---
title: "Discussion on \"Map and Set in JavaScript\" | Hashnode"
description: "Discussion on \"Map and Set in JavaScript\". Objects and arrays do most of the heavy lifting in JavaScript. But sometimes they're the wrong tool, and that's exactly when Map and Set shine.\n\n\nThe Problem With What We Already Have\nBefore diving in"
url: "https://hashnode.com/posts/map-and-set-in-javascript/69e3034cfd22b8ad62a6752c"
---

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

Objects and arrays do most of the heavy lifting in JavaScript. But sometimes they're the wrong tool, and that's exactly when Map and Set shine. The Problem With What We Already Have Before diving in

Apr 18 · 11 min read · web-dev-articles.hashnode.dev  
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-   [#chaicode](https://hashnode.com/tag/chaicode)
-   [#javascript](https://hashnode.com/tag/javascript)
-   [#javascript-set-date-methods](https://hashnode.com/tag/javascript-set-date-methods)
-   [#javascript-mastery](https://hashnode.com/tag/javascript-mastery)

## Written by

[Prafull Chaudhari](https://hashnode.com/@prafulchaudhari)

@prafulchaudhari · Surat, India

  
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