Dont run a javascript function in IE

Question

How to not run a javascript function in IE.I'm having a number of functions in my javascript file..While i need to stop some script from running in Internet explorer. I know the below code is used to run this script file if not IE..

<script src="script.js"></script>

How can i skip some function in js..like below I tried to skip the method b in IE..but it dont work..

function a{alert(a);}
<!--[if !IE]>
function b{alert(b);}
<![endif]-->
function c{alert(c);}
function d{alert(d);}

but the method b is always called..How can i prevent it from running in IE browsers..

Why modernizer @ShashiBhushan, that it is adding another extra library for something it can work better in pure js ... — Jorge Y. C. Rodriguez
– Jorge Y. C. Rodriguez, Commented Sep 16, 2013 at 10:23
Presumably you want to not run something in IE because it's missing features, or something? The point of using Modernizr is that instead of targeting a particular browser, you base it on available features - so if there are any other smaller browsers that are also missingthose features, then your site doesn't break by making incorrect assumptions. — cloudfeet
– cloudfeet, Commented Sep 16, 2013 at 10:32

Quentin · Accepted Answer · 2013-09-16 10:23:48Z

3

IE10 doesn't support conditional comments.

If you don't want to run a function in some browsers, then suppress it with feature (AKA object) detection, not user agent detection.

answered Sep 16, 2013 at 10:23

Quentin

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Comments

Jorge Y. C. Rodriguez · Accepted Answer · 2013-09-16 10:29:19Z

0

Actually what i do it is a bit nasty, but if there is some functions i don't want to run in IE I add this ::

    <?php if (isset($_SERVER['HTTP_USER_AGENT']) && (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') == false)):?>

       <script src="js/noIEfunctions.js"></script>

    <?php endif;?>

answered Sep 16, 2013 at 10:29

Jorge Y. C. Rodriguez

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2 Comments

EricLaw Over a year ago

FWIW, this code will not work in IE11. User-Agent sniffing is evil and should be avoided.

EricLaw Over a year ago

The IE team took out the MSIE token explicitly to break code that was doing foolish User-Agent detection instead of proper capabilities detection. Many webpages work just fine in IE10 or IE11 but due to outdated UA-string checks the pages weren't working. Hence the change.

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