---
title: "Discussion on \"Callbacks in JavaScript: Why They Exist\" | Hashnode"
description: "Discussion on \"Callbacks in JavaScript: Why They Exist\". Functions as Values\nWe are familiar with functions in JavaScript.\nLet's take an example of an add function.\nfunction add(a, b) {\n    return a + b;\n}\n\nconsole.log(add(2, 3));\n\nOutput\n5\n\nJust like we ca"
url: "https://hashnode.com/posts/callbacks-in-javascript-why-they-exist/6a231f1e857478689f66b1cb"
---

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

Functions as Values We are familiar with functions in JavaScript. Let's take an example of an add function. function add(a, b) { return a + b; } console.log(add(2, 3)); Output 5 Just like we ca

Mar 31 · 5 min read · async-javascript.hashnode.dev  
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## Written by

[Janardhan Verma](https://hashnode.com/@janardan-v)

@janardan-v · Delhi, India

  
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Aspiring software developer documenting my journey in building, learning, and understanding technology. Computer Science student at NSUT Delhi.

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