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search engine search engine According to the Ruby FAQ, "If you like Perl, you will like Ruby and be right at home with its syntax. If you like Smalltalk, you will like Ruby and be right at home with its semantics. If you like Python, you may or may not be put off by the huge difference in design philosophy between Python and Ruby/Perl." [3] Features object-oriented four levels of variable scope: global, class, instance, and local exception handling iterators and closures (based on passing blocks of code) native, Perl-like regular expressions at the language leveloperator overloading automatic garbage collecting highly portable cooperative multi-threading on all platforms using green threads DLL/shared library dynamic loading on most platformsintrospection, reflection and meta-programming large standard library supports dependency injection continuations and generators (examples in RubyGarden: continuations and generators) Ruby currently lacks full support for Unicode, though it has partial support for UTF-8. Interaction The Ruby official distribution also includes "irb", an interactive command-line interpreter which can be used to test code quickly.

search engine A session with this interactive program might be: $ irb irb(main):001:0> "Hello, World" => "Hello, World" irb(main):002:0> 1+2 => 3 Syntax The syntax of Ruby is broadly similar to Perl and Python. Class and method definitions are signaled by keywords. In contrast to Perl, variables are not obligatorially prefixed with a sigil. (When used, the sigil changes the semantics of scope of the variable.) The most striking difference from C and Perl is that keywords are typically used to define logical code blocks, without brackets.

search engine Line breaks are significant and taken as the end of a statement; a semicolon may be equivalently used. Indentation is not significant (unlike Python). See the Examples section for samples of code demonstrating Ruby syntax. Some links to web pages that show examples of using Ruby Ruby Basic Input Output Ruby Classes Objects and Variables Ruby Containers Blocks_and Iterators Ruby and the Web Web Hosting Glossary -USA Department of Commerce and European Commission "SAFE HARBOR" USA Department of Commerce and European Commission "SAFE HARBOR" INTRODUCTION TO THE SAFE HARBOR:The European Commission~Rs Directive on Data Protection went into effect in October,1998, and would prohibit the transfer of personal data to non-European Union nations that do not meet the European ~Sadequacy~T standard for privacy protection. While the United States and the European Union share the goal of enhancing privacy protection for their citizens, the United States takes a different approach to privacy from that taken by the European Union.

search engine The United States uses a sectoral approach that relies on a mix of legislation, regulation, and self regulation. The European Union, however, relies on comprehensive legislation that, for example, requires creation of government data protection agencies, registration of data bases with those agencies, and in some instances prior approval before personal data processing may begin. As a result of these different privacy approaches, the Directive could have significantly hampered the ability of U.S. companies to engage in many trans-Atlantic transactions.

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