Ajax, for example

By Tuttle W. C. (Wilbur C.)

Ajax is a technique used in web development that allows for the exchange of data between a web server and a browser without the need for a page refresh. It enables seamless and interactive user experiences by sending data asynchronously in the background, resulting in improved performance and efficiency. For example, Ajax can be used to dynamically update content on a webpage without the need for the page to be fully reloaded.