THE BEST: 06/28/22

Adding jQuery to Your Web Pages

There are several ways to start using jQuery on your website. You can:

Download the jQuery library from jQuery.com
Include jQuery from a CDN, like Google

Downloading jQuery

There are two versions of jQuery available for downloading:

Production version - this is for your live website because it has been minified and compressed
Development version - this is for testing and development (uncompressed and readable code)

Both versions can be downloaded from jQuery.com.

The jQuery library is a single JavaScript file, and you reference it with the HTML <script> tag (notice that the <script>tag should be inside the <head> section):

<head>
<script src="jquery-3.6.0.min.js"></script>
</head>

Tip: Place the downloaded file in the same directory as the pages where you wish to use it.

jQuery CDN

If you don't want to download and host jQuery yourself, you can include it from a CDN (Content Delivery Network).

Google is an example of someone who hosts jQuery:

Google CDN:

<!DOCTYPE html>

<html>

<head>

<script>
$(document).ready(function(){
$("button").click(function(){
$("p").hide();
});
});
</script>

</head>

<body>

<h2>This is a heading</h2>
<p>This is a paragraph.</p>
<p>This is another paragraph.</p>
<button>Click me</button>

</body>

</html>

---------------------------------

RESULT:

This is a heading

This is a paragraph.

This is another paragraph.

********************

One big advantage of using the hosted jQuery from Google:

Many users already have downloaded jQuery from Google when visiting another site. As a result, it will be loaded from the cache when they visit your site, which leads to a faster loading time. Also, most CDN's will make sure that once a user requests a file from it, it will be served from the server closest to them, which also leads to faster loading time.

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jQuery Syntax

Adding jQuery