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This article will explain in detail what the main implementation of ajax is, and the editor thinks it is very practical, so I share it with you as a reference. I hope you can get something after reading this article.

Ajax mainly realizes the asynchronous transmission of data between the page and the web server. Ajax refers to a technology that can update part of the web page without reloading the whole web page.

Operating environment of this article: Windows7 system, javascript1.8.5, DELL G3 computer

What is the main implementation of ajax?

Ajax mainly realizes the asynchronous transmission of data between the page and the web server.

Ajax, namely "Asynchronous Javascript And XML" (Asynchronous JavaScript and XML), refers to a web page development technology that creates interactive web page applications. Ajax = Asynchronous JavaScript and XML or HTML (a subset of the standard generic markup language). Ajax is a technology for creating fast dynamic web pages.

Ajax is a technology that can update parts of a web page without reloading the entire page. By exchanging a small amount of data with the server in the background, Ajax can update web pages asynchronously. This means that some part of the page can be updated without reloading the entire page. Traditional web pages (without Ajax) if you need to update the content, you must reload the entire web page.

For a simple example, a page without ajax will refresh the entire page when the user initiates a request on the page, depending on the processing speed of the server. In this process, the user must wait and cannot do anything else. Which is the way to synchronize. The client and the server pass a lot of unneeded data. Low efficiency and poor user experience. Using the ajax page, you can achieve the partial update of the page, rather than the whole page update; and after initiating the request, the user can also carry out other operations on the page. This is how it works asynchronously. Only the required data is transmitted between the client and the server, which has high efficiency and good user experience.

Ajax is mainly used in the development of websites, an obvious feature is local refresh, that is, when you execute a small part of the page, you do not have to submit the entire page, you only need to submit the local information of the page you changed.

Extended data:

1. Ajax development mode:

Many important technologies and Ajax development patterns can be learned from existing knowledge. For example, in an application that sends requests to the server, it must include request order, priority, timeout response, error handling, and callbacks, many of which are already included in the Web service. At the same time, as the technology matures, there will be many areas for improvement, especially the ease of use of the UI part.

The development of Ajax is very different from the traditional development of Bamp S. These differences introduce new programming problems, the biggest of which is ease of use. Because Ajax relies on the browser's JavaScript and XML, browser compatibility and supported standards have become as important as the runtime performance of JavaScript. Most of these problems come from a combination of browsers, servers, and technologies, so you must understand how to make the best use of these technologies.

Combining various changing technologies and strongly coupled customer service environment, Ajax puts forward a new development method. Ajax developers must understand the traditional MVC architecture, which limits the boundaries between application layers. At the same time, developers also need to consider the external aspects of the Bamp S environment and use Ajax technology to redefine MVC boundaries. Most importantly, Ajax developers must prevent Web applications from being considered as a collection of pages and need to think of them as a single page. Once the scope between UI design and service architecture is strictly separated, developers need to update and change the set of technologies.

2. Advantages of ajax:

The biggest advantage of using Ajax is that you can maintain data without updating the entire page. This allows Web applications to respond more quickly to user actions and avoids sending messages that have not changed over the network.

Ajax does not require any browser plug-ins, but requires the user to allow JavaScript to execute on the browser. Just like DHTML applications, Ajax applications must be rigorously tested on many different browsers and platforms. With the maturity of Ajax, some libraries that simplify the use of Ajax have come out one after another. Similarly, another programming aid technology has emerged to provide alternative functionality for users who do not support JavaScript.

This is the end of this article on "what has been achieved by ajax?". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, please share it for more people to see.

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