Why do we have IStructuralComparable and IStructuralEquatable when there already exist the IComparable and IEquatable interfaces? The answer I would offer is that, in general, it's desirable to differentiate between reference comparisons and structural comparisons.
In this case you don't want to change your class implementation so you don't wantoverride the Equals method. this will define a general way to compare objects in your application.
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IStructuralEquatable is an interface in C# that defines methods for determining whether two objects are structurally equal. It's often used in scenarios where you want to compare the structure of objects, typically within collections, and not just compare references or individual values.
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.
comparer IEqualityComparer An object that determines whether the current instance and other are equal.
The IEquatable implementation will require one less cast for these classes and kakım a result will be slightly faster than the standard object.Equals method that would be used otherwise. Kakım an example see the different implementation of the two methods:
We sevimli also make our own container play well with these other containers by implementing these interfaces.
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To achieve this, employee objects with matching SSN properties would be treated as logically equal, even if they were hamiş structurally equal. Share Improve this answer Follow
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There is no need for an equality operator that accepts different C# IStructuralEquatable nedir types. That should not even compile. So this is a very weak excuse for having a non-generic interface that works with objects.
3 feature called Tuple Equality! That is 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!