JSFiddle - React, Tailwind, and code Playground

JavaScript

var data = {
    "prices" : [ 
        {
            "fanta":10,
            "sprite":20,
        }
    ]
};

var beverage = "fanta";
var beverage_price = data.prices[0][beverage];
document.write("beverage_price = " + beverage_price);

document.write("<br><br>");

var beverage = "sprite";
var beverage_price = data.prices[0][beverage];
document.write("beverage_price = " + beverage_price);