AJAX (Asynchronous JavaScript and XML) is a technique used in web development to send and receive data from a server asynchronously.
It allows you to update parts of a web page without reloading the entire page, providing a smoother and more responsive user experience.
AJAX is commonly used for tasks such as loading new content, submitting form data, and fetching data from a server.
AJAX requests are typically made using the XMLHttpRequest object in JavaScript, which allows you to send HTTP requests to a server and handle the response.
With the advent of modern web technologies like fetch and Promises, AJAX is often implemented using these newer APIs.
Overall, AJAX is a powerful technique in JavaScript for creating dynamic and interactive web applications.