Spiderman Singleton

spiderman-singleton.js

var Spiderman = (function() {
    var _firstName = "Peter";
    var _middleName = "Benjamin";
    var _lastName = "Parker";
    var _secret = "Spidey Senses";

    function _getName() {
        return _firstName + ' ' + _middleName + ' ' + _lastName;
    }

    return {
        health: 100,
        hairColor: "brown",
        eyeColor: "hazel",
        species: "Human mutate",
        superpowers: ["IQ"],
        affiliations: ["Avengers", "Fantastic Four"],
        partnerships: ["Daredevil", "Venom"],
        setHealth: function(value) {
            this.health = value;
        },
        getName: function(secret) {
            if (secret !== _secret) throw new Error("Wrong secret.. try again");

            return _getName();
        }
    }
})();

Spiderman.getName('password'); // error
Spiderman.getName('spidey senses'); // error
Spiderman.getName('Spidey Senses'); // "Peter Benjamin Parker"