Sum of Odd Cubed Numbers

[RazvanBugoi]

https://www.codewars.com/kata/580dda86c40fa6c45f00028a/train/javascript

[RazvanBugoi]

function cubeOdd(arr) {
  let odd = [];
  let cubed = arr.map((el) => Math.pow(el, 3));
  if (arr.filter((element) => typeof(element) == 'number').length == arr.length) {
    for (let i=0; i<cubed.length; i++) {
      if (cubed[i] % 2 != 0) odd.push(cubed[i]);
    }
    return odd.reduce((a,b) => a+b, 0);
  } else {
      return undefined;
    }
}