JSFiddle - React, Tailwind, and code Playground

JavaScript

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


function top (cars,num) {
    return cars.slice(0).sort(function(a,b){
        return b.price - a.price;
    }).slice(0,num);
}

console.log(top(cars));