在数组中按数组排序对象？

Question

我有一个如下所示的本地存储：

Key: Savedme        
Value:
{
 "Bob":["1","1"],
 "John":["2","1"],
 "Mom":["3","1"],
 "Dad":["1","2"],
 "Tom":["3","2"],
 "Skipper42":["2","3"],
 "Hated_41":["3","3"],
 "Greeneggs":["2","2"],
 "William":["1","3"]
}

我需要以某种方式对其进行排序，使其看起来像这样

{
 "Bob":["1","1"],
 "Dad":["1","2"],
 "William":["1","3"]
 "John":["2","1"],
 "Greeneggs":["2","2"],
 "Skipper42":["2","3"],
 "Mom":["3","1"],
 "Tom":["3","2"],
 "Hated_41":["3","3"]
}

我试过将它存储在这样的矩阵中：

var $runthrough = [[]];
$runthrough[$x,$y] = $values;

其中 x 是第一组数字，y 是下一组，然后 values 是 Bob、Dad 等...从那里我可以为矩阵的两个部分做一个 foreach 并且它会完成，但是当我在运行一组对象后使用此方法时，第二组给出了一个 "undefined"，即使我已经设置了一些触发器来检查并且它实际上并没有未定义。

var loadarray = JSON.parse(localStorage.getItem( 'savedme' ));
$.each(loadarray, function(k, v) {
     if(typeof k === 'undefined' || !k){
        console.error("undefined found at k!");
    };
     if(typeof v[0] === 'undefined' || !v[0]){
        console.error("undefined found at x!");
    };
     if(typeof v[1] === 'undefined' || !v[1]){
         console.error("undefined found at y!");
    };
});

所以我开始意识到，我可能对数组做错了，所以我认为整理数组然后使用相同的函数会更快。它必须这样排序，因为它基本上要输出到矩阵 table，我试过这样排序：

  {
    "1":["1","Bob"],
    "2":["1","John"],
  }

但是...索引值 1 会被最后一个值覆盖

Answer 1

对象属性在 JavaScript 中没有保证顺序，您需要使用 Array。

对象的定义来自 ECMAScript Third Edition (pdf):

4.3.3 Object
An object is a member of the type Object. It is an unordered collection of properties each of which contains a primitive value, object, or function. A function stored in a property of an object is called a method.

试试这样的数据结构：

[
 { name: "Bob", value: ["1","1"] },
 { name: "Dad", value: ["1","2"] },
 { name: "William", value: ["1","3"] },
 { name: "John", value: ["2","1"] },
 { name: "Greeneggs", value: ["2","2"] },
 { name: "Skipper42", value: ["2","3"] },
 { name: "Mom", value: ["3","1"] },
 { name: "Tom", value: ["3","2"] },
 { name: "Hated_41", value: ["3","3"] }
]

你可以像这样生成这个结构：

var loadarray = JSON.parse(localStorage.getItem( 'savedme' ));
var sorted = [];
for (var prop in loadarray) {
    if (loadarray.hasOwnProperty(prop)) {
        sorted.push({name:prop, value:loadarray[prop]});
    }
}
sorted.sort(function(a, b) {
    var v0 = a.value[0] - b.value[0];
    return v0 == 0 ? a.value[0] - a.value[0] : v0;
});

Answer 2

键无法在对象中排序。

但是，可以使用 Object.keys(object).sort().

按顺序处理

在这里，我将对象输出到一个数组——按键值排序——然后显示该数组：

var obj= {
 "Bob":["1","1"],
 "John":["2","1"],
 "Mom":["3","1"],
 "Dad":["1","2"],
 "Tom":["3","2"],
 "Skipper42":["2","3"],
 "Hated_41":["3","3"],
 "Greeneggs":["2","2"],
 "William":["1","3"]
}

var arr= Object.keys(obj)
          .sort(function(a, b) {
            if(obj[a][0]===obj[b][0]) {
              return obj[a][1] - obj[b][1];
            }
            else {
              return obj[a][0] - obj[b][0];
            }
          })
          .map(function(key) {
            var o= {};
            o[key]= obj[key];
            return o;
          });

document.body.innerHTML= JSON.stringify(arr);

Answer 3

您可以使用相同的索引链接值的增量。

var a = [
  { "Bob": ["1", "1"] },
  { "John": ["2", "1"] },
  { "Mom": ["3", "1"] },
  { "Dad": ["1", "2"] },
  { "Tom": ["3", "2"] },
  { "Skipper42": ["2", "3"] },
  { "Hated_41": ["3", "3"] },
  { "Greeneggs": ["2", "2"] },
  { "William": ["1", "3"] }
];

a.sort(function (a, b) {
  var aa = a[Object.keys(a)],
      bb = b[Object.keys(b)];
  if (aa[0] === bb[0]) {
    return aa[1] - bb[1];
  } else {
    return aa[0] - bb[0];
  }
});
document.querySelector("#demo").innerHTML = JSON.stringify(a, null, 4);

<div id="demo"></div>

2021 年更新

const
    array = [{ Bob: ["1", "1"] }, { John: ["2", "1"] }, { Mom: ["3", "1"] }, { Dad: ["1", "2"] }, { Tom: ["3", "2"] }, { Skipper42: ["2", "3"] }, { Hated_41: ["3", "3"] }, { Greeneggs: ["2", "2"] }, { William: ["1", "3"] }];

array.sort((a, b) => {
    const
        aa = Object.values(a)[0],
        bb = Object.values(b)[0];
 
    return aa[0] - bb[0] || aa[1] - bb[1];
});

console.log(array);

.as-console-wrapper { max-height: 100% !important; top: 0; }

Answer 4

很晚了，但是你可以试试这个，假设你有一个数组：

var data=[{Value:
{
 "Bob":["1","1"],
 "John":["2","1"],
 "Mom":["3","1"],
 "Dad":["1","2"],
 "Tom":["3","2"],
 "Skipper42":["2","3"],
 "Hated_41":["3","3"],
 "Greeneggs":["2","2"],
 "William":["1","3"]
}}];

data.forEach((elem)=>{
    for(const property in elem.Value){
        var k = elem.Value[property];
        k.sort((a,b)=>a-b);
    }
});

console.log(data);

在数组中按数组排序对象？

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