[Rails] Unobtrusive Javascript in rails 4

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? --

[Rails] Unobtrusive Javascript in Rails

Hi everybody, I love using rails, but one of my major problems with it has always been how the helper methods create some really ugly inline javascript. I've recently found jQuery after watching Ryans brilliant Railscast about it (http://railscasts.com/episodes/136-jquery). I think that jQuery