var arr = [3, 2, 4, 9, 1, 5, 7, 6, 8];
function bubbleSort(arr){ var i = arr.length, j; var tempExchangVal; while ( i > 0){ for(j = 0; j<i-1;j++){ if(arr[j]<arr[j+1]){ tempExchangVal = arr[j]; arr[j] = arr[j+1]; arr[j+1] = tempExchangVal; } } i--; } return arr; } var arrSorted = bubbleSort(arr); console.log(arrSorted);