Scala Language Pattern Matching Pattern Matching on tuples
Example
Given the following List of tuples:
val pastries = List(("Chocolate Cupcake", 2.50),
("Vanilla Cupcake", 2.25),
("Plain Muffin", 3.25))
Pattern matching can be used to handle each element differently:
pastries foreach { pastry =>
pastry match {
case ("Plain Muffin", price) => println(s"Buying muffin for $price")
case p if p._1 contains "Cupcake" => println(s"Buying cupcake for ${p._2}")
case _ => println("We don't sell that pastry")
}
}
The first case shows how to match against a specific string and get the corresponding price. The second case shows a use of if and tuple extraction to match against elements of the tuple.
