SWIFT

Swift Function Return Type

// function definition
func findSquare (num: Int) -> Int {
  var result = num * num
  return result
}

// function call
var square = findSquare(num: 3)

print("Square:",square)

how to set return type swift

func aFunction() -> <RETURN_TYPE> {
	return <RETURN_TYPE>
}

//call function like this
aFunction()

Function Return Types in swift

func functionWithReturnType() -> String {  return "I must return a string"}

Swift Function Return Type

func addNumbers() -> Int {
  ...
  return sum
}

Swift Function Return Type

// function definition
func findSquare (num: Int) -> Int {
  var result = num * num
  return result
}

// function call
var square = findSquare(num: 3)

print("Square:",square)