1. What is J Query?
It is a JavaScript library.
There are a lots of other JavaScript frameworks out there, but jQuery seems to be the most popular, and also the most extendable.
2. Purpose of J Query?
Purpose is to make it much easier to use JavaScript on your website.
JQuery also simplifies - complicated things from JavaScript, like AJAX calls and DOM manipulation.
3.J Query library features:
- HTML/DOM manipulation
- CSS manipulation
- HTML event methods
- Effects and animations
- AJAX
- Utilities
Method 1 : Download the jQuery library from jQuery.com
- Two versions of J query to Download
- Production Version - This is for the live environment.
- Development Version - This is for the development and Testing environment.
<head>
<script src="jquery-1.10.2.min.js"></script>
</head>
"text/javascript" is not inside the <script> tag because JavaScript is the default scripting language in HTML5 and in all modern browsers.so this is not required in HTML5.
Method 2 :Include jQuery from a CDN. (This will help the faster loading)
If you don't want to download and host jQuery yourself, you can include it from a CDN (Content Delivery Network).
Both Google and Microsoft host jQuery.
Google CDN
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js">
</script>
</head
Microsoft CDN
<head>
<script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.10.2.min.js">
</script>
</head>
<script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.10.2.min.js">
</script>
</head>
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