public static void Samples() { // ------------------------------------------------------------ // Creating PersistentVectors // ------------------------------------------------------------ // [create-vector] // Create an empty PersistentVector and add some elements PersistentVector <string> vector = PersistentVector <string> .Empty() .Conj("hello") .Conj("world") .Conj("!"); Console.WriteLine(vector[0]); // hello Console.WriteLine(vector[2]); // ! // Check no. of elements in the PersistentVector Console.WriteLine(vector.Length); // 3 // [/create-vector] // [modify-vector] PersistentVector <string> vector2 = vector.Conj("!!!").Update(0, "hi"); Console.WriteLine(vector2[0]); // hi Console.WriteLine(vector[0]); // hello Console.WriteLine(vector2[3]); // !!! Console.WriteLine(vector.Length); // 3 Console.WriteLine(vector2.Length); // 4 // remove the last element from a PersistentVector PersistentVector <string> vector3 = vector2.Initial; Console.WriteLine(vector3.Length); // 3 // [/modify-vector] }