> It costs almost nothing more to write "event" instead of "ev" or "removeElement" instead of "remEl", but it makes the code much more readable.
No, it doesn't. Unless you're an absolute beginner, it takes you a couple of seconds to realize that in this codebase, "ev" (or "evt" or even "e") means "event". The same goes for "remEl". If that's consistent, then it's not a big deal at all.
Having less characters makes code more readable (or rather "scannable") as well, it's just another tradeoff.
No, it doesn't. Unless you're an absolute beginner, it takes you a couple of seconds to realize that in this codebase, "ev" (or "evt" or even "e") means "event". The same goes for "remEl". If that's consistent, then it's not a big deal at all.
Having less characters makes code more readable (or rather "scannable") as well, it's just another tradeoff.