如何使用js判斷當前頁面是pc還是移動端開啟的

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1.利用了Regex和三目運算子，含義就是如果是移動端開啟的話那就跳轉到 "https:www.baidu.com/" ，如果不是就跳轉到"http://new.baidu.com/"

window.location.href = /Android|webOS|iPhone|iPod|BlackBerry/i.test(navigator.userAgent) ? "https://www.baidu.com/" :  "http://news.baidu.com/";

　　等同於

if(/Android|webOS|iPhone|iPod|BlackBerry/i.test(navigator.userAgent)) {    window.location.href = "https://www.baidu.com/";} else {    window.location.href = "http://news.baidu.com/";}

2.第二種方法

function IsPC() {    var userAgentInfo = navigator.userAgent;    var Agents = ["Android", "iPhone",                "SymbianOS", "Windows Phone",                "iPad", "iPod"];    var flag = true;    for (var v = 0; v < Agents.length; v++) {        if (userAgentInfo.indexOf(Agents[v]) > 0) {            flag = false;            break;        }    }    return flag;}

3.第三種方法

function browserRedirect() {    var sUserAgent = navigator.userAgent.toLowerCase();    var bIsIpad = sUserAgent.match(/ipad/i) == "ipad";    var bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os";    var bIsMidp = sUserAgent.match(/midp/i) == "midp";    var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";    var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";    var bIsAndroid = sUserAgent.match(/android/i) == "android";    var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce";    var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";    if (!(bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) ){        window.location.href=B頁面;    }}browserRedirect();

4.百度判斷的方法

function uaredirect(f) { try {  if (document.getElementById("bdmark") != null) {   return  }  var b = false;  if (arguments[1]) {   var e = window.location.host;   var a = window.location.href;   if (isSubdomain(arguments[1], e) == 1) {    f = f + "/#m/" + a;    b = true   } else {    if (isSubdomain(arguments[1], e) == 2) {     f = f + "/#m/" + a;     b = true    } else {     f = a;     b = false    }   }  } else {   b = true  }  if (b) {   var c = window.location.hash;   if (!c.match("fromapp")) {    if ((navigator.userAgent.match(/(iPhone|iPod|Android|ios|SymbianOS)/i))) {     location.replace(f)    }   }  } } catch(d) {}}function isSubdomain(c, d) { this.getdomain = function(f) {  var e = f.indexOf("://");  if (e > 0) {   var h = f.substr(e + 3)  } else {   var h = f  }  var g = /^www\./;  if (g.test(h)) {   h = h.substr(4)  }  return h }; if (c == d) {  return 1 } else {  var c = this.getdomain(c);  var b = this.getdomain(d);  if (c == b) {   return 1  } else {   c = c.replace(".", "\\.");   var a = new RegExp("\\." + c + "$");   if (b.match(a)) {    return 2   } else {    return 0   }  } }};

以上是百度總結的,方便自己罷了!

 

如何使用js判斷當前頁面是pc還是移動端開啟的