check browser version

How to determine the browser version and the browser kernel using js This article mainly introduces how to judge the browser version and kernel of the browser by js, which can be used for judgment of various browsers and has some reference value.

This article mainly introduces how to judge the browser version and kernel of the browser by js, which can be used for judgment on various browsers and has some reference value, for more information about how to determine the browser version and the

This article mainly introduces how to judge the browser version and kernel of the browser by js, which can be used for judgment on various browsers and has some reference value, for more information about how to determine the browser version and the

Determine the browser version and the browser kernel, and determine the browser kernel If (! Browser. ie &&! Browser. mac) {var UA = navigator. userAgent. toLowerCase (). toString (); // determines whether it is a non-IE version in the IE kernel if (

In the front-end development of the Web site, browser compatibility problem has let us rush, the birth of Chrome did not know to give us a lot of trouble. Browser compatibility is the first problem to be solved by the front-end development framework,

Today's project needs to customize the style of the drop-down box and introduce the plug-in. As a result, Firefox compatibility problems have emerged. I 'd like to say that I have never known it was a problem with Firefox, I always thought that my

Use conditional comments to determine the browser version, solve compatibility issues, and comment out the browser version We should have encountered many browser compatibility problems. When writing some pages, it may be good on IE8 and IE9, when

The lowercase information of the UserAgent property of the Navigator object is obtained first, and then the assignment is evaluated according to the regular expression.var Sys = {};var ua = Navigator.userAgent.toLowerCase (); var s;var scan; (s = Ua.

The lowercase information for the UserAgent property of the Navigator object is obtained first, and then the value is inferred from the regular table.var Sys = {};var ua = Navigator.userAgent.toLowerCase (); var s;var scan; (s = Ua.match (/msie ([\d.

The httpservlet class defines a getlastmodified method. Its complete syntax is defined as follows: Protected long getlastmodified (httpservletrequest req) The returned value indicates the number of milliseconds that have been calculated since 00:00:0