Re: Dereferencing an arrayref of arrayrefs

Thanks Monks. That was a lot of help and solved at least one part of the problem. However, I am still having some trouble with accessing only particular columns in the AoA. I want to do something like

 for ($i=0; $i<10; $i++)
{print $data[1][$i];
}
[download]

I know the syntax I've written here is not perfect. I've just kind of translated the logic into Perl to illustrate what I am getting at. So, can you tell me how do I go about doing this? Update: Ok never mind. I figured it out finally. Thanks for pointing out the relevant help docs. They helped!

Comment on Re: Dereferencing an arrayref of arrayrefs Download Code

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Re^2: Dereferencing an arrayref of arrayrefs by GrandFather (Saint) on Feb 01, 2010 at 01:18 UTC
That would be better written: `for my $index (0 .. 9) { print $data[1][$index]; }` [download] or if you want to print all the elements in the array reference you could: `for my $index (0 .. $#{$data[1]}) { print $data[1][$index]; }` [download] or better still: `for my $element (@{$data[1]}) { print $element; }` [download] and more succinctly as: `print $_ for @{$data[1]};` [download] and if you would like a space between elements you can: `print "@{$data[1]}";` [download] True laziness is hard work	[reply] [d/l] [select]

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Re^2: Dereferencing an arrayref of arrayrefs
by GrandFather (Saint) on Feb 01, 2010 at 01:18 UTC

That would be better written:

for my $index (0 .. 9) {
    print $data[1][$index];
}
[download]

or if you want to print all the elements in the array reference you could:

for my $index (0 .. $#{$data[1]}) {
    print $data[1][$index];
}
[download]

or better still:

for my $element (@{$data[1]}) {
    print $element;
}
[download]

and more succinctly as:

print $_ for @{$data[1]};
[download]

and if you would like a space between elements you can:

print "@{$data[1]}";
[download]

True laziness is hard work

[reply]
[d/l]
[select]