js jquery 获取某一元素到浏览器顶端的距离实现方法

Z时代
2024-01-10
分类：综合

如下所示：


<!doctype html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <style>
  body{
   margin: 0;
   padding: 0;
  }
  .mdiv{
   width: 100px;
   height: 100px;
   background-color: red;
  }
 </style>
</head>
<body>
<div style="height: 1000px"></div>
<div class="banner"></div>
<script src="jquery.js"></script> //自行下载
<script>
 //原生
 //获取div距离顶部的距离
 var mTop = document.getElementsByClassName('banner')[0].offsetTop;
 //减去滚动条的高度
 var sTop = document.body.scrollTop;
 var result = mTop - sTop;
 console.log(result);
 //Jquery
 mTop = $('.banner')[0].offsetTop;
 sTop = $(window).scrollTop();
 result = mTop - sTop;
 console.log(result);
</script>
</body>