JSFiddle - React, Tailwind, and code Playground

by wwwroot

JavaScript

/* Prototype pattern */
    var ViewModel = function(tax) {
        this._tax = tax;
    };

    ViewModel.prototype = {
        _addTax: function (net) {
            return net + net * this._tax;
        },
        printPrice: function (price) {
            console.log(this._addTax(price));
        }
    }
    
    new ViewModel(0.2).printPrice(1000);