Passing tables through bindable events

Help and Feedback Scripting Support
#1

Hey everyone. I’m trying to pass a table through a bindable event, but when doing so, the script receiving the table actually receives a copy of the original table, not the table itself:
ohno

Is there a way I can use a single table in multiple scripts, so that a key change made in one script replicates to others? Thanks.

2 Likes
Do bindables send the actual reference to a table, or just a "deep copy"?
Problems w/ Static Module Event
#2

You can use a ModuleScript that stores the table, and whenever a script requires the module, it will receive the same table:

local t = {}

return t
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#3

That’s an interesting idea, but I’m not sure if that would work for what I’m doing. I created an object-generating modulescript that uses metatables to create a new object table when necessary, and I need to be able to use these new object tables between scripts. I could maybe create a new module script on the fly for each new object instance and set its source to the new object instance but that seems kinda dirty.

#4

Oh, maybe I could use _G. I’ll try that.

#5

If you are using an OO approach, you can still use ModuleScripts to do the job, you would just have to store the objects somewhere, like in the original module:

local module = {
    Storage = {},
    Methods = {}
}

module.Methods.__index = module.Methods

function module.new(key)
    local object = setmetatable({
        -- attributes here
    },module.Methods)
    local key = key or {}
    module.Storage[key] = object
    return object, key
end

function module.get(key)
    return module.Storage[key]
end

return module

_G works too, it just may not be as clean I guess…

6 Likes
Does passing a table through a Bindable Event create a reference or a whole new table?
Problems w/ Static Module Event
#6

Oh okay, that makes sense, thanks.

1 Like
#7

I just tried this and I was able to pass a table through. Encode it with JSON before you send it, decode afterwards.

local HS = game:GetService(“HttpService”)
local list = {“hi”,“bananas”,“fred”}
list = HS:JSONEncode(list)

game.ReplicatedStorage.Eventt.Event:Connect(function(listtt)
print(listtt)
print(HS:JSONDecode(listtt))
end)

2 Likes
#8

Just tried that, but it doesn’t send the exact same copy/instance of the table. Here’s the code I used:

local http = game:GetService("HttpService")
game.ReplicatedStorage.Event.Event:Connect(function(Table)
    	print("Encoded table received: ")
    	print(Table)
    	Table = http:JSONDecode(Table)
    	print("Decoded table received: ")
    	print(Table)
    end)

    local TableToPass = {}
    wait(1)
    print("Table sending: ")
    print(TableToPass)
    print("Encoded table sending: ")
    local encodedTable = http:JSONEncode(TableToPass)
    print(encodedTable)

    game.ReplicatedStorage.Event:Fire(encodedTable)

Output:
ohno2

Thanks for the help though

1 Like
#9

Must be because it’s a table full of Objects instead of just regular values I guess. Oh well, modules would probably be your best bet then.

1 Like