按属性值对对象数组进行排序

一个简单的代码：

    var homes = [
        {
            "h_id": "3",
            "city": "Dallas",
            "state": "TX",
            "zip": "75201",
            "price": "162500"
        }, {
            "h_id": "4",
            "city": "Bevery Hills",
            "state": "CA",
            "zip": "90210",
            "price": "319250"
        }, {
            "h_id": "5",
            "city": "New York",
            "state": "NY",
            "zip": "00010",
            "price": "962500"
        }
    ];

    let sortByPrice = homes.sort(function (a, b) 
    {
      return parseFloat(b.price) - parseFloat(a.price);
    });

    for (var i=0; i<sortByPrice.length; i++)
    {
      document.write(sortByPrice[i].h_id+' '+sortByPrice[i].city+' '
       +sortByPrice[i].state+' '
       +sortByPrice[i].zip+' '+sortByPrice[i].price);
      document.write("<br>");
    }

用于对多个数组对象字段进行排序。在arrprop数组中输入您的字段名称，例如，["a","b","c"] 然后传递arrsource我们要排序的第二个参数实际来源。

function SortArrayobject(arrprop,arrsource){
arrprop.forEach(function(i){
arrsource.sort(function(a,b){
return ((a[i] < b[i]) ? -1 : ((a[i] > b[i]) ? 1 : 0));
});
});
return arrsource;
}

homes.sort(function(a, b){
  var nameA=a.prices.toLowerCase(), nameB=b.prices.toLowerCase()
  if (nameA < nameB) //sort string ascending
    return -1 
  if (nameA > nameB)
    return 1
  return 0 //default return value (no sorting)
})

价格降序：

homes.sort((x,y) => {return y.price - x.price})

价格升序：

homes.sort((x,y) => {return x.price - y.price})

仅对于普通的元素值数组：

function sortArrayOfElements(arrayToSort) {
    function compareElements(a, b) {
        if (a < b)
            return -1;
        if (a > b)
            return 1;
        return 0;
    }

    return arrayToSort.sort(compareElements);
}

e.g. 1:
var array1 = [1,2,545,676,64,2,24]
output : [1, 2, 2, 24, 64, 545, 676]

var array2 = ["v","a",545,676,64,2,"24"]
output: ["a", "v", 2, "24", 64, 545, 676]

对于对象数组：

function sortArrayOfObjects(arrayToSort, key) {
    function compareObjects(a, b) {
        if (a[key] < b[key])
            return -1;
        if (a[key] > b[key])
            return 1;
        return 0;
    }

    return arrayToSort.sort(compareObjects);
}

e.g. 1: var array1= [{"name": "User4", "value": 4},{"name": "User3", "value": 3},{"name": "User2", "value": 2}]

output : [{"name": "User2", "value": 2},{"name": "User3", "value": 3},{"name": "User4", "value": 4}]

如果你使用Underscore.js，尝试sortBy：

// price is of an integer type
_.sortBy(homes, "price"); 

// price is of a string type
_.sortBy(homes, function(home) {return parseInt(home.price);}); 

使用ECMAScript 6，StoBor的答案可以更加简洁：

homes.sort((a, b) => a.price - b.price)

虽然我知道OP希望对数字数组进行排序，但该问题已被标记为有关字符串的类似问题的答案。为此，以上答案未考虑对大小写很重要的文本数组进行排序。大多数答案都将字符串值转换为大写/小写，然后以一种或另一种方式进行排序。我坚持的要求很简单：

• 按字母顺序AZ
• 同一单词的大写值应位于小写值之前
• 相同的字母（A / a，B / b）值应分组在一起

我所期望的[ A, a, B, b, C, c ]只是上述答案的回报A, B, C, a, b, c。实际上，我在这个问题上挠头的时间比我想要的要长（这就是为什么我发布此文档，希望它可以帮助至少一个其他人）。虽然有两个用户localeCompare在注释中提到了该功能以标记答案，但直到我在搜索时偶然发现该功能后，我才看到它。阅读String.prototype.localeCompare（）文档后，我可以提出以下建议：

var values = [ "Delta", "charlie", "delta", "Charlie", "Bravo", "alpha", "Alpha", "bravo" ];
var sorted = values.sort((a, b) => a.localeCompare(b, undefined, { caseFirst: "upper" }));
// Result: [ "Alpha", "alpha", "Bravo", "bravo", "Charlie", "charlie", "Delta", "delta" ]

这告诉函数将大写值排在小写值之前。localeCompare函数中的第二个参数是定义区域设置，但是如果您保留它，undefined则它将自动为您确定区域设置。

这也适用于对对象数组进行排序：

var values = [
    { id: 6, title: "Delta" },
    { id: 2, title: "charlie" },
    { id: 3, title: "delta" },
    { id: 1, title: "Charlie" },
    { id: 8, title: "Bravo" },
    { id: 5, title: "alpha" },
    { id: 4, title: "Alpha" },
    { id: 7, title: "bravo" }
];
var sorted = values
    .sort((a, b) => a.title.localeCompare(b.title, undefined, { caseFirst: "upper" }));

您可以将JavaScript sort方法与回调函数一起使用：

function compareASC(homeA, homeB)
{
    return parseFloat(homeA.price) - parseFloat(homeB.price);
}

function compareDESC(homeA, homeB)
{
    return parseFloat(homeB.price) - parseFloat(homeA.price);
}

// Sort ASC
homes.sort(compareASC);

// Sort DESC
homes.sort(compareDESC);

我参加聚会的时间不晚，但下面是我排序的逻辑。

function getSortedData(data, prop, isAsc) {
    return data.sort((a, b) => {
        return (a[prop] < b[prop] ? -1 : 1) * (isAsc ? 1 : -1)
    });
}

我推荐GitHub：Array sortBy-sortBy使用Schwartzian变换的方法的最佳实现

但是现在，我们将尝试这种方法Gist：sortBy-old.js。
让我们创建一个对数组进行排序的方法，该方法能够按某种属性排列对象。

创建排序功能

var sortBy = (function () {
  var toString = Object.prototype.toString,
      // default parser function
      parse = function (x) { return x; },
      // gets the item to be sorted
      getItem = function (x) {
        var isObject = x != null && typeof x === "object";
        var isProp = isObject && this.prop in x;
        return this.parser(isProp ? x[this.prop] : x);
      };

  /**
   * Sorts an array of elements.
   *
   * @param  {Array} array: the collection to sort
   * @param  {Object} cfg: the configuration options
   * @property {String}   cfg.prop: property name (if it is an Array of objects)
   * @property {Boolean}  cfg.desc: determines whether the sort is descending
   * @property {Function} cfg.parser: function to parse the items to expected type
   * @return {Array}
   */
  return function sortby (array, cfg) {
    if (!(array instanceof Array && array.length)) return [];
    if (toString.call(cfg) !== "[object Object]") cfg = {};
    if (typeof cfg.parser !== "function") cfg.parser = parse;
    cfg.desc = !!cfg.desc ? -1 : 1;
    return array.sort(function (a, b) {
      a = getItem.call(cfg, a);
      b = getItem.call(cfg, b);
      return cfg.desc * (a < b ? -1 : +(a > b));
    });
  };

}());

设置未排序的数据

var data = [
  {date: "2011-11-14T16:30:43Z", quantity: 2, total: 90,  tip: 0,   type: "tab"},
  {date: "2011-11-14T17:22:59Z", quantity: 2, total: 90,  tip: 0,   type: "Tab"},
  {date: "2011-11-14T16:28:54Z", quantity: 1, total: 300, tip: 200, type: "visa"},
  {date: "2011-11-14T16:53:41Z", quantity: 2, total: 90,  tip: 0,   type: "tab"},
  {date: "2011-11-14T16:48:46Z", quantity: 2, total: 90,  tip: 0,   type: "tab"},
  {date: "2011-11-14T17:25:45Z", quantity: 2, total: 200, tip: 0,   type: "cash"},
  {date: "2011-11-31T17:29:52Z", quantity: 1, total: 200, tip: 100, type: "Visa"},
  {date: "2011-11-14T16:58:03Z", quantity: 2, total: 90,  tip: 0,   type: "tab"},
  {date: "2011-11-14T16:20:19Z", quantity: 2, total: 190, tip: 100, type: "tab"},
  {date: "2011-11-01T16:17:54Z", quantity: 2, total: 190, tip: 100, type: "tab"},
  {date: "2011-11-14T17:07:21Z", quantity: 2, total: 90,  tip: 0,   type: "tab"},
  {date: "2011-11-14T16:54:06Z", quantity: 1, total: 100, tip: 0,   type: "Cash"}
];

使用它

安排所述阵列，通过"date"如String

// sort by @date (ascending)
sortBy(data, { prop: "date" });

// expected: first element
// { date: "2011-11-01T16:17:54Z", quantity: 2, total: 190, tip: 100, type: "tab" }

// expected: last element
// { date: "2011-11-31T17:29:52Z", quantity: 1, total: 200, tip: 100, type: "Visa"}

如果要忽略大小写，请设置parser回调：

// sort by @type (ascending) IGNORING case-sensitive
sortBy(data, {
    prop: "type",
    parser: (t) => t.toUpperCase()
});

// expected: first element
// { date: "2011-11-14T16:54:06Z", quantity: 1, total: 100, tip: 0, type: "Cash" }

// expected: last element
// { date: "2011-11-31T17:29:52Z", quantity: 1, total: 200, tip: 100, type: "Visa" }

如果要将"date"字段转换为Date类型：

// sort by @date (descending) AS Date object
sortBy(data, {
    prop: "date",
    desc: true,
    parser: (d) => new Date(d)
});

// expected: first element
// { date: "2011-11-31T17:29:52Z", quantity: 1, total: 200, tip: 100, type: "Visa"}

// expected: last element
// { date: "2011-11-01T16:17:54Z", quantity: 2, total: 190, tip: 100, type: "tab" }

您可以在此处使用以下代码： jsbin.com/lesebi

感谢@Ozesh的反馈，解决了与伪造属性有关的问题。

您想用Javascript排序吗？您想要的是sort()功能。在这种情况下，您需要编写一个比较器函数并将其传递给sort()，所以类似这样：

function comparator(a, b) {
    return parseInt(a["price"], 10) - parseInt(b["price"], 10);
}

var json = { "homes": [ /* your previous data */ ] };
console.log(json["homes"].sort(comparator));

您的比较器将数组中每个嵌套的哈希值之一作为对象，然后通过检查“价格”字段来确定哪个更高。

如果您拥有符合ES6的浏览器，则可以使用：

• 箭头功能
• Number（）函数
• sort（）函数

升序和降序排序顺序之间的区别是您的compare函数返回的值的符号：

var ascending = homes.sort((a, b) => Number(a.price) - Number(b.price));
var descending = homes.sort((a, b) => Number(b.price) - Number(a.price));

这是一个工作代码段：

var homes = [{
  "h_id": "3",
  "city": "Dallas",
  "state": "TX",
  "zip": "75201",
  "price": "162500"
}, {
  "h_id": "4",
  "city": "Bevery Hills",
  "state": "CA",
  "zip": "90210",
  "price": "319250"
}, {
  "h_id": "5",
  "city": "New York",
  "state": "NY",
  "zip": "00010",
  "price": "962500"
}];

homes.sort((a, b) => Number(a.price) - Number(b.price));
console.log("ascending", homes);

homes.sort((a, b) => Number(b.price) - Number(a.price));
console.log("descending", homes);

要对其进行排序，您需要创建一个带有两个参数的比较器函数。然后使用该比较器函数调用sort函数，如下所示：

// a and b are object elements of your array
function mycomparator(a,b) {
  return parseInt(a.price, 10) - parseInt(b.price, 10);
}
homes.sort(mycomparator);

如果要升序排序，请在减号的每一侧切换表达式。

按价格升序对房屋进行排序：

homes.sort(function(a, b) {
    return parseFloat(a.price) - parseFloat(b.price);
});

或在ES6版本之后：

homes.sort((a, b) => parseFloat(a.price) - parseFloat(b.price));

一些文档可以在这里找到。