Implement scrolling refresh effect based on jQuery

Jquery implements a simple scrolling refresh effect:

Actual situation: Use Ajax to obtain background data and update the front-end page to achieve the page scrolling refresh effect

HTML text:

<form id="form1" runat="server">
<div style="height: 3000px; background-color: yellow;">
</div>
</form>

Javascript operation code:

$(document).ready(function() {
 
 $(window).scroll(function() {
//$(document).scrollTop() 获取垂直滚动的距离:最小值为0，最大值：文档高度-可视化窗口高度
//$(document).scrollLeft() 这是获取水平滚动条的距离
  console.log("垂直滚动条位置："+$(document).scrollTop()+"--"+$(window).height());
 
 if ($(document).scrollTop() <= 0) {
    console.log("滚动条已经到达顶部为0");
  }
 
  /**
   *$(document).height():文档的高度
   *$(window).height()：可视域的高度：窗口的大小：根据浏览窗口的大小变化
   *判断底部:文档高度<=滚动条垂直高度+可视窗口的高度
   * */
  if ($(document).scrollTop() >= $(document).height() - $(window).height()) {
   console.log("滚动条已经到达底部为" + $(document).scrollTop());
  }
});
 });

Effect:

The above is the summary of this article All the content, I hope it will be helpful to everyone's learning, and I also hope everyone will support the PHP Chinese website.

For more articles related to implementing scrolling refresh effect based on jQuery, please pay attention to the PHP Chinese website!