islandjoe/swift-recursion.md

Created May 31, 2018 15:21

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Recursion in Swift

Raw

func countDown(from: Int) {
  // Stop condition
  if from < 0 {
    return
  }
  
  print(from)
  // Recursion
  countDown(from: from - 1)
}

countDown(from: 10)

func countUp(from: Int, to: Int) {
  // Stop condition
  if from > to {
    return
  }
  
  print(from)
  // Recursion
  countUp(from: from + 1, to: to)
}

countUp(from: 10, to: 20)