Newtonsoft.Json.JsonWriter.WriteUndefined C# (CSharp) Method

        public virtual void WriteUndefined()
        {
            InternalWriteValue(JsonToken.Undefined);
        }

		public void ValueFormatting()
		{
			StringBuilder sb = new StringBuilder();
			StringWriter sw = new StringWriter(sb);

			using (JsonWriter jsonWriter = new JsonWriter(sw))
			{
				jsonWriter.WriteStartArray();
				jsonWriter.WriteValue('@');
				jsonWriter.WriteValue("\r\n\t\f\b?{\\r\\n\"\'");
				jsonWriter.WriteValue(true);
				jsonWriter.WriteValue(10);
				jsonWriter.WriteValue(10.99);
				jsonWriter.WriteValue(0.99);
				jsonWriter.WriteValue(0.000000000000000001d);
				jsonWriter.WriteValue(0.000000000000000001m);
				jsonWriter.WriteValue(null);
				jsonWriter.WriteValue("This is a string.");
				jsonWriter.WriteNull();
				jsonWriter.WriteUndefined();
				jsonWriter.WriteEndArray();
			}

			string expected = @"[""@"",""\r\n\t\f\b?{\\r\\n\""'"",true,10,10.99,0.99,1E-18,0.000000000000000001,"""",""This is a string."",null,undefined]";
			string result = sb.ToString();

			Console.WriteLine("ValueFormatting");
			Console.WriteLine(result);

			Assert.AreEqual(expected, result);
		}