Check if List values are consecutive

Question

List dansConList = new List();
dansConList[0] = 1;
dansConList[1] = 2;
dansConList[2] = 3;

List dansRandomList = new List

        

Answer 1

Extension method:

public static bool IsConsecutive(this IEnumerable myList)
{
    return myList.SequenceEqual(Enumerable.Range(myList.First(), myList.Last()));
}

Useage:

bool isConsecutive = dansRandomList.IsConsecutive();