Solution to jquery plug-in: TypeError: $. browserisundefined error _ jquery

This article shares a solution to the jquery plug-in: TypeError: $. browserisundefined error. The solution to the error is also very simple. Do not miss this article if you need to solve this problem. First, let's talk about $. Browser
Browser is used to obtain basic information about the browser.
JQuery removed $. browser and $. browser. version from version 1.9 and replaced it with $. support. In the latest version 2.0, IE 6/7/8 is no longer supported. Later, if you need to support IE 6/7/8, you can only use jQuery 1.9.
Solution: Add the following JavaScript code.

(function(jQuery){   if(jQuery.browser) return;   jQuery.browser = {};  jQuery.browser.mozilla = false;  jQuery.browser.webkit = false;  jQuery.browser.opera = false;  jQuery.browser.msie = false;   var nAgt = navigator.userAgent;  jQuery.browser.name = navigator.appName;  jQuery.browser.fullVersion = ''+parseFloat(navigator.appVersion);  jQuery.browser.majorVersion = parseInt(navigator.appVersion,10);  var nameOffset,verOffset,ix;   // In Opera, the true version is after "Opera" or after "Version"  if ((verOffset=nAgt.indexOf("Opera"))!=-1) {  jQuery.browser.opera = true;  jQuery.browser.name = "Opera";  jQuery.browser.fullVersion = nAgt.substring(verOffset+6);  if ((verOffset=nAgt.indexOf("Version"))!=-1)  jQuery.browser.fullVersion = nAgt.substring(verOffset+8);  }  // In MSIE, the true version is after "MSIE" in userAgent  else if ((verOffset=nAgt.indexOf("MSIE"))!=-1) {  jQuery.browser.msie = true;  jQuery.browser.name = "Microsoft Internet Explorer";  jQuery.browser.fullVersion = nAgt.substring(verOffset+5);  }  // In Chrome, the true version is after "Chrome"  else if ((verOffset=nAgt.indexOf("Chrome"))!=-1) {  jQuery.browser.webkit = true;  jQuery.browser.name = "Chrome";  jQuery.browser.fullVersion = nAgt.substring(verOffset+7);  }  // In Safari, the true version is after "Safari" or after "Version"  else if ((verOffset=nAgt.indexOf("Safari"))!=-1) {  jQuery.browser.webkit = true;  jQuery.browser.name = "Safari";  jQuery.browser.fullVersion = nAgt.substring(verOffset+7);  if ((verOffset=nAgt.indexOf("Version"))!=-1)  jQuery.browser.fullVersion = nAgt.substring(verOffset+8);  }  // In Firefox, the true version is after "Firefox"  else if ((verOffset=nAgt.indexOf("Firefox"))!=-1) {  jQuery.browser.mozilla = true;  jQuery.browser.name = "Firefox";  jQuery.browser.fullVersion = nAgt.substring(verOffset+8);  }  // In most other browsers, "name/version" is at the end of userAgent  else if ( (nameOffset=nAgt.lastIndexOf(' ')+1) <  (verOffset=nAgt.lastIndexOf('/')) )  {  jQuery.browser.name = nAgt.substring(nameOffset,verOffset);  jQuery.browser.fullVersion = nAgt.substring(verOffset+1);  if (jQuery.browser.name.toLowerCase()==jQuery.browser.name.toUpperCase()) {  jQuery.browser.name = navigator.appName;  }  }  // trim the fullVersion string at semicolon/space if present  if ((ix=jQuery.browser.fullVersion.indexOf(";"))!=-1)  jQuery.browser.fullVersion=jQuery.browser.fullVersion.substring(0,ix);  if ((ix=jQuery.browser.fullVersion.indexOf(" "))!=-1)  jQuery.browser.fullVersion=jQuery.browser.fullVersion.substring(0,ix);   jQuery.browser.majorVersion = parseInt(''+jQuery.browser.fullVersion,10);  if (isNaN(jQuery.browser.majorVersion)) {  jQuery.browser.fullVersion = ''+parseFloat(navigator.appVersion);  jQuery.browser.majorVersion = parseInt(navigator.appVersion,10);  }  jQuery.browser.version = jQuery.browser.majorVersion;  })(jQuery);  

Save the above js as browser. js and introduce it in jsp.

This is a solution that I have found in my editor. I have not conducted any experiments yet. I would like to share it with you first. I hope you will gain some benefits in solving the errors reported by the jquery plug-in.