I'm not saying to go back and alter legacy code, but in 2021 you should not be writing JS with var... enterprise is a ship difficult to steer, but you can do it slowly. I don't shame on my colleagues still using jQuery to build stuff, but you can use const and let with jQuery.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
I'm not saying to go back and alter legacy code, but in 2021 you should not be writing JS with var... enterprise is a ship difficult to steer, but you can do it slowly. I don't shame on my colleagues still using jQuery to build stuff, but you can use const and let with jQuery.