JavaScript Callback Functions Explained | What Are Callbacks in JavaScript?

In this JavaScript tutorial, we break down the concept of callback functions — a powerful tool used to handle asynchronous code in JavaScript. A callback function is simply a function passed as an argument to another function, which is then executed after a certain task is completed. In this example, the fetchData function simulates fetching data with a delay of 1 second using setTimeout(). Once the data is ready, the callback function is executed and logs the fetched data. Watch the video to understand how callbacks help manage asynchronous operations and make your JavaScript code more efficient.

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