there are a few areas where I need to check for nulls and i can't use some of the es6 niceties, but it's not too bad the 'revealed' event logic doesn't use an

there are a few areas where I need to check for nulls and i can't use some of the es6 niceties, but it's not too bad the 'revealed' event logic doesn't use an intersection observer because of IE, that's probably the most annoying thing I can think of