Board Thread:JS Development/@comment-116899-20191203190744

Hello. On Wikipedia, I've managed to come across a JS script that has proved beyond useful for me - this one (documentation). It allows to simultaneously open the specified number of unread changes on one's Watchlist in diff form, in multiple browser tabs or what have you. I'm very interested in acquiring this ability for use on Fandom, but apparently a simple copy-paste won't do. Seeing how my skills of using JS are rather limited, maybe someone here has any knowledge of useful script(s) or at least some advice/information that might help? Thanks! 