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This article mainly introduces the advantages and disadvantages of Ajax, the article is very detailed, has a certain reference value, interested friends must read it!

Ajax, whose full name is Asynchronous Javascript and XML, is a dynamic WEB application development technology, which enriches the user's experience. Even WEB applications developed with Ajax can achieve the experience of desktop applications. Of course, like other technologies, Ajax also has its own advantages and disadvantages.

Advantages of using Ajax

1. Enhance user experienc

Improving the user experience is one of the most important reasons for using Ajax. Ajax allows Web pages to request a small amount of data from the server to achieve continuous updates, which allows you to refresh only part of the page without reloading the entire page. Traditional WEB pages achieve the effect of updating page data by reloading the entire page, even if there is little data to update. So the use of Ajax improves the performance of the browser and greatly improves the speed of browsing through this responsive user experience.

two。 Improve work efficiency

Ajax class libraries provide a lot of auxiliary functions for object-oriented patterns, which greatly improve the speed of development and reduce the obstacles encountered in the development process. In addition, many mature frameworks have their own data layer, business layer and view layer, so Ajax only needs a specific Ajax service and some improvements on the client side to achieve the desired functions. The architecture in this way reduces the time spent on program deployment and improves the productivity of developers.

3. Reduced bandwidth usage and increased access speed

Ajax uses client script to interact with the Web server and uses javascript to exchange data. Using Ajax can reduce the load on the network, reduce the use of bandwidth, and request only the data needed, all of which are necessary to speed up response time. If the response time is shortened, the performance and speed will naturally be greatly improved.

4. Good compatibility

Because Ajax is a client-side technology, Ajax server can be implemented for commonly used server-side programming languages, such as PHP, Java, ASP.NET, node.js and so on. And almost all browsers support Ajax.

5. Support for asynchronous processing

Getting data asynchronously through the use of XmlHttpRequest is the main feature of Ajax. Before the request is executed, the program can continue to execute downward and perform the corresponding operation after the request is returned. Such a mechanism is the main reason to improve the performance of Web.

6. Make it easier to switch page content

Ajax makes it easier and more intuitive to switch between different content, and users no longer need to use the traditional back and forward buttons on the browser to achieve the forward and backward functions of the page.

Disadvantages of using Ajax

1. Incompatibility between browsers

Ajax is highly dependent on Javascript, so its implementation varies from browser to browser. This means that if you want to implement Ajax across browsers, you must deal with it accordingly. If some browsers do not support Javascript or disable this option of Javascript, then this browser does not support Ajax, so the previously written Ajax function cannot be implemented on such browsers. It is precisely because Ajax depends on this feature of Javascript, so Ajax is not suitable for mobile applications.

two。 Unsafe

Because web pages are difficult to debug, as your code increases, your web pages face more and more serious threats.

3. Increased the load of Web server

If you add to your web page the ability to automatically request updates from the server every few seconds, your server will be more and more loaded and may crash.

Yes, since each technology has its advantages over other similar technologies, it will certainly have corresponding shortcomings, as for whether to use it or not depends on our actual project needs, to be measured in the actual work.

These are all the contents of the article "what are the advantages and disadvantages of Ajax?" Thank you for reading! Hope to share the content to help you, more related knowledge, welcome to follow the industry information channel!

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