Question

I’m doing a small script to add functionality to the facebook find friends page: basically order the suggested friends by mutual friends.

The code can be found here: http://pastebin.com/x6Ss326A

I’ve tested the script modularly, so I know the paths, sorting function are ok. I’ve used the same technique to sort items in a odered list with simple text, successfully. The problem is in the behaviour of the sorting method, but I cant figure out what’s wrong.

Any suggestions?

Answer 1

The compare function used by sort has to return either a negative number, zero or a positive number, depending on how the arguments should be sorted – not just true or false. See the MDN entry on sort for reference.

The simplest fix for your problem would be to change the return statement of your sortFriend function to

return friendsOfB - friendsOfA;