2D Javascript数组排序

Question

Haven't done as much of Javascript as I should have done. I am trying to do some tweaks in chat made of Javascript. This particular issue is related with user list representation.

I have got an array nickidlst which consists of users' id. 0=>"xxx", 1=>"yyy", 2=>"zzz"

for (var i=0; i<nickidlst.length; i++)
    {
      var nickid = nickidlst[i];
      var li = this.buildNickItem(nickid);
      li.setAttribute(className, 'nickitem_'+nickid);
      ul.appendChild(li);
    }

Every user has points, which can be accessed by this.getUserMeta(nickid, "points");

I would like to make user ordering and listing by points in DESC order.

The idea was to make iteration to add 'points' of specific user to nickidlst array, sort it by 'points' column and the rest code stays the same.

EDIT: It seems really easy issue. I guess I had to do more search before posting. Thank you everyone.

Answer 1

nickidlst.sort( function(a,b){
   // descending
   return this.getUserMeta(b, 'points') - this.getUserMeta(a, 'points');
});

sort documentation