---
title: "Discussion on \"Map and Set in JavaScript\" | Hashnode"
description: "Discussion on \"Map and Set in JavaScript\". JavaScript has always had objects for key-value storage and arrays for lists. They work but they come with quirks that quietly cause problems in certain situations. Map and Set were introduced to solv"
url: "https://hashnode.com/posts/map-and-set-in-javascript/6a0002ebe8e484fb719d2727"
---

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

JavaScript has always had objects for key-value storage and arrays for lists. They work but they come with quirks that quietly cause problems in certain situations. Map and Set were introduced to solv

May 10 · 5 min read · blog-santra.hashnode.dev  
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-   [#js-map](https://hashnode.com/tag/js-map)
-   [#map-and-set-in-javascript](https://hashnode.com/tag/map-and-set-in-javascript)

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