var width = document.getElementById('myID').offsetWidth;//includes margin,border,padding
var height = document.getElementById('myID'). offsetHeight;//includes margin,border,padding//includes margin and padding
document.getElementById('myDiv').offsetHeight;
//without margin and padding
document.getElementById('myDiv').clientHeight;const heightOutput = document.querySelector("#height");
const widthOutput = document.querySelector("#width");
function resizeListener() {
heightOutput.textContent = window.innerHeight;
widthOutput.textContent = window.innerWidth;
}
window.addEventListener("resize", resizeListener);var intElemOffsetHeight = element.offsetHeight;<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
</head>
<body>
<div id="box" style="background-color: salmon">Box 1</div>
<script src="index.js"></script>
</body>
</html>