Swaps the values of two variables of the same type.

Pass both values by reference using the ref keyword, then use a temp variable to swap their values.


public static partial class _30s 
  public static void Swap<T>(ref T val1, ref T val2) 
    var temp = val1;
    val1 = val2;
    val2 = temp;


string a = "Ipsum";
string b = "Lorem";

_30s.Swap(ref a, ref b); // a = "Lorem", b = "Ipsum"