javascript-冒泡排序

var arr = [3, 7, 2, 4, 99, 54, 78, 33, 88];
function bubbleSort(arr) {
    for (var i = 0; i < arr.length; i++) {
        for (var j = i + 1; j < arr.length; j++) {
            if (arr[i] > arr[j]) {
                var temp = arr[i];
                arr[i] = arr[j];
                arr[j] = temp;
            }
        }
        console.log("第" + i + "次排序后:" + arr);
    }
    return arr;
}
bubbleSort(arr);