comment on

The map trap. Run this:

#!/usr/bin/perl

use strict;
use warnings;
use Data::Dumper;

my %oops=(
    A => 1,
    map { $_ => 2 } ('B','C'),
    map { $_ => 3 } ('D','E'),
    F => 4,
);

print Dumper(\%oops);
[download]

Look at the output. Then add ( ) around each map expression:

#!/usr/bin/perl

use strict;
use warnings;
use Data::Dumper;

my %oops=(
    A => 1,
    (map { $_ => 2 } ('B','C')),
    (map { $_ => 3 } ('D','E')),
    F => 4,
);

print Dumper(\%oops);
[download]

Alexander

--
Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)

In reply to Re: Using Number Ranges in a Dispatch Table by afoken
in thread Using Number Ranges in a Dispatch Table by planetscape

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