INFINITE SCROLLING assignment , which is built from pure JS.
You are required to make a list that will scroll infinitely
add 25 items on load
user overflow css property to manage the scrollbar for the div
add event listener to list element ( can use debouncing / throttling here )
use scroll event
check a condition to see if you have reached the end of the element
look at the following properties in the Element API
scrollTop
clientHeight
scrollHeight
getBoundingClientRect
getClientRects
use in any combination to achieve your task
when the condition is met, load 25 more items into the list
For the ones who are got it already done in plain JS