I recently read this article:
http://www.kdnuggets.com/2017/05/frameworks-offer-data-scientists-programming-languages-lack.html
What a mind opener and so true (to a degree, but a high degree)! Why bother with languages that a person has to learn and do all kinds of stuff, when one can leverage a framework and - viola! - create something rapidly? Ruby-on-Rails is a great example. Perhaps it's why it's one of the most useful RAD frameworks. Of course, there are cases when a person will not want to use a framework (or find one that more-so matches the product development's purpose). For example, if you need to customize a lot instead of following conventions, then Rails is not for you. Spring might be a better match, but that involves switching languages. I haven't researched and played with all the different Ruby frameworks, but perhaps there is one that is more flexible and customizable?
Either way, know the frameworks and don't dig too deep into the languages UNLESS you must use the specific language to accomplish your goal.
Good luck,
G2
