IE11 supports classList just fine, except for an argument to toggle. Nothing a little DOMTokenList.prototype change can't fix.
> The last thing I'd want to see is a codebase going from 40 lines of code to 400 lines, because "hey, we removed jQuery and writing verbose js is the new cool these days"
That will only happen if you're incompetent and will not write a few simple helper functions. And probably not even then. Plain DOM API is not that verbose over jQuery. Anyway, just look at what subset of jQuery you use the most and write helpers for that.
Your codebase is already grown by 1000s of lines by using jQuery, so you have quite a head start sizewise if you drop jQuery.
> The last thing I'd want to see is a codebase going from 40 lines of code to 400 lines, because "hey, we removed jQuery and writing verbose js is the new cool these days"
That will only happen if you're incompetent and will not write a few simple helper functions. And probably not even then. Plain DOM API is not that verbose over jQuery. Anyway, just look at what subset of jQuery you use the most and write helpers for that.
Your codebase is already grown by 1000s of lines by using jQuery, so you have quite a head start sizewise if you drop jQuery.