function advanceBubbleSort1(arr){
    let flag;
    for(let i = 1, len = arr.length; i <= len - 1; i++){
        flag = false; //每轮一开始都必须重新设置标志
        for(let j = 0; j < len - i; j++){
            if(arr[j] > arr[j + 1]){
                temp = arr[j];
                arr[j] = arr[j + 1];
                arr[j + 1] = temp;
                flag = true;
            }
        }
        if(flag === false){
            break;
        }
    }
    return arr;
}


function advanceBubbleSort2(arr){
    let k = 0;
    let n = arr.length;
    for(let i = 1, len = arr.length; i <= len - 1; i++){
        k = n;     //每一轮 都需重新设置到 上一轮冒泡结束的位置
        n = 0;      
        for(let j = 0; j < k - 1; j++){
            if(arr[j] > arr[j + 1]){
                temp = arr[j];
                arr[j] = arr[j + 1];
                arr[j + 1] = temp;
                n = j + 1;
            }
        }
    }
    return arr;
}

function bubbleSort(array, asc = true) {
  const result = Array.from(array);
  const count = array.length - 1;
  let border = count;
  let borderTemp = 0;
  for (let i = 0; i < count; i += 1) {
    let isSorted = true;
    for (let j = 0; j < border; j += 1) {
      if (asc ? (result[j] > result[j+1]) : (result[j] < result[j+1])) {
        [result[j], result[j+1]] = [result[j+1], result[j]];
        isSorted = false;
        borderTemp = j;
      }
      console.log(`第${i+1}次循环的第${j+1}次对比：`, result.toString());
    }
    if (isSorted) {
      break;
    }
    border = borderTemp;
  }
  return result;
}