const numbers = [102, 101, 1.5, 1, 2, 3, 22, 77, 4, 5, 6, 7];

const prices1 = [10, 20, 30, 40, 40, 60];

const prices2 = [70, 80, 90, 100];

const names = ["Rene", "Tom", "Claire", "Ralph", "Ben"];

const colors = ["Red", "Green", "Blue", "Yellow", "Red", "Green Red"];

//.map()
//array.map(function(currentValue, index, arr), thisValue)

//.forEach()
//array.forEach(function(currentValue, index, arr), thisValue)

//.reduce()
//array.reduce(function(total, currentValue, currentIndex, arr), initialValue)

//.filter()
//array.filter(function(currentValue, index, arr), thisValue)

//.reverse()
//array.reverse()

//.concat()
//array1.concat(array2, array3, ..., arrayX)

//.join()
//array.join(separator)

//.push()
//array.push(item1, item2, ..., itemX)

//.pop()
//array.pop()

//.slice()
//array.slice(start, end)

//.splice()
//array.splice(index, howmany, item1, ....., itemX)

//.sort()
//array.sort(compareFunction)


const cars = [
  {
    name: "Mercedes",
    color: "Grey",
    age: 2,
    price: 90000
  },
  {
    name: "Opel",
    color: "Green",
    age: 1,
    price: 40000
  },
  {
    name: "VW",
    color: "Yellow",
    age: 15,
    price: 30000
  },
  {
    name: "Audi",
    color: "Blue",
    age: 3,
    price: 60000
  },
  {
    name: "Citroen",
    color: "Pink",
    age: 11,
    price: 40000
  },
  {
    name: "Jaguar",
    color: "Orange",
    age: 5,
    price: 80000
  },
  {
    name: "Ferrari",
    color: "Red",
    age: 6,
    price: 500000
  }
];

//1. 20% discount on vehicles older than 10 years
//2. Sort by price
//3. Repaint pink cars to red
//4. Total value of all cars