Does list.count physically iterate through the list to count it, or does it keep a pointer

Question

I am stepping through a large list of object to do some stuff regarding said objects in the list.

During my iteration, I will remove some objects from the list depen

Answer 1

You can use a decompiler, such as the freely-available ILSpy, to answer these questions. If you're referring to the List type, then the Count getter simply involves reading a field:

public int Count
{
    get { return this._size; }
}