How to load jQuery locally when CDN fails?
Answer / chaitanya
It is a good approach to always use CDN but sometimes what if the CDN is down (rare possibility though) but you never know in this world as anything can happen.
Below given jQuery code checks whether jQuery is loaded from Google CDN or not, if not then it references the jQuery.js file from your folder.
Hide Copy Code
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<script type="text/javascript">
if (typeof jQuery == 'undefined')
{
document.write(unescape("%3Cscript src='Scripts/jquery.1.9.1.min.js' type='text/javascript'%3E%3C/script%3E"));
}
</script>
It first loads the jQuery from Google CDN and then check the jQuery object. If jQuery is not loaded successfully then it will references the jQuery.js file from hard drive location. In this example, the jQuery.js is loaded from Scripts folder.
| Is This Answer Correct ? | 0 Yes | 0 No |
How to multiple AJAX requests be run simultaneously in jQuery?
Whether C# code behind can be called from jQuery?
What is the use of css() method in jquery?
Explain animate function in jquery?
What is a cdn? What are the advantages of using cdn?
How do you select an item using css class or id and get the value by use of jquery.
Is jquery a library for client scripting or server scripting? : jquery mobile
What is the name of jquery method used for an asynchronous http request?
Explain various methods to make ajax request in jquery? : jquery mobile
Explain cdn in jquery?
What does dollar sign ($) means in jquery? : jquery mobile
How do I check if an HTML element is empty using jQuery?