How to get the size of an array in LUA? [duplicate]

Question

Here is a code:

users = {}  
users["aaa"] = "bbbb";
users["bbb"] = "bbbb";
users["ccc"] = "bbbb";
print("Users count ", table.getn(users));

Why table.getn(users) always returns 0? BTW, #users returns 0 too. So, am I doing something wrong and there is another way to get the amount of elements in the array?

Answer 1

table.maxn and # look for numeric indices; they won't see your string indices.

As for getting the number of elements in an array with arbitrary indices, I'd probably walk the array using something like:

Count = 0
for Index, Value in pairs( Victim ) do
  Count = Count + 1
end

but I'm an idiot.