Solutions for the bball questions

bballAnswers.js

var bballPlayers = [
   { first: 'Carlos', last: 'Beltran', homeruns: 421, retired: false },
   { first: 'Ken', last: 'Griffey Jr', homeruns: 630, retired: true },
   { first: 'Hank', last: 'Aaron', homeruns: 755, retired: true },
   { first: 'Ediwn', last: 'Encarnacion', homeruns: 310, retired: false },
   { first: 'Alex', last: 'Rodriguez', homeruns: 696, retired: true },
   { first: 'Willie', last: 'Mays', homeruns: 660, retired: true },
   { first: 'Jim', last: 'Thome', homeruns: 612, retired: true },
   { first: 'Sammy', last: 'Sosa', homeruns: 609, retired: true },
   { first: 'Babe', last: 'Ruth', homeruns: 714, retired: true },
   { first: 'Albert', last: 'Pujols', homeruns: 591, retired: false },
   { first: 'Barry', last: 'Bonds', homeruns: 762, retired: true },
   { first: 'Miguel', last: 'Cabrera', homeruns: 446, retired: false },
   { first: 'Ryan', last: 'Howard', homeruns: 382, retired: false },
 ];

 // Array.prototype.filter()
 // 1. Filter the list of players who have more then 400, but less than 600 home runs
var playersAround5 = bballPlayers.filter(function(player){
  return player.homeruns > 400 && player.homeruns < 600;
});

// console.log(playersAround5);


 // Array.prototype.map()
 // 2. Give us an array of the players' first name and home runs
 var playersMap = bballPlayers.map(function(player){
   return {name: player.first, runs: player.homeruns}
 });

 //console.log(playersMap);

 // Array.prototype.sort()
 // 3. Sort the players by homeruns, most to least
 var playersSort = bballPlayers.sort(function(a, b){
   return a.homeruns < b.homeruns ? 1 : -1
 });

//  console.log(playersSort);

 // Array.prototype.reduce()
 // 4. How many homeruns did all the players hit?
 var playersReduce = bballPlayers.reduce((hrTotal, player) =>{
  return hrTotal + (player.homeruns);
}, 0);

// console.log(playersReduce);

 // 5. How many homeruns do the active players have
 var playersFilterAndReduce = bballPlayers.filter(function(player){
   return player.retired
 }).reduce(function(hrTotal, player){
  return hrTotal + (player.homeruns);
}, 0);

console.log(playersSortAndReduce);