Basic Ternary Operator

basicTernaryOperator.swift

// Bad way using if statement
func showMyView(bool: Bool) {
 
  if bool == true {
    UIView.animate(withDuration: 0.33, animations: {
      self.myView.alpha =  1.0
    })
  } else {
    UIView.animate(withDuration: 0.33, animations: {
      self.myView.alpha = 0.0
    })
}


// Better way using Ternary Operator
func showMyView(bool: Bool) {
  UIView.animate(withDuration: 0.33, animations: {
    self.myView.alpha =  bool ? 1.0 : 0.0
  })
}
 
 
 // Another example of using a bool stated differently. Any bool result will do.
 var isMyArrayEmpty = myArray.count == 0 ? true :  false
 
 
 // Another example of changing the way a button looks based on a bool.
     func activateButton(bool: Bool) {
      
        let image = bool ? onImage : offImage
        let title = bool ? "Activated!" : "OFF"
        let titleColor = bool ? UIColor.white : UIColor.yellow
        let buttonColor = bool ? UIColor.red : UIColor.blue
        
        setImage(image, for: .normal)
        setTitle(title, for: .normal)
        setTitleColor(titleColor, for: .normal)
        backgroundColor = buttonColor
    }