1function sort() {
2        var ary = [2, 1, 0.4, 2, 0.4, 0.2, 1.5, 1, 1.1, 1.3, 1.2, 0.2, 0.4, 0.9];
3        return ary.sort(function(a, b) {
4          console.log(a,b,'rererererer')
5          return a - b;
6        });
7}
8    
9alert(sort());