如何随机排列数组中的对象

How to shuffle objects in an array

本文关键字：对象 数组 何随机 排列      更新时间：2023-09-26

我目前在javascript上遇到了问题。 请帮助我如何在数组中洗牌。 我真的很感激任何帮助。非常感谢！

    // ______________________________________________Function to declare our var -> deck of cards
function getDeck() {
    var deck = [
        {suit: "H", face: "A"},
        {suit: "H", face: "2"},
        {suit: "H", face: "3"},
        {suit: "H", face: "4"},
        {suit: "H", face: "5"},
        {suit: "H", face: "6"},
        {suit: "H", face: "7"},
        {suit: "H", face: "8"},
        {suit: "H", face: "9"},
        {suit: "H", face: "10"},
        {suit: "H", face: "J"},
        {suit: "H", face: "Q"},
        {suit: "H", face: "K"},
        {suit: "C", face: "A"},
        {suit: "C", face: "2"},
        {suit: "C", face: "3"},
        {suit: "C", face: "4"},
        {suit: "C", face: "5"},
        {suit: "C", face: "6"},
        {suit: "C", face: "7"},
        {suit: "C", face: "8"},
        {suit: "C", face: "9"},
        {suit: "C", face: "10"},
        {suit: "C", face: "J"},
        {suit: "C", face: "Q"},
        {suit: "C", face: "K"},
        {suit: "D", face: "A"},
        {suit: "D", face: "2"},
        {suit: "D", face: "3"},
        {suit: "D", face: "4"},
        {suit: "D", face: "5"},
        {suit: "D", face: "6"},
        {suit: "D", face: "7"},
        {suit: "D", face: "8"},
        {suit: "D", face: "9"},
        {suit: "D", face: "10"},
        {suit: "D", face: "J"},
        {suit: "D", face: "Q"},
        {suit: "D", face: "K"},
        {suit: "S", face: "A"},
        {suit: "S", face: "2"},
        {suit: "S", face: "3"},
        {suit: "S", face: "4"},
        {suit: "S", face: "5"},
        {suit: "S", face: "6"},
        {suit: "S", face: "7"},
        {suit: "S", face: "8"},
        {suit: "S", face: "9"},
        {suit: "S", face: "10"},
        {suit: "S", face: "J"},
        {suit: "S", face: "Q"},
        {suit: "S", face: "K"},
    ];
    return deck;
}

这是随机播放代码。 我不知道这是否正确，所以也请检查。谢谢！

// ______________________________________________Function to shuffle cards
function shuffle(o) { // o is passed-in array
     for (var j, x, i = o.length; i; j = parseInt(Math.random() * i, 10), x = o[--i], o[i] = o[j], o[j] = x);
     return o;
};

// ______________________________________________Function to retrieve our deck of cards & save into localStorage
function getShoe(decks) {
    var shoe = [];
    var deck = getDeck();
    this.decks = decks;
        for (z=1;z<=decks;z++) {
            shoe.push(deck);
        }
    shoe = shuffle(shoe);
    return shoe;

    localStorage.setItem('shoe', JSON.stringify(shoe));
}

你在这里做的是：

var shoe = [];          // create an empty array
var deck = getDeck();   // create a SINGLE deck
this.decks = decks;
    for (z=1;z<=decks;z++) {
        shoe.push(deck);  // insert the SAME deck many times into the array
    }
shoe = shuffle(shoe); // you shuffle the array that contains the same deck many times, not the decks
return shoe;

你可以做：

var shoe = [];
for (var i=0; i<decks; i++){
    shoe.push(shuffle(getDeck()));
}
return shoe;
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