Property pattern in C#8 with keyword switch ,Enum pattern via switch

static void PropertyPatternDemo()
        {
            string url = "https://devblogs.microsoft.com/dotnet/do-more-with-patterns-in-c-8-0/";
            bool result = ShouldAllow(new Uri(url));
            Console.WriteLine(result);
        }

       static bool ShouldAllow(Uri uri) => uri switch
        {
            { Scheme: "http", Port: 80,Host:var host} => host.Length<1000,
            { Scheme: "https", Port: 443 } => true,
            { Scheme: "ftp", Port: 21 } => true,
            { IsLoopback: true } => true,
            _ => false
        };

 

enum Seasons { Spring,Summer,Fall,Winter};

static void EnumPatternDemo()
        {
            int tp = AverageTemp(Seasons.Spring, false);
            Console.WriteLine(tp);
        }

        static int AverageTemp(Seasons sea, bool dayTime) => (sea, dayTime) switch
        {
            (Seasons.Spring, true) => 20,
            (Seasons.Spring, false) => 16,
            (Seasons.Summer, true) => 27,
            (Seasons.Summer, false) => 22,
            (Seasons.Fall, true) => 18,
            (Seasons.Fall, false) => 12,
            (Seasons.Winter, true) => 10,
            (Seasons.Winter, false) => -2,
            _ => throw new Exception("Unexpected combination")
        };