1.
var Calculator = function() {
//private variables
//private functions
return {
//public members
};
};

2.
var Calculator = function(eq) {
//private member
var eqCtl = document.getElementById(eq);
return {
var calculator = new Calculator('eq');
//expose public member calculator.add(2,2)
add: function(x,y) {
var val = x + y;
eqCtl.innerHTML = val;
}
};
};

3.
newObject oldObject

4.
car vehicle

5.
newObject Constructor.prototype