Question about _G. functions

Help and Feedback Scripting Support
#1

If a player on client side calls a _G. function, for example, _G.CanUse(), is the player that called it automatically sent as the 1st parameter in the function, like remote events?

1 Like
#2

Yes It’s the same like remote events :sunglasses:

#3

Its like the same yes ! That better for reduce exploiter for exemple

#4

I have a server script that has:

function _G.Test(p1, p2)
	print(p1)
	print("p1 done now p2")
	print(p2)
end

and a client script that has:


local UIS = game:GetService("UserInputService")
UIS.InputBegan:Connect(function(Key, GPE)
	if not GPE then
		if Key.KeyCode == Enum.KeyCode.E then
			_G.Test()
		end
	end
end)

But when I press E i get this error:

image

why?

#5

Global namespace variables and functions (_G) are not shared between client and server. For this to work you will need remote functions/events.

2 Likes
#6

Please can you show an example

#7

Let’s say you want this _G variable to be transferred to the client, or be in both, do the following.

Insert a remoteevent and…

_G.func = function() end -- ur function
remoteevent:FireClient(plr,_G.func)

Above is server.

remoteevent.OnClientEvent:Connect(function(g)
_G.urfuncname = g
end)
--client.

Hope this helped.

1 Like
#8

They should not be used much. They can be buggy often, and as of this I almost never use it.

Use ModuleScripts, RemoteEvents, and BindableEvents instead.

2 Likes
#9

You can’t send functions over the network.

@Cia_Kaze
@Hypocrisism

Don’t spread misinformation. _G is nowhere near remote events, and it does not reduce exploiters(?).

#10

You need to explicitly pass the player instance over like you would with any regular function.

I’m not sure why the first two replies stated otherwise.

Here’s a very trivial example:

function _G.getNameFromPlayer(...)
	local arguments = {...}
	return arguments[1].Name
end

local players = game:GetService("Players")
local player = players.LocalPlayer
local playerName = _G.getNameFromPlayer(player)
print(playerName)
#11

You can’t pass function values across the client-server boundary but you can do something similar to the following.

--LOCAL

local replicated = game:GetService("ReplicatedStorage")
local remote = replicated:WaitForChild("RemoteEvent")

remote:FireServer()

--SERVER

local replicated = game:GetService("ReplicatedStorage")
local remote = replicated.RemoteEvent

function _G.printFirstArg(...)
	local args = {...}
	print(args[1])
end

remote.OnServerEvent:Connect(_G.printFirstArg)