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In the world of web development, asynchronous operations are a common occurrence. One of the most prevalent examples is making AJAX (Asynchronous JavaScript and XML) requests, which allow you to fetch data from a server without refreshing the entire page.
However, dealing with asynchronous code can be tricky, and that’s where callbacks come into play. In this article, we’ll explore the concept of callbacks in AJAX requests and provide practical examples to help you master this essential technique.
Understanding Callbacks
Before diving into AJAX requests, let’s first understand what callbacks are. A callback is simply a function that is passed as an argument to another function and is executed after some operation has been completed. In the context of asynchronous operations, callbacks are used to handle the response or error that occurs after the asynchronous operation has finished.
AJAX Requests with Callbacks
AJAX requests are inherently asynchronous, meaning that when you make a request, the code execution doesn’t wait for the response to come back before moving on to the next line.
