a, b: &b) print(“a is \(a) “) //12 So far, so good. I really like that this is doing away with the extra […]
Dec 5 2016
Serial Numbers
macOS 10.11/Xcode 8.0 Sometimes, you want items to have serial numbers. This is, to me, the neatest way of creating such unique identifiers – simply use a static variable, and assign it to each new item before incrementing it in the initialiser. class HazSerialNumber { static var serialCounter: Int = 1 let serial: Int init(){ […]
By Extelligent Cocoa • Extensions • • Tags: Serial Numbers