Why is dictionary so much faster than list?

Question

I am testing the speed of getting data from Dictionary VS list.
I\'ve used this code to test :

    internal class Program
{
    private static void Mai         


        

Answer 1

When using Dictionary you are using a key to retrieve your information, which enables it to find it more efficiently, with List you are using Single Linq expression, which since it is a list, has no other option other than to look in entire list for wanted the item.