Re^2: Dereference array of arrays


laziness, impatience, and hubris
	PerlMonks

Re^2: Dereference array of arrays

by Eily (Monsignor)

on Nov 12, 2013 at 15:29 UTC ( [id://1062218]=note: print w/replies, xml )

Need Help??

in reply to Re: Dereference array of arrays
in thread Dereference array of arrays

Or even just:

use warnings;
use strict;

my $array_ref = [
    [ '0.93', 'a1', 'b1' ],
    [ '0.89', 'a2', 'b2' ],
    [ '0.88', 'a3', 'b3' ],
    [ '0.87', 'a4', 'b4' ],
    [ '0.86', 'a5', 'b5' ]
];

for my $row (@$array_ref)
{
  for my $element (@$row)
  {
     print $element, "\n"; # using say, or setting $\ locally would wo
+rk as well
  }
}
[download]

You often have no need to know the indexes when looping through an array. And since an array begins with index 0, you would skip the first element with : for ( 1 .. $#$val ) UPDATE: which is done on purpose, my bad \o/

Comment on Re^2: Dereference array of arrays Select or Download Code

Replies are listed 'Best First'.

Re^3: Dereference array of arrays
by 2teez (Vicar) on Nov 12, 2013 at 17:01 UTC

..You often have no need to know the indexes when looping through an array. And since an array begins with index 0, you would skip the first element with : for ( 1 .. $#$val )..

And how was I looping through the array of array provided by the OP? Please check Re: Dereference array of arrays again. OR maybe that is met for the OP.

If you tell me, I'll forget.
If you show me, I'll remember.
if you involve me, I'll understand.
--- Author unknown to me

[reply]
[d/l]

In Section Seekers of Perl Wisdom