Connections Question

[quiet lagoon]

Hi! I have a question regarding connections. When should I attatch a variable to a connection, and when should I disconnect a connection? If you can, try and provide examples, because it is hard for me to grasp when it's necessary or not. Thanks!

[sly cairn]

If you only want to temporarily listen (as example wehn a player joins) to something and need to disconnect it afterwards you want to store it in a variable, thats pretty much it. Questions?

@quiet lagoon

[real cloak]

You should only make a local connection variable if you need to disconnect it / stop it from running later, if you only need to run a connection once you can use :Once instead of :Connect

https://create.roblox.com/docs/reference/engine/datatypes/RBXScriptSignal#RBXScriptSignal:Once

[languid steppe]

You would come to that situation eventually

you'll know

but if you want to see an example from me I gotchu

[naive raft]

use connections when nesting connect: functions for example

local connection = nil

SWORD.Activated:Connect(function() --This is :Connect function
    --add animation and sound effects
    connection = HANDLE.touched:Connect(function(hit) --This is a NESTED :Connect function
        if hit.Parent:FindFirstChild("Humanoid") then
            hit.Parent.Humanoid:TakeDamage()
            connection:Disconnect()
        end
    end)
end)

the reason why - :Connect functions run constantly so when you run SWORD.activated it will run HANDLE.touched, but HANDLE.touched wont stop properly after the code is finished. meaning, If i put a "print("test")" inside HANDLE.touched... without disconnecting it then it will run:
test(x2)
then
test(x4)
then
test(x8)
it will double up every time you run SWORD.activated