What is the purpose of a HashSet in C#?

In C#, a HashSet is a collection class used for storing unique elements. Its purpose is to quickly search, insert, and remove elements.

HashSet utilizes a hash table internally, which results in high performance for inserting and querying elements. When needing to store a large amount of data without duplicate elements, HashSet is a very effective option.

HashSet also provides a range of operations such as intersection, union, difference, making it easier to manipulate collections. In addition, it also offers iterators for collections, allowing for the traversal of elements within the collection.

In conclusion, the purpose of HashSet is to store unique elements and provide fast insertion, querying, and deletion operations, as well as support for other collection operations.