Re: array and hash

Probably an array of arrays is what you want. A-like so:


my @array = get_items(); # whatever. the input.

my @results; # each element is a pair: [ input, output ]

for my $item ( @array )
{
    my $output = some_function($item);
    push @results, [ $item, $output ];
}

# now print:

for ( @results )
{
    my( $input, $output ) = @$_;
    print "Input: $input.  Output: $output\n";
}
[download]

Something along those lines.

Comment on Re: array and hash Download Code

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Re^2: array and hash by jdporter (Paladin) on Jun 09, 2005 at 20:44 UTC
Of course, there are tons of different ways to do something like this. You could store the results in a hash rather than array, if inputs are all unique strings: `my %results; for ( @array ) { $results{$_} = some_func($_); }` [download] You could make the results array contain hash-based records instead of array-based: `my @results; for ( @array ) { push @results, { input => $_, output => some_func($_) }; }` [download] Etc. There's also shortcuts for the loop: `my %results = map { ( $_ => some_func($_) ) } @array;` [download] `my @results = map { { input => $_, output => some_func($_) } } @array;` [download] Etc.	[reply] [d/l] [select]
Re^2: array and hash by Anonymous Monk on Jun 09, 2005 at 23:59 UTC
Hello all, Thank you for all the fast suggestions u gave. I will implement every one of your suggestions.	[reply]