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In order to use jQuery, do I have to use the following reference in my html?
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.5/jquery.min.js"></script>
What if my server does not have an internet connection?
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Step 1: Firstly, we have to open that Html file in which we want to add the jQuery using CDN. Step 2: After then, we have to place the cursor between the head tag just before the title tag. And, then we have to use the <script> tag, which specify the src attribute for adding.
You can write it directly to the HTML doc inside <script> tags or link with <script src="javascript. js"></script> .
jQuery is a JavaScript file that you will link to in your HTML.
The purpose of jQuery is to make it much easier to use JavaScript on your website. jQuery takes a lot of common tasks that require many lines of JavaScript code to accomplish, and wraps them into methods that you can call with a single line of code.
Use this code:
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">window.jQuery || document.write('<script src="/res/jQuery/jquery-1.7.1.min.js"> \x3C/script>');</script>
This will try to download from the CDN, or otherwise use the local one. You must download the local one first though.
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It will not work if you don't have internet connection.
To work locally you should copy jquery.js to your local directory and give relative path.
<script src="/jquery/1.5/jquery.min.js"></script>
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