浏览器检测JS代码(兼容目前各大主流浏览器)

 var BrowserMatch = { init: function () { this.browser = this.getBrowser().browser || "An Unknown Browser"; this.version = this.getBrowser().version || "An Unknown Version"; this.OS = this.getOS() || "An Unknown OS"; }, getOS:function(){ if(navigator.platform.indexOf("Win")!= -1) return "Windows"; if(navigator.platform.indexOf("Mac")!= -1) return "Mac"; if(navigator.platform.indexOf("Linux")!= -1) return "Linux"; if(navigator.userAgent.indexOf("iPhone")!= -1) return "iPhone/iPod"; }, getBrowser:function () { var rMsie = /(msie\s|trident\/7)([\w\.]+)/; var rTrident = /(trident)\/([\w.]+)/; var rFirefox = /(firefox)\/([\w.]+)/; var rOpera = /(opera).+version\/([\w.]+)/; var rNewOpera = /(opr)\/(.+)/; var rChrome = /(chrome)\/([\w.]+)/; var rSafari = /version\/([\w.]+).*(safari)/; var ua = navigator.userAgent.toLowerCase(); var matchBS,matchBS2; matchBS = rMsie.exec(ua); if (matchBS != null) { matchBS2 = rTrident.exec(ua); if (matchBS2 != null){ switch (matchBS2[2]){ case "4.0": return { browser : "IE", version : "8" };break; case "5.0": return { browser : "IE", version : "9" };break; case "6.0": return { browser : "IE", version : "10" };break; case "7.0": return { browser : "IE", version : "11" };break; default:return { browser : "IE", version : "Undefined" }; } }else{ return {browser : "IE", version : matchBS[2] || "0" }; } } matchBS = rFirefox.exec(ua); if ((matchBS != null)&&(!(window.attachEvent))&&(!(window.chrome))&&(!(window.opera))) { return { browser : matchBS[1] || "", version : matchBS[2] || "0" }; } matchBS = rOpera.exec(ua); if ((matchBS != null)&&(!(window.attachEvent))) { return { browser : matchBS[1] || "", version : matchBS[2] || "0" }; } matchBS = rChrome.exec(ua); if ((matchBS != null)&&(!!(window.chrome))&&(!(window.attachEvent))) { matchBS2 = rNewOpera.exec(ua); if(matchBS2 == null){ return { browser : matchBS[1] || "", version : matchBS[2] || "0" }; }else{ return { browser : "Opera", version : matchBS2[2] || "0" }; } } matchBS = rSafari.exec(ua); if ((matchBS != null)&&(!(window.attachEvent))&&(!(window.chrome))&&(!(window.opera))) { return { browser : matchBS[2] || "", version : matchBS[1] || "0" }; } } }; BrowserMatch.init();