How to order an object by a parameter?

Question

I have the following object composed of the following:

[enter image description here][1]

What you see on the screen (the object), is the following: dataUserProfile.permissions[dataOriginSelect].permissions

It turns out that I want to order the object according to the 'order' parameter, from smallest to largest.

I am using something like:

const sortByFieldInt = (listToSort,field) => {
  return listToSort.sort((a, b) => {
    if(a[field] < b[field]) {
      return -1;
    }
    if(b[field] < a[field]) {
      return 1;
    }
    return 0;
  });
}

which I use like this: sortByFieldInt([dataUserProfile.permissions[dataOriginSelect].permissions], 'order')

but it fails me, what am I doing wrong? I really appreciate your time to read me and help.

That's an array with ONE element. Did you try removing the extra braces? — kelsny, Sep 16 '22 at 13:57
1. Adding code as an image isn't helpful at all. 2. I don't see any array in the picture. — Konrad, Sep 16 '22 at 14:08
@HuyPham `sortByFieldInt([dataUserProfile.permissions[dataOriginSelect].permissions], 'order')` — Francisco.js, Sep 16 '22 at 14:10
Remove the braces: `sortByFieldInt(dataUserProfile.permissions[dataOriginSelect].permissions, 'order')`; — kelsny, Sep 16 '22 at 14:12
@KonradLinkowski Indeed it is not, it is not an array of objects. I tried adding `[ ]` to the object but that doesn't work either. — Francisco.js, Sep 16 '22 at 14:13
@caTS Yes, I also tried it like this and it gives me an error: `TypeError: listToSort.sort is not a function` — Francisco.js, Sep 16 '22 at 14:15
`dataUserProfile.permissions[dataOriginSelect].permissions` ? is what I attach in the image. Its an object — Francisco.js, Sep 16 '22 at 14:38
`dataUserProfile.permissions[dataOriginSelect].permissions` is an **Object** key - value, not an **Array**. The reason why you could use `listToSort.sort()` function without errors is you passed your object in an `[ ]`. Turn out your array have only one item and that item does not have the `order` key. You must transform your object into array first. — Huy Pham, Sep 16 '22 at 15:36
@HuyPham To transform the object into an array, should I use 'Object.entries()' ? — Francisco.js, Sep 16 '22 at 15:39
It depends on the structure of the object. Try it, you could update the question if any error though. — Huy Pham, Sep 16 '22 at 15:45
@HuyPham Could you look at the image I attached at the end when performing Object.entries() ? I don't understand — Francisco.js, Sep 16 '22 at 16:51
[Please do not upload images of code/data/errors when asking a question.](//meta.stackoverflow.com/q/285551) — Heretic Monkey, Sep 16 '22 at 16:54
Use `console.log(Object.entries(dataUserProfile.permissions[dataOriginSelect].permissions), null, 2)` so that you get a better representation of the data, and it's accurate as of the time the log was made. — Heretic Monkey, Sep 16 '22 at 16:59
@HuyPham I don't understand why it creates arrays. It should be an array of objects not an array of arrays with object inside — Francisco.js, Sep 16 '22 at 17:43
Because that's how [`Object.entries`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/entries) works. — Huy Pham, Sep 16 '22 at 17:48
@HuyPham so? how can i convert it? because if you leave it that way I can't pass it through my ordering function — Francisco.js, Sep 16 '22 at 17:53

score 0 · Accepted Answer · answered Sep 16 '22 at 17:52

0

Try Object.keys() with Array.prototype.map() to transform your object into array.

const object = dataUserProfile.permissions[dataOriginSelect].permissions; // Your object in this case
console.log(Object.keys(object).map((key) => object[key]));

answered Sep 16 '22 at 17:52

Huy Pham

400
4
14

Yes, it worked for me, I added my sort function to it and it works fine: `console.log(sortByFieldInt(Object.keys(dataUserProfile.permissions[dataOriginSelect].permissions).map((key) => dataUserProfile.permissions[dataOriginSelect].permissions[key]), 'order'));` – Francisco.js Sep 16 '22 at 18:00
How can I iterate the array of objects that I stay ordered? Attached image at the end of the post – Francisco.js Sep 16 '22 at 18:32
I tried with .map() after sorting but I think 'Object.keys' doesn't accept – Francisco.js Sep 16 '22 at 18:33
There are many ways to iterate an array. Check this thread [Loop through an array in JavaScript](https://stackoverflow.com/questions/3010840/loop-through-an-array-in-javascript). – Huy Pham Sep 16 '22 at 18:41

How to order an object by a parameter?

1 Answers1