How can I create an array from each number in an array?

Question

I have an integer and want to create an array from each of its numbers.

let interget = 345;
//I want create the array [3,4,5]

Is there any easy way to do this using Array.from() or would I need to convert the number to a string first?

Try this interget .toString().split('').map(e => parseInt(e)) — Mridul
– Mridul, Commented May 25, 2020 at 4:39
Does this answer your question? How to convert an integer into an array of digits — visibleman
– visibleman, Commented May 25, 2020 at 4:42
@visibleman Yes. I was forgetting to add the word digit to my google search. Thanks for the help — Ian Halstead
– Ian Halstead, Commented May 25, 2020 at 4:43

ashish singh · Accepted Answer · 2020-05-25 04:39:02Z

2

easy way by converting to string

(inputNumber + "").split("").map(char => +char)

basically we split string and convert each character back to number

doing it manually

function getDigits(n) {
  const ans = [];
  while(n > 0){
    let digit = n % 10;
    ans.push(digit);
    n -= digit;
    n /= 10;
  }

  return ans.reverse();
}

answered May 25, 2020 at 4:39

ashish singh

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Rajneesh · Accepted Answer · 2020-05-25 06:05:34Z

2

Or you can do it like this:

var result = Array.from('345', Number)
console.log(result);

answered May 25, 2020 at 6:05

Rajneesh

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