---
title: "Discussion on \"Map and Set in JavaScript\" | Hashnode"
description: "Discussion on \"Map and Set in JavaScript\". Learn how JavaScript Map and Set work, how they differ from objects and arrays, and when to use them effectively."
url: "https://hashnode.com/posts/map-and-set-in-javascript/6a00186de3eebc2e2036bf30"
---

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# [Map and Set in JavaScript](https://webfundamentals.hashnode.dev/map-and-set-in-javascript?utm_source=hashnode&utm_medium=feed)

Learn how JavaScript Map and Set work, how they differ from objects and arrays, and when to use them effectively.

May 10 · 6 min read · webfundamentals.hashnode.dev  
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## Written by

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