ajax

The term ajax has multiple uses, although it is not part of the dictionary that elaborates the Royal Spanish Academy (RAE). It could be, for example, the name of a famous team of football Dutch.

The Amsterdamsche Football Club Ajax, which is usually named as Ajax, Had his Foundation on 1900. The whole competes in the First division of the tournament Holland, where he has won more than thirty trophies. He was even consecrated European champion on several occasions.

Johan cruyff, Frank Rijkaard, Marco van Basten, Ronald Y Frank de Boer, Dennis Bergkamp, Patrick Kluivert, Clarence seedorf, Marc overmars Y Edgar davids are some of the great footballers who have worn the jersey of the Ajax.

When the concept is written in capital letters (AJAX), It's about a acronym which, in Spanish, refers to the expression "Asynchronous JavaScript and XML". AJAX, within this framework, is a technique used in the field of computing for the development of interactive web applications. The AJAX applications have the particularity of running in the browser of Internet, simultaneously with the communication between the browser and the server that takes place in the background.

It is important to understand that AJAX is not a single technology, but a combination of several, and that has existed for many years. Among the languages ​​that are merged into AJAX programming are XML, Javascript, HTML, and CSS.

Thanks to an implementation of this type we can achieve results of a dynamism impossible with HTML alone, for example. The secret is that, unlike an old website, in which once a page is finished loading on the client's computer it no longer downloads information from the server, AJAX is able to maintain constant communication without Refresh the page completely, as if it were a silent update of contents.

Let's see below the explanation of each of the parts of this acronym:

* "Asynchronous" refers to the fact that since the client requests information to the server until the response arrives, the page does not stop working, but the experience continues normally and, in general, the user can continue interacting with the rest of the elements, even canceling their request (for example, closing a box pop-up in which the communication status was displayed). As soon as the exchange between the server and the client is finished, a response is prepared "behind the scenes", which finally generates the desired change in the content (for example, going from the section "News" to "Store");

* "Javascript" is the language used to instantiate a answer AJAX type, parses its content and finally updates the SUN (the "Document Object Model", that is, the interface with which the representation of web, XML and XHTML documents is possible);

* to carry out the request to server, the client uses the XMLHttpRequest or XHR API. An API ("Application Programming Interface") is a series of methods used to specify the rules of communication between two parties. It is important to note that the response is not required to be in XML, but it can be in any format.

With a check mark in the first TO (Ajax), the term refers to two different characters from the mythology of the Ancient Greece: Ajax (or Ajax) the big one, the son of Peribea Y Telamon; Y Ajax (or Ajax) the younger, descendant of Oileo.

A genre of plants, a model of boats and one brand of chemicals used for cleaning also share the name of ajax.