（自用面试题）JS中获取盒子模型的方式是什么？obj.offsetWidth/obj.offsetHeightobj.o

obj.offsetWidth/obj.offsetHeight
eg：

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<style>
    * {
        margin: 0;
        padding: 0;
    }

    div {
        width: 200px;
        height: 200px;
        padding: 10px;
        border: 5px solid red;
    }
</style>

<body>
    <div id="div1">盒子模型</div>

    <script>
        let w = document.getElementById('div1').offsetWidth;
        console.log(w);
    </script>
</body>
</html>