Best way to order values in size?

The best, most efficient way to do this would be using the table.sort function.

So, you have a table full of numbers and you want to sort them from least to greatest?

local values = {5,3,7,2,1,8}

table.sort(values) --Sort them

print(table.concat(values," ")) --Print the whole table, with a space between each index.

This code would print; 1 2 3 5 7 8

--EDIT--

table.concat is a method that takes 2 arguments. The first argument should be the table, and the the second should be the intersection between each index of the table.

Example;

local tab = {"I","Really","Like","Roblox"}
local sentence = table.concat(tab," ")
--[[First argument is the table, 'tab'. The second is what goes in between each index, " ", or a space.]]
print(sentence) --> I Really Like Roblox

--[[Alternatively, if I were to make the second argument ", " then it would put a comma in between each index.]]

local sentence = table.concat(tab,", ")
print(sentence) --> I, Really, Like, Roblox

More info about table.concat here.

Also, you can use the unpack function.