---
title: "Discussion on \"const, let, var when to use what?\" | Hashnode"
description: "Discussion on \"const, let, var when to use what?\". When to use const, let and var?"
url: "https://hashnode.com/posts/const-let-var-when-to-use-what/60c0ea7cd2660e41762e4303"
---

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# [const, let, var when to use what?](https://madhushreekunder.hashnode.dev/const-let-var-when-to-use-what?utm_source=hashnode&utm_medium=feed)

When to use const, let and var?

Jun 9, 2021 · 4 min read · madhushreekunder.hashnode.dev  
Updated Jun 14, 2021  
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-   [#javascript](https://hashnode.com/tag/javascript)
-   [#variables](https://hashnode.com/tag/variables)
-   [#es6](https://hashnode.com/tag/es6)

## Written by

[Madhushree Kunder](https://hashnode.com/@MadhushreeKunder)

@MadhushreeKunder · India

  
[View profile](https://hashnode.com/@MadhushreeKunder)

MERN Stack Developer

## Responses 1

Markdown supported · ⌘↵ to post

[Jarrod Watts](https://hashnode.com/@JarrodWatts)

[Jun 11, 2021](https://hashnode.com/posts/const-let-var-when-to-use-what/60c0ea7cd2660e41762e4303/comment/60c2b60ea25fa357af83ea24)

Cool tip that var is declared globally