/**
 * Code Test: You have an array of objects in JavaScript.
 *            Each one contains a name (a string) and ranking (a number). Write two functions,
 *            one to return the objects ordered by ranking and another to return the average
 *            ranking.
 */


 let arr = [
   {
     name: 'name1',
     rank: 12
   },
   {
     name: 'name2',
     rank: 22
   },
   {
     name: 'name3',
     rank: 3
   },
   {
     name: 'name4',
     rank: 4
   }
];

const orderedByRanking = function(arr) {
  arr.sort(function(a, b){
      return a.rank-b.rank
  })
  return arr
};

console.log(orderedByRanking(arr));
output:
[{…}, {…}, {…}, {…}]0: {name: "name3", rank: 3}1: {name: "name4", rank: 4}2: {name: "name1", rank: 12}3: {name: "name2", rank: 22}name: "name2"rank: 22__proto__: Objectlength: 4__proto__: Array(0)


const averageRanking = function(arr) {
  let total = 0;
    for (let i = 0; i < arr.length; i++) {
      total += arr[i]['rank']
    }
    return  total/arr.length;
}

console.log(averageRanking(arr)); // 10.25