---
title: "Discussion on \"Callbacks in JavaScript: Why They Exist\" | Hashnode"
description: "Discussion on \"Callbacks in JavaScript: Why They Exist\". Callbacks are functions that run later — after an async task or event. Learn why they exist, with examples and callback hell explained."
url: "https://hashnode.com/posts/callbacks-in-javascript-why-they-exist/69fe5b85f239332df4177a89"
---

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# [Callbacks in JavaScript: Why They Exist](https://imohit1o1.hashnode.dev/callbacks-in-javascript-why-they-exist?utm_source=hashnode&utm_medium=feed)

Callbacks are functions that run later — after an async task or event. Learn why they exist, with examples and callback hell explained.

May 8 · 5 min read · imohit1o1.hashnode.dev  
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## Written by

[Mohit Kumar](https://hashnode.com/@imohit159)

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