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I have a web page that has to be correctly displayed on mobile devices. To do so, i loaded JQuery Mobile script in the page's head. The head tag looks like this:

<head> 
    <title>Page Title</title> 

    <link rel="stylesheet" href="http://code.jquery.com/mobile/1.1.0/jquery.mobile-1.1.0.min.css" />
    <script src="http://code.jquery.com/jquery-1.7.1.min.js"></script>
    <script src="http://code.jquery.com/mobile/1.1.0/jquery.mobile-1.1.0.min.js"></script>
</head>

And used in the page's body elements the data-role attributes to display things. The pages looks quite good on mobile devices, but it looks in a similar way even if the request comes from a non-mobile browser.

I would like to know if someone knows a method to load JQuery Mobile script only if the request comes from a mobile device.

What i've tried so far is to use a function that detectd my user agent and loads the script if it is a mobile device:

function init() {

    if(isMobile()) {
        document.write('<link rel="stylesheet" href="http://code.jquery.com/mobile/1.1.0/jquery.mobile-1.1.0.min.css" />');
document.write('<script src="http://code.jquery.com/jquery-1.7.1.min.js"></script>');
dcument.write('<script src="http://code.jquery.com/mobile/1.1.0/jquery.mobile-1.1.0.min.js"></script>');
    }
}


function isMobile() {

    if(navigator.userAgent.match(/Android/i) || navigator.userAgent.match(/BlackBerry/i) || navigator.userAgent.match(/iPhone|iPad|iPod/i) || navigator.userAgent.match(/IEMobile/i))
            return true;
        return false;
}
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1 Answer

Its hard to detect whether your device is mobile or tablet or huge screen with touch, but to start with

  1. Use script to detect from http://detectmobilebrowsers.com/
  2. Test using http://yepnopejs.com/

Like this (should work for jQuery script from http://detectmobilebrowsers.com/) :

yepnope({
  test : jQuery.browser.mobile,
  yep  : 'mobile_specific.js',
  nope : ['normal.js','blah.js']
});

EDIT:

Also have a look at https://github.com/borismus/device.js, for loading content based on conditions. I am not sure whether it will allow you to load conditional JS files.


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