---
title: "Discussion on \"Unlocking Modern JavaScript: Spread, Rest, Map & Set\" | Hashnode"
description: "Discussion on \"Unlocking Modern JavaScript: Spread, Rest, Map & Set\". Think about how you usually handle groups of data in JavaScript. You might use arrays (simple lists) or objects (items with named parts). They're great for many things, but sometimes they can feel a bit limited.\n\nHave you ever wanted to easily combin..."
url: "https://hashnode.com/posts/unlocking-modern-javascript-spread-rest-map-and-set/6894e4ccfec6449b4f1c6fb5"
---

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# [Unlocking Modern JavaScript: Spread, Rest, Map & Set](https://syntax-and-stories.hashnode.dev/unlocking-modern-javascript-spread-rest-map-and-set?utm_source=hashnode&utm_medium=feed)

Think about how you usually handle groups of data in JavaScript. You might use arrays (simple lists) or objects (items with named parts). They're great for many things, but sometimes they can feel a bit limited. Have you ever wanted to easily combin...

Aug 7, 2025 · 9 min read · syntax-and-stories.hashnode.dev  
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## Written by

[Hardik Kumar](https://hashnode.com/@iam-hardik)

@iam-hardik · India

  
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From Bugs to Breakthroughs — Building, Breaking, and Blogging Code

👨‍💻 Full Stack Developer | MERN & Beyond | Generative AI Enthusiast As a Full Stack Developer, I specialize in building modern, scalable web applications using the MERN stack and beyond. During my previous internship roles, I contributed to both frontend and backend development on real-world projects, working with technologies like React, Node.js, and microservices-based architectures. With a BTech in Computer Science, I’ve built a strong foundation in programming and software development. I'm passionate about continuous learning and personal growth — and I document my journey as I explore new technologies, sharpen my skills, and strive to become a better engineer every day.

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