Try this: 
#!/usr/bin/perl
use strict;
use warnings;

my $x;
$x = $x+1;

print $x;

[download]
I get: 
Use of uninitialized value in addition (+) at tmp.pl line 6.

[download]
Then try: 
#!/usr/bin/perl
use strict;
use warnings;

my $x;
$x = $x ? $x+1 : 1;

print $x;

[download]
to see the difference...

cLive ;-)

In reply to Re^3: Refactoring: dumb or witty use of ternary operator? by cLive ;-)
in thread Refactoring: dumb or witty use of ternary operator? by PetaMem

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