InfiniteScroll.js

// PROBLEMA: hacer un infinite scroll y obtener mas datos e agregarlos a la lista
// Initial

$(window).on('scroll', scrollHandler);

function scrollHandler () {

}

// html
// <ul id="posts"></ul>
$(window).on('scroll', scrollHandler);

function scrollHandler () {
  var scrollHeight = window.scrollHeight;
  var scrollTop = window.scrollTop;
  var height = window.offsetHeight;
  
  if (scrollTop === (scrolHeight - height)) {
    getMoreData();
  }
}

function getMoreData() {
  return request(req).then(res => {
    var list = res.map(item => `<li>${item}</li>`).join('');
    var posts = document.getElementById('posts');
    posts.innerHTML += list; 
  });
}