text: var Student = (function () {
      function Student(firstname, middleinitial, lastname) {
          this.firstname = firstname;
          this.middleinitial = middleinitial;
          this.lastname = lastname;
          this.fullname = firstname + " " + middleinitial + " " + lastname;
      }
      return Student;
  })();
  function greeter(person) {
      return "Hello, " + person.firstname + " " + person.lastname;
  }
  var user = new Student("Jane", "M.", "User");
  document.body.innerHTML = greeter(user);