---
title: "Discussion on \"🔍 Understanding Scope, TDZ, Block Scope & Closures in JavaScript — A Deep Dive with DevSync\" | Hashnode"
description: "Discussion on \"🔍 Understanding Scope, TDZ, Block Scope & Closures in JavaScript — A Deep Dive with DevSync\". Discover JavaScript's scope, closures, Temporal Dead Zone, and block scope with expert insights from DevSync for mastering JS's power"
url: "https://hashnode.com/posts/understanding-scope-tdz-block-scope-and-closures-in-javascript-a-deep-dive-with-devsync/6846ed97c0015bc6aef0b8df"
---

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# [🔍 Understanding Scope, TDZ, Block Scope & Closures in JavaScript — A Deep Dive with DevSync](https://inside-javascript-execution.hashnode.dev/understanding-scope-tdz-block-scope-and-closures-in-javascript-a-deep-dive-with-devsync?utm_source=hashnode&utm_medium=feed)

Discover JavaScript's scope, closures, Temporal Dead Zone, and block scope with expert insights from DevSync for mastering JS's power

Jun 9, 2025 · 4 min read · inside-javascript-execution.hashnode.dev  
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-   [#devsync](https://hashnode.com/tag/devsync)
-   [#scopechain](https://hashnode.com/tag/scopechain)
-   [#javascript](https://hashnode.com/tag/javascript)
-   [#web-development](https://hashnode.com/tag/web-development)
-   [#closures](https://hashnode.com/tag/closures)
-   [#tdz](https://hashnode.com/tag/tdz)
-   [#let-and-const](https://hashnode.com/tag/let-and-const)

## Written by

[Ayush Bodele](https://hashnode.com/@ayushbodele)

@ayushbodele

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

🚀 Full Stack Developer | Exploring Generative AI 🔨 Currently building a full stack project 🎨 Passionate about creating animated, interactive web experiences (React, GSAP, JavaScript) 🧠 Diving into Generative AI and integrating it into modern web apps 💬 Let's talk JavaScript, React, UI animations, and creative coding ⚡ Fun fact: I build and learn simultaneously—learning by doing is my motto!

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