✓ ANSWER ACCEPTED

attempt to get length of local 'v' (a userdata value)?

Asked Apr 28, 20192,737 views2 answers

Im trying to make admin commands that uses shortcuts to find player but its giving error whenever I try to execute command. Heres script:

function findPlayer(victim)
for i,v in pairs(game.Players:GetChildren()) do
if #victim < 3 then
print("Need more characters than 3 to find player.")
else
local lowname = v.Name:lower()
if lowname:sub(1,#victim) == victim then
if #v > 1 then
print("Enter more characters to find one player.")
else
return v.Name
end
else
print("Could not find existing player.")
end
end
end
end

AnonymousApr 28, 2019

2 answers

✓ Accepted answer

Whats wrong?

Well it's in the error. "Attempt to get length of a local v, a userdata value." You're trying to get the length # of variable "v" but its a userdata and has no __len metamethod set. http://lua-users.org/wiki/MetatableEvents

If we look through the code its right here where v is being defined. for i,v in pairs(game.Players:GetChildren()) do In this case the value of v is reference to a player.

The error occurs here if #v > 1 then for the reason that I described above.

Note

Roblox uses a datatype called "userdatas" for their instances. More information linked here. https://www.lua.org/pil/28.1.html

Solution

Use the name of v and then compare the length of that to 1 with your condition.

if #v.Name > 1 then
    --// code
end

AnonymousApr 28, 2019Edited Apr 28, 2019Permalink

6 comments

Im trying to get player count not name's long

AnonymousApr 28, 2019#

#player:GetPlayers() will return the number of players ingame

AnonymousApr 29, 2019#

I want to get v's count

AnonymousApr 29, 2019#

He literally answered your question.

AnonymousApr 30, 2019#

nope

AnonymousApr 30, 2019#

bruh

AnonymousMay 2, 2019#

Im trying to get player count not player's name length.

AnonymousApr 28, 2019Permalink

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