example user class

user.js

function User(firstName, lastName) {
  this.firstName = firstName;
  this.lastName = lastName;
}

User.prototype.fullName = function() {
  return this.firstName + ' ' + this.lastName;
}

userObjects.each(function(user) {
  var u = new User(user.firstName, user.lastName);
  userStore.store(u);
})