ilIEnumerable
IEnumerable is a fundamental interface in the .NET Framework that represents a sequence of elements that can be enumerated. It is defined in the System.Collections namespace. The primary purpose of IEnumerable is to provide a standard way to iterate over a collection of items.
The IEnumerable interface has a single method, GetEnumerator(), which returns an IEnumerator object. The IEnumerator interface,
Implementing IEnumerable allows a class to be used in constructs like foreach loops, which are a convenient
LINQ (Language Integrated Query) heavily relies on IEnumerable. Many LINQ extension methods operate on or return