Compare the approaches to object orientation taken by Perl 5, PHP 5, JavaScript, Python, and Ruby. What is meant by the blessing of a reference in Perl? What are prototypes in JavaScript? What purpose...

Compare the approaches to object orientation taken by Perl 5, PHP 5, JavaScript, Python, and Ruby. What is meant by the blessing of a reference in Perl? What are prototypes in JavaScript? What purpose do they serve? Does filename “globbing” provide the expressive power of standard regular expressions? Explain.