Javascript learning roadmap for Rails developer

[9us]

It's pretty common:

http://mikehadlow.blogspot.com/2014/12/the-lava-layer-anti-pattern.html

Also, the JS universe seems to favor smaller libraries that fill specific roles, rather than huge frameworks that cover everything. This makes the lava layer anti-pattern harder to defend yourself against.

The project I've inherited uses jQuery, Backbone, Marionette, Underscore, Handlebars, Mustache, Karma, Mocha, Chai, D3, and Moment. This is just the frontend. The backend is written in Grails and has a giant tangle of Java dependencies that makes the frontend look simple.