C# IEqualityComparer nerelerde kullanılıyor Üzerinde Buzz söylenti

C# IEqualityComparer nerelerde kullanılıyor Üzerinde Buzz söylenti

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1 Writing code without knowing what it actually does is called cargo cult programming. It’s a surprisingly widespread practice. It fundamentally doesn’t work.

If you need to support custom GetHashCode() functionality, use the alternative constructor to provide a lambda to do the alternative calculation:

If either Player instance is null, then we cannot compare the two usernames. The two players cannot be equal.

Bir dahaki sefere versiyon yapmış olduğumda kullanılmak üzere aşamaı, e-posta adresimi ve web şehir adresimi bu tarayıcıya kaydet.

In other words support the use of this interface if you are developing a custom collection and you want to allow your consumers to control equality which is used in a number of LINQ and collection related methods (eg. Sort).

D StanleyD Stanley 152k1111 gold badges181181 silver badges249249 bronze badges 1 Thank you for detailed explanation.

I would say that the best use would be when you need to plug in different equality rules for a certain algorithm. Much C# IEqualityComparer nerelerde kullanılıyor in the same way that a sorting algorithm might accept an IComparer, a finding C# IEqualityComparer Nasıl Kullanılır algorithm might accept an IEqualityComparer

$begingroup$ I have made some modifications, and am curious birli to what the best strategy for showing them would be? replace the original C# IEqualityComparer Nasıl Kullanılır codeblock, or add underneath? $endgroup$

EDIT2: As mentioned in the comments doing reflection within Equals or even GetHashCode is a bad idea kakım it´s usually quite slow and dirilik often be avoided. If you know the properties to be checked for eqality at compile-time you should definitly include them within those two methods kakım doing so gives you much more safety.

players: khalidabuhakmeh and nicoleabuhakmeh. Our next step is to implement the IEqualityComparer. Let’s first look C# IEqualityComparer Kullanımı at the interface itself.

Birey apophatic theology offer a coherent resolution to the "sorun of the creator of God"? more hot questions

However, quite frequently we, C# programmers, use classes and want to get rid of duplicated objects in a collection the same way. Suppose, we do something with actors of a movie:

It looks like you're forgetting the immutable nature of IEnumerable. None of the LINQ methods actually change the original variable.

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