alexpaul/Using-readLine.md

Last active September 10, 2020 02:18

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Using `readLine()` to take in STDIN (input) from the user or command line and printing to the console (STDOUT).

Raw

import Foundation 

func add(a: Int, b: Int) -> Int {
  return a + b 
}

while true {
  print("enter a")
  let a = Int(readLine() ?? "") ?? 0

  print("enter b")
  let b = Int(readLine() ?? "") ?? 0

  let result = add(a: a, b: b)
  print("the result is \(result)")
}

Other Resources

Using STDIN and STDOUT