Looping with Arrays - The "foreach" Loop

• Looping through each item of a list (array) is such a common programming job that Perl has a special loop mechanism to handle it: foreach
• Example:

     #!perl

     @dogs = qw(Opie Lassie Baxter Foonman Chaico);

     foreach $dog (@dogs) {
       print "Nice $dog!\n";
     }

• And now is as good a time as any to discuss Perl's weird (and very useful) "default" variable: $_
• Let's discuss:

     #!perl
     
     @dogs = qw(Opie Lassie Baxter Foonman Chaico);

     foreach (@dogs) {
       print "Nice $_\n";
     }

• Or for that matter, the more mysterious:        
  

     #!perl 

     @dogs = qw(Opie Lassie Baxter Foonman Chaico);

     foreach (@dogs) {
       print;
       print "\n";
     }