#!/usr/bin/lua

-- Numbers:
a=3 -- a contains 3
b=a -- b contains 3
a=4 -- a contains 4, b still contains 3
print(a,b) -- 4  3

-- Booleans:
a=true; b=a; a=false
print(a,b) -- false  true

-- Strings:
a="World"  -- a points to the string "World"
b=a        -- b points to the same string
a="Hello"  -- a points to "World", b still points to "Hello"
print(a,b) --> Hello  World

-- Functions:
a= function() print("World") end
b=a
-- a and b point to the same function:
print(a,b) --> function: 0x80500e8  function: 0x80500e8
a= function() print("Hello") end
-- a points to a new function and b still points to the old function:
print(a,b) --> function: 0x8050a48  function: 0x80500e8
a() -- Hello
b() -- World