#HEASET CODEBOX CODE#

To get the hash code integer value, we can Object.GetHashCode method. Comparing the integer value is much faster than comparing two objects using the equals method. That's why we use a hash code as a value in a HashSet collection. Unequal objects can have identical hash codes.Two equal objects return hash codes that are equal.Hash codes are a way to compare two objects to see if they are equal: In C#, hash is an integer value that identifies a particular value. So now that we have the IEquatable interface implemented, using our new class in a HashSet collection will work. The code above overrides the default Object.Equals method and uses a string's hash code as a way to compare equality between two Car objects. SupportsRecursion ) private readonly HashSet _hashSet = new HashSet ( ) # region Implementation of ICollection. Private readonly ReaderWriterLockSlim _lock = new ReaderWriterLockSlim (LockRecursionPolicy. It returns true if an element is found in the set, otherwise false. The Contains() method checks whether a specified element is present in the HashSet. To clear the underlying slots and release the memory, we need to call the TrimExcess method immediately after. It clears the elements, but not the underlying buckets and slots array. The Clear() method removes all items from the set. If the item is already present in the HashSet, this method does nothing and returns false. The Add() method adds an item to the HashSet but only if the item is not already present in the HashSet. Contains: Determines whether a HashSet contains an element with the specified value.Clear: Removes all elements from a HashSet.Add: Adds the specified element to a HashSet if it is not already present.When we don't add or remove elements frequently, a HashSet outperforms other collections. The performance of HashSet depends on the load factor that is used by this collection of data structure. The implementation uses an array for the implementation and integer as a key. The time required to access the element in a HashSet is constant, independent of the number of items added to it. The performance of a HashSet is based on a hash function implementation. To use a HashSet, you must first have an instance of a HashSet. Doesn't use indices, so the ElementAt method called on a HashSet object with an integer as a parameter will return the element at the specified position.Is serializable because it implements ISerializable interface.Can add or remove elements, but it performs the best with a fixed length.When working with HashSet, note that HashSet: A HashSet collection is not thread safe, so it should implement a Thread Safe code by using the synchronization techniques.A HashSet has superior performance when compared to other collections because of its intrinsic implementation.A HashSet collection is not sorted and cannot have duplicate elements.

The most important features of a HashSet are: HasSet contains unique elements, so the implementation makes it possible to search through the data faster. Collection data structures have a major impact on the application performance.Ī HashSet is a data structure that is used for high-performance operations.

Heaset codebox