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ss.sort(function(a, b){
    return a.UserID > b.UserID;
});

var obj = {
    1 :[{userID:'1'}],
    2 :[{userID:'2'}],
    H :[{userID:'3'}],
    Z :[{userID:'4'}],
};
var objKeys = Object.keys(obj);
objKeys.sort((a,b) =>{
    return a>b;
}).map((val) => {
    console.log("userID "+ obj[val][0].userID)
});
/ 輸出
// userID 1
// userID 2
// userID 3
// userID 4

No solution. If sorted, you should use an array. Or with an array of keys.

The order in objects is not specified in ES5, so different engines may be different.

ES6, Object.getOwnPropertyNames() and Object.getOwnPropertySymbols() and Reflect.ownKeys() which is equivalent to the combination of the two will output in a certain order, but it is not the answer you want.

It seems that the structure of json is arranged in the order of numbers and dictionaries. If this is the case, you can sort it manually.

1. I feel that if your page display is exactly in the sorting order returned by the backend, then you don’t need to sort, just display it directly.
2. If the desired order is different from the back-end order, then it depends on which fields the products are sorted and displayed. Then you sort based on this field in the object.
You should be able to get what you want.

// 對(duì)array 排序
 res.sort((a, b) => {
   if (a.UserID > b.UserID ) {  // 可以改成其他key
      return 1
   } else {
      return -1
   }
  })

Because json objects have no order, "pre-arranged order" does not actually exist.
If the front end wants to sort based on key names, it can first take out the key names, sort them, and then get the content.

Since the background returns sorted data, if you use ajax to request data, dataType: json, after you receive the data, just traverse it directly and fill it in the template. If the order is wrong, I feel it’s because the data you got from the background is wrong

Object.keys(objs).sort()可以獲取到排好序的keys

var objs = {
    f: {
        id: 2,
        name: '2'
    }, 
    a: {
        id: 3,
        name: '3'
    }, 
    c: {
        id: 1,
        name: '1'
    }
};
// 自定義排序規(guī)則，按對(duì)象的id排序
var sortedObjKeys = Object.keys(objs).sort(function(a, b) {
    return objs[b].id - objs[a].id;
});

// 按默認(rèn)排序規(guī)則，按對(duì)象的key排序
var sortedObjKeys = Object.keys(objs).sort();

for (var index in sortedObjKeys) {
    console.log(sortedObjKeys[index]);
    console.log(objs[sortedObjKeys[index]]);
    console.log('----------');
}

If you want to have sequential values, save them in an array, and then put them in the json attributes.

Object.keys(obj).sort(function() {
    // 為了以防萬一，這里先排好鍵值順序，代碼省略，也可以直接用sort()默認(rèn)排序
}).map(function(v) {
    return obj[v]; // 根據(jù)原鍵名從obj中再找對(duì)應(yīng)的項(xiàng)
});

In this way, an array is returned, which is in a fixed order.