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  1. JavaScript Callbacks - W3Schools

    A callback is a function passed as an argument to another function. This technique allows a function to call another function. A callback function can run after another function has …

  2. language agnostic - What is a callback function? - Stack Overflow

    May 5, 2009 · A callback function, also known as a higher-order function, is a function that is passed to another function as a parameter, and the callback function is called (or executed) …

  3. JavaScript Callbacks - GeeksforGeeks

    Aug 2, 2025 · A callback function is a function that is passed as an argument to another function and executed later. A function can accept another function as a parameter. Callbacks allow …

  4. Callback function - Glossary - MDN

    Aug 19, 2025 · A callback function is a function passed into another function as an argument, which is then invoked inside the outer function to complete some kind of routine or action.

  5. What Is Callback? Definition, How It Works, Uses, and Examples

    May 18, 2025 · A callback is a function passed to another function and executed later. It enables one piece of code to respond to events, asynchronous operations, or customizable behavior.

  6. How to Use Callback Functions in JavaScript - freeCodeCamp.org

    Jul 3, 2024 · Callback functions are fundamental in JavaScript for handling asynchronous operations. While they offer a powerful way to manage asynchronous flow, they can become …

  7. What Are Callback Functions? | Baeldung on Computer Science

    Mar 18, 2024 · Callback functions are also known as ‘call-after’ functions, as they are often executed when another code block has finished. Programming languages support these types …

  8. Callback (computer programming) - Wikipedia

    In computer programming, a callback is programming pattern in which a function reference is passed from one context (consumer) to another (provider) such that the provider can call the …

  9. JavaScript CallBack Function - Programiz

    In JavaScript, you can also pass a function as an argument to a function. This function that is passed as an argument inside of another function is called a callback function.

  10. Callback Function in JavaScript: What It Is & How It Works

    Jul 1, 2025 · Learn what a callback function is in JavaScript, how it works with real-life examples, and why it's essential for asynchronous programming and event handling.