Your First iOS & SwiftUI App: An App from Scratch

Feb 13 2023 · Swift 5.7, iOS 16, Xcode 14

Part 3: Coding in Swift

27. Variables & Constants

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Previous episode: 26. Challenge: Calculate the Difference Next episode: 28. Type Inference

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At this point, you’ve simplified your algorithm to calculate the difference down a few lines of code.

var difference: Int = abs(target - sliderValue)
let awardedPoints: Int = 100 - difference
let awardedPoints: Int = 100 - difference
let roundedValue: Int = Int(sliderValue.rounded())
let guess = game.target + 5
let score = game.points(sliderValue: guess)