---
title: "Discussion on \"Keywords - Let, Const, Var in Js\" | Hashnode"
description: "Discussion on \"Keywords - Let, Const, Var in Js\". Understand the differences between var, let, and const in JavaScript. Learn their scopes, reassignment, and best usage practices for modern coding"
url: "https://hashnode.com/posts/keywords-let-const-var-in-js/68bd106a094ec4b81ac593d3"
---

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# [Keywords - Let, Const, Var in Js](https://keyword-let-const-var.hashnode.dev/keywords-let-const-var-in-js?utm_source=hashnode&utm_medium=feed)

Understand the differences between var, let, and const in JavaScript. Learn their scopes, reassignment, and best usage practices for modern coding

Jun 27, 2025 · 2 min read · keyword-let-const-var.hashnode.dev  
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-   [#javascript](https://hashnode.com/tag/javascript)
-   [#keywords](https://hashnode.com/tag/keywords)
-   [#let](https://hashnode.com/tag/let)
-   [#const](https://hashnode.com/tag/const)
-   [#var](https://hashnode.com/tag/var)

## Written by

[Priyanshu Vishwakarma](https://hashnode.com/@priyanshu-vkarma)

@priyanshu-vkarma

  
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Web developer

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