JSFiddle - React, Tailwind, and code Playground

by Alex Azuero

JavaScript

var cashRegister = {
    total:0,
    add: function(itemCost){
        this.total += itemCost;
    },
    scan: function(item, quantity) {
        switch (item) {
        case "eggs": this.add(0.98 * quantity ); break;
        case "milk": this.add(1.23 * quantity); break;
        case "magazine": this.add(4.99 * quantity); break;
        case "chocolate": this.add(0.45 * quantity); break;
        }
    }
};

// scan each item 4 times
cashRegister.scan('eggs', 4);
cashRegister.scan('milk', 4);
cashRegister.scan('magazine', 4);
cashRegister.scan('chocolate', 4);

//Show the total bill
alert('Your bill is $'+cashRegister.total);