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

Taking @Simon Bartlett's clean approach and improving upon it, you could also perform this generically.

public static IEnumerable UniqueInOrder(IEnumerable iterable)
{
    var returnList = new List();

    foreach (var item in iterable)
    {
        if (returnList.Count == 0 || !returnList.Last().Equals(item))
            returnList.Add(item);
    }

    return returnList;
}