another question about variables

Hello, I was wondering if there was a way that I could copy information from one variable over to another

local var1 = 1
print( var1 ) -- prints 1
local var2 = var1
print( var2 ) -- prints 1
var1 = var1 + 1
print( var1 ) -- prints 2
print( var2 ) -- prints 1

However beware, some variables (such as tables) are a reference to where the variable is store in memory, meaning when you use = you are just copying the reference, not the actual value you want.

EDIT: So doing this with a table doesn't work

local var1 = { 1 }
print( var1[1] ) -- prints 1
local var2 = var1
print( var2[1] ) -- prints 1
var1[1] = var1[1] + 1
print( var1[1] ) -- prints 2
print( var2[1] ) -- prints 2

you would need to do the following

local function copyTable( table )
  local t = {}
  for k, v in pairs( table ) do
	t[k] = v
  end
  return t
end

local var1 = { 1 }
print( var1[1] ) -- prints 1
local var2 = copyTable( var1 )
print( var2[1] ) -- prints 1
var1[1] = var1[1] + 1
print( var1[1] ) -- prints 2
print( var2[1] ) -- prints 2