[DDim1000]

Почему-то ошибка: Uncaught SyntaxError: Block-scoped declarations (let, const, function, class) not yet supported outside strict mode

window.scrollBy(0,1810);    
           let key;
const fn = () => {
if(key) return;
key = true;
`
key = false;

}
 $(window).scroll(function() {
         if($(window).scrollTop()+$(window).height()>=$(document).height()) fn()

               });