/* # */ console.log(Function.__proto__ === Function.prototype);
/* # */ console.log(Function.prototype.__proto__ === Object.prototype);
/* # */ console.log(Object.__proto__ !== Object.prototype);
/* # */ console.log(Object.__proto__ === Function.prototype);

var A = function () {};
/* # */ console.log(A.__proto__ === Function.prototype);
A.prototype.b = 100;

var a = new A();
/* # */ console.log(A.prototype.constructor === A);
/* # */ console.log(A.prototype === a.__proto__);
/* # */ console.log(a instanceof A);

A.prototype.c = 101;
/* # */ console.log(a.c === 101);

a.c = -100;
/* # */ console.log(a.c === -100);

A.prototype = {};
/* # */ console.log(A.prototype.constructor !== A);
/* # */ console.log(A.prototype.constructor === Object);
/* # */ console.log(a.c === -100);
/* # */ console.log(a.__proto__.b == 100);
/* # */ console.log(a.__proto__.c == 101);
/* # */ console.log(a.__proto__.constructor === A);
/* # */ console.log(a.__proto__ !== A.prototype);
/* # */ console.log(!(a instanceof A));
/* # */ console.log(A.prototype.constructor === Object);
/* # */ console.log(a.__proto__.constructor.prototype.constructor === Object);

A.prototype.b = 536;
/* # */ console.log(a.b == 100);
/* # */ console.log(a.__proto__.constructor.prototype.b === 536);

var b = new A();
/* # */ console.log(a.__proto__.__proto__.constructor === a.__proto__.constructor.prototype.constructor);

/* # */ console.log(b instanceof A);
/* # */ console.log(b instanceof Object);
/* # */ console.log(a instanceof Object);