---
title: "Discussion on \"Callbacks in JavaScript: Why They Exist\" | Hashnode"
description: "Discussion on \"Callbacks in JavaScript: Why They Exist\". Learn what callbacks are in JavaScript, why they are used in async programming, and how they work with simple examples."
url: "https://hashnode.com/posts/callbacks-in-javascript-why-they-exist/69c4028010e664c5dab9391b"
---

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# [Callbacks in JavaScript: Why They Exist](https://codexninja.hashnode.dev/callbacks-in-javascript-why-they-exist?utm_source=hashnode&utm_medium=feed)

Learn what callbacks are in JavaScript, why they are used in async programming, and how they work with simple examples.

Mar 25 · 5 min read · codexninja.hashnode.dev  
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## Written by

[Nausheen Faiyaz](https://hashnode.com/@NausheenFaiyaz)

@NausheenFaiyaz · Bihar, India

  
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Developer

I build clean and simple web experiences and learn something new every day.

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