AJAX VS JQUERY

AJAX

1. AJAX = Asynchronous JavaScript and XML.
2. AJAX is a technique for creating fast and dynamic web pages.
3. AJAX allows web pages to be updated asynchronously by exchanging small amounts of data with the server behind the scenes. This means that it is possible to update parts of a web page, without reloading the whole page.
4. Classic web pages, (which do not use AJAX) must reload the entire page if the content should change.

JQUERY

1. JQuery is a lightweight, "write less, do more", JavaScript library.
2. The purpose of jQuery is to make it much easier to use JavaScript on your website.
3. 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.
4. jQuery also simplifies a lot of the complicated things from JavaScript, like AJAX calls and DOM manipulation.