【JS工具方法】判断各个设备上的浏览器

判断是PC还是手机

// 判断手机/PC
function IsPC() {
        var userAgentInfo = navigator.userAgent;
        var Agents = ['Android', 'iPhone',
            'SymbianOS', 'Windows Phone',
            'iPad', 'iPod'
        ];
        var flag = true;
        for (var i = 0; i < Agents.length; i++) {
            if (userAgentInfo.indexOf(Agents[i]) != -1) {
                flag = false;
                break;
            }
        }
        return flag;
}
if (IsPC()) {
    alert('这是PC');
} else {
    alert('这不是PC');
}

判断是否是IE

function isIE() { //ie?
    if (!!window.ActiveXObject || "ActiveXObject" in window){
        return true;
    } else{
        return false;
    }
}
if (isIE()) {
    alert('是IE');
} else {
    alert('不是IE');
}

判断IE浏览器版本

// 判断是否为IE 且返回IE版本
function IEVersion() {
    //取得浏览器的userAgent字符串  
    var userAgent = navigator.userAgent;
    //判断是否IE<11浏览器   
    var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1; 
    //判断是否IE的Edge浏览器  
    var isEdge = userAgent.indexOf("Edge") > -1 && !isIE; 
    var isIE11 = userAgent.indexOf('Trident') > -1 && userAgent.indexOf("rv:11.0") > -1;
    if(isIE) {
        var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
        reIE.test(userAgent);
        var fIEVersion = parseFloat(RegExp["$1"]);
        if(fIEVersion == 7) {
            return 7;
        } else if(fIEVersion == 8) {
            return 8;
        } else if(fIEVersion == 9) {
            return 9;
        } else if(fIEVersion == 10) {
            return 10;
        } else {
            return 6;//IE版本<=7
        }   
    } else if(isEdge) {
        return 'edge';//edge
    } else if(isIE11) {
        return 11; //IE11  
    }else{
        return -1;//不是ie浏览器
    }
}
alert(IEVersion());

判断是否是微信的浏览器

function isWeiXin(){
    var ua = window.navigator.userAgent.toLowerCase();
    if(ua.match(/MicroMessenger/i) == 'micromessenger'){
        return true;
    }else{
        return false;
    }
}
if(isWeiXin()){
    //是微信； 
    alert('是微信');
}else{
    //不是微信
    alert('不是微信');
}

判断是苹果还是安卓

方法一

function detect(){
    var equipmentType = "";
    var agent = navigator.userAgent.toLowerCase();
    var android = agent.indexOf("android");
    var iphone = agent.indexOf("iphone");
    var ipad = agent.indexOf("ipad");
    if(android != -1){
        equipmentType = "android";
    }
    if(iphone != -1 || ipad != -1){
        equipmentType = "ios";
    }
    return equipmentType;
}

$('button').click(function(){
    var obj=detect();
    if (obj=="android") {
        alert('这是安卓系统');
    }else if(obj=="ios"){
        alert('这是苹果系统');
    }else{
        alert('啥也不是');
    }
});

方法二

var isMobile = {
    Android: function () {
        return navigator.userAgent.match(/Android/i);
    },
    BlackBerry: function () {
        return navigator.userAgent.match(/BlackBerry/i);
    },
    iOS: function () {
        return navigator.userAgent.match(/iPhone|iPad|iPod/i);
    },
    Opera: function () {
        return navigator.userAgent.match(/Opera Mini/i);
    },
    Windows: function () {
        return navigator.userAgent.match(/IEMobile/i);
    },
    any: function () {
        return (isMobile.Android() || 
                isMobile.BlackBerry() || 
                isMobile.iOS() || 
                isMobile.Opera() || 
                isMobile.Windows());
    }
};
$('#btn').click(function(){
   console.log(isMobile.any());//返回安卓。苹果等
   if (isMobile.any()=='Android') {
        alert('这是安卓');
   }if(isMobile.any()=='iPhone') {
        console.log(isMobile.any());
        alert(isMobile.any());
   }
});

浏览器检测汇总

var uesrBrowser = {
    userAgentInfo : window.navigator.userAgent.toLowerCase(),
    isPC: function() {
      var ua = navigator.userAgent;
      var Agents = ['Android', 'iPhone',  'SymbianOS', 'Windows Phone', 'iPad', 'iPod'];
      var flag = true;
      for (var i = 0; i < Agents.length; i++) {
          if (ua.indexOf(Agents[i]) != -1) {
              flag = false;
              break;
          }
      }
      return flag;
    }, 
    isIE: function() {
        //  判断是否为edge
        if (uesrBrowser.userAgentInfo.indexOf('edge/') > 0) { 
            return true;
        }
        // IE 11以下
        if (!!window.ActiveXObject || "ActiveXObject" in window){
           return true;
        } else{
            return false;
        }
    },
    // 如果是微信
    isWX: function() {
        if(uesrBrowser.userAgentInfo.match(/MicroMessenger/i) == 'micromessenger'){
            return true;
        }else{
            return false;
        }
    },
    isIOS: function() {
        var iphone = uesrBrowser.userAgentInfo.indexOf("iphone");
        var ipad = uesrBrowser.userAgentInfo.indexOf("ipad");
        if (iphone != -1 || ipad != -1) {
            return true;
        } else {
           // 是安卓
            return false;
        }
    }
};

switch(true){
    case uesrBrowser.isPC():
        console.log('是PC');
        if (uesrBrowser.isIE()) {
            alert('IE');
        }
        break;
    default:
        if (uesrBrowser.isIOS()) {
            if (uesrBrowser.isWX()) {
                alert('微信');
            } else {
                alert('这是safari!');
            }
        } else {
            alert('这是安卓!');
        }
}