How to turn json to array without using key

Question

I have this array of objects

[{
    "A": "thisA",
    "B": "thisB",
    "C": "thisC"
}, {
    "A": "thatA",
    "B": "thatB",
    "C": "thatC"
}]

I'm trying to get this format as an end result: [["thisA","thisB","thisC"], ["thatA","thisB","thatC"]]

I know we can use map() function with the specific key(A, B, C).

newarray = array.map(d => [d['A'], d['B'], d['C']])

But I need a common function to transfer it without using the key, because the content of array will be different, the key will be different. Is there any good solution?

Possible duplicate of [How to convert JSON to Array in Javascript](https://stackoverflow.com/questions/45930723/how-to-convert-json-to-array-in-javascript) — Nikola Lukic, Dec 21 '18 at 08:33

score 6 · Accepted Answer · edited Dec 21 '18 at 08:33

6

const arr = [{
  "A": "thisA",
  "B": "thisB",
  "C": "thisC"
}, {
  "A": "thatA",
  "B": "thatB",
  "C": "thatC"
}]

const result = arr.map(Object.values)

console.log(result);

edited Dec 21 '18 at 08:33

adiga

31,610
8
53
74

answered Dec 21 '18 at 08:23

punksta

2,588
2
22
41

amazing, I really do not know there is a such method. great thx! – Ian Dec 21 '18 at 08:32
1

you may find `Object.keys` and `Object.entries` interesting too. @lan – punksta Dec 21 '18 at 09:33

Nurbol Alpysbayev · Answer 2 · 2018-12-21T08:34:17.490

0

I've upvoted punksta for elegant solution, but this is how I would do that in automatic mode (without thinking how to make it elegant):

const src = [{
    "A": "thisA",
    "B": "thisB",
    "C": "thisC"
}, {
    "A": "thatA",
    "B": "thatB",
    "C": "thatC"
}]

const result = src.map(o => Object.keys(o).map(k => o[k]))

console.log(result)

edited Dec 21 '18 at 08:34

answered Dec 21 '18 at 08:30

Nurbol Alpysbayev

16,001
2
41
68

I wouldn't say the other answer is _to make it elegant_, I'll say _efficient_, and even more readable than this. – Asons Dec 21 '18 at 08:39
@LGSon You are not wrong. I added my answer just because I wanted to. Because of reasons. And for comparison also, maybe. – Nurbol Alpysbayev Dec 21 '18 at 08:40

How to turn json to array without using key

2 Answers2