Re: Once a newbie, always a newbie

[Egil Hjelmeland <privat@...>]

Den 2012-08-31 14:18, skrev Patrick Rapin:
> > Once a newbie, always a newbie
> Your code is certainly not a newbie's one. Metatables are a powerful
> concept for advanced users.
> And you use the inexistent __gt metamethod. An "advanced newbie" would
> have double checked in the documentation for the name of the
> metamethod.
> This error shows that you are so fluent in Lua language that you don't
> check your memory anymore.

A recent, more newbish gotcha of mine was something like:

-----
function Do(_a,_b)
 local a,b = _a,_b,
 print('Doing ', a , b)
 -- doing more stuff on a and b
end

Do('well', 'now')
-----

I was confused that the thing worked, but the log said 'Doing nil     nil'.
This was innocent, but it should not be difficult constuct more 
interesting effects by straying ',' behind assignments.

Egil