---
title: "Discussion on \"What is Closure in JavaScript?\" | Hashnode"
description: "Discussion on \"What is Closure in JavaScript?\". What is a closure? How does closure work? Why closure is important? Where to use closure?"
url: "https://hashnode.com/posts/what-is-closure-in-javascript/624821444b4dde0dc0be6817"
---

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# [What is Closure in JavaScript?](https://gurveen.hashnode.dev/what-is-closure-in-javascript?utm_source=hashnode&utm_medium=feed)

What is a closure? How does closure work? Why closure is important? Where to use closure?

Apr 2, 2022 · 4 min read · gurveen.hashnode.dev  
Updated Apr 15, 2023  
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-   [#javascript](https://hashnode.com/tag/javascript)
-   [#closure](https://hashnode.com/tag/closure)
-   [#javascript-modules](https://hashnode.com/tag/javascript-modules)
-   [#functions](https://hashnode.com/tag/functions)

## Written by

[Gurveen Singh](https://hashnode.com/@Gurveen)

@Gurveen · India

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

Turning code into treasure, one line at a time!

A passionate and versatile engineer with a strong foundation in computer science and IT fundamentals, I have been on an incredible journey for over 3+ years and still counting! Throughout this exhilarating experience, I have honed my skills in HTML, CSS, JavaScript, and React.js, leveraging these technologies to build dynamic and visually captivating web applications. My proficiency in UI/UX design and tools like Figma allows me to bridge the gap between aesthetics and functionality, ensuring seamless interactions and delightful user journeys. In my quest for growth, I have explored the power of TypeScript, Bootstrap, and Tailwind CSS to enhance development efficiency and create responsive, mobile-first designs. My commitment to continuous learning has led me to delve into GoJS, enabling me to deliver interactive and data-driven visualizations. Beyond technical expertise, my understanding of computer science principles equips me to approach challenges with a systematic and problem-solving mindset, leading to innovative solutions. Collaboration is at the heart of my work, and I thrive in cross-functional teams, transforming ideas into reality and exceeding project goals. With a passion for staying at the forefront of the ever-evolving tech landscape, I am excited to explore new possibilities and push boundaries in the world of frontend development. I am enthusiastic about leveraging my knowledge and experience to create meaningful and impactful digital solutions that empower users and leave a lasting impression. Let's connect and embark on a journey of innovation and growth together.

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