The jquery plug in recommends that browsers sniff the userAgent

Comprehensive overview

compatibility

IE6+, Chrome, Firefox, Safari, Opera

Frame dependence

Used to introduce

1. Identify the engine and give the following examples:

// if the browser is webkit core, execute the following code
If (!!!!! Client. Engine. Its) {
      / / todo
}
2. Identify the browser and give the following examples:

  // if it is Internet explorer and the version of Internet explorer is 6,   Execute the following code
  If (!!!!! Client. Browser. Ie == 6){
          / / todo
  }  
3. Identification of operating system and examples are as follows:

  // if Windows 7, execute the following code
  If (!!!!! Client. System. Win && client. System. Win == 7){
      / / todo
  }
Download link

(link: https://github.com/hehongwei44/userAgent)

Authorization information

Authorization type: MIT

Authorization type information: (link: https://github.com/hehongwei44/userAgent/blob/master/LICENSE)

Change log

(link: https://github.com/hehongwei44/userAgent/blob/master/ChangeLog.md)

Other supplementary

A very good plug-in, worth recommending