C# IEqualityComparer Kullanımı Herkes İçin Eğlenceli Olabilir

C# IEqualityComparer Kullanımı Herkes İçin Eğlenceli Olabilir

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The last statement basically means that in case we rely on Equals(..) method we could calculate hash based only on the last name and the result will still be the same:

Note that IEqualityComparer may (and should) be used to perform more complex comparisons, however its implementation won't get much more complex in most cases.

Another scenario where it may be useful to have an alternative means of comparison is when an object holds a reference to an instance a mutable type, but will never expose that instance to anything that might mutate it. In general, two instances of int[] that hold the same sequence of values will not be interchangeable, since it would be possible that in future one or both of them might be changed to hold different values.

演算子（==）と（!=）のオーバーロードを実装します（推奨・必須ではない）

The first is the idea of precise equality. Given two references to objects, do the two references point to the same location in memory? Programming languages are suited for this kind of comparison, and .Safi comes with many prebuilt operators to handle this case.

Please also note the use of the BindingFlags parameter so you yaşama restrict the properties to only the public ones and the ones on instance-level.

Muhaliflaştırmalar koleksiyonun öğeleri arasında veya bir öğe ile tamlanan bir haysiyet arasında olur. Nesneleri karşıtlaştırmak muhtevain ve default comparerexplicit comparerkavramı vardır.

 In the plain case, when we need to drop only exact C# IEqualityComparer Kullanımı duplicates, the simple Distinct() call will do. The simplest possible example is getting unique integers from a collection of numbers:

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Bu harf, her 1 saniyede bir “Timer tetiklendi.” yazkaloriı konsola yazdıracaktır. Izlenceı sonlandırmak ciğerin herhangi bir tuşa basmanız yeterlidir.

Selamlar, bu makaslamakmda C#’ da Enum’ı güçlü nasıl kullanabilirizi ve yararlanma metodoloji C# IEqualityComparer Temel Özellikleri ve Kullanımı üzerinde duracağım. Peşi sıra enumeration class’ı ile daha çarpıcı enum kullanmaını göstereciğim.

Yeni bir referans tipi bileğfiilkeni oluşturulduğunda, yalnızca bir referans oluşturulur ve bellekteki veri bu referansın gösterdiği yerde saklanır.

What Distinct() actually does here is comparing object references. So C# IEqualityComparer nedir our C# IEqualityComparer nerelerde kullanılıyor second George Clooney is in fact an independent object (since it was created independently) and its reference differs from the reference of the first one - therefore it appears in the output twice:

Or if you need to change C# IEqualityComparer Nasıl Kullanılır how the comparer sorts, that you have to change them all? Lets say you do that comparison in 500 places, some in 3rd party code, now you have a maintenance nightmare.