---
title: "Discussion on \"Mastering Map and Set in JavaScript\" | Hashnode"
description: "Discussion on \"Mastering Map and Set in JavaScript\". Introduction\nWhen storing collections of data in JavaScript, developers typically reach for Objects or Arrays. While these built-in data structures are extremely versatile, they come with subtle limit"
url: "https://hashnode.com/posts/mastering-map-and-set-in-javascript/6a6c64e170e1ec94fa9bfd50"
---

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

Introduction When storing collections of data in JavaScript, developers typically reach for Objects or Arrays. While these built-in data structures are extremely versatile, they come with subtle limit

Jul 31 · 5 min read · understanding-javascript.hashnode.dev  
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## Written by

[Shalini Nigam](https://hashnode.com/@shalini887)

@shalini887 · Gorakhpur, India

  
[View profile](https://hashnode.com/@shalini887)

Developer. Student. Technical Writer

I like to make complex technical topics easy.

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