---
title: "Discussion on \"React Virtual Dom, Diffing , Reconciliation and React Fiber in short\" | Hashnode"
description: "Discussion on \"React Virtual Dom, Diffing , Reconciliation and React Fiber in short\". What is Virtual DOM?\nVirtual DOM is a JavaScript object representation of the real DOM - a lightweight copy in memory\nMemory tip:\nReal DOM = Actual House (expensive to modify)\nVirtual DOM = Blueprint of house (cheap to modify)\nVisual Representation:\n..."
url: "https://hashnode.com/posts/react-virtual-dom-diffing-reconciliation-and-react-fiber-in-short/68cf1f9c9c98256eac37c334"
---

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Discussion

# [React Virtual Dom, Diffing , Reconciliation and React Fiber in short](https://marufrayhan.hashnode.dev/react-virtual-dom-diffing-reconciliation-and-react-fiber-in-short?utm_source=hashnode&utm_medium=feed)

What is Virtual DOM? Virtual DOM is a JavaScript object representation of the real DOM - a lightweight copy in memory Memory tip: Real DOM = Actual House (expensive to modify) Virtual DOM = Blueprint of house (cheap to modify) Visual Representation: ...

Sep 20, 2025 · 3 min read · marufrayhan.hashnode.dev  
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## Written by

[Md Maruf Rayhan](https://hashnode.com/@marufrayhan)

@marufrayhan · Finland

  
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Developer, Learner And Thinker

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