How to access object prototype in javascript?

Question

In all the articles it is written that JavaScript is a prototype-based language, meaning that every object has a prototype (or, more precisely, prototype chain).

So

Answer 1

var F = function();
F.prototype.member1 = 1;
F.prototype.getClass = F;

var object1 = new F();
object1.member1 = 2;

console.log(object1.getClass.prototype.member1); // prints 1
console.log(object1.member1); // prints 2