js solution to keep refreshing when judging whether it is PC or mobile

The content of this article is about the solution to keep refreshing when js determines whether it is a PC or a mobile terminal. The article introduces the understanding of this in js. It has certain reference value. Friends in need can For reference, I hope it will be helpful to you.

When I was writing the official website, I made both PC and mobile terminals. I searched for such code on the Internet, and it seemed that there was no problem at all. After putting it into the page, the PC page remained unchanged. I refreshed and couldn't stop it at all. I found similar js and still had the same problem. After repeated attempts, I discovered that the problem was an extra line of code:

Original code example:

<script>
　　//平台、设备和操作系统
　　var system = {
　　win: false,
　　mac: false,
　　xll: false,
　　ipad:false
　　};
　　//检测平台
　　var p = navigator.platform;
　　system.win = p.indexOf("Win") == 0;
　　system.mac = p.indexOf("Mac") == 0;
　　system.x11 = (p == "X11") || (p.indexOf("Linux") == 0);
　　system.ipad = (navigator.userAgent.match(/iPad/i) != null)?true:false;
　　//跳转语句，如果是手机访问就自动跳转到" "里的页面
　　if (system.win || system.mac || system.xll||system.ipad) {
　　window.location.href = "  PC端网站名 ";
　　} else {
　　window.location.href = " 移动端端网站名   ";
　　}
　　</script>
　　
　　

Modified code example:

<script>
　　//平台、设备和操作系统
　　var system = {
　　win: false,
　　mac: false,
　　xll: false,
　　ipad:false
　　};
　　//检测平台
　　var p = navigator.platform;
　　system.win = p.indexOf("Win") == 0;
　　system.mac = p.indexOf("Mac") == 0;
　　system.x11 = (p == "X11") || (p.indexOf("Linux") == 0);
　　system.ipad = (navigator.userAgent.match(/iPad/i) != null)?true:false;
　　//跳转语句，如果是手机访问就自动跳转到" "里的页面
　　if (system.win || system.mac || system.xll||system.ipad) {
　//window.location.href = "PC端网站名";(在PC端引入js代码段时，这一行不能要，否则一直循环刷新，移动端同理)
　　} else {
　　
　　window.location.href = " 移动端端网站名   ";
　　}
　　</script>

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