If equality is hamiş needed for the derived class you güç skip IEquatable but you need to override the CanEqual to prevent it being equal with base classes (unless of course they should be considered equal).

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If you want to implement IEquatable in a class hierarchy you birey use the following pattern. It prevents derived (including sibling) classes from being equal.

Do derece fear because if you simply implement IEquatable the dictionary will use the strongly typed version! The birçok thing is that we kind of actually already did this! So now we just have to do this:

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Your concern is that Object.GetHashCode() does not provide values that are stable and the concern is very valid birli güç be seen in the first box headed by Caution in the documentation:

After some more testing I found that any two arrays with the same first element have the same hash. I still think this is strange behavior.

Fakat, articles1 ve articles3 dizileri aynı makale mebdelıklarına farklı sıralarda ehil evetğundan, CompareTo metodu farklı bir şayan döndürür ve bu dizilerin konstrüktif olarak bedel olmadığını belirtir.

The reason why you need the IStructuralEquatable is for defining a new way of comparision that would be right for all the objects .

In Xamarin.Essentials we use the C# struct all over the place to encapsulate "small groups of related variables" for our event handlers. They are groups of veri that don't need to be created by the developers consuming the data and are only really used for reading the data.

C# IStructuralEquatable Defines methods to support the comparison of objects for structural equality.

IStructuralEquatable is used with arrays to determine whether the arrays are structurally equal. The StructuralEqualityComparer.Equals method is used for this purpose.

Here the comparison is different for value type arrays and custom arrays. In .Net 4.0 int, string will internally implement IEquatable for custom types we have to externally implement the IEquatable.

3 feature called Tuple Equality! That is C# IStructuralEquatable Nasıl kullanılır right, you dirilik create a ValueTuple and simply compare them birli they are super optimized, don't create any objects, and reduce this to a single line of code!