Eliminate consecutive duplicates of list elements

Question

Is there a \"nice\" way to eliminate consecutive duplicates of list elements?

Example:

[\"red\"; \"red\"; \"blue\"; \"green         


        

Answer 1

Like this you don't need a new object.

public static void RemoveConsecutiveDuplicates(this List collection)
{
    for (int i = 0; i < collection.Count - 1; i++)
    {
        if (collection[i].Equals(collection[i + 1]))
        {
            collection.RemoveAt(i);
            i--;
        }
    }
}

var collection = new [] { 2, 7, 7, 7, 2, 6, 4 }.ToList();
collection.RemoveConsecutiveDuplicates();