带有多个键的JavaScript Array.sort（）[重复]

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这个问题在这里已有答案:

How to sort an array of objects by multiple fields? 22 answers

如何按多个字段对对象数组进行排序? 22个答案

Can someone help me with Array.sort()? I can do sorting on one value (e.g. return a < b) but not with more values. I need this case, when some primary values has the same result.

有人可以帮我解决Array.sort()吗?我可以对一个值进行排序(例如,返回 )但不能使用更多值。我需要这种情况,当一些主要值具有相同的结果时。

E.g. array:

var data =    [
        {
            "name": "Paolos Pizza", 
            "rating_count": 20,
            "rating_value": 5,
            "price": 7
        },

        {
            "name": "Bella Italia", 
            "rating_count": 55,
            "rating_value": 3,
            "price": 7
        },

        {
            "name": "Mama Mia", 
            "rating_count": 2,
            "rating_value": 5,
            "price": 99
        },

        {
            "name": "Mario's" ,
            "rating_count": 23,
            "rating_value": 6,
            "price": 7
        },

        {
            "name": "Colazione e Roma" ,
            "rating_count": 52,
            "rating_value": 4,
            "price": 7
        }

    ];

First I want to sort the Array descending on the key price. If some entries have the same price, than I want to sort it ascending depending on rating_value. If some entries have the same price and the same rating_value, than I want to sort ascending on rating_count.

首先,我想根据关键价格对Array进行排序。如果某些条目具有相同的价格,那么我希望根据rating_value对其进行升序排序。如果某些条目具有相同的价格和相同的rating_value,那么我想在rating_count上按升序排序。

How can I solve this?

我怎么解决这个问题?

2 个解决方案

#1

You can chain the comparison parts with logical OR || and take the difference as result for the sort order callback.

您可以使用逻辑OR ||链接比较部分并将差异作为排序顺序回调的结果。

var array = [{ "name": "Paolos Pizza", "rating_count": 20, "rating_value": 5, "price": 7 }, { "name": "Bella Italia", "rating_count": 55, "rating_value": 3, "price": 7 }, { "name": "Mama Mia", "rating_count": 2, "rating_value": 5, "price": 99 }, { "name": "Mario's", "rating_count": 23, "rating_value": 6, "price": 7 }, { "name": "Colazione e Roma", "rating_count": 52, "rating_value": 4, "price": 7 }];

array.sort(function (a, b) {
    return b.price - a.price ||
        a.rating_value - b.rating_value ||
        a.rating_count - b.rating_count;
});

document.write('<pre>' + JSON.stringify(array, 0, 4) + '</pre>');

#2

This is your solution:

这是你的解决方案:

arr.sort(function(a,b) {
    if(a.price != b.price) return a.price < b.price;
    if(a.rating_value != b.rating_value) return a.rating_value < b.rating_value;
    return a.rating_count < b.rating_count;
});

You can make sorting direction accordingly..

你可以相应地做出排序方向。

#1