An example for the lazy folks out there, that demonstrates (for beginners) why warnings would be useful in addition to strict.

using strict only 
use strict; 

my $string = 'hello world'; 
print substr($string,'O',5)."\n";

[download]
Output doesn't really scream don't use the letter O: 
perl absurd.pl
hello

[download]
using strict and warnings 
use strict; 
use warnings;

my $string = 'hello world'; 
print substr($string,'O',5)."\n";

[download]
Useful output with some notes on what should be a number and isn't: 
perl absurd.pl
Argument "O" isn't numeric in substr at absurd.pl line 4.
hello

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In reply to Re: Barewords equal zero? by rgiskard
in thread Barewords equal zero? by Cody Pendant

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