Re: Deleting all elements from a table

["Aaron Brown" <arundelo@...>]

Nick Gammon wrote:

> I want to delete all elements from a table (any sort of
> keys, not just numeric).

> Is this OK?
>
> t = { a = 1, b = 2, c = 3, 4 = 4}
>
> for k in pairs (t) do
>   t [k] = nil
> end -- for

Yes.

> It *seems* to work however I seem to recall that you
> aren't supposed  to change keys during a table traversal

> From the manual:

# The behavior of next is undefined if, during the
# traversal, you assign any value to a non-existent field in
# the table.  You may however modify existing fields.  In
# particular, you may clear existing fields.

--
Aaron