浏览器useragent
var ua = window.navigator.userAgent;
edge ：Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.140 Safari/537.36 Edge/17.17134
Chrome：Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/72.0.3626.119 Safari/537.36
Opera（高版本）：Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36 OPR/58.0.3135.118
fixfox：Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:65.0) Gecko/20100101 Firefox/65.0
ie11：Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729; rv:11.0) like Gecko （兼容模式得出的）
ie10：Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; .NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.30729) （兼容模式得出的）
ie8：Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; WOW64; Trident/4.0)
Android 微信浏览器：Mozilla/5.0 (Linux; Android 8.0.0; STF-AL00 Build/HUAWEISTF-AL00; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/66.0.3359.126 MQQBrowser/6.2 TBS/044504 Mobile Safari/537.36 MMWEBID/6992 MicroMessenger/7.0.3.1400(0x2700033A) Process/tools NetType/WIFI Language/zh_CN
Android QQ浏览器：Mozilla/5.0 (Linux; Android 8.0; STF-AL00 Build/HUAWEISTF-AL00; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/57.0.2987.132 MQQBrowser/6.2 TBS/044468 Mobile Safari/537.36 V1_AND_SQ_7.7.0_882_YYB_D QQ/7.7.0.3640 NetType/WIFI WebP/0.3.0 Pixel/1080
Android 华为浏览器：Mozilla/5.0 (Linux; U; Android 8.0.0zh-cn; STF-AL00 Build/HUAWEISTF-AL00) AppleWebKit/537.36 (KHTML, like Gecko)Version/4.0 Chrome/57.0.2987.132 MQQBrowser/8.1 Mobile Safari/537.36
iOS 微信浏览器：Mozilla/5.0 (iPhone; CPU iPhone OS 12_1_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/16C101 MicroMessenger/7.0.0(0x17000024) NetType/WIFI Language/zh_CN
iOS Safari：Mozilla/5.0 (iPhone; CPU iPhone OS 12_1_2 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0 Mobile/15E148 Safari/604.1
在Chrome（28及往后版本）、Opera（15及往后版本）和Yandex浏览器中使用blink内核，但在user-agent上却没有体现（仍然写的appleWebkit）。这也是为了兼容性，web开发者都习惯了将webkit作为兼容性最好的内核， 为了更好地浏览器体验，就沿用了webkit字段
var client = function(){ //呈现引擎 var engine = { ie: 0, gecko: 0, webkit: 0, khtml: 0, opera: 0, //完整的版本号 ver: null }; //浏览器 var browser = { //主要浏览器 edge:0, ie: 0, firefox: 0, safari: 0, konq: 0, opera: 0, chrome: 0, //具体的版本号 ver: null }; //平台、设备和操作系统 var system = { win: false, mac: false, x11: false, //unix(包含各种Linux） //移动设备 iphone: false, ipod: false, ipad: false, ios: false, android: false, nokiaN: false, winMobile: false, //游戏系统 wii: false, ps: false }; //检测呈现引擎和浏览器 var ua = navigator.userAgent; if (window.opera){ engine.ver = browser.ver = window.opera.version(); engine.opera = browser.opera = parseFloat(engine.ver); } else if (/AppleWebKit\/(\S+)/.test(ua)){ engine.ver = RegExp["$1"]; engine.webkit = parseFloat(engine.ver); //确定是Edge,Opera, Chrome 还是 Safari if (/Edge\/(\S+)/.test(ua)){ browser.ver = RegExp["$1"]; browser.edge = parseFloat(browser.ver); }else if (/OPR\/(\S+)/.test(ua)){ //opera浏览器后来使用blink引擎 browser.ver = RegExp["$1"]; browser.opera = parseFloat(browser.ver); }else if (/Chrome\/(\S+)/.test(ua)){ browser.ver = RegExp["$1"]; browser.chrome = parseFloat(browser.ver); } else if (/Version\/(\S+)/.test(ua)){ browser.ver = RegExp["$1"]; browser.safari = parseFloat(browser.ver); } else { //近似地确定版本号 var safariVersion = 1; if (engine.webkit < 100){ safariVersion = 1; } else if (engine.webkit < 312){ safariVersion = 1.2; } else if (engine.webkit < 412){ safariVersion = 1.3; } else { safariVersion = 2; } browser.safari = browser.ver = safariVersion; } } else if (/KHTML\/(\S+)/.test(ua) || /Konqueror\/([^;]+)/.test(ua)){ engine.ver = browser.ver = RegExp["$1"]; engine.khtml = browser.konq = parseFloat(engine.ver); } else if (/rv:([^\)]+)\) Gecko\/\d{8}/.test(ua)){ engine.ver = RegExp["$1"]; engine.gecko = parseFloat(engine.ver); //确定是不是 Firefox if (/Firefox\/(\S+)/.test(ua)){ browser.ver = RegExp["$1"]; browser.firefox = parseFloat(browser.ver); } } else if (/MSIE ([^;]+)/.test(ua)){ engine.ver = browser.ver = RegExp["$1"]; engine.ie = browser.ie = parseFloat(engine.ver); }else if(/Trident/.test(ua)){ engine.ver = browser.ver = "11.0"; engine.ie = browser.ie = 11; } //检测浏览器 //browser.ie = engine.ie; // browser.opera = engine.opera; //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); //检测 Windows 操作系统 if (system.win){ if (/Win(?:dows )?([^do]{2})\s?(\d+\.\d+)?/.test(ua)){ if (RegExp["$1"] == "NT"){ switch(RegExp["$2"]){ case "5.0": system.win = "2000"; break; case "5.1": system.win = "XP"; break; case "6.0": system.win = "Vista"; break; case "6.1": system.win = "7"; break; case "6.2": system.win = "8"; break; case "6.3": system.win = "8.1"; break; case "10.0": system.win = "10.0"; break; default: system.win = "NT"; break; } } else if (RegExp["$1"] == "9x"){ system.win = "ME"; } else { system.win = RegExp["$1"]; } } } //移动设备 system.iphone = ua.indexOf("iPhone") > -1; system.ipod = ua.indexOf("iPod") > -1; system.ipad = ua.indexOf("iPad") > -1; system.nokiaN = ua.indexOf("NokiaN") > -1; //windows mobile if (system.win == "CE"){ system.winMobile = system.win; } else if (system.win == "Ph"){ if(/Windows Phone OS (\d+.\d+)/.test(ua)){; system.win = "Phone"; system.winMobile = parseFloat(RegExp["$1"]); } } //检测 iOS 版本 if (system.mac && ua.indexOf("Mobile") > -1){ if (/CPU (?:iPhone )?OS (\d+_\d+)/.test(ua)){ system.ios = parseFloat(RegExp.$1.replace("_", ".")); } else { system.ios = 2; //不能真正检测出来，所以只能猜测 } } //检测 Android 版本 if (/Android (\d+\.\d+)/.test(ua)){ system.android = parseFloat(RegExp.$1); } //游戏系统 system.wii = ua.indexOf("Wii") > -1; system.ps = /playstation/i.test(ua); //返回这些对象 return { engine: engine, browser: browser, system: system }; }(); console.log(navigator.userAgent); console.log(client);
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