[Tutor] iterators -- oops!

[spir]

erratum:

On 01/18/2014 12:13 PM, spir wrote:
> [Note, just to compare: in Lua, this little magic making builtin sequences
> special does not exist. So, to iterate over all items or pairs of a Lua table,
> one would write explicitely, resp.:
>      for key,val in pairs(t)
>      for item in ipairs(t)
> where pairs & ipairs resp. create iterators for (key,val) pairs or indexed items
> of a table (used as python lists or dicts). Functions pairs & ipairs are
> builtin, but it's also trivial to make iterators (or generators) in Lua, since
> it has 'free' objects we don't even need classes for that.]

Read instead:

       for _, item in ipairs(t)
       for idx, item in ipairs(t)

Lua's builtin 'ipairs' returns both index and item.
[Never post a piece of code you have not run ;-)]

Denis