Thread:TheWikiaEditMachine/@comment-27028628-20160708005042/@comment-26287306-20160708025520

JS (JavaScript if you didn't know)  for the whole wikia community has to be manually activated by wikia staff (you can request them to do so) for security reasons. If JS gets in the wrong hands a user can exploit the wikia, CSS on the other handis automatically activated as CSS can only change the looks of elements.

I don't know any JS but fi you wanna learn, you can google javascript tutorials for specifically what you're working on (you don't even need the word wikia in it). Google searches and inspect element is how I figure how what CSS to write. What do you even wanna do with JS?