Create a numerical table from the values of a non numerical table

Question

Backpack = {Potion = 'backpack',Stack = 'bag',Loot = 'derp', Gold = 'random'}

Backpack[1] ~= 'backpack' -- nope

As you guys can see, I cannot call Backpack[1] since its not a numeral table, how would I generate a table after the construction of Backpack, consisting only of it's values? for example:

Table_to_be_Constructed = {Value of Potion,Value of Stack,Value of Loot,Value of Gold} -- this is what i need

It seems simple but I couldn't find a way to do it.

I need it this way because i will run a numeric loop on Table_to_be_Constructed[i]

Answer 1

To iterate over all the key-value pairs in a table, use the pairs function:

local Table_to_be_Constructed = {}
for key, value in pairs(Backpack) do
    table.insert(Table_to_be_Constructed, value)
end

Note: the iteration order is not defined. So, you might want to sort Table_to_be_Constructed afterwards.

By convention, the variable name _ is used to indicate a variable who's value won't be used. So, since you want only the values in the tables, you might write the loop this way instead:

for _, value in pairs(Backpack) do

---

For the updated question

Backpack has no order (The order in the constructor statement is not preserved.) If you want to add an order to its values when constructing Table_to_be_Constructed, you can do it directly like this:

local Table_to_be_Constructed = {
    Backpack.Potion, 
    Backpack.Stack, 
    Backpack.Loot, 
    Backpack.Gold
}

Or indirectly like this:

local items = { 'Potion', 'Stack', 'Loot', 'Gold' }
local Table_to_be_Constructed = {}
for i=1, #items do
    Table_to_be_Constructed[i] = Backpack[items[i]]    
end