Rob Dixon wrote:
>
> "Michael Kelly" <[EMAIL PROTECTED]> wrote in message
> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
>
> > # print out all the captured numbers
> > map{ print "$_\n"; } @numbers;
>
> Hi Michael.
>
> May I warn against using 'map' in a void context like this? It'll work,
> sure, but you're using it for the side-effect of evaluating the 'print'
> expression. map's purpose is to 'translate' one list into another, and here
> it is faithfully producing a list of (presumably) 'true' values to indicate
> print's success in outputting each array element. This list occupies memory,
> may be huge, and just gets discarded. Better to use 'foreach' like this:
>
> print "$_\n" foreach @numbers;
Or just print the list that map produces.
print map { "$_\n" } @numbers;
John
--
use Perl;
program
fulfillment
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