ar2zee

const purchases = [
  { name: 'Popcorn', price: 5.75 }, 
  { name: 'Movie Ticket', price: 12 },
  { name: 'Soda', price: 3.75 },
  { name: 'Candy', price: 5 },
];

const sortByMapped = (map,compareFn) => (a,b) => compareFn(map(a),map(b));
const byValue = (a,b) => a - b;
const toPrice = e => e.price;

ar2zee

var arr = [[4, 2, 7, 1], [20, 70, 40, 90], [1, 2, 0], [1, 2, 0] , [1, 2, 0] , [1, 2, 0]]; // ➞ [7, 90, 2]

function findLargestNums(arr) {
  return arr.map(x => Math.max(...x));
}

console.log(findLargestNums(arr)) 

ar2zee

class Mammal {
  constructor(sound) {
    this._sound = sound;
  }
   talk() {
     return this._sound;
   }
}

  class Dog extends Mammal {

ar2zee

var orders = [
  {amount: 250},
  {amount: 300},
  {amount: 350},
  {amount: 400}
];


// var quintyty = orders.reduce (function(sum, order) {   /*sum- first arguments our callback, order- iterated item */
//   console.log('hello', sum , order);

ar2zee

var animals = [
  {name : 'artur', food: 'potatoes'},
  {name : 'sergey', food: 'fries'},
  {name : 'anton', food: 'fries'},
  {name : 'petya', food: 'cream'},
  {name : 'oksana', food: 'chips'},
  {name : 'lesya', food: 'meat'},
  {name : 'julya', food: 'vegies'},
  {name : 'sasha', food: 'sour_cream'}
];

ar2zee

var animals = [
  {name : 'artur', food: 'fries'},
  {name : 'sergey', food: 'fries'},
  {name : 'anton', food: 'fries'},
  {name : 'petya', food: 'fries'},
  {name : 'oksana', food: 'fries'},
  {name : 'lesya', food: ''},
  {name : 'julya'},
  {name : 'sasha', food: 'fries'}
];

ar2zee

#loader {
    background: none repeat scroll 0 0 #ffffff;
    bottom: 0;
    height: 100%;
    left: 0;
    position: fixed;
    right: 0;
    top: 0;
    width: 100%;
    z-index: 9999;

ar2zee

var array = ['arg' , 'sannya' , 'katya' , 'ukr' ,'etc'];

for ( word in array) {
  console.log(array[word]);
}

ar2zee

var Genius = 'AlBErt EinsTeIn'

function changingName(oldName){
var FixedName = oldName;
  var names = oldName.split(' ');
  names[1] = names[1].toUpperCase();
  names[0] = names[0].slice(0,1).toUpperCase() + names[0].slice(1).toLowerCase();
  FixedName = names.join(' ');
  
  return FixedName;

ar2zee

var donuts = ['sanya', 'andrey', 'petya', 'ksusha'];

donuts.forEach(function(donut){
donut += ' HOLE';
donut = donut.toUpperCase();
console.log(donut);
});