js分辨浏览器类别和版本
function BrowserInfo() {
var ua = navigator.userAgent.toLowerCase();
var Sys = {};
var s;
(s = ua.match(/msie ([\d.]+)/)) ? Sys.ie = s[1] : (s = ua
.match(/Trident\/(\d+)/i)) ? Sys.ie11 = s[1] : (s = ua
.match(/edge.([\d.]+)/)) ? Sys.edge = s[1] : (s = ua
.match(/opera.([\d.]+)/)) ? Sys.opera = s[1] : (s = ua
.match(/opr.([\d.]+)/)) ? Sys.opera = s[1] : (s = ua
.match(/firefox\/([\d.]+)/)) ? Sys.firefox = s[1] : (s = ua
.match(/chrome\/([\d.]+)/)) ? Sys.chrome = s[1] : (s = ua
.match(/version\/([\d.]+).*safari/)) ? Sys.safari = s[1] : 0;
var mBrowserInfo = {};
if (Sys.ie) {
mBrowserInfo.name = “IE”;
mBrowserInfo.version = parseInt(Sys.ie);
} else if (Sys.ie11) {
mBrowserInfo.name = “IE”;
mBrowserInfo.version = 11;
} else if (Sys.firefox) {
mBrowserInfo.name = “Firefox”;
mBrowserInfo.version = Sys.firefox;
} else if (Sys.chrome) {
mBrowserInfo.name = “Chrome”;
mBrowserInfo.version = Sys.chrome;
} else if (Sys.opera) {
mBrowserInfo.name = “Opera”;
mBrowserInfo.version = Sys.opera;
} else if (Sys.safari) {
mBrowserInfo.name = “Safari”;
mBrowserInfo.version = Sys.safari;
} else if (Sys.edge) {
mBrowserInfo.name = “Edge”;
mBrowserInfo.version = Sys.edge;
} else {
//默认Chrome
mBrowserInfo.name = “Chrome”;
mBrowserInfo.version = 0;
}
return mBrowserInfo;
}