how to check element is in viewport
function isVisible (ele) {
const { top, bottom } = ele.getBoundingClientRect();
const vHeight = (window.innerHeight || document.documentElement.clientHeight);
return (
(top > 0 || bottom > 0) &&
top < vHeight
);
}Element in viewport or not ?
function isElementInViewport (el) {
// Special bonus for those using jQuery
if (typeof jQuery === "function" && el instanceof jQuery) {
el = el[0];
}
var rect = el.getBoundingClientRect();
return (
rect.top >= 0 &&
rect.left >= 0 &&
rect.bottom <= (window.innerHeight || document.documentElement.clientHeight) && /* or $(window).height() */
rect.right <= (window.innerWidth || document.documentElement.clientWidth) /* or $(window).width() */
);
}Copyright © 2021 Codeinu
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