Description for my my friend's IT colleagues to explain them how to leave door open/closed properly.

officeOfHelena.js

/*! Closing the Door by Martin Adamko (c) 2014, MIT Licence */

var officeOfHelena = {
    person: {
        name: "Helena",
        surname: "Székhelyi"
    }
};

(function(office) {
    var door = {
            degree: 45,
            openDoor: function(degree) {
                this.degree = degree;

                return this;
            },
            closeDoor: function() {
                this.degree = 45;

                return this;
            }
        },
        API = {
            enterOffice: function(openDegree, afterDegree) {
                if (afterDegree === 45) {
                    door.openDoor(openDegree).closeDoor(45);

                    alert("Come in!");

                    return true;
                }

            alert("Try again, make sure the 2nd argument passed is 45.");

            return false;
           }
       };

    office.doorAPI = API;
}(officeOfHelena));