Sorting each object's key in an array of objects

Question

I have the following array of object :

var wordSpecsArr = [{a: 2, b: 2},{a: 1, b: 1, c: 1, d: 1},{b: 2, a: 2},{d: 2, a: 2},{a: 2, b: 2}]

and I would like to sort each object by keys so that it will become:

var wordSpecsArr = [{a: 2, b: 2},{a: 1, b: 1, c: 1, d: 1},{a: 2, b: 2},{a: 2, d: 2},{a: 2, b: 2}]

I have tried the following code:

//sort keys
wordSpecsArr.forEach((obj) => {
    var ordered = {};
    Object.keys(obj).sort().forEach((key) => {
        ordered[key] = obj[key]
    });
});

But it did not work. I would really appreciate any help

As far as I know, you can never be sure of the keys order in an object. — kind user, Dec 02 '18 at 20:34
replace `forEach` with `map` and add `return ordered` in the callback - that should solve it. — georg, Dec 02 '18 at 20:46

score 0 · Accepted Answer · answered Dec 02 '18 at 20:37

Try this.

var wordSpecsArr = [{a: 2, b: 2},{a: 1, b: 1, c: 1, d: 1},{b: 2, a: 2},{d: 2, a: 2},{a: 2, b: 2}]


var wordSpecsArr = [{a: 2, b: 2},{a: 1, b: 1, c: 1, d: 1},{a: 2, b: 2},{a: 2, d: 2},{a: 2, b: 2}]

//sort keys
let op =[];
wordSpecsArr.forEach((obj) => {
    let ordered = {};
    Object.keys(obj).sort().forEach((key) => {
        ordered[key] = obj[key]
    });
   op.push(ordered)
});

console.log(op)

Sorting each object's key in an array of objects

1 Answers1