Continuous Looping Page (Not Infinite Scroll) - loops

Question

I'm looking for resources that create scrolling functions like the ones found on these sites:
Outpost Journal
Unfold
Once the scroll bar hits the bottom of the page, I want it to loop back to the top.
I'm familiar with with the infinite scroll, and this is not what I want. I've also found scripts that will write/add the same content to the bottom of the page, but none that loop back to the top of the page.

Answer 1

Try this:
$('document').ready(function() {
$(document).scroll(function(){
if(document.documentElement.clientHeight +
$(document).scrollTop() >= document.body.offsetHeight )$(document).scrollTop(0);
});
});

Answer 2

if you want infinite scroll in both directions use
if (document.documentElement.clientHeight + $(window).scrollTop() >= $(document).height()) {
$(document).scrollTop(0)
} else if ($(window).scrollTop() < 0) {
$(document).scrollTop($(document).height())
}
(I know it's a late reply but it still helps users like me who just google stuff like this)

Answer 3

Here a solution that makes a duplicate of the body so the bottom and the top can be seen at the same time at a certain point so the transition is smoother.
$('document').ready(function() {
// We need to duplicate the whole body of the website so if you scroll down you can see both the bottom and the top at the same time. Before we do this we need to know the original height of the website.
var origDocHeight = document.body.offsetHeight;
// now we know the height we can duplicate the body
$("body").contents().clone().appendTo("body");
$(document).scroll(function(){ // detect scrolling
var scrollWindowPos = $(document).scrollTop(); // store how far we have scrolled
if(scrollWindowPos >= origDocHeight ) { // if we scrolled further then the original doc height
$(document).scrollTop(0); // then scroll to the top
}
});
});

Answer 4

mrida's answer was causing my browser to not be able to scroll, here is a modified version that worked for me:
$('document').ready(function() {
$(document).scroll(function(){
if (document.documentElement.clientHeight + $(window).scrollTop() >= $(document).height()) {
$(document).scrollTop(0);
}
});
});

Answer 5

Forked from #clankill3r's answer, create two copy of body, prepend and append to the original body, then you can scroll the page in two direction endless.
$('document').ready(function() {
var origDocHeight = document.body.offsetHeight;
var clone=$("body").contents().clone();
clone.appendTo("body");
clone.prependTo("body");
$(document).scroll(function(){
var scrollWindowPos = $(document).scrollTop();
if(scrollWindowPos >= origDocHeight ) {
$(document).scrollTop(0);
}
if(scrollWindowPos <= 0 ) {
$(document).scrollTop(origDocHeight);
}
});
});

Answer 6

Adding loop scroll backwards, upgrading #clankill3r answer. It should be something like this.
$('document').ready(function() {
// We need to duplicate the whole body of the website so if you scroll down you can see both the bottom and the top at the same time. Before we do this we need to know the original height of the website.
var origDocHeight = document.body.offsetHeight;
// now we know the height we can duplicate the body
$("body").contents().clone().appendTo("body");
$(document).scroll(function(){ // detect scrolling
var scrollWindowPos = $(document).scrollTop(); // store how far we have scrolled
if(scrollWindowPos >= origDocHeight ) { // if we scrolled further then the original doc height
$(document).scrollTop(scrollWindowPos + origDocHeight); // then scroll to the top
} else if (scrollWindowPos == 0) { // if we scrolled backwards
$(document).scrollTop(origDocHeight);
}
});
});
I'm using it horizontally and it's working just fine. Hope someone finds it useful.

Answer 7

Posted a similar question: https://stackoverflow.com/a/65953934/7474712 and found the answer via this pen: https://codepen.io/vincentorback/pen/zxRyzj
Here's the code:
<style>
html,
body {
height: 100%;
overflow: hidden;
}
.infinite {
overflow: auto;
-webkit-overflow-scrolling: touch;
}
.clone {
height: 50vw;
}
</style>
<script>
var doc = window.document,
context = doc.querySelector('.infinite'),
clones = context.querySelectorAll('.clone'),
disableScroll = false,
scrollHeight = 0,
scrollPos = 0,
clonesHeight = 0,
i = 0;
function getScrollPos () {
return (context.pageYOffset || context.scrollTop) - (context.clientTop || 0);
}
function setScrollPos (pos) {
context.scrollTop = pos;
}
function getClonesHeight () {
clonesHeight = 0;
for (i = 0; i < clones.length; i += 1) {
clonesHeight = clonesHeight + clones[i].offsetHeight;
}
return clonesHeight;
}
function reCalc () {
scrollPos = getScrollPos();
scrollHeight = context.scrollHeight;
clonesHeight = getClonesHeight();
if (scrollPos <= 0) {
setScrollPos(1); // Scroll 1 pixel to allow upwards scrolling
}
}
function scrollUpdate () {
if (!disableScroll) {
scrollPos = getScrollPos();
if (clonesHeight + scrollPos >= scrollHeight) {
// Scroll to the top when you’ve reached the bottom
setScrollPos(1); // Scroll down 1 pixel to allow upwards scrolling
disableScroll = true;
} else if (scrollPos <= 0) {
// Scroll to the bottom when you reach the top
setScrollPos(scrollHeight - clonesHeight);
disableScroll = true;
}
}
if (disableScroll) {
// Disable scroll-jumping for a short time to avoid flickering
window.setTimeout(function () {
disableScroll = false;
}, 40);
}
}
function init () {
reCalc();
context.addEventListener('scroll', function () {
window.requestAnimationFrame(scrollUpdate);
}, false);
window.addEventListener('resize', function () {
window.requestAnimationFrame(reCalc);
}, false);
}
if (document.readyState !== 'loading') {
init()
} else {
doc.addEventListener('DOMContentLoaded', init, false)
}
</script>