Ruby highlights

• Pure Object Oriented
• Interpretive
• Simple syntax
• Modern

Features

• Variables have no type (dynamic typing)
• No primitive types (everything is an object)
• No list context (everything returns object)
• No prior declaration needed, but initialization is often essential
• No user-level memory management (garbage collection)
• Classes, Mix-ins, Per-object methods
• Iterators for loop abstraction
• Text processing and regular expression
• Dynamic loading
• Closures, Bignums, Exception handling, system calls...

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Ruby for Perl programmers

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