Try ruby

Tried "try ruby".

• This is an in-browser tutorial, which requires nothing but a web browser to try ruby. Obviously, this is something any computer language evangelist should do if he or she is serious about disseminating the language.
• Tutorial commands on ruby prompt may be a bit confusing or misleading for ruby newbies. Because those commands must be methods of the main object but it's hard for newbies to understand the difference between the methods and variables.
• "Methods. You've used English-language methods like reverse and symbolic methods like * (the multiplication method.) Methods are actions!" I think this sentence explains nothing. It contains abstract terms such as methods, symbolic, actions, and tell nothing about them. IMHO, following version is much better: "Methods. You've used word-like methods such as reverse and arithmetic-letter-like methods such as *. Methods are methods to make something happen."
• Explaining [] as a scope to target something sounds good.
• I quit this tutorial at #6. It's boring.