js排序冒泡案例

var a=[21,42,543,43,5,64,75,8,93,];

    for (vari=0;i<=a.length-1;i++) {

        for(var j = 0; j < a.length-i-1; j++) {

           if (a[j] > a[j + 1]) {

               var t = a[j];

               a[j] = a[j + 1];

               a[j + 1] = t;

            }

        }

       alert(a.toString());

    }