A Brief Introduction To Ajax
Ajax is a group of web programming technologies, which use several different web languages and web technologies for the server-side user-interfaces to generate synchronous client-server web applications. With Ajax, web programs can simultaneously retrieve and send data from a remote server as synchronously as possible without impeding the performance of the current page. Basically, Ajax is an extensible markup language (XML) that allows developers to construct web pages interactively and dynamically, making them interactive. The benefits of Ajax over traditional methods of website development include: Ajax increases the speed and quality of transactions by avoiding server side scripts. When used with scripting languages such as PHP, ASP, ColdFusion, Java, or Perl, Ajax scripts are executed in the background without the users knowing of their existence until they are needed. Also, with Ajax pages, there is no need to wait for all the pages in a database to be downloaded and opened, which reduces the total amount of bandwidth usage for a website.
While writing Ajax code, developers separate the Ajax logic from the rest of the code so that the generated server response has a standardized format. This separation also ensures that each Ajax request is correctly interpreted by the server, which eliminates the possibility of any missing, unexpected responses. It is important to note that when Ajax is combined with a scripting language, a variety of issues may occur. These issues are described below:
When Ajax is combined with synchronous scripts, the script can run even when there is no active connection on the server. If scripts are written as they would normally be written, an Ajax request will only be initiated when there is an active connection to the server. Asynchronous scripts, on the other hand, will not initiate a request until there is a response from the server. This makes Ajax programming very easy, but it has several limitations.
In addition to using various languages and polyglots, it is also necessary to use the right tools for building AJAX applications. Although there are several different components available, the most important part of building an AJAX application is the Ajax middleware. Not only does this component to enable a developer to write simple AJAX applications, it also facilitates the use of common scripts, database queries, and other common features of Ajax. The best part about using an Ajax middleware is that it will run all the different components that make up an Ajax application without the need for manually starting each one individually. For example, a basic HTML page containing a button can be made active by means of an Ajax middleware which will then allow users to click the button to go to the home page.