var emptyObject = Object.create(null);

var o;  

// create an object with null as prototype

o = Object.create(null);  

o = {};

// is equivalent to:

o = Object.create(Object.prototype);  

function Constructor(){}

o = new Constructor();

// is equivalent to:

o = Object.create(Constructor.prototype);

// Of course, if there is actual initialization code in the Constructor function, the Object.create cannot reflect it  

// create a new object whose prototype is a new, empty object

// and a adding single property 'p', with value 42

o = Object.create({}, { p: { value: 42 } })  

// by default properties ARE NOT writable, enumerable or configurable:

o.p = 24

o.p

//42  

o.q = 12

for (var prop in o) {

   console.log(prop)

}

//"q"  

delete o.p

//false  

//to specify an ES3 property

o2 = Object.create({}, { p: { value: 42, writable: true, enumerable: true, configurable: true } });