print("Hello World")  --interpreted immediately
 
function dostuff() print("stuff"); end --basic function
 
fact = function(n)  --all functions are function pointers in the global namespace
    if n == 0 then
        return 1
    else
        return n * fact(n-1)
    end
end
print(fact(3))  --interpreted, so we can call whenever we want
 
a = {}     -- here's an object
a.memberfunction = function() print("stuff") end;  --now it has a member function
b = a -- objects are pointers/references like in java, these are two references to the same object
a[3] = "HI" -- objects/arrays/hashtables are one and the same
a["memberfunction"]() --calls the function
a.memberfunction() --also calls the function
print(a[3])
print(a[3].."WORLD") --concatenation is different than other languages, but simple
 
--c = a + b --error since objects/tables can't be added
metatable = {}
setmetatable(a, metatable ) --now a has a new metatable, used for operator overloading
metatable.__add = function(left, right) print("ADDITION") return left end --now we have an add operator
c = a + b --so now a can be added to things
print(a)
metatable.__tostring = function() return "A" end --now tostring will be more than the address
print(a)
 
 
 
 
 

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