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iOS Object-Oriented Swift Properties Getter and Setter Methods

Posted by RAJ PATEL
RAJ PATEL
4,282 Points

What am I doing wrong the in set{ }?

Why am I still getting an error? How am I interpreting the question wrong?

Temperature.swift 
class Temperature {
    var celsius: Float = 0.0
    var fahrenheit: Float {
      get  {
        return (celsius * 1.8) + 32.0
        }
       set {
        celsius = ((fahrenheit - 32)/1.8)
        }  

    }    
}

2 Answers

Shawn Ramsey
Shawn Ramsey
27,237 Points
Shawn Ramsey
Shawn Ramsey
27,237 Points

newValue is a default name if a property's setter doesn't define a name for the new value to be set.

Shawn Ramsey
Shawn Ramsey
27,237 Points
Shawn Ramsey
Shawn Ramsey
27,237 Points

Setters have a variable within them called newValue. Replace fahrenheit with newValue. You can also drop one set of parenthesis.

class Temperature {
  var celsius: Float = 0.0
  var fahrenheit: Float {
    get {
      return (celsius * 1.8) + 32.0
    }
    set {
      celsius = (newValue - 32) / 1.8
    }
  }
}
RAJ PATEL
RAJ PATEL
4,282 Points

What is "newValue"? What does that term mean here?