Map array of objects to Dictionary in Swift

Question

I have an array of Person\'s objects:

class Person {
   let name:String
   let position:Int
}

and the array is:

Answer 1

You can use a reduce function. First I've created a designated initializer for Person class

class Person {
  var name:String
  var position:Int

  init(_ n: String,_ p: Int) {
    name = n
    position = p
  }
}

Later, I've initialized an Array of values

let myArray = [Person("Bill",1), 
               Person("Steve", 2), 
               Person("Woz", 3)]

And finally, the dictionary variable has the result:

let dictionary = myArray.reduce([Int: Person]()){
  (total, person) in
  var totalMutable = total
  totalMutable.updateValue(person, forKey: total.count)
  return totalMutable
}