array conversion in javascript

Question

I am new to JavaScript.

I have the following 1-d arrays:

    m=[1,2,3,4]
    n=[5,6,7,8]

I want to convert the following in JavaScript:

    x=[[1,5], [2,6], [3,7], [4,8]]

How can I do this?

Thanks for your help in advance.

I am new to java-script

So loop over one and build up a new array referencing the second. — epascarello, Jul 08 '19 at 16:16
Welcome to StackOverflow! I appreciate that you're new, but the requirement here is that you show your work. You have to actually try to solve what you're doing instead of simply asking. — zfrisch, Jul 08 '19 at 16:17
Hello and welcome to SO; to avoid downvotes in the future please read the following guide [mre] — Hasan Patel, Jul 08 '19 at 16:18
You can just run a loop and create another array with values at index from first and seconds array. `const m = [1, 2, 3, 4];` `const n = [5, 6, 7, 8];` `let reultArray = [];` `for (var i = 0; i < m.length && i < n.length; i++)` `reultArray[i] = [m[i], n[i]];` `console.log(reultArray);` — nircraft, Jul 08 '19 at 16:33

Get Off My Lawn · Answer 1 · 2019-07-08T16:30:05.257

1

Use a map to create a new array where the callback takes the item being processed as param 1, and its index as param 2.

const m = [1, 2, 3, 4]
const n = [5, 6, 7, 8]


const o = [...m].map((itm, idx) => [itm, n[idx]])

console.log(o)

edited Jul 08 '19 at 16:30

answered Jul 08 '19 at 16:18

Get Off My Lawn

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score 0 · Answer 2 · edited Jul 08 '19 at 17:51

0

function multiDimension(m, n) {
  var x = [];

  m.forEach(function(v, k) {
    x.push([m[k],n[k]]);
  });

  return x;
}

multiDimension([1, 2, 3, 4], [5, 6, 7, 8]);

edited Jul 08 '19 at 17:51

Mohammad Usman

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answered Jul 08 '19 at 16:33

Mehul Patel

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array conversion in javascript

2 Answers2