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tomwis/NonNullableReferenceTypes.cs

Last active August 19, 2017 15:11
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NonNullableReferenceTypes.cs
string? x = ...; // może być nullem
string s = "hello"; // nie może być nullem
var s2 = b ? " world" : x; // s2 może być nullem
string s3 = s + s2; // błąd, nie użyć tutaj s2, które jest typu string?, wtedy s3 też musiałoby być tego typu
string s3 = s + (s2 ?? " you"); // tak będzie ok
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