以不同顺序随机播放两个不同的数组

Question

我有两副牌：

var cardDeck = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, "J", "Q", "K", "A"];
var player1Deck = shuffle(cardDeck);
var player2Deck = shuffle(cardDeck);

洗牌：

function shuffle(o){
    for(var j, x, i = o.length; i; j = Math.floor(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
    return o;
};

但是，它们都以相同的顺序洗牌：

player1Deck = [1, 2, "A", 5, 4, 8, "J", 9, 6, 10, "Q", 7, 3, "K"];
player2Deck = [1, 2, "A", 5, 4, 8, "J", 9, 6, 10, "Q", 7, 3, "K"];

取而代之的是，我希望套牌的洗牌方式有所不同：

player1Deck = [1, 2, "A", 5, 4, 8, "J", 9, 6, 10, "Q", 7, 3, "K"];
player2Deck = ["A", 3, 1, 8, 4, 5, "K", 7, "Q", 10, 6, 9, 2, "J"];

如果可能的话，我只想保留在Javascript中。

Answer 1

问题是您的shuffle方法会进行内联改组，因此会返回相同的实例。

因此，将原始数组的副本传递给shuffle方法，您可以使用slice(0)方法

var cardDeck = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, "J", "Q", "K", "A"];
var player1Deck = shuffle(cardDeck.slice(0));
var player2Deck = shuffle(cardDeck.slice(0));