Let's talk about the advantages and disadvantages of Ajax.

Let's talk about the advantages and disadvantages of Ajax.

Ajax, short for Asynchronous Javascript and XML, is a dynamic WEB application development technology that enriches the user experience. Even WEB applications developed with Ajax can experience desktop applications. Of course, like other technologies, Ajax also has its own advantages and disadvantages.

UseAdvantages of Ajax

1. Improve user experience

Improving user experience is one of the most important reasons for using Ajax. Ajax allows the web page to request a small amount of data from the server for continuous updates. This method can be used to refresh only some pages without reloading the entire page. Traditional WEB pages reload the entire page to update page data, even if few data needs to be updated. Therefore, the use of Ajax improves the browser performance and greatly improves the browsing speed through this Responsive user experience.

2. improve work efficiency

The Ajax Class Library provides many helper functions in the object-oriented mode. These class libraries greatly increase the development speed and reduce the obstacles encountered during the development process. In addition, many mature frameworks have their own data layer, business layer, and view layer. Therefore, Ajax only requires a specific Ajax service and some improvements on the client side to implement the desired functions. This architecture reduces the time spent on program deployment and increases the efficiency of developers.

3. reduced bandwidth usage and improved access speed

Ajax interacts with the Web server using client scripts and uses javascript to exchange data. Ajax can reduce network load, reduce bandwidth usage, and only request required data. These are all necessary factors for accelerating the response time. The response time is shortened, and the performance and speed are naturally greatly improved.

4. Good compatibility

Because Ajax is a client technology, Ajax servers can be implemented for common Server programming languages, such as PHP, Java, ASP. NET, and node. js. And almost all browsers support Ajax.

5. support asynchronous Processing

Using XmlHttpRequest to obtain data asynchronously is the main feature of Ajax. Before the request is executed, the program can continue to perform the following operations. This mechanism is the main reason for improving Web performance.

6. Easier Page Content Switching

Ajax makes switching between different content more simple and intuitive. Users no longer need to use the traditional form of the browser to roll back and forward buttons to implement the forward and backward functions of the page.

UseDisadvantages of Ajax

1. Incompatibility between browsers

Ajax is highly dependent on Javascript, so the implementation methods on different browsers are also different. This indicates that if you want to implement Ajax across browsers, you must handle it accordingly. If some Browsers Do not support Javascript or disable this option, the browser does not support Ajax. Therefore, the previously written Ajax functions cannot be implemented in such browsers. Because Ajax depends on Javascript, Ajax is not suitable for mobile applications.

2. insecure

As the web page is difficult to debug, as your code volume increases, your web page is facing more and more serious threats.

3. added the load on the Web server.

If you add the function of automatically updating data to the server every several seconds on the webpage, the load on your server will become larger and larger, and the server may crash even more seriously.

Yes, since each technology has its advantages over other similar technologies, it will certainly have corresponding disadvantages. Whether it is used or not depends on our actual project needs, it is measured in actual work.

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