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Marinho Brandao wrote:
> dir() - that shows all attributes and methods that an object has

function dir(object)
  for k,v in pairs(object) do
    print(k, v)

> help() - that shows the documenatation about builtin functions and modules

There isn't any builtin help in Lua, but this link: worth bookmarking.

> str() - that converts everything to string

tostring(). Most Lua objects do *not* autoconvert to strings. However,
most pure-Lua complex objects will just render as 'table: 0xdecafbad'
unless they have specific support for rendering themselves more
usefully. C-based complex objects usually produce some description of
themselves, though.

┌─── ───── ─────
│ "I have always wished for my computer to be as easy to use as my
│ telephone; my wish has come true because I can no longer figure out
│ how to use my telephone." --- Bjarne Stroustrup

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