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Re: problems passing variables between subroutine

by philiprbrenan (Monk)
on Sep 04, 2012 at 19:34 UTC ( #991683=note: print w/ replies, xml ) Need Help??


in reply to problems passing variables between subroutines

Please use a reference an array rather than an actual array in:

sub create_output (\@$) { my (@array_of_lines, $entry_no_new) = @_;

as below:

use feature ":5.14"; use warnings FATAL => qw(all); use strict; use Data::Dump qw(dump pp); sub foo(\@) {my ($array) = @_; say "@$array"; } my @array = qw(1 2 3); foo(@array);

Produces

1 2 3


Comment on Re: problems passing variables between subroutine
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Re^2: problems passing variables between subroutine
by GrandFather (Cardinal) on Sep 05, 2012 at 02:04 UTC

    Please don't encourage needless use of prototypes!

    Also in simple cases passing arrays by reference serves only to obscure the code so don't do that. Just because a technique fixes a problem in some cases, doesn't mean it should be used in all cases. Be selective about the habits you acquire and apply them along with a little consideration rather than blindly following a set of rules.

    True laziness is hard work

      Also in simple cases passing arrays by reference serves only to obscure the code so don't do that.

      Nonsense

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