JavaScript Learning notes the detection client type is (engine, browser, platform, operating system, mobile device) _javascript tips

Gets the user agent string and all lowercase.
var ua = Navigator.userAgent.toLowerCase ();
document.write (UA);

In the previous article, we introduced the browser rendering engine, platform, Windows operating system, mobile device and game system based on JavaScript code detection Access Web page

, interested friends can click the full text to learn more details.

1. Identify the rendering engine

The main engine contains four kinds: IE, Gecko, WebKit, Opera

2, identify the browser

Mainstream browser contains four kinds: IE, Chrome, Firefox, Opera

3. Recognition platform

The mainstream platform includes three categories: Windows, Mac, Unix

4. Identify Windows operating system

Windows 98, Window NT, Window XP, Window Vista, Windows 7 ...

5. Identify mobile devices

Mainstream mobile devices include three categories: IPhone, IPod, Anroid, Nokia

6, identify the game system.

The mainstream game system includes two kinds: Wii, PS3.

On-line discovery of a relatively simple code of Distinction:

Javascript

var ua = Navigator.userAgent.toLowerCase (); var isstrict = Document.compatmode = = "Css1compat" Isopera = Ua.indexof ("opera") >-1 ischrome = Ua.indexof ("Chrome") & Gt
-1 Issafari =!ischrome && (/webkit|khtml/). Test (UA) IsSafari3 = Issafari && ua.indexof (' WEBKIT/5 ')!=-1 Isie =!isopera && ua.indexof ("MSIE") >-1 isIE7 =!isopera && ua.indexof ("MSIE 7") >-1 isIE8 =!is  Opera && ua.indexof ("MSIE 8") >-1 Isgecko =!issafari &&!ischrome && ua.indexof ("Gecko") > -1 IsGecko3 = Isgecko && ua.indexof ("rv:1.9") >-1 isborderbox = Isie &&!isstrict isWin7 = Ua.indexo F ("NT 6.1") >-1 Isvista = Ua.indexof ("NT 6.0") >-1 isWin2003 = Ua.indexof ("NT 5.2") >-1 ISWINXP = Ua.indexof (" NT 5.1 ") > 1 isWin2000 = Ua.indexof (" NT 5.0 ") >-1 iswindows = (Ua.indexof (" Windows ")!=-1 | | ua.indexof (" Win32 ") !=-1) Ismac = (ua.indexof ("Macintosh")!=-1 | | ua.indexof ("Mac OS X")!=-1) Isair = (Ua.indexoF ("Adobeair")!=-1) Islinux = (Ua.indexof ("Linux")!=-1) var sys = ""; 
var broser = ""; if (Isie) {broser = "IE 6";} else if (isIE7) {broser = "IE 7";} else if (isIE8) {broser = "IE 8";} else if (isopera) {broser = "Opera";} else if (ischrome) {broser = "Chrome";} else if (Issafari) {broser = "Safari";} else if (isSafari3) {broser = "Safari3";} 
else{broser = "Unknow";} if (isWin7) {sys = "Windows 7";} else if (isvista) {sys = "Vista";} else if (ISWINXP) {sys = "Windows XP";} else if (isWin2003) {sys = "Windows 2003";} else if (isWin2000) {sys = "Windows 2000";} else if (iswindows) {sys = "Windows";} else if (ISMAC) {sys = "Macintosh";} else if (isair) {sys = ' adobeair ';} else if (islinux) {sys = "Linux";}
else{sys = "Unknow";} document.write (UA); Alert (sys + ":" + broser);

More comprehensive Code of Distinction:

Javascript

var client = function () {//render engine var engine = {ie:0, gecko:0, webkit:0, khtml:0, opera:0,//full version number ver
: null};   Browser var browser = {//main browser ie:0, firefox:0, konq:0, opera:0, chrome:0, safari:0,//Specific version number ver
: null};  platforms, devices and operating systems VAR system ={Win:false, Mac:false, Xll:false,//Mobile devices Iphone:false, Ipod:false, Nokian:
False, Winmobile:false, Macmobile:false,//Game device Wii:false, ps:false};
Detection rendering engine and browser 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["$"];
 Engine.webkit = parsefloat (engine.ver);
 Determine if Chrome or Safari if (/chrome\/(\s+)/.test (UA)) {Browser.ver = regexp["$"];
 Browser.chrome = parsefloat (browser.ver);
 else if (/version\/(\s+)/.test (UA)) {Browser.ver = regexp["$"];
 Browser.safari = parsefloat (browser.ver); } else {//Approximately determine the version number var safariversion = 1;
 if (Engine.webkit < MB) {safariversion = 1;
 else if (Engine.webkit < 312) {safariversion = 1.2;
 else if (Engine.webkit < 412) {safariversion = 1.3;
 else {safariversion = 2; 
 } Browser.safari = Browser.ver = safariversion; } else if (/khtml\/(\s+)/.test (UA) | |/konquersor\/([^;]
 +)/.test (UA)) {engine.ver = Browser.ver = regexp["$"]; 
engine.khtml = Browser.kong = Paresfloat (engine.ver);
 else if (/rv: ([^\)]+) \ gecko\/\d{8}/.test (UA)) {Engine.ver = regexp["$"] Engine.gecko = parsefloat (engine.ver);
 Determine if the Firefox if (/firefox\/(\s+)/.test (UA)) {Browser.ver = regexp["$"];
 Browser.firefox = Paresefloat (browser.ver); } else if (/msie ([^;]
 +)/.test (UA)) {Browser.ver = regexp["$"];
Browser.firefox = parsefloat (browser.ver);
}//Detect browser browser.ie = engine.ie;
Browser.opera = Engine.opera;
Detection platform var p = navigator.platform;
System.win = P.indexof ("win") = = 0;
System.mac = P.indexof ("mac") = = 0; system.x11 = (p = = "X11") | |
(P.indexof ("Linux") = = 0); Detects the Windows operating system if (System.win) {if (/win) {if (?:d OMS)? ( [^do] {2}) \s?
   (\d+\.\d+)/.test (UA)) {if (regexp["$" = = "NT") {switch (regexp["$"]) {case "5.0": System.win = "2000";
  Break
   Case "5.1": System.win = "XP";
  Break
   Case "6.0": System.win = "Vista";
  Break
   Default:system.win = "NT";  
  Break
 else if (regexp["$") {System.win = "ME";
 else {System.win = regexp["$"];
}}//mobile device System.iphone = Ua.indexof ("iphone") >-1;
System.ipod = Ua.indexof ("ipod") >-1;
System.nokian = Ua.indexof ("Nokian") >-1;
System.winmobile = (System.win = = "CE");
System.macmobile = (System.iphone | | system.ipod);
Game system system.wii = Ua.indexof ("Wii") >-1;
system.ps =/playstation/i.test (UA);
Returns these objects return {engine:engine, browser:browser, System:system}; }()

The above is a small set to introduce the JavaScript learning notes of the detection client type is (engine, browser, platform, operating system, mobile device) All the description, I hope you like.