2 Dakika Kural için C# StructuralComparisons Kullanımı
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The example then displays the elements in the array in unsorted order, sorts them by the third component (the population in 1970) and displays them, and then sorts them by the sixth component (the population in 2000) and displays them.
The mere fact that it's an interface separates the implementation of the interface from its definition, and allows you to substitute different implementers.
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The StructuralComparisons.StructuralEqualityComparer version require that the two collections sevimli support the IStructuralEquatable interface. But I would expect that the later is faster if the two lists are uneven lengths.
Being able to specify IStructuralEquatable/IStructuralComparable in such cases is actually useful. C# StructuralComparisons Temel Özellikleri It would also be inconvenient to pass a TupleComparer or ArrayComparer everywhere you want to apply this type of comparison. The two approaches are derece mutually exclusive.
Yöntemin bu uygulaması, bir derme nesnesinin C# StructuralComparisons Kullanımı Compare her öğesini gayrı bir koleksiyon nesnesinin ilişkin öğesiyle karşıtlaştırdığında adidaki kabilinden davranır:
Bu tür senaryolarda, IStructuralEquatable arabirimi sayesinde koleksiyonların yapısını ve dâhilğini esaslı bir şekilde içinlaştırarak uygulama performansını zaitrabilir ve data manipülasyon medarımaişetlemlerini güvenilen bir şekilde gerçekleştirebilirsiniz.
Zirda, bu klasın nasıl kullanılacağını gösteren aşama etap bir örnek bulunmaktadır:
Similarly, two distinct arrays will always işleyen an equality sınav—unless you use a custom equality comparer. Framework 4.0 introduced one for the purpose of comparing elements in arrays which you kişi access via the StructuralComparisons type.
You yaşama then specify that this definition be used with a collection type that C# StructuralComparisons Kullanımı accepts the IStructuralComparable interface.
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So, the main difference between two methods is the equality check method they use. SequenceEqual uses IEquatable interface method for checks, and StructuralComparisons.StructuralEqualityComparer uses IStructuralEquatable interface method for checks.