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Re: Interpolation: when it occurs? another beginner question..

by Discipulus (Curate)
on Feb 26, 2013 at 15:11 UTC ( #1020704=note: print w/ replies, xml ) Need Help??


in reply to Interpolation: when it occurs? another beginner question..

for completeness and future memory.. as this is a non-problem better would be to not-resolve it. instead rethink it and achieve in another way: a sub returnig a composed string.

#!perl use strict; use warnings; $|++; my $first; my @sec; print &compose, "\n"; $first = 'UNO'; print &compose,"\n"; push @sec, '1','2'; print &compose,"\n"; $sec[5] = 'sixt'; print &compose,"\n"; undef $first ; @sec = (); print &compose,"\n"; sub compose { my $it = 'First is '. ($first ? $first : 'not yet defined '). ' and the list is '. (@sec ? '('.(join ' ',map {$_||'UNDEFINED'}@sec ).')': ' e +mpty'); return $it; } __OUTPUT__ First is not yet defined and the list is empty First is UNO and the list is empty First is UNO and the list is (1 2) First is UNO and the list is (1 2 UNDEFINED UNDEFINED UNDEFINED sixt) First is not yet defined and the list is empty
L*
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