Answers for "new in c# switch expression"

C#
2

c# switch case with or condition

int i = 5;
switch (i)
{
    case(1):
    case(2):
        Console.WriteLine(i);
        break;
    default:
        break;
}
Posted by: Guest on March-16-2020
0

new in c# switch expression

public static T ExhaustiveExample<T>(IEnumerable<T> sequence) =>
    sequence switch
    {
        System.Array { Length : 0}       => default(T),
        System.Array { Length : 1} array => (T)array.GetValue(0),
        System.Array { Length : 2} array => (T)array.GetValue(1),
        System.Array array               => (T)array.GetValue(2),
        IEnumerable<T> list
            when !list.Any()             => default(T),
        IEnumerable<T> list
            when list.Count() < 3        => list.Last(),
        IList<T> list                    => list[2],
        null                             => throw new ArgumentNullException(nameof(sequence)),
        _                                => sequence.Skip(2).First(),
    };
Posted by: Guest on March-15-2021

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