println("Step 1: How to create a wrapper String class which will extend the String type")

class DonutString(s: String) {

  def isFavoriteDonut: Boolean = s == "Glazed Donut"

}

println("\nStep 2: How to create an implicit function to convert a String to the wrapper String class")

object DonutConverstions {

  implicit def stringToDonutString(s: String) = new DonutString(s)

}

println("\nStep 3: How to import the String conversion so that it is in scope")

import DonutConverstions._

println("\nStep 4: How to create String values")

val glazedDonut = "Glazed Donut"

val vanillaDonut = "Vanilla Donut"

println("\nStep 5: How to access the custom String function called isFavaoriteDonut")

println(s"Is Glazed Donut my favorite Donut = ${glazedDonut.isFavoriteDonut}")

println(s"Is Vanilla Donut my favorite Donut = ${vanillaDonut.isFavoriteDonut}")

Step 1: How to create a wrapper String class which will extend the String type

Step 2: How to create an implicit function to convert a String to the wrapper String class

Step 3: How to import the String conversion so that it is in scope

Step 4: How to create String values

Step 5: How to access the custom String function called isFavaoriteDonut

Is Glazed Donut my favorite Donut = true

Is Vanilla Donut my favorite Donut = false