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This article has code copied directly from this What's New in C# 8?


Original

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"
    };

public static string PlayRockPaperScissors(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"
    };

public static decimal ComputeIncomeTax(Address location, decimal income) =>
  location switch
  {
      { State: "TX" } => income * 0.25M, //Property pattern
      { State: "MA" } => income * 0.31M,
      { State: "NY" } => income * 0.35M,
      // other cases removed for brevity...
      _ => income * 0.30M
  };

public static decimal ComputeIncomeTax(Address location, decimal income) =>
  location switch
  {
      { State: "TX" } => income * 0.25M, //Property pattern
      { State: "MA" } => income * 0.31M,
      { State: "NY" } => income * 0.35M,
      // other cases removed for brevity...
      _ => income * 0.30M
  };