jquery $.browser to determine the browser instance

Let's look at the source of jquery:

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var useragent = Navigator.userAgent.toLowerCase (); Figure out what browser is being used Jquery.browser = { Version: (Useragent.match (/.+ (?: Rv|it|ra|ie) [/:] ([D.] +)/ ) || []) [1], Safari:/webkit/.test (useragent), Opera:/opera/.test (useragent), MSIE:/msie/.test (useragent) &&!/opera/.test (useragent), Mozilla:/mozilla/.test (useragent) &&!/(Compatible|webkit)/.test (useragent) };

Test usage

$.browser. [' Browser keyword ']

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$ (function () { if ($.browser.msie) { Alert ("This is Msie"); } else if ($.browser.safari) { Alert ("This is safari!"); } else if ($.browser.mozilla) { Alert ("This is mozilla!"); } else if ($.browser.opera) { Alert ("This is opera"); } else { Alert ("I don ' t konw!"); }

If the above browser is not enough to judge, we can write by ourselves Oh, the method is also very simple to add your browser name to the jquery function.

If you want to judge IE6 we can do the following

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$.browser.msie&& ($.browser.version = = "6.0") &&!$.support.style

Other if ie6,7,8,9,10 can operate this way I will not be introduced here.