Question

我有一个叫做玩家的阵列。我试图找出阵列中前七名球员的总体基础。我有一个功能，找到最好的球员，但我需要帮助，如何使我找到第二好的，等等。请帮忙！先感谢您。这是代码：

<script>
            var players = [
                {name: "Pat Moran", overall: 67, position: "AP"},
                {name: "Peter Webb", overall: 81, position: "AP"},
                {name: "Ramiro Ramirez", overall: 74, position: "AP"},
                {name: "Manuel Knight", overall: 68, position: "RP"},
                {name: "Allan Alexander", overall: 71, position: "RP"},
                {name: "Gerald Bowman", overall: 81, position: "RP"},
                {name: "Owen Day", overall: 78, position: 3},
                {name: "Jean Ford", overall: 70, position: 3},
                {name: "Guy Curtis", overall: 59, position: 3},
                {name: "Dallas Diaz", overall: 68, position: 4},
                {name: "Jesus Brooks", overall: 70, position: 4},
                {name: "Todd Beck", overall: 76, position: 4},
                {name: "Steve Cortez", overall: 66, position: 5},
                {name: "Toby Caldwell", overall: 64, position: 5},
                {name: "Seth Bradley", overall: 73, position: 5},
                {name: "Lawrence McCarthy", overall: 67, position: 6},
                {name: "Gerardo Marsh", overall: 77, position: 6},
                {name: "Alvin Nash", overall: 78, position: 6}
            ];

            function findBestPlayer() {
                var bestSoFar = 0;
                var bestPlayer;
                for (var i = 0; i < players.length; i++) {
                    if (players[i].overall > bestSoFar) {
                        bestPlayer = players[i];
                        bestSoFar = players[i].overall;
                    }
                }
                return bestPlayer;
            }

            var bestPlayer = findBestPlayer();

            document.getElementById("p1").innerHTML = bestPlayer.name;
            document.getElementById("p1ovr").innerHTML = bestPlayer.overall;
            document.getElementById("p1pos").innerHTML = bestPlayer.position;
        </script>

Answer 1

更新：Array.filter可用于仅检查可用的播放器。

您可以使用比较器功能进行排序。

＆＃13;

function comp(b, a) {
  return a.overall - b.overall;
}
var players = [{
  name: "Pat Moran",
  overall: 67,
  position: "AP",
  available: true
}, {
  name: "Peter Webb",
  overall: 81,
  position: "AP",
  available: false
}, {
  name: "Ramiro Ramirez",
  overall: 74,
  position: "AP",
  available: true
}, {
  name: "Manuel Knight",
  overall: 68,
  position: "RP",
  available: false
}, {
  name: "Allan Alexander",
  overall: 71,
  position: "RP",
  available: true
}, {
  name: "Gerald Bowman",
  overall: 81,
  position: "RP",
  available: false
}, {
  name: "Owen Day",
  overall: 78,
  position: 3,
  available: true
}, {
  name: "Jean Ford",
  overall: 70,
  position: 3,
  available: false
}, {
  name: "Guy Curtis",
  overall: 59,
  position: 3,
  available: true
}, {
  name: "Dallas Diaz",
  overall: 68,
  position: 4,
  available: false
}, {
  name: "Jesus Brooks",
  overall: 70,
  position: 4,
  available: true
}, {
  name: "Todd Beck",
  overall: 76,
  position: 4,
  available: false
}, {
  name: "Steve Cortez",
  overall: 66,
  position: 5,
  available: true
}, {
  name: "Toby Caldwell",
  overall: 64,
  position: 5,
  available: false
}, {
  name: "Seth Bradley",
  overall: 73,
  position: 5,
  available: true
}, {
  name: "Lawrence McCarthy",
  overall: 67,
  position: 6,
  available: false
}, {
  name: "Gerardo Marsh",
  overall: 77,
  position: 6,
  available: true
}, {
  name: "Alvin Nash",
  overall: 78,
  position: 6,
  available: false
}];

function checkAvailabilty(obj) {
  return !!obj.available;
}

var findBestPlayer = (function(arr) {
  // a copy of the original data is made.
  var data = arr.slice(0);
  // sort the data with a comparator function
  data.sort(comp);
  // filter out the unavailable players.
  data = data.filter(checkAvailabilty);
  return function(index) {
    return data[index];
  }
})(players);
// best player.
console.log('best available player: ', findBestPlayer(0));
// second best player.
console.log('second best available player: ', findBestPlayer(1));

＆＃13;

Answer 2

回答关于添加可用属性的第二个问题，您可以在DOM中过滤以隐藏它。您可以将map函数链接到sort，以返回已添加可用属性的已排序数组。

function comp (b,a) {
  return a.overall - b.overall;
}
var players = [
    {name: "Pat Moran", overall: 67, position: "AP"},
    {name: "Peter Webb", overall: 81, position: "AP"},
    {name: "Ramiro Ramirez", overall: 74, position: "AP"},
    {name: "Manuel Knight", overall: 68, position: "RP"},
    {name: "Allan Alexander", overall: 71, position: "RP"},
    {name: "Gerald Bowman", overall: 81, position: "RP"},
    {name: "Owen Day", overall: 78, position: 3},
    {name: "Jean Ford", overall: 70, position: 3},
    {name: "Guy Curtis", overall: 59, position: 3},
    {name: "Dallas Diaz", overall: 68, position: 4},
    {name: "Jesus Brooks", overall: 70, position: 4},
    {name: "Todd Beck", overall: 76, position: 4},
    {name: "Steve Cortez", overall: 66, position: 5},
    {name: "Toby Caldwell", overall: 64, position: 5},
    {name: "Seth Bradley", overall: 73, position: 5},
    {name: "Lawrence McCarthy", overall: 67, position: 6}
    {name: "Gerardo Marsh", overall: 77, position: 6},
    {name: "Alvin Nash", overall: 78, position: 6}
];

var findBestPlayer = players.sort(comp).map(function(player, index){
  player.available = index <= 6 ? true : false
  return player
})

// best player.
console.log(findBestPlayer[0]);

// second best player.
console.log(findBestPlayer[1]);

如何在阵列中找到第二好的？

2 个答案: