"Jeff Westman" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> Hi,
>
> In my limited experience with perl, I've never had to use the 'amp'
command,
> even though I see it used all the time. It seems to just be a short-cut
of
> other commands/keywords that I've used.
>
> So, when do you HAVE to use 'map', when no other option makes sense?!
>
>
Its a shortcut, so you never _have_ to use it. There was a post not too long
ago and I used map() in one of the examples.
Reverse an array without using reverse():
with an array slice and map():
[EMAIL PROTECTED] trwww]$ perl
@array = ( 1 .. 5 );
@array = @array[ map abs(), -$#array .. 0 ];
print( join("\n", @array), "\n" );
Ctrl-D
5
4
3
2
1
see
http://groups.google.com/groups?threadm=20030827112457.74911.qmail%40onion.perl.org
Todd W.
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