JS determine the operating system

1, js determined mobile end system

var userAgent = navigator.userAgent;
var isAndroid = userAgent.indexOf('Android') > -1 || userAgent.indexOf('Adr') > -1; //android终端
var isIOS = !!userAgent.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/); //ios终端

2, js determined whether the PC

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

3, js determined whether the built-in browser WeChat

4, js determined whether ie browser, and returns a corresponding status

function IEVersion() {
var userAgent = navigator.userAgent; // string made browser userAgent
var isIE = userAgent.indexOf ( "compatible")> -1 && userAgent.indexOf ( "MSIE")> -1; // determines whether IE <11 browser
var isEdge = userAgent.indexOf ( "Edge")> -1 && isIE;! // is determined whether the IE browser Edge
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 Version <= 7
}
} else if(isEdge) {
return 'edge';//edge
} else if(isIE11) {
return 11; //IE11
}else{
return -1; // ie not the browser
}
}

5, js determine browser kernel

var browserInfo = {
versions:function(){
var userAgent = navigator.userAgent,
appVersion = navigator.appVersion;
return {
trident: userAgent.indexOf ( 'Trident')> -1, // IE core
soon: userAgent.indexOf ( 'Presto')> -1, // operates 内核
webKit: userAgent.indexOf ( 'AppleWebKit')> -1, // Apple, Google kernel
gecko: userAgent.indexOf ( 'Gecko')> -1 && userAgent.indexOf ( 'KHTML') == -1, // kernel Firefox
mobile: !! userAgent.match (/AppleWebKit.*Mobile * /.), // whether the mobile terminal
ios: !!userAgent.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/), //ios终端
android: userAgent.indexOf('Android') > -1 || userAgent.indexOf('Adr') > -1, //android终端
iPhone: userAgent.indexOf('iPhone') > -1 , //是否为iPhone或者QQHD浏览器
iPad: userAgent.indexOf('iPad') > -1, //是否iPad
webApp: userAgent.indexOf('Safari') == -1, //是否web应该程序，没有头部与底部
weixin: userAgent.indexOf('MicroMessenger') > -1, //是否微信（2015-01-22新增）
qq: userAgent.match(/\sQQ/i) == " qq" //是否QQ
};
},
language:(navigator.browserLanguage || navigator.language).toLowerCase()
}

6、js判断客户端操作系统

function detectOS() {
var userAgent = navigator.userAgent;
var isWin = (navigator.platform == "Win32") || (navigator.platform == "Windows");
var isMac = (navigator.platform == "Mac68K") || (navigator.platform == "MacPPC") || (navigator.platform == "Macintosh") || (navigator.platform == "MacIntel");
if (isMac) return "Mac";
var isUnix = (navigator.platform == "X11") && !isWin && !isMac;
if (isUnix) return "Unix";
var isLinux = (String(navigator.platform).indexOf("Linux") > -1);
if (isLinux) return "Linux";
if (isWin) {
var isWin2K = userAgent.indexOf("Windows NT 5.0") > -1 || userAgent.indexOf("Windows 2000") > -1;
if (isWin2K) return "Win2000";
var isWinXP = userAgent.indexOf("Windows NT 5.1") > -1 || userAgent.indexOf("Windows XP") > -1;
if (isWinXP) return "WinXP";
var isWin2003 = userAgent.indexOf("Windows NT 5.2") > -1 || userAgent.indexOf("Windows 2003") > -1;
if (isWin2003) return "Win2003";
var isWinVista= userAgent.indexOf("Windows NT 6.0") > -1 || userAgent.indexOf("Windows Vista") > -1;
if (isWinVista) return "WinVista";
var isWin7 = userAgent.indexOf("Windows NT 6.1") > -1 || userAgent.indexOf("Windows 7") > -1;
if (isWin7) return "Win7";
}
return "other";
}
document.writeln("您的操作系统是：" + detectOS());