Re^4: no uninitialized warnings

or like this:

$_ = '[undef]' for grep !defined, $var1, $var2, $var3;
print "$var1, $var2, $var3";
[download]

Update: I forgot that changing the values can affect program logic(as Aristotle mentioned). So, the best approach (imho) is just print with warnings or

use Data::Dumper;
print Data::Dumper->Dump([$var1, $var2, $var3], [qw(var1 var2 var3)]);
[download]

Comment on Re^4: no uninitialized warnings Select or Download Code

Replies are listed 'Best First'.
Re^5: no uninitialized warnings by Aristotle (Chancellor) on Aug 29, 2004 at 19:25 UTC
Or non-destructively and unambiguously: `print join " ", map { defined() ? "'\Q$_\E'" : 'undef' } $var1, $var2, + $var3;` [download] Makeshifts last the longest.	[reply] [d/l]