How to select a random friend on Steam-User

[Nacho]

I'd like to know how to do that, or at least to have the friends list to select one randomly. Thanks!

[Dr. McKay]

You can get your friends list from the myFriends property, by enumerating the object and pulling SteamIDs which have a friend relationship of Friend, example:

Object.keys(user.myFriends).forEach(function(steamid) {
    if (user.myFriends[steamid] == SteamUser.EFriendRelationship.Friend) {
        // this guy is a friend
    }
});

You can pretty easily push those SteamIDs into an array and then pull a random value from the array.