CODEWITHSUNDEEP
lualua-table
James
James

Reputation: 771

Initialising and using a global table

I'm very new to Lua and I'm trying to globally initialise a table at the very start of my program. At the top, I have:

storage = {}

Then, I want to iterate over elements in this table inside functions in the same file. One example is:

local output
for item in storage do
    output = output .. item
end
return output

In this case, I get:

attempt to call a nil value

On the line beginning with for.

I have also tried printing out storage[1]. In this case I get:

attempt to index local 'storage' (a nil value)

Could someone please explain in simple terms what could be wrong here?

Upvotes: 1

Views: 106

Answers (1)

Paul Kulchenko
Paul Kulchenko

Reputation: 26754

You are not showing the entire script, but it's clear that storage value gets reset somewhere between your initialization and using in for item in storage do, because if it keeps the value, you'd get a different error: attempt to call a table value.

You need to use ipairs or pairs function in the loop -- for key, item in pairs(storage) do -- but you first need to fix whatever resets the value of storage.

Upvotes: 1

Related Questions