gistfile1.txt

var person = function() {
    var name = null,
        age = null,
        hair = null;

    return {
        birth: function() {
            name = 'Chris';
            age = 27;
            hair = 'blonde';
        },

        getAge: function() {
            return age;
        }
    };
}();
 
person.birth();
alert(person.getAge());