Swiftui, Swift, iOS App Development, iOS Development, Mobile App Development.
objects can also perform data calculations: var totalCalories:Measurement<UnitEnergy>{ items.keys.map{ drink in drink.calories * Double(items[drink] ?? 0) }.reduce(Measurement<UnitEnergy>(value: 0, unit: .calories), +) } Create a Formatter to describe the MeasureMent. var