Several people have suggested Ruby Koans to me over just following a book, and this seems like a much better prospect. As there is no question regarding the entirety of Ruby Koans, what do SO users think about it? Is it mostly just syntax, or can one learn much more from solving them? :)
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migration rejected from stackoverflow.com Sep 20 '13 at 8:00
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closed as primarily opinion-based by gnat, MichaelT, GlenH7, Dan Pichelman, thorsten müller Sep 20 '13 at 8:00
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Koans improve your decision making apparatus, a critical faculty for software developers. As such, they are immensely useful.
I've gone over the ruby koans and they are definitely worthwhile. Every language has certain edge cases and the sooner you get to know them the better. The koan test cases do a good job of covering unexpected behavior and they teach you the syntax as a bonus.