How to take all but the last element in a sequence using LINQ?

Question

Let\'s say I have a sequence.

IEnumerable sequence = GetSequenceFromExpensiveSource();
// sequence now contains: 0,1,2,3,...,999999,1000000
         


        

Answer 1

Why not just .ToList() on the sequence, then call count and take like you did originally..but since it's been pulled into a list, it shouldnt do an expensive enumeration twice. Right?