javascript check if element is visible on screen
// Where el is the DOM element you'd like to test for visibility
<script>
function isHidden(el) {
return (el.offsetParent === null);
}
var el = document.getElementById('el');
alert(isHidden(el));
</script>
// if true then element "el" is visible otherwise not visiblecheck if element is on screen
function checkVisible(elm) {
var rect = elm.getBoundingClientRect();
var viewHeight = Math.max(document.documentElement.clientHeight, window.innerHeight);
return !(rect.bottom < 0 || rect.top - viewHeight >= 0);
}Copyright © 2021 Codeinu
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