I am using impress.js library to make a presentation. I would like to attach a listener for a div where if the slide has classes present active. Then, I would like to have a counter to be displayed on the slide. I tried to use elem.addEventListener('change',function(){counter()},false), but it didn't work.
I would like to know if there is a way to attach an event to impress:next function.
Sincerely, Abdul