JavaScript Tutorial in Hindi #14 | Scope and Hoisting in JS (2025)

Note:- 1 Month Live HTML To React Course:https://topmate.io/mohitdecodes/1519892

JavaScript Tutorial in Hindi || Mohit Decodes

In Day 14 of this beginner-friendly JavaScript series, we explore one of the most confusing but most asked topics in JavaScript interviews – Scope and Hoisting.
Understanding how variables behave inside blocks, functions, or globally, and how JavaScript handles them before code execution, is key to writing bug-free code.
This video breaks it all down in Hindi with examples and interview-level clarity.

📌 Topics Covered:-
1.What is Scope in JavaScript?
2.Global Scope Explained
3.Function/Local Scope with Examples
4.Block Scope with let, const, and var
5.What is Hoisting?
6.How Hoisting Works with var, let, const, and Functions
7.Best Practices to Avoid Scope/Hoisting Bugs

🧠 Best Practices to Avoid Scope Bugs:-
• Always use let and const instead of var.
• Declare variables at the top of their scope.
• Avoid redeclaring variables in the same scope.
• Use const for values that don't change.
• Don’t access variables before declaration (TDZ issue).
• Always initialize variables properly before using them.

⏱️ Timestamps:
00:00 – Introduction
01:05 – What is Scope?
01:34 – Global vs Local vs Block Scope
07:25 – What is Hoisting?
08:20 – Hoisting with var, let, and const
13:17 – Function Hoisting

📢 **Resources:**
👉 **VS Code Download Link**: https://code.visualstudio.com/
👉 **NodeJS Download Link**: https://nodejs.org/en
👉 **GitHub Code**: https://github.com/mohitdjcet/JavaScript-Tutorial

📂 **Playlist Links:**
- React 19 Tutorial (Hindi):[Watch Here](https://www.youtube.com/playlist?list=PLsjpRo2EZP1KK2XFRx8ByU3ZZDRCZcJV6)
- JavaScript Tutorial (Hindi):[Watch Here](https://www.youtube.com/playlist?list=PLsjpRo2EZP1Jikto7Ycy9YGm15a4__jML)
- HTML & CSS Projects (Hindi): [Watch Here](https://www.youtube.com/playlist?list=PLsjpRo2EZP1Jg6j1GpSts13oYOlfV0ARS)
- HTML Full Course (Hindi): [Watch Here](https://www.youtube.com/playlist?list=PLsjpRo2EZP1I-QtilvpAa_WWR6_NybZgS)
- CSS Full Course (Hindi): [Watch Here](https://www.youtube.com/playlist?list=PLsjpRo2EZP1JO1Pm6w6XBzOJ0viRfZjig)
- Git and GitHib Copilot (Hindi): [Watch Here](https://www.youtube.com/playlist?list=PLsjpRo2EZP1KnLAsw76xe5iTqo6hegD6a)

🔗 **Follow Me for Updates:**
- WhatsApp:[Connect with Me](https://whatsapp.com/channel/0029Vb6CABUIHphQqGRYP71u)
- TopMate:[Connect with Me](https://topmate.io/mohitdecodes)
- Instagram: [Connect with Me](https://www.instagram.com/mohit_decodes/)
- Facebook: [Connect with Me](https://www.facebook.com/mohitdecode/)
- LinkedIn: [Connect with Me](https://www.linkedin.com/in/mohitdecodes/)
- GitHub: [Explore My Projects](https://github.com/mohitdjcet/)

#JavaScriptScope #JSHoisting #JavaScriptTutorial #MohitDecodes #JavaScriptInHindi #letVsVar #HoistingExplained #WebDevelopment #InterviewQuestions #JavaScriptBeginners #hoisting #scope #let #var #const #variable

JavaScript scope, global scope, function scope, block scope, let vs var, const scope, hoisting in JavaScript, JavaScript hoisting, hoisting examples, variable hoisting, function hoisting, JavaScript tutorial in Hindi, Mohit Decodes, JS scope interview questions, JavaScript beginner tutorial

---
Copyright Notice:
© Mohit Decodes. All rights reserved. Unauthorized reproduction or distribution of this content is prohibited. For permissions, contact via LinkedIn or email.

Видео JavaScript Tutorial in Hindi #14 | Scope and Hoisting in JS (2025) канала Mohit Decodes