JQuery Add Class To Object With .get() Method

running into a weird thing and I'm not sure what's going on. I've grabbed the index of a DOM element via .index(), found a matching element via .get() and I'm trying to add a class

Solution 1:

You need to wrap it into a jquery object.

$(nFLi.get(active)).addClass('active');

Or you could use .eq method instead of .get, which returns a jquery object instead of original HTMLElement.

nFLi.eq(active).addClass('active');