另一个关于Object的例子。值、sort()和展开运算符。

var paintings = {
    0: {
        title: 'Oh my!',
        year: '2020',
        price: '3000'
    },
    1: {
        title: 'Portrait V',
        year: '2021',
        price: '2000'
    },
    2: {
        title: 'The last leaf',
        year: '2005',
        price: '600'
    }
}

我们使用object .values将对象转换为对象数组:

var toArray = Object.values(paintings)

然后我们对数组进行排序(按年份和价格)，使用spread操作符使原始数组不可变，并使用sort()方法对数组进行排序:

var sortedByYear = [...toArray].sort((a, b) => a.year - b.year)
var sortedByPrice = [...toArray].sort((a, b) => a.price - b.price)

最后，我们生成新的排序对象(同样，使用展开运算符来保持以[x: number]为键的对象的object的原始形式):

var paintingsSortedByYear = {
    ...sortedByYear
}

var paintingsSortedByPrice = {
    ...sortedByPrice
}

希望这对你有所帮助!

另一种解决方法:-

var res = [{"s1":5},{"s2":3},{"s3":8}].sort(function(obj1,obj2){ 
 var prop1;
 var prop2;
 for(prop in obj1) {
  prop1=prop;
 }
 for(prop in obj2) {
  prop2=prop;
 }
 //the above two for loops will iterate only once because we use it to find the key
 return obj1[prop1]-obj2[prop2];
});

//res将有结果数组

function sortObjByValue(list){
 var sortedObj = {}
 Object.keys(list)
  .map(key => [key, list[key]])
  .sort((a,b) => a[1] > b[1] ? 1 : a[1] < b[1] ? -1 : 0)
  .forEach(data => sortedObj[data[0]] = data[1]);
 return sortedObj;
}
sortObjByValue(list);

Github Gist Link

如果我有一个这样的对象，

var dayObj = {
              "Friday":["5:00pm to 12:00am"] ,
              "Wednesday":["5:00pm to 11:00pm"],
              "Sunday":["11:00am to 11:00pm"], 
              "Thursday":["5:00pm to 11:00pm"],
              "Saturday":["11:00am to 12:00am"]
           }

我想按天排序，

我们应该先有daySorterMap，

var daySorterMap = {
  // "sunday": 0, // << if sunday is first day of week
  "Monday": 1,
  "Tuesday": 2,
  "Wednesday": 3,
  "Thursday": 4,
  "Friday": 5,
  "Saturday": 6,
  "Sunday": 7
}

初始化一个单独的对象sortedDayObj，

var sortedDayObj={};
Object.keys(dayObj)
.sort((a,b) => daySorterMap[a] - daySorterMap[b])
.forEach(value=>sortedDayObj[value]= dayObj[value])

你可以返回sortedDayObj

下划线。js或Lodash.js用于高级数组或对象排序

var data = { "models": { "LTI": [ "TX" ], "Carado": [ "A", "T", "A(пасс)", "A(груз)", "T(пасс)", "T(груз)", "A", "T" ], "SPARK": [ "SP110C 2", "sp150r 18" ], "Autobianchi": [ "A112" ] } }; var arr = [], obj = {}; for (var i in data.models) { arr.push([i, _.sortBy(data.models[i], function(el) { return el; })]); } arr = _.sortBy(arr, function(el) { return el[0]; }); _.map(arr, function(el) { return obj[el[0]] = el[1]; }); console.log(obj); <script src="https://cdn.jsdelivr.net/npm/lodash@4.17.21/lodash.min.js" integrity="sha256-qXBd/EfAdjOA2FGrGAG+b3YBn2tn5A6bhz+LSgYD96k=" crossorigin="anonymous"></script>

JavaScript对象根据定义是无序的(参见ECMAScript语言) 规范，第8.6节)。语言规范甚至不能保证，如果你连续迭代一个对象的属性两次，第二次它们会以相同的顺序出现。

如果你需要对事物进行排序，可以使用数组和array .prototype.sort方法。