Question

I want to test if IE is version 7 or 8 and if it is prevent a specific piece of code running?

I’ve tried the following code but this doesnt seem to work:

if($.browser.msie && parseInt($.browser.version, 10) <= 8) {
        $(document).on('mouseenter', '.thumb', function () {
          $(this).find('.bgg').stop().animate({ opacity : 1 });
        });

        $(document).on('mouseleave', '.thumb', function () {
          $(this).find('.bg').stop().animate({ opacity : .5 });
        });
      }

Ideally I really dont want to use this kind of detection but in this case it has to be used.

Answer 1

I’ve had to UA sniff for IE in my projects due to the requirement of having only one script file. We don’t want the extra http request that @Kolink’s method requires, nor do we want to split functionality. For that I would simply use:

var ltie9 = $.browser.msie && parseInt($.browser.version, 10) < 9;

and then do whatever you want by using:

if (ltie9) { ... }

I’ve got a jsFiddle that shows several different IE detections up to IE10 just to demonstrate.