prototypes1.js

// prototypes1.js

var obj = {};

console.log(Object.getPrototypeOf(obj));

/* Logs:

{ 
  constructor: ƒ Object(),
  hasOwnProperty: ƒ hasOwnProperty(),
  isPrototypeOf: ƒ isPrototypeOf(),
  propertyIsEnumerable: ƒ propertyIsEnumerable(),
  toLocaleString: ƒ toLocaleString(),
  toString: ƒ toString(),
  valueOf:  ƒ valueOf(),
  __defineGetter__: ƒ __defineGetter__(),
  __defineSetter__: ƒ __defineSetter__(),
  __lookupGetter__: ƒ __lookupGetter__(),
  __lookupSetter__: ƒ __lookupSetter__(),
  get __proto__: ƒ __proto__(),
  set __proto__: ƒ __proto__(),
}

*/