Re: LuaJIT & iterator sequences (a question for Mike Pall)
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- Subject: Re: LuaJIT & iterator sequences (a question for Mike Pall)
- From: steve donovan <steve.j.donovan@...>
- Date: Sun, 3 Jan 2010 19:27:39 +0200
On Sun, Jan 3, 2010 at 6:59 PM, Mark Hamburg <mark@grubmah.com> wrote:
> I do, however, think examples like:
>
> iseq(io.lines(arg[1])) (take,10) (foreach, print)
>
> Are probably clearer than:
Yes, mostly this idiom is for working on iterators, rather than
tables, and many of those iterators will represent input from a file
or a socket, etc. Such data is potentially unbounded, multi-valued
and not fully accessible at any given instant, so is more general than
the table/array concept.
The performance of using iterator chains with such data would probably
be dominated by i/o.
steve d.
PS. I do still believe in for-loops. But life could be clearer without
so many of them.