[Solved] How do I use JQuery in my Javascript?

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JQuery is a JavaScript Library. It simplifies JavaScript programming. It is a lightweight. It 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. It also simplifies a lot of the complicated things from JavaScript, like AJAX calls and DOM manipulation.

The jQuery library contains the following features:

  • HTML/DOM manipulation
  • CSS manipulation
  • HTML event methods
  • Effects and animations
  • AJAX
  • Utilities

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).

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

<head>
<script src="https://stackoverflow.com/questions/40409660/jquery-3.1.1.min.js"></script>
</head>

jQuery CDN

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.

To use jQuery from Google or Microsoft, use one of the following:

Google CDN:

<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.1/jquery.min.js"></script>
</head>

Microsoft CDN:

<head>
<script src="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.1.1.min.js"></script>
</head>

One big advantage of using the hosted jQuery from Google or Microsoft:

Many users already have downloaded jQuery from Google or Microsoft when visiting another site. As a result, it will be loaded from cache when they visit your site, which leads to 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.

You can learn more about JQuery from http://www.w3schools.com/jquery/default.asp

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solved How do I use JQuery in my Javascript?