Goagoal-Note

string name = "Jack6";

        protected void Page_Load(object sender, EventArgs e)

        {

           

            string[] names = new string[] {"Jack","Jucy","Michael","Antony" };

            bool IsExist = Array.Exists(names, match);

            Response.Write(IsExist.ToString());

        }

        public  bool match(string nameArray) {

            return nameArray == name;

        }

string name = "Jack6";

        protected void Page_Load(object sender, EventArgs e)

        {

           

            string[] names = new string[] {"Jack","Jucy","Michael","Antony" };

            bool IsExist = Array.Exists(names,

                                                                 (string value)=>

                                                                  {

                                                                        return value == name;

                                                                   }

                                                       );

            Response.Write(IsExist.ToString());

        }

string name = "Jack6";

        protected void Page_Load(object sender, EventArgs e)

        {

           

            string[] names = new string[] {"Jack","Jucy","Michael","Antony" };

            bool IsExist = Array.Exists(names, x=>x.Equals(name));

            Response.Write(IsExist.ToString());

        }