madeleine-chercover-hs

def match(x: Int): String = x match {
  case 1 => "one"
  case 2 => "two"
  case _ => "whatever"
}

madeleine-chercover-hs

sealed abstract class Vegetable

case class Pea(colour: String, isCooked: Boolean) extends Vegetable

case class Eggplant(colour: String, weight: Int) extends Vegetable

case class ChocolateCake(layers: Int, isVegetable: Boolean = true) extends Vegetable

madeleine-chercover-hs

def eatVegetable(vegetable: Vegetable): String =
  vegetable match {
    case Pea(colour, isCooked) =>
      s"Oh great, a ${if (isCooked) "uncooked" else "cooked" } $colour pea."
    case Eggplant(colour, _) =>
      s"No matter how I cook this $colour eggplant, it'll still be the blandest vegetable around."
    case ChocolateCake(layers, _) =>
      s"Yum, a $layers-layer chocolate cake – the best vegetable of all."
  }

madeleine-chercover-hs

def eatVegetable(vegetable: Vegetable): String =
  vegetable match {
    case ChocolateCake(layers, _) if layers > 3 =>
      "Now that's what I call a cake - I mean vegetable."
    case _ =>
      "No, thank you."
  }