---
title: "Comment by Mahesh Rao on \"Hey, Ever get the question how does the Callback Function work in Javascript?\" | Hashnode"
description: "Callback comes super handy if you want to create a dynamic form that automatically calculates the total from the previous inputs without even a click of button."
url: "https://hashnode.com/posts/callback-function-event-loop-in-javascript-reactjs-web-development/61d154bf0cfc5655c1845e66/comment/61d171c80cfc5655c18460d7"
---

[Discussion](https://hashnode.com/posts/callback-function-event-loop-in-javascript-reactjs-web-development/61d154bf0cfc5655c1845e66)

Comment [Hey, Ever get the question how does the Callback Function work in Javascript?](https://hashnode.com/posts/callback-function-event-loop-in-javascript-reactjs-web-development/61d154bf0cfc5655c1845e66)

[Mahesh Rao](https://hashnode.com/@MaheshRao98)

[Jan 2, 2022](https://hashnode.com/posts/callback-function-event-loop-in-javascript-reactjs-web-development/61d154bf0cfc5655c1845e66/comment/61d171c80cfc5655c18460d7)

Callback comes super handy if you want to create a dynamic form that automatically calculates the total from the previous inputs without even a click of button. It's great that you shared about this valuable knowledge. Thanks dude.

[Denil Gabani](https://hashnode.com/@denilgabani)

[Jan 2, 2022](https://hashnode.com/posts/callback-function-event-loop-in-javascript-reactjs-web-development/61d154bf0cfc5655c1845e66/comment/61d171c80cfc5655c18460d7#reply-61d17bea0413645f5c7bd880)

Hey Mahesh👋🏻, You are 💯right. If we see the most features of famous Javascript frameworks are built upon these callback functions. We can't even imagine how Javascript world🌎 will look without callback functions.

I am glad that you liked♥ it. It motivates me😃 and more to come💪🏻.