const FANCY_TOILET = new FancyToilet('Kohler');

function Toilet(brand) {
  this.brand = brand;
  this.tankCapacity = 4.8;
}

Toilet.prototype.sanitize = function() {
  console.log(`Sanititizing ${this.brand}`);
}

function FancyToilet(brand) {
  Toilet.call(this, brand);
  // this.constructor = FancyToilet;
}

FancyToilet.prototype = new Toilet();

FancyToilet.prototype.useBidet = function() {
  console.log('Ahh, refreshing!');
}

console.log(FANCY_TOILET.constructor);
FANCY_TOILET.useBidet(); // 'Uncaught TypeError: FANCY_TOILET.useBidet is not a function'

FANCY_TOILET.sanitize();

console.log(FANCY_TOILET.brand);