switch expression c#
var switchValue = 3;
var resultText = switchValue switch
{
1 or 2 or 3 => "one, two, or three",
4 => "four",
5 => "five",
_ => "unknown",
};switch expression c#
var switchValue = 3;
var resultText = switchValue switch
{
1 or 2 or 3 => "one, two, or three",
4 => "four",
5 => "five",
_ => "unknown",
};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(),
};Copyright © 2021 Codeinu
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