This is a simple change that is going to go a long way to help code readability. As you know, Swift developers prefer declaring things as constants (using let
) rather than variables (using var
). But what if you made something a variable by accident? Or if you thought you might need to change it, then never do?
As of Xcode 7 and Swift 2, you'll get warnings in your code whenever you declare variables that never change – Xcode literally examines the way you use the variable and knows if you never change it.
SPONSORED Ready to dive into the world of Swift? try! Swift Tokyo is the premier iOS developer conference will be happened in April 9th-11th, where you can learn from industry experts, connect with fellow developers, and explore the latest in Swift and iOS development. Don’t miss out on this opportunity to level up your skills and be part of the Swift community!
Sponsor Hacking with Swift and reach the world's largest Swift community!
Download all Swift 2.0 changes as a playground Link to Swift 2.0 changes
Link copied to your pasteboard.