JSFiddle - React, Tailwind, and code Playground

JavaScript

var cars = ["Ferrari", "Lamborghini", "Jaguar", "Hummer", "Toyota"];
var price = [12, 34.5, 3.54, 45.9, 3.44];

result == ["Hummer", "Lamborghini", "Ferrari"];

function highest3 (cars, price) {
  for(var i=0; i<cars.length; i++) {
    console.log(price[i], cars[i]);
    result[i] = cars[price[i]];
  }
  return result;

alert(highest3(cars, price));
}