bubbleSort.js

function bubbleSort(arr) {
  let temp;
  let flag;

  for (let i = 0; i < arr.length; ++i) {
    flag = false;

    for (let j = 1; j < arr.length; ++j) {
      if (arr[j] < arr[j - 1]) {
        temp = arr[j];
        arr[j] = arr[j - 1];
        arr[j - 1] = temp;
        flag = true;
      }
    }

    if (!flag) break;
  }

  return arr;
}

module.exports = bubbleSort;