---
title: "Discussion on \"Lesson 5: Mastering JavaScript Variables with challenges!\" | Hashnode"
description: "Discussion on \"Lesson 5: Mastering JavaScript Variables with challenges!\". What Are Variables in JavaScript?\nVariables are named containers for storing data values. In JavaScript, you declare variables using var, let, or const.\nlet name = \"Alice\";\nconst PI = 3.14;\nvar count = 0;\n\nScope & Behavior Summary\n\n\n\n\nKeywordScopeHoi..."
url: "https://hashnode.com/posts/lesson-5-mastering-javascript-variables-with-challenges/67fa542ad7094bb28db6a681"
---

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# [Lesson 5: Mastering JavaScript Variables with challenges!](https://javascript-day-1.hashnode.dev/lesson-5-mastering-javascript-variables-with-challenges?utm_source=hashnode&utm_medium=feed)

What Are Variables in JavaScript? Variables are named containers for storing data values. In JavaScript, you declare variables using var, let, or const. let name = "Alice"; const PI = 3.14; var count = 0; Scope & Behavior Summary KeywordScopeHoi...

Apr 12, 2025 · 4 min read · javascript-day-1.hashnode.dev  
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-   [#variables](https://hashnode.com/tag/variables)
-   [#var-let-const](https://hashnode.com/tag/var-let-const)
-   [#scope-is-javascript](https://hashnode.com/tag/scope-is-javascript)
-   [#hoisting-in-js](https://hashnode.com/tag/hoisting-in-js)
-   [#hoisting](https://hashnode.com/tag/hoisting)

## Written by

[manoj ymk](https://hashnode.com/@manoj-ymk)

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