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hced on 12/17/10


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http javascript js google script jquery load api https Linking CDN libs bestpractice ajaxapi


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Proper way of loading jQuery from Google's CDN with fallback to local lib if necessary


 / Published in: HTML
 

URL: http://code.google.com/intl/en-US/apis/libraries/devguide.html

Proper way of loading libs such as jQuery from Google's CDN. Place these JavaScripts at the bottom for fast page loading. To target different versions, you can be more specific if you want; eg. /1.4/ or even /1.4.4/.

(NOTE: you may either use http:// or https:// depending on your needs. Both will work.)

  1. <!-- Load jQuery from Google's CDN -->
  2. <script src="//ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.js"></script>
  3. <!-- Fall back to local lib if loading from Google's CDN fails -->
  4. <script>!window.jQuery && document.write(unescape('%3Cscript src="js/libs/jquery-1.4.4.js"%3E%3C/script%3E'))</script>

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