Unobtrusive Javascript in rails 4

[markt]

Hello

I'm new in using Ruby on rails, and I was wondering how I can use Javascript in rails 4. I searched this topic a lot

on google and I found RailsCasts - #205 Unobtrusive Javascript. Is there any good books on this topic? do you know any great links where I can find more on this topic?

[Frederick Cheung]

I'd start with http://guides.rubyonrails.org/working_with_javascript_in_rails.html

Fred