browser is used to get the basic information of the browser.
Since jQuery version 1.9, $.browser and $.browser.version have been removed and replaced by $.support. In the updated 2.0 version, IE 6/7/8 will no longer be supported. In the future, if users need to support IE 6/7/8, they can only use jquery 1.9.
The solution is
to add the following js
(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);