Using a ModuleScript to contain data

local toys = {}  = {
	['Teddy Bear'] = {
		['Level'] = 1,
		['Wool'] = 2 

return toys

Seperate script:


it prints a table and the nil.

I want it to print ‘Teddy Bear’ and ‘1’ (1 being the level)

I’m unsure of how to get the Level and Wool variables from within the module. Any advice would be helpful.

Printing a table prints the memory address, so you have to come up with your own way of printing it.
And data[1] is nil since you don’t set it.

local toyData =[someToy.Name]

-- I won't assume all toys exist, but they might
if toyData then
	print(someToy.Name, toyData.Level)

If you want it to work the exact way you did it, you’d have to use metatables.

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And howd I do that?

Well actually, printing level/wool could be done simply with:

{"Level", "Wool"} -- (instead of setting them as keys)

Since you want to access them like an array, that’s the solution (if no gaps).
You 100% have to use metatables for table->string though (if you make no edits to the structure).

If you are using this as a more of way to share object information within your game I would not return the table as it would then allow other scripts to change the table accidentally.

Instead I would include accessor methods for obtaining data in this list.

local toys = {}

-- jus an example of how you can populate a table with less time messing around with formatting it
local function newDataItem(name, level, itmType, itmTypeVal)
      if toys [name] then error("Duplicate name found") end

     toys[name] = {Level = level, [itmType] = itmTypeVal}

newDataItem("Teddy Bear", 1, "Wool", 2) -- ect

local f = {}

function f:HasToy(name)
      return toys[name] ~= nil

function f:GetToyInfo(name)
         if f:HasToy(name) then
               return toys[name] -- a clone should be made of this table

return f -- return function table


local module = require([module path])

print(module:HasToy("Teddy Bear"))

local toyData = module:GetToyInfo("Teddy Bear")
print(toyData.Level, toyData.Wool)

An easier way to read the data in the table could be this:

local toys = {} = {
	['Teddy Bear'] = {
		level = 1,
		wool = 2

print(['Teddy Bear'].level)

Access the wool the same way;['Teddy Bear'].wool

In the ‘Teddy Bear’ table, there is no value assigned to the key 1. When you use [], you are assigning the key, so if you wanted to get the value related to level, you do table.Level (or table['Level]', they do the same thing).

In this situation I think you just the ordered of the values back to front – if anything, you should be doing [1] = 'Level'. If you want to be able to find them by that index number, you’ll need to make the Teddy Bear table an array, like this: {"Level", "Wool"}
This is easy to write and works well.

1 Like

If you want it to print “Teddy Bear” you’ll want to have something like this with the Level and Wool

['Name'] = "Teddy Bear"

Then you can do

print(['Teddy Bear'].Name,['Teddy Bear'].Level)

Which will print the name and level.