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scroll.js
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39 lines (30 loc) · 1.13 KB
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// Scroll //
const observer = new IntersectionObserver((entries) => {
entries.forEach((entry) => {
console.log(entry)
if(entry.isIntersecting){
entry.target.classList.add('show');
}else{
entry.target.classList.remove('show');
}
});
});
const scrollElements = document.querySelectorAll('.scroll');
scrollElements.forEach((el) => observer.observe(el));
//---------------------------------------------------------------
// button to top of page //
let mybutton = document.getElementById("myBtn");
// When the user scrolls down 20px from the top of the document, show the button
window.onscroll = function() {scrollFunction()};
function scrollFunction() {
if (document.body.scrollTop > 20 || document.documentElement.scrollTop > 20) {
mybutton.style.display = "block";
} else {
mybutton.style.display = "none";
}
}
// When the user clicks on the button, scroll to the top of the document
function topFunction() {
document.body.scrollTop = 0;
document.documentElement.scrollTop = 0;
}