Some algorithms depend on multiple inputs. Tuple patterns allow you to switch based on multiple values expressed as a tuple. The following code shows a switch expression for the game rock, paper, scissors:
public static string RockPaperScissors(string first, string second)
=> (first, second) switch
{
("rock", "paper") => "rock is covered by paper. Paper wins.",
("rock", "scissors") => "rock breaks scissors. Rock wins.",
("paper", "rock") => "paper covers rock. Paper wins.",
("paper", "scissors") => "paper is cut by scissors. Scissors wins.",
("scissors", "rock") => "scissors is broken by rock. Rock wins.",
("scissors", "paper") => "scissors cuts paper. Scissors wins.",
(_, _) => "tie"
};
