How to make a global variable, and acess it from another script?

[djmix224]

So I’m making a local script(inside StarterPlayerScripts) that needs to access a variable that is in a script in the workspace. I wanted to know how I could possibly do it since I’m new to scripting.

I’ve heard about _G variables but when I tried it, it didn’t work. I also read that Modules Scripts can be a good solution to access variables between scripts. But I have no idea how to do it. So I’d like to get some advices from more experienced scripters if possible. Thanks for helping

[Rare_tendo]

You could simply use RemoteEvents for this:

Client code:

local RE = game.ReplicatedStorage.RemoteEvent

local function Input(input, gpe)
    if IsKeyDown() then
      CoreOn = false
      RE:FireServer(CoreOn)
   end
end

UserInputService.InputBegan:Connect(Input)

Server code (above while loop):

game.ReplicatedStorage.RemoteEvent.OnServerEvent:Connect(function(player, val)
    CoreOn = val
end)

You probably can’t use ModuleScripts because module scripts can only be called once per script and they cache results. _G can only share variables among scripts with the same context (basically scripts of the same type, LocalScript or Script) and using _G is a bad practice

[Jaycbee05 (Jaycbee)]

Edit: Didn’t realize you were talking about sending information through the server and to the client in that case you might want to read more on this: Client-Server Runtime | Documentation - Roblox Creator Hub and this: Custom Events and Callbacks | Documentation - Roblox Creator Hub

Module scripts are definitely a great option, they are really powerful. _G variables are powerful aswell but they can be seen as a bad practice sometimes depending on what you are using it for (you can read more about that here: Sharing variables between scripts? and What is _G and for what i can use it? ). Module scripts are scripts that when you require them it sends back a table of all the things inside the script. So for example:

local module = {
["Varible1"] = 5,
}


return module

in the module script above a table containing Varible1 is returned, but module scripts can be used to return any magnitude of things, some of the most common are functions

local module = {}

function module.Test()
  print(10)
end


return module

in this case a function is returned that we can now call from any where we require it from!

This might help you get some more insight on stuff i mentioned:

Why Module Scripts?

This is less of a problem then a persevere for efficiency and learning further knowledge. I have been a coder for about a year now and I always was perplexed about Module Scripts I know how they worked but I never could understand why they are so common for developers to use. First, I use Remote Events to fire universal code. And if I didn’t I’d use _G. So why is it so necessary to have for a good game?! Mabye it’s my definition of a Module Script. Isn’t a Module Script a script that can be r…

[djmix224]

I’ll try it. Thanks for the help though

[djmix224]

Just tried it out, works absolutely like I wanted to, thanks for the help seriously, I guess I also learned something new then. Have a nice day