JS detect browser version, core, whether to move the end of the sample _ basic knowledge

Detects browser versions, cores, systems, and whether to move the end

Copy Code code as follows:

/**
* Check Browser version
* @authors K
* @date 2014-04-11 14:48:39
* @version 1
*/

/**
* Detect browser info with navigator useragent
* @return Object Browser Info
*/

var browser = (function () {
  var useragent = navigator.useragent,
  UA = Useragent.tolowercase (),
  Browserlist = {
    msie:/(?: Msie\s|trident.*rv:) ([\w.] +/I,
    Firefox:/firefox\/([\w.] +/I,
    Chrome:/chrome\/([\w.] +/I,
    safari:/version\/([\w.] +). *safari/i,
    Opera:/(?: O pr\/| opera.+version\/) ([\w.] +)/I
 },
  kernels = {
    msie:/(compatible;\smsie\s| trident\/) [\w.] +/i,
    Camino:/camino/i,
    khtml:/khtml/i,
    Presto:/ Presto\/[\w.] +/i,
    Gecko:/gecko\/[\w.] +/i,
    WebKit:/applewebkit\/[\w.] +/i
 },
  browser = {
    kernel: ' Unknow ',
    version: ' Unknow '
 }

detecting browsers
for (var i in browserlist) {
var matchs = Ua.match (Browserlist[i]);
Browser[i] = matchs? True:false;
if (matchs) {
Browser.version = matchs[1];
}
}

Detection engine
for (var i in kernels) {
var matchs = Ua.match (Kernels[i]);
if (matchs) {
Browser.kernel = Matchs[0];
}
}

System
var os = Ua.match (/(windows\snt\s| mac\sos\sx\s| android\s|ipad.*\sos\s|iphone\sos\s) ([\d._-]+)/I);
Browser.os = Os!==null? Os[0]: false;

Whether to move the end
Browser.mobile = Ua.match (/mobile/i)!==null? True:false;

return browser;
}());