The article mentions Unobtrusive JavaScript toward the end:
"With the addition of classes I can enjoy all the custom CSS Bootstrap provides for the most part of what we need as far as styling goes . Why can’t we have same for JS ? It turns out we actually do and such libraries are known as UnObstrusive JS libs."
http://ricostacruz.com/rsjs/
The main difference is that Unobtrusive JavaScript relies on HTML5 data attributes rather than misusing CSS classes.
Perhaps the most well-known example of the Unobtrusive JavaScript approach are the AJAX helpers of Rails:
http://guides.rubyonrails.org/working_with_javascript_in_rai...