设备类型检测大全---userAgent

对各种类型的设备的检测，以及所使用的浏览器的类型

function detect(ua) {
var os = this.os = {};
var browser = this.browser = {};
var webkit = ua.match(/Web[kK]it[\/]{0,1}([\d.]+)/); //返回一个匹配的字符串的数组
var android = ua.match(/(Android);?[\s\/]+([\d.]+)?/);
var ipad = ua.match(/(iPad).*OS\s([\d_]+)/);
var ipod = ua.match(/(iPod)(.*OS\s([\d_]+))?/);
var iphone = !ipad && ua.match(/(iPhone\sOS)\s([\d_]+)/);
var webos = ua.match(/(webOS|hpwOS)[\s\/]([\d.]+)/);
var touchpad = webos && ua.match(/TouchPad/);
var kindle = ua.match(/Kindle\/([\d.]+)/);
var silk = ua.match(/Silk\/([\d._]+)/);
var blackberry = ua.match(/(BlackBerry).*Version\/([\d.]+)/);
var bb10 = ua.match(/(BB10).*Version\/([\d.]+)/);
var rimtabletos = ua.match(/(RIM\sTablet\sOS)\s([\d.]+)/);
var playbook = ua.match(/PlayBook/);
var chrome = ua.match(/Chrome\/([\d.]+)/) || ua.match(/CriOS\/([\d.]+)/);
var firefox = ua.match(/Firefox\/([\d.]+)/);
var ie = ua.match(/MSIE ([\d.]+)/);
var safari = webkit && ua.match(/Mobile\//) && !chrome;
var webview = ua.match(/(iPhone|iPod|iPad).*AppleWebKit(?!.*Safari)/) && !chrome;
var ie = ua.match(/MSIE\s([\d.]+)/);

if (browser.webkit = !!webkit) browser.version = webkit[1];

if (android) os.android = true, os.version = android[2];
if (iphone && !ipod) os.ios = os.iphone = true, os.version = iphone[2].replace(/_/g, '.');
if (ipad) os.ios = os.ipad = true, os.version = ipad[2].replace(/_/g, '.');
if (ipod) os.ios = os.ipod = true, os.version = ipod[3] ? ipod[3].replace(/_/g, '.') : null;
if (webos) os.webos = true, os.version = webos[2];
if (touchpad) os.touchpad = true;
if (blackberry) os.blackberry = true, os.version = blackberry[2];
if (bb10) os.bb10 = true, os.version = bb10[2];
if (rimtabletos) os.rimtabletos = true, os.version = rimtabletos[2];
if (playbook) browser.playbook = true;
if (kindle) os.kindle = true, os.version = kindle[1];
if (silk) browser.silk = true, browser.version = silk[1];
if (!silk && os.android && ua.match(/Kindle Fire/)) browser.silk = true;
if (chrome) browser.chrome = true, browser.version = chrome[1];
if (firefox) browser.firefox = true, browser.version = firefox[1];
if (ie) browser.ie = true, browser.version = ie[1];
if (safari && (ua.match(/Safari/) || !!os.ios)) browser.safari = true;
if (webview) browser.webview = true;
if (ie) browser.ie = true, browser.version = ie[1];

os.tablet = !!(ipad || playbook || (android && !ua.match(/Mobile/)) ||
(firefox && ua.match(/Tablet/)) || (ie && !ua.match(/Phone/) && ua.match(/Touch/)));
os.phone = !!(!os.tablet && !os.ipod && (android || iphone || webos || blackberry || bb10 ||
(chrome && ua.match(/Android/)) || (chrome && ua.match(/CriOS\/([\d.]+)/)) ||
(firefox && ua.match(/Mobile/)) || (ie && ua.match(/Touch/))));

return {
browser: browser,
os: os
};
}

var detectObj =  detect(navigator.userAgent);