text: function User(firstName, lastName, age, gender) {
    this.firstName = firstName;
    this.lastName = lastName;
    this.age = age;
    this.gender = gender;
  }
  
  
  User.prototype.getEmail = function () {
    return `${this.firstName + this.lastName}@rakshanshetty.in`;
  };
  
  const user = new User('Rakshan', 'Shetty', 21, 'M');
  
  console.log(user);
  console.log(user.getEmail().toLowerCase());
  