Your First iOS & SwiftUI App: An App from Scratch

Feb 13 2023 Swift 5.7, iOS 16, Xcode 14

Part 3: Coding in Swift

25. If / Else Statements

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Previous episode: 24. Challenge: How to Calculate the Difference Next episode: 26. Challenge: Calculate the Difference

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This video If / Else Statements was last updated on Feb 13 2023

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Back in our project, let’s implement the algorithm we just designed to calculate the difference between the slider and the target value in Swift.

if something is true {
  then do this
} else if something else is true {
  then do that instead
} else {
  do something when neither of the above are true
func points(sliderValue: Int) -> Int {
  var difference: Int
  if sliderValue > target {
    difference = sliderValue - target
  } else if target > sliderValue {
    difference = target - sliderValue
  } else {
    difference = 0
  var awardedPoints: Int = 100 - difference
  return awardedPoints