Bubble Sort in JavaScript

gistfile1.txt

const swap = (arr, index1, index2) => {
  [arr[index1], arr[index2]] = [arr[index2], arr[index1]];
};

const bubbleSort = (arr) => {
  const len = arr.length;

  for (let i = 0; i < len; i++) {
    for (let j = 0, k = len - 1 - i; j < k; j++) {
      if (arr[j] > arr[j + 1]) {
        swap(arr, j, j + 1);
      }
    }
  }

  return arr;
};

Or with no swap function...

const bubbleSort = (arr) => {
  const len = arr.length;

  for (let i = 0; i < len; i++) {
    for (let j = 0, k = len - 1 - i; j < k; j++) {
      if (arr[j] > arr[j + 1]) {
        [arr[j], arr[j + 1]] = [arr[j + 1], arr[j]];
      }
    }
  }

  return arr;
};