C # HashSet Advantages

The Set data structure is finally added to C # in .NET Framework 3.5. It is a powerful data structure that makes the programmer's life easier …

The C # set is called HashSet. It is modeled by a mathematical set, meaning that the element must be unique. In other words, Set ensures that there are no duplicate elements

Why is it possible to simply check the list before adding an element to see if it already exists, creating a Set data structure in C # The answer is because the search list is very slow. A HashSet is basically designed to allow quick search, making the insertion faster.

The collection has different implementations. Some of the hash elements make the insert and find operations faster. However, this means that the order of adding elements will be lost. The other implementations keep the order of addition at the expense of slower runtimes.

The HashSet class in C # is used in the second method to preserve the order of the elements. It is still much faster than the regular list. Some basic benchmarks show that the HashSet is much faster when dealing with the main types (int, double, bool, etc.). Work class objects are much faster. So HashSet is fast.

HashSet's only capture is that the index does not have access. To access an element, you can use an enumerator, or you can use the built-in function to convert the HashSet to a list and repeat it.