AJAX is a term that describes how to use existing technology to receive data from the server in the background and use it to update the page (without reloading).
Page reloading is a big hurdle in Web application development for Java developers.
AJAX is an acronym that stands for Asynchronous Javascript and XML. In fact, AJAX is not a new technology, because both Javascript and XML have existed for quite some time
The pages on your site contain many specialized terms. When a user browses your site, they may have questions about these terms.
I’ll start at the beginning: creating an XMLHttpRequest and sending it from the browser. Unfortunately, the method of creating an XMLHttpRequest varies from browser to browser
One of the important challenges facing Ajax developers is how to respond when an XMLHttpRequest is not available. While most modern browsers support XMLHttpRequest
In order to exchange data, the page must create an XMLHttpRequest object, which is a kind of intermediary between the user’s browser and the server.
The key technology for creating user interfaces for embedded devices today is the creation of WEB-applications.
Joomla 3.x has a new component called com_ajax. Which is a thin, extensible component used as a starting point for HTTP requests from modules and plugins.
Using AJAX can both speed up site loading and make the interface more responsive. The following list of recommendations will help you achieve this.
When properly implemented AJAX can reduce the load on the server several times. In particular, all pages of the site are often generated by the same template, including fixed elements ("header", "navigation bar", "basement", etc.), for the generation of which requires recourse to different files
For example, when you enter a search query on Google, a tooltip with possible variants of the query is displayed. On many sites when registering a user enters a name and immediately sees whether that name is available or not.
Since it is much faster to load the changed part, the user sees the result of his actions faster and without flickering of the page (which occurs at full reloading).
The page is not reloaded, the player continues to work. That's why AJAX is valuable on audio and video hosting sites. For example, YouTube for 2021 allows you to play video in picture-in-picture mode.
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Ajax was originally an acronym for asynchronous JavaScript and XML. “Asynchronous” means that multiple events occur independently of each other.
AJAX uses several technologies: the Dynamic HTML approach for constantly changing the content of a web page, and several technologies for dynamically addressing the server.
We will use the jQuery library to demonstrate this. I assume that you know the basics of the jQuery library.