DAY40：Are they the "same"?

題目連結：

https://www.codewars.com/kata/550498447451fbbd7600041c/train/javascript

解法：

function comp(a, b) {
  if (a === null || b === null) {
    return false;
  }

  if (a.length !== b.length) {
    return false;
  }

  const sortedA = a.slice().sort((x, y) => x - y);
  const sortedB = b.slice().sort((x, y) => x - y);

  for (let i = 0; i < sortedA.length; i++) {
    if (sortedB[i] !== sortedA[i] ** 2) {
      return false;
    }
  }

  return true;
}

筆記：