Why Lua 5.1 allows to define local variables more than once and not throws error?
local a = 1
local a = a or 2
print(a) -- will print "1"
function f(a)
-- we don't see it, but variable `a` is already defined in function's scope
-- and now we still can define local variable with same name `a`
local a = a or 4
print(a)
end
f(3) -- will print "3"
--
rafis
