re: The Useful & Hidden '_' Command In Ruby VIEW POST


It's not a Ruby method, it's an irb (Ruby interactive prompt or REPL) shortcut for the result of the last evaluated expression. _ doesn't have such a meaning in a regular Ruby program.


Hey Dmitry. Yep you are absolutely right! The _ expression cannot be used in regular Ruby programs. I'll update the post to add a clarifying statement about this point. Thanks!

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