JSFiddle - React, Tailwind, and code Playground

HTML

Products:
<ul id='products'>
</ul>

JavaScript

var Shirt = function() {
    this.basePrice = 1;
}

Shirt.prototype.getPrice = function(){return this.basePrice};
Shirt.prototype.display = function(){
    $('ul#products').append('<li>Product: $' + this.getPrice() + '.00</li>');
};

var ExpensiveShirt = function() {
    this.basePrice = 5;
};
ExpensiveShirt.prototype = Object.create(Shirt);
//TShirt.prototype.getPrice = Shirt.prototype.getPrice;
//TShirt.prototype.display = Shirt.prototype.display;

var s = new Shirt();
s.display();
console.log(s.getPrice());

var e = new ExpensiveShirt();
e.display();
console.log(e.getPrice());