Extract numbers from a n-dimensional array in javascript

Question

Input array: [1, 2, [3, 4, [5, 6, [7, 8, [9]]]], 10]
Output array: [1,2,3,4,5,6,7,8, 9, 10]

Is there a way to get the output array without using multiple loops?

Tips: [flat()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/flat) — Simone Rossaini, Sep 21 '22 at 09:58
Does this answer your question? [Extracting common numbers from multi-dimensional array](https://stackoverflow.com/questions/73061492/extracting-common-numbers-from-multi-dimensional-array) — Nazeer Shaik, Sep 21 '22 at 10:01
@NazeerShaik I do not see any relevance that question has to this one — VLAZ, Sep 21 '22 at 10:02
If your JS has no Array flat method, `const flat=v=>(!Array.isArray(v))?v:v.reduce((a,v)=>a.concat(flat(v)), []);` — Jaromanda X, Sep 21 '22 at 10:06

score 7 · Accepted Answer · answered Sep 21 '22 at 10:00

7

You can add an infinity argument to flat to get all the numbers from the many nested arrays.

const data = [1, 2, [3, 4, [5, 6, [7, 8, [9]]]], 10];
const out = data.flat(Infinity);
console.log(out);

answered Sep 21 '22 at 10:00

Andy

score 1 · Answer 2 · edited Sep 21 '22 at 10:32

1

console.log([1, 2, [3, 4, [5, 6, [7, 8, [9]]]], 10].flat(Infinity));

Use 'flat' method to flatten the array. Or you can also use underscore module method.

edited Sep 21 '22 at 10:32

VLAZ

answered Sep 21 '22 at 10:04

KITISH

2 Answers2