Re: element of an array of arrays

You don't actually have an array of arrays:

use Data::Printer;
p @Records;
p @RecCheck;
[download]

[
    [0] "AAA,20130610,730,1015,
",
    [1] "BBB,20130610,1015,1200,
",
    [2] "CCC,20130610,1230,1400,
",
    [3] "DDD,20130610,1415,1530,
"
]
[
    [0] "AAA,20130610,730,1015,
",
    [1] "BBB,20130610,1015,1200,
",
    [2] "CCC,20130610,1230,1400,
",
    [3] "DDD,20130610,1415,1530,
"
]
[download]

I left your @Records almost as is (only removed new line) and changed @RecCheck so that it would be an array of arrays like I think you wanted:

#!/usr/bin/env perl
use strict;
use warnings;
use feature 'say';
use Data::Printer;

my @Records;
push( @Records, join ',', ( "AAA", 20130610, 730,  1015 ) );
push( @Records, join ',', ( "BBB", 20130610, 1015, 1200 ) );
push( @Records, join ',', ( "CCC", 20130610, 1230, 1400 ) );
push( @Records, join ',', ( "DDD", 20130610, 1415, 1530 ) );

my @RecordRowFields;
my @RecCheck;
for my $RecordRow (@Records) {
    @RecordRowFields = split /,/, $RecordRow;
    push( @RecCheck, [@RecordRowFields] );
}

say "Single element: $RecCheck[1][2]";

p @RecCheck;

__END__
[
    [0] [
        [0] "AAA",
        [1] 20130610,
        [2] 730,
        [3] 1015
    ],
    [1] [
        [0] "BBB",
        [1] 20130610,
        [2] 1015,
        [3] 1200
    ],
    [2] [
        [0] "CCC",
        [1] 20130610,
        [2] 1230,
        [3] 1400
    ],
    [3] [
        [0] "DDD",
        [1] 20130610,
        [2] 1415,
        [3] 1530
    ]
]
Single element: 1015
[download]

Comment on Re: element of an array of arrays Select or Download Code

Replies are listed 'Best First'.
Re^2: element of an array of arrays by JockoHelios (Scribe) on Jun 17, 2013 at 02:21 UTC
So when I push arrays onto an empty array, that doesn't create an array of arrays ? Interesting, that's not where I thought the problem was. Now I'm at a loss. How would I create an array of arrays with that data ? Dyslexics Untie !!!	[reply]
Re^3: element of an array of arrays by frozenwithjoy (Priest) on Jun 17, 2013 at 02:24 UTC
I just updated my answer w/ code that creates an AoA. You were basically pushing a list into an array and it gets incorporated into the array just like all the elements. What you needed to do was push an array reference.	[reply]
Re^3: element of an array of arrays by Anonymous Monk on Jun 17, 2013 at 03:09 UTC
So when I push arrays onto an empty array, that doesn't create an array of arrays ? an array of arrays is an array of arrayrefs When you push @arra, @array you're pushing a list onto @arra push @arra, \@array; ## pushing arrayreference, array of arrays achieved	[reply]
Re^4: element of an array of arrays by Anonymous Monk on Jun 17, 2013 at 03:11 UTC
perldoc -f push push ARRAY,LIST push EXPR,LIST Treats ARRAY as a stack by appending the values of LIST to the end of ARRAY. The length of ARRAY increases by the length of LIST.	[reply]