Ajax summary, jqueryajax notes Summary

Ajax summary, jqueryajax notes Summary

Ajax has been learned for a long time and has not been summarized. I feel that I have not learned a lot. Not clear enough. However, you must sum up what you have learned so that new discoveries can be made.

Ajax is Asynchronous Javascript And XML (Asynchronous JavaScript And XML), which is a Web development technology used to create interactive web applications. But why should we introduce Ajax technology? It must be different from the traditional Web development method, so the following comparison:

1. User Experience:

2. Application Model:

3. Advantages

Since Ajax technology is used, it certainly has advantages over traditional web development.

(1) The biggest difference is that the page is refreshed and communicates with the server on the page, providing a good user experience.

(2) Use an Asynchronous Method to communicate with the server, without interrupting user operations, and have a more rapid response capability.

(3) some previous server workload can be transferred to the client, and the client's idle capabilities can be used to handle the workload, reduce the workload on the server and width, and save space and high rental costs. And reduce the burden on the server.

(4) based on standardized and widely supported technologies, you do not need to download plug-ins or applets.

4. Technologies Used

The above advantages must be the use of some special means:

(1) The core of Ajax is the JavaScript Object XMLHttpRequest. XmlHttpRequest allows developers to use JavaScript to send requests to the server and process responses without affecting client information communication.

(2) Unlike traditional Web technologies, Ajax uses Asynchronous Interactive Processing technology. Ajax asynchronous processing can process the data submitted by the user in the background. In this way, when the data is changed, the whole page does not need to be reloaded, but only the partial part of the page is refreshed. Reduce pressure and speed up.

Through this data query and summary, I have thoroughly reviewed Ajax and learned a little more about Ajax. The next step is to practice Ajax.

Zookeeper