En iyi Tarafı C# IStructuralEquatable Nasıl kullanılır

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If equality is hamiş needed for the derived class you birey 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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Reference types (read classes) don't benefit birli much. The IEquatable implementation does let you avoid a cast from System.Object but that's a very trivial gain. I still like IEquatable to be implemented for my classes since it logically makes the intent explicit.

Equals and object.ReferenceEquals. Equals is meant to be overridden for whatever sort of comparison makes the most sense for a given type, whereas ReferenceEquals can't be overridden and always compares by reference.

Bey an example, it might make sense for two different instances of an Employee class to be considered equal if they both represent the same entity in your system.

Structural equality means that two objects are equal because they have equal values. It differs from reference equality, which indicates that two object references are equal because they reference the same physical object. The IStructuralEquatable interface enables you to implement customized comparisons to check for the structural equality of collection objects.

IStructuralEquatable is quite new and unknown, but I read somewhere that it kişi be used to compare the contents of collections and arrays. Am I wrong, or is my .Safi wrong?

The following example creates two identical 3-tuple objects whose components consist of three Double values. The value of the second component is Double.NaN. The example then calls the Tuple.Equals method, and it calls the IStructuralEquatable.Equals method three times. The first time, it passes the default equality comparer that is returned by the EqualityComparer.

Coming soon: Throughout 2024 we will be phasing out GitHub Issues bey the feedback mechanism for content and replacing C# IStructuralEquatable nedir it with a new feedback system. For more information see: .

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GitHub'da bizimle işbirliği örgün Bu yürekğin kaynağı GitHub'da bulunabilir; burada ayrıca sorunları ve çekme isteklerini oluşturup gözden geçirebilirsiniz. Daha ziyade olgun ciğerin ulamada bulunan kılavuzumuzu inceleyin.

He, makalede nekais olabilir. Bunu tenkit olarak onaylama ediyorum. Işlevsel programlamada struct kullanılmasının nedenini de bilmiyor, performans ve özge mevzular için da herhangi bir görüş çitndırmıdeğerlendirme. Siz biliyorsanız lütfen aydınlatır mısınız?

The IStructuralEquatable interface supports only custom comparisons for structural equality. The IStructuralComparable interface supports custom structural comparisons for sorting and ordering.

Specifically, I do not know the exact type of the object. The only assumption I make is that it inherit from IStructuralEquatable.