AJAX, or Asynchronous JavaScript and XML is a client-side script which runs in the users’ web browser. It allows developers to get data from a server, without having to reload the whole page. Only the section of the page that needs to be updated is able to be changed.

AJAX loads content from a web server asynchronously, or ‘in the background’. WordPress uses AJAX to access functions which are only possible to run through PHP.

Dynamic web pages become more like applications, as a lot of processes happen in the background, so the web page appears to not refresh, and the content changes accordingly within the page.

I use AJAX with WordPress to load the content of a WordPress website into the page, based on the user’s actions