Except that print is not a void context. Therefore the map will create a list. 
#!/usr/bin/perl

use strict;
use warnings;

my $a = ( print "Hello world\n" );
print "The answer is $a\n";

__END__

[download]
See `perldoc -f print` for details.

In reply to Re^3: process array with while loop by shawnhcorey
in thread process array with while loop by reason2006

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